CN112760063A - Adhesive composition - Google Patents

Abstract

The invention relates to the technical field of adhesive materials, in particular to an adhesive composition. The raw materials comprise the following components in parts by weight: 40-56 parts of acrylic polymer, 2-6 parts of plasticizer, 0.2-3 parts of curing agent and 20-42 parts of solvent. The adhesive composition prepared by the invention has excellent optical sensitivity and sensitivity, is strong in high temperature resistance and moisture resistance, has good adhesion capability with a base material, is especially suitable for the field of photoresist, is beneficial to reducing the production cost and prolonging the service life, and has wide application prospect.

Description

Adhesive composition

Technical Field

The invention relates to the technical field of adhesive materials, in particular to an adhesive composition.

Background

Adhesives are an important auxiliary material and have a wide range of roles in packaging operations. An adhesive is a substance that firmly connects or attaches together the same or different materials by interfacial action (chemical force, physical force). The adhesive has various varieties, is suitable for different plane materiel and different application occasions, and can be divided into polyurethane adhesives, silicone adhesives, polyimide adhesives, polyacrylate adhesives and the like according to different raw materials. The acrylate adhesive can endow the adhesive with different characteristics of hardness, adhesive force, solvent resistance, flexibility, wear resistance, weather resistance and the like according to the difference of monomers of the acrylate adhesive, and is widely applied to various fields of daily chemical industry, textile auxiliary agents, medical treatment and health care and the like due to wide raw materials and safe and simple synthesis process.

The photoresist is one of the key materials for fine pattern processing in the microelectronic technology, and particularly, the development of large-scale and ultra-large-scale integrated circuits in recent years greatly promotes the research, development and application of the photoresist. The printing industry is another important area of photoresist application. Printed Circuit Boards (PCBs) are important components in the electronics industry, and almost every electronic device, if any, includes electronic components such as integrated circuits, and the PCB is used to electrically interconnect the electronic components. Photoresist is an organic compound that changes solubility in a developing solution after exposure to ultraviolet light. The photoresist used in the manufacture of silicon wafers is coated on the surface of the silicon wafer in a liquid state and then dried to form a film. This particular application scenario places higher sensitivity, accuracy requirements, and higher resist stripping characteristics on adhesives used in the photoresist field. Chinese patent CN201811236318.4 provides a photosensitive resin composition synthesized by acrylate monomers, which reduces the thermal initiation temperature of polymerization crosslinking reaction through specific initiator selection, and improves the feasibility of applying acrylic resin materials to electronic equipment; however, the photosensitive resin composition prepared by the invention still has the defects of poor optical sensitivity and poor material dimensional stability. Therefore, preparing a high-sensitivity and stable adhesive composition suitable for the photoresist field becomes one of the problems to be solved in the field.

Disclosure of Invention

The invention provides the adhesive composition, which solves the problems of low optical sensitivity, poor sensitivity and poor dimensional stability of the adhesive in the prior art; the adhesive composition with high sensitivity and stability suitable for the field of photoresist is obtained.

The invention provides an adhesive composition, which comprises the following raw materials in parts by weight: 40-56 parts of acrylic polymer, 2-6 parts of plasticizer, 0.2-3 parts of curing agent and 20-42 parts of solvent.

In a preferred embodiment, the plasticizer comprises at least one of epoxidized soybean oil, dioctyl phthalate, dioctyl adipate, palm oil, chlorinated paraffin.

In a preferred embodiment, the curing agent is an epoxy curing agent, has a viscosity of 300-400mPa.S and a test temperature of 25 ℃.

In a preferred embodiment, the raw materials for preparing the acrylic polymer include a polymerization monomer, an initiator, an additive and toluene.

In a preferred embodiment, the polymerized monomers include monomer a, monomer B and monomer C.

In a preferred embodiment, the initiator comprises a persulfate and/or an azo-type compound.

In a preferred embodiment, the additive is an alkyl peroxide.

In a preferred embodiment, the alkyl peroxide is an alkyl peroxide containing a tertiary carbon.

In a preferred embodiment, the adhesive composition is prepared by a method comprising:

s1, preparing an acrylic polymer;

s2, sequentially putting the acrylic polymer prepared in the step S1 and a solvent into a reaction device, uniformly stirring, adding a plasticizer, and stirring for 0.5-2 h;

s3, adding a curing agent into the reaction device, and continuously stirring and reacting for 1-3h to obtain a finished product of the adhesive composition.

In a second aspect, the present invention provides a use of the adhesive composition as described above, in the field of photoresist technology.

Has the advantages that:

the adhesive composition prepared by the invention has excellent optical sensitivity and sensitivity, is strong in high temperature resistance and moisture resistance, has good adhesion capability with a base material, is especially suitable for the field of photoresist, is beneficial to reducing the production cost and prolonging the service life, and has wide application prospect.

Detailed Description

The disclosure may be understood more readily by reference to the following detailed description of preferred embodiments of the invention and the examples included therein. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In case of conflict, the present specification, including definitions, will control.

The term "prepared from …" as used herein is synonymous with "comprising". The terms "comprises," "comprising," "includes," "including," "has," "having," "contains," "containing," or any other variation thereof, as used herein, are intended to cover a non-exclusive inclusion. For example, a composition, process, method, article, or apparatus that comprises a list of elements is not necessarily limited to only those elements but may include other elements not expressly listed or inherent to such composition, process, method, article, or apparatus.

The conjunction "consisting of …" excludes any unspecified elements, steps or components. If used in a claim, the phrase is intended to claim as closed, meaning that it does not contain materials other than those described, except for the conventional impurities associated therewith. When the phrase "consisting of …" appears in a clause of the subject matter of the claims rather than immediately after the subject matter, it defines only the elements described in the clause; other elements are not excluded from the claims as a whole.

When an amount, concentration, or other value or parameter is expressed as a range, preferred range, or as a range of upper preferable values and lower preferable values, this is to be understood as specifically disclosing all ranges formed from any pair of any upper range limit or preferred value and any lower range limit or preferred value, regardless of whether ranges are separately disclosed. For example, when a range of "1 to 5" is disclosed, the described range should be interpreted to include the ranges "1 to 4", "1 to 3", "1 to 2 and 4 to 5", "1 to 3 and 5", and the like. When a range of values is described herein, unless otherwise stated, the range is intended to include the endpoints thereof and all integers and fractions within the range.

The singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. "optional" or "any" means that the subsequently described event or events may or may not occur, and that the description includes instances where the event occurs and instances where it does not.

Approximating language, as used herein throughout the specification and claims, is intended to modify a quantity, such that the invention is not limited to the specific quantity, but includes portions that are literally received for modification without substantial change in the basic function to which the invention is related. Accordingly, the use of "about" to modify a numerical value means that the invention is not limited to the precise value. In some instances, the approximating language may correspond to the precision of an instrument for measuring the value. In the present description and claims, range limitations may be combined and/or interchanged, including all sub-ranges contained therein if not otherwise stated.

In addition, the indefinite articles "a" and "an" preceding an element or component of the invention are not intended to limit the number requirement (i.e., the number of occurrences) of the element or component. Thus, "a" or "an" should be read to include one or at least one, and the singular form of an element or component also includes the plural unless the stated number clearly indicates that the singular form is intended.

"Polymer" means a polymeric compound prepared by polymerizing monomers of the same or different types. The generic term "polymer" embraces the terms "homopolymer", "copolymer", "terpolymer" and "interpolymer". "interpolymer" means a polymer prepared by polymerizing at least two different monomers. The generic term "interpolymer" includes the term "copolymer" (which is generally used to refer to polymers prepared from two different monomers) and the term "terpolymer" (which is generally used to refer to polymers prepared from three different monomers). It also includes polymers made by polymerizing more monomers. "blend" means a polymer formed by two or more polymers being mixed together by physical or chemical means.

In order to solve the above problems, a first aspect of the present invention provides an adhesive composition, which comprises the following raw materials in parts by weight: 40-56 parts of acrylic polymer, 2-6 parts of plasticizer, 0.2-3 parts of curing agent and 20-42 parts of solvent.

In some preferred embodiments, the plasticizer comprises at least one of epoxidized soybean oil, dioctyl phthalate, dioctyl adipate, palm oil, chlorinated paraffin.

In some preferred embodiments, the curing agent is an epoxy curing agent, has a viscosity of 300-400mpa.s, and a test temperature of 25 ℃.

In some preferred embodiments, the starting materials for the preparation of the acrylic polymer include polymerized monomers, initiators, additives and toluene.

Further preferably, the raw materials for preparing the acrylic polymer comprise: according to the weight portion, 40-53 portions of polymerization monomer, 0.1-2 portions of initiator, 0.01-1.2 portions of additive and 40-60 portions of toluene.

In some preferred embodiments, the polymerized monomers include monomer a, monomer B, and monomer C.

More preferably, the monomer A comprises at least one of methyl methacrylate, vinyl acetate, styrene, acrylonitrile, vinyl acetate, methyl methacrylate, ethyl methacrylate, isobutyl methacrylate, tert-butyl methacrylate and hexafluorobutyl methacrylate.

Still more preferably, the monomer A is methyl methacrylate and styrene.

The monomer A is methyl methacrylate and styrene, and the weight ratio of the methyl methacrylate to the styrene is 1: (3-6).

Further preferably, the monomer B is at least one selected from butyl acrylate, ethyl acrylate, 2-ethylhexyl acrylate, and butyl methacrylate.

Further preferably, the monomer C is at least one selected from the group consisting of acrylic acid, methacrylic acid, hydroxyethyl methacrylate, hydroxyethyl acrylate, hydroxypropyl methacrylate, hydroxypropyl acrylate, N-methylolacrylamide, glycidyl methacrylate, and diallyl phthalate.

Still more preferably, the monomer C is methacrylic acid and diallyl phthalate.

The weight ratio of methacrylic acid to diallyl phthalate is (0.2-8)

In some preferred embodiments, the weight ratio of monomer a, monomer B and monomer C is (1-1.5): (0.05-0.2): 1.

the invention discovers that when the monomer A is selected to be methyl methacrylate and styrene, the monomer B is at least one of butyl acrylate, ethyl acrylate, 2-ethylhexyl acrylate and butyl methacrylate, the monomer C is methacrylic acid and diallyl phthalate, and the weight ratio of the monomer A, the monomer B and the monomer C is (1-1.5): (0.05-0.2): 1, the obtained acrylic polymer has better compatibility with a plasticizer and a curing agent in the adhesive composition, the prepared adhesive composition has excellent optical sensitivity and accuracy, the developing effect is good, the size stability of the adhesive composition is strong, the temperature resistance and the steam resistance are improved, and the service life of the adhesive composition is longer when the adhesive composition is applied to photoresist.

In some preferred embodiments, the initiator comprises a persulfate and/or an azo-type compound.

In some preferred embodiments, the additive is an alkyl peroxide.

In some preferred embodiments, the alkyl peroxide is an alkyl peroxide containing a tertiary carbon.

Further preferably, the tertiary carbon-containing alkyl peroxide includes at least one of di-tert-amyl peroxide, di-tert-butyl peroxide, and tert-butyl hydroperoxide.

In some preferred embodiments, the adhesive composition is prepared by a method comprising:

s1, preparing an acrylic polymer;

s2, sequentially putting the acrylic polymer prepared in the step S1 and a solvent into a reaction device, uniformly stirring, adding a plasticizer, and stirring for 0.5-2 h;

s3, adding a curing agent into the reaction device, and continuously stirring and reacting for 1-3h to obtain a finished product of the adhesive composition.

In some preferred embodiments, the method for preparing the acrylic polymer comprises: under nitrogen atmosphere, adding toluene into a reaction kettle, heating to 80-92 ℃, adding the monomer A and the monomer C, and stirring for 3-5 hours under heat preservation; adding an initiator, and stirring for 0.5-1h under heat preservation; heating at the speed of 6-15 ℃/min, adding the monomer B when the temperature is raised to 95-103 ℃, and continuously stirring for 1.5-3h to obtain an acrylic polymer coarse material; cooling to 60-80 ℃, adding the additive, keeping the temperature for 1-2h, cooling and filtering to obtain the acrylic polymer finished product.

In a second aspect, the present invention provides a use of the adhesive composition as described above, in the field of photoresist technology.

Examples

In order to better understand the above technical solutions, the following detailed descriptions will be provided with reference to specific embodiments. It should be noted that the following examples are only for illustrating the present invention and should not be construed as limiting the scope of the present invention, and that the insubstantial modifications and adaptations of the present invention by those skilled in the art based on the above disclosure are still within the scope of the present invention. In addition, the raw materials are commercially available and the extraction methods of the extract are all conventional extraction methods, if not otherwise specified.

Example 1.

This example provides an adhesive composition, comprising the following raw materials: 47 parts of acrylic polymer, 3 parts of plasticizer, 1.4 parts of curing agent and 32 parts of solvent.

The preparation raw materials of the acrylic polymer comprise: 46 parts of polymerized monomer, 1.2 parts of initiator, 0.6 part of additive and 50 parts of toluene.

The monomer A is methyl methacrylate and styrene, wherein the mass ratio of methyl methacrylate to styrene is 1: 4.5.

the monomer B is 2 ethylhexyl acrylate.

The monomer C is methacrylic acid and diallyl phthalate, and the mass ratio of the methacrylic acid to the diallyl phthalate is 1: 0.4.

the weight ratio of the monomer A to the monomer B to the monomer C is 1: 0.09: 1.

the initiator is azobisisoheptonitrile, and the CAS number is 4419-11-8.

The additive is di-tert-amyl peroxide, and the CAS number is 10508-09-5.

The preparation method of the acrylic polymer comprises the following steps: under nitrogen atmosphere, adding toluene into a reaction kettle, heating to 86 ℃, adding the monomer A and the monomer C, and stirring for 4 hours under heat preservation; adding an initiator, and stirring for 0.5h under heat preservation; heating at the speed of 10 ℃/min, adding the monomer B when the temperature is raised to 98 ℃, and continuously stirring for 2h to obtain acrylic polymer coarse material; cooling to 75 ℃, adding the additive, keeping the temperature at 75 ℃ for 1.5h, cooling and filtering to obtain the acrylic polymer finished product.

The plasticizer is epoxidized soybean oil, purchased from Suzhou Huashi environmental protection science and technology, Inc.

The curing agent is D.E.H.530 and is purchased from Kyong chemical company, Shanghai.

The solvent is toluene, and the CAS number is 108-88-3.

The preparation method of the adhesive composition comprises the following steps:

s1, preparing an acrylic polymer;

s2, sequentially putting the acrylic polymer prepared in the step S1 and a solvent into a reaction device, uniformly stirring, adding a plasticizer, and continuously stirring for 1 h;

and S3, adding a curing agent into the reaction device, and continuously stirring for 2 hours to obtain a finished product of the adhesive composition.

Example 2.

This example provides an adhesive composition, comprising the following raw materials: 47 parts of acrylic polymer, 3 parts of plasticizer, 1.4 parts of curing agent and 32 parts of solvent.

The preparation raw materials of the acrylic polymer comprise: 46 parts of polymerized monomer, 1.2 parts of initiator, 0.6 part of additive and 50 parts of toluene.

The monomer A is methyl methacrylate and styrene, wherein the mass ratio of methyl methacrylate to styrene is 1: 4.5.

the monomer B is 2 ethylhexyl acrylate.

The monomer C is methacrylic acid and diallyl phthalate, and the mass ratio of the methacrylic acid to the diallyl phthalate is 1: 0.4.

the weight ratio of the monomer A to the monomer B to the monomer C is 0.8: 0.09: 1.

the initiator is azobisisoheptonitrile, and the CAS number is 4419-11-8.

The additive is di-tert-amyl peroxide, and the CAS number is 10508-09-5.

The preparation method of the acrylic polymer comprises the following steps: under nitrogen atmosphere, adding toluene into a reaction kettle, heating to 86 ℃, adding the monomer A and the monomer C, and stirring for 4 hours under heat preservation; adding an initiator, and stirring for 0.5h under heat preservation; heating at the speed of 10 ℃/min, adding the monomer B when the temperature is raised to 98 ℃, and continuously stirring for 2h to obtain acrylic polymer coarse material; cooling to 75 ℃, adding the additive, keeping the temperature at 75 ℃ for 1.5h, cooling and filtering to obtain the acrylic polymer finished product.

The plasticizer is epoxidized soybean oil, purchased from Suzhou Huashi environmental protection science and technology, Inc.

The curing agent is D.E.H.530 and is purchased from Kyong chemical company, Shanghai.

The solvent is toluene, and the CAS number is 108-88-3.

The preparation method of the adhesive composition comprises the following steps:

s1, preparing an acrylic polymer;

s2, sequentially putting the acrylic polymer prepared in the step S1 and a solvent into a reaction device, uniformly stirring, adding a plasticizer, and continuously stirring for 1 h;

and S3, adding a curing agent into the reaction device, and continuously stirring for 2 hours to obtain a finished product of the adhesive composition.

Example 3.

This example provides an adhesive composition, comprising the following raw materials: 47 parts of acrylic polymer, 3 parts of plasticizer, 1.4 parts of curing agent and 32 parts of solvent.

The preparation raw materials of the acrylic polymer comprise: 46 parts of polymerized monomer, 1.2 parts of initiator, 0.6 part of additive and 50 parts of toluene.

The monomer A is methyl methacrylate and styrene, wherein the mass ratio of methyl methacrylate to styrene is 1: 4.5.

the monomer B is butyl methacrylate.

The monomer C is methacrylic acid and diallyl phthalate, and the mass ratio of the methacrylic acid to the diallyl phthalate is 1: 0.4.

the weight ratio of the monomer A to the monomer B to the monomer C is 1: 0.09: 1.

the initiator is azobisisoheptonitrile, and the CAS number is 4419-11-8.

The additive is di-tert-amyl peroxide, and the CAS number is 10508-09-5.

The preparation method of the acrylic polymer comprises the following steps: under nitrogen atmosphere, adding toluene into a reaction kettle, heating to 86 ℃, adding the monomer A and the monomer C, and stirring for 4 hours under heat preservation; adding an initiator, and stirring for 0.5h under heat preservation; heating at the speed of 10 ℃/min, adding the monomer B when the temperature is raised to 98 ℃, and continuously stirring for 2h to obtain acrylic polymer coarse material; cooling to 75 ℃, adding the additive, keeping the temperature at 75 ℃ for 1.5h, cooling and filtering to obtain the acrylic polymer finished product.

The plasticizer is epoxidized soybean oil, purchased from Suzhou Huashi environmental protection science and technology, Inc.

The curing agent is D.E.H.530 and is purchased from Kyong chemical company, Shanghai.

The solvent is toluene, and the CAS number is 108-88-3.

The preparation method of the adhesive composition comprises the following steps:

s1, preparing an acrylic polymer;

s2, sequentially putting the acrylic polymer prepared in the step S1 and a solvent into a reaction device, uniformly stirring, adding a plasticizer, and continuously stirring for 1 h;

and S3, adding a curing agent into the reaction device, and continuously stirring for 2 hours to obtain a finished product of the adhesive composition.

Example 4.

This example provides an adhesive composition, comprising the following raw materials: 47 parts of acrylic polymer, 3 parts of plasticizer, 1.4 parts of curing agent and 32 parts of solvent.

The preparation raw materials of the acrylic polymer comprise: 46 parts of polymerized monomer, 1.2 parts of initiator, 0.6 part of additive and 50 parts of toluene.

The monomer A is methyl methacrylate and styrene, wherein the mass ratio of methyl methacrylate to styrene is 1: 4.5.

the monomer B is 2 ethylhexyl acrylate.

The monomer C is methacrylic acid and diallyl phthalate, and the mass ratio of the methacrylic acid to the diallyl phthalate is 1: 2.

the weight ratio of the monomer A to the monomer B to the monomer C is 0.9: 0.09: 1.

the initiator is azobisisoheptonitrile, and the CAS number is 4419-11-8.

The additive is di-tert-amyl peroxide, and the CAS number is 10508-09-5.

The preparation method of the acrylic polymer comprises the following steps: under nitrogen atmosphere, adding toluene into a reaction kettle, heating to 86 ℃, adding the monomer A and the monomer C, and stirring for 4 hours under heat preservation; adding an initiator, and stirring for 0.5h under heat preservation; heating at the speed of 10 ℃/min, adding the monomer B when the temperature is raised to 98 ℃, and continuously stirring for 2h to obtain acrylic polymer coarse material; cooling to 75 ℃, adding the additive, keeping the temperature at 75 ℃ for 1.5h, cooling and filtering to obtain the acrylic polymer finished product.

The plasticizer is epoxidized soybean oil, purchased from Suzhou Huashi environmental protection science and technology, Inc.

The curing agent is D.E.H.530 and is purchased from Kyong chemical company, Shanghai.

The solvent is toluene, and the CAS number is 108-88-3.

The preparation method of the adhesive composition comprises the following steps:

s1, preparing an acrylic polymer;

s2, sequentially putting the acrylic polymer prepared in the step S1 and a solvent into a reaction device, uniformly stirring, adding a plasticizer, and continuously stirring for 1 h;

and S3, adding a curing agent into the reaction device, and continuously stirring for 2 hours to obtain a finished product of the adhesive composition.

Example 5.

This example provides an adhesive composition, comprising the following raw materials: 47 parts of acrylic polymer, 3 parts of plasticizer, 1.4 parts of curing agent and 32 parts of solvent.

The preparation raw materials of the acrylic polymer comprise: 46 parts of polymerized monomer, 1.2 parts of initiator, 0.6 part of additive and 50 parts of toluene.

The monomer A is methyl methacrylate and styrene, wherein the mass ratio of methyl methacrylate to styrene is 1: 4.5.

the monomer B is 2 ethylhexyl acrylate.

The monomer C is methacrylic acid and diallyl phthalate, and the mass ratio of the methacrylic acid to the diallyl phthalate is 1: 0.4.

the weight ratio of the monomer A to the monomer B to the monomer C is 1: 0.09: 1.

the initiator is azobisisoheptonitrile, and the CAS number is 4419-11-8.

The additive is di-tert-amyl peroxide, and the CAS number is 10508-09-5.

The preparation method of the acrylic polymer comprises the following steps: under nitrogen atmosphere, adding toluene into a reaction kettle, heating to 86 ℃, adding the monomer A and the monomer C, and stirring for 4 hours under heat preservation; adding an initiator, and stirring for 0.5h under heat preservation; heating at the speed of 10 ℃/min, adding the monomer B when the temperature is raised to 98 ℃, and continuously stirring for 2h to obtain acrylic polymer coarse material; cooling to 75 ℃, adding the additive, keeping the temperature at 75 ℃ for 1.5h, cooling and filtering to obtain the acrylic polymer finished product.

The plasticizer is epoxidized soybean oil, purchased from Suzhou Huashi environmental protection science and technology, Inc.

The curing agent is diamino diphenyl sulfone with CAS number of 80-08-0.

The solvent is toluene, and the CAS number is 108-88-3.

The preparation method of the adhesive composition comprises the following steps:

s1, preparing an acrylic polymer;

s2, sequentially putting the acrylic polymer prepared in the step S1 and a solvent into a reaction device, uniformly stirring, adding a plasticizer, and continuously stirring for 1 h;

and S3, adding a curing agent into the reaction device, and continuously stirring for 2 hours to obtain a finished product of the adhesive composition.

Example 6.

This example provides an adhesive composition, comprising the following raw materials: 47 parts of acrylic polymer, 3 parts of plasticizer, 1.4 parts of curing agent and 32 parts of solvent.

The preparation raw materials of the acrylic polymer comprise: 46 parts of polymerized monomer, 1.2 parts of initiator and 50 parts of toluene in parts by weight.

The monomer A is methyl methacrylate and styrene, wherein the mass ratio of methyl methacrylate to styrene is 1: 4.5.

the monomer B is 2 ethylhexyl acrylate.

The monomer C is methacrylic acid and diallyl phthalate, and the mass ratio of the methacrylic acid to the diallyl phthalate is 1: 0.4.

the weight ratio of the monomer A to the monomer B to the monomer C is 1: 0.09: 1.

the initiator is azobisisoheptonitrile, and the CAS number is 4419-11-8.

The preparation method of the acrylic polymer comprises the following steps: under nitrogen atmosphere, adding toluene into a reaction kettle, heating to 86 ℃, adding the monomer A and the monomer C, and stirring for 4 hours under heat preservation; adding an initiator, and stirring for 0.5h under heat preservation; heating at the speed of 10 ℃/min, adding the monomer B when the temperature is raised to 98 ℃, and continuously stirring for 2h to obtain acrylic polymer coarse material; cooling to 75 ℃, preserving the heat for 1.5h, cooling and filtering to obtain the acrylic polymer finished product.

The plasticizer is epoxidized soybean oil, purchased from Suzhou Huashi environmental protection science and technology, Inc.

The curing agent is D.E.H.530 and is purchased from Kyong chemical company, Shanghai.

The solvent is toluene, and the CAS number is 108-88-3.

The preparation method of the adhesive composition comprises the following steps:

s1, preparing an acrylic polymer;

s2, sequentially putting the acrylic polymer prepared in the step S1 and a solvent into a reaction device, uniformly stirring, adding a plasticizer, and continuously stirring for 1 h;

and S3, adding a curing agent into the reaction device, and continuously stirring for 2 hours to obtain a finished product of the adhesive composition.

Example 7.

This example provides an adhesive composition, comprising the following raw materials: 47 parts of acrylic polymer, 3 parts of plasticizer, 1.4 parts of curing agent and 32 parts of solvent.

The preparation raw materials of the acrylic polymer comprise: 46 parts of polymerized monomer, 2.5 parts of initiator, 0.6 part of additive and 50 parts of toluene.

The monomer A is methyl methacrylate and styrene, wherein the mass ratio of methyl methacrylate to styrene is 1: 4.5.

the monomer B is 2 ethylhexyl acrylate.

The monomer C is methacrylic acid and diallyl phthalate, and the mass ratio of the methacrylic acid to the diallyl phthalate is 1: 0.4.

the weight ratio of the monomer A to the monomer B to the monomer C is 1: 0.09: 1.

the initiator is azobisisoheptonitrile, and the CAS number is 4419-11-8.

The additive is di-tert-amyl peroxide, and the CAS number is 10508-09-5.

The preparation method of the acrylic polymer comprises the following steps: under nitrogen atmosphere, adding toluene into a reaction kettle, heating to 86 ℃, adding the monomer A and the monomer C, and stirring for 4 hours under heat preservation; adding an initiator, and stirring for 0.5h under heat preservation; heating at the speed of 10 ℃/min, adding the monomer B when the temperature is raised to 98 ℃, and continuously stirring for 2h to obtain acrylic polymer coarse material; cooling to 75 ℃, adding the additive, keeping the temperature at 75 ℃ for 1.5h, cooling and filtering to obtain the acrylic polymer finished product.

The plasticizer is epoxidized soybean oil, purchased from Suzhou Huashi environmental protection science and technology, Inc.

The curing agent is D.E.H.530 and is purchased from Kyong chemical company, Shanghai.

The solvent is toluene, and the CAS number is 108-88-3.

The preparation method of the adhesive composition comprises the following steps:

s1, preparing an acrylic polymer;

s2, sequentially putting the acrylic polymer prepared in the step S1 and a solvent into a reaction device, uniformly stirring, adding a plasticizer, and continuously stirring for 1 h;

and S3, adding a curing agent into the reaction device, and continuously stirring for 2 hours to obtain a finished product of the adhesive composition.

Example 8.

This example provides an adhesive composition, comprising the following raw materials: 47 parts of acrylic polymer, 3 parts of plasticizer, 1.4 parts of curing agent and 32 parts of solvent.

The preparation raw materials of the acrylic polymer comprise: 46 parts of polymerized monomer, 1.2 parts of initiator, 0.6 part of additive and 50 parts of toluene.

The monomer A is methyl methacrylate and styrene, wherein the mass ratio of methyl methacrylate to styrene is 1: 4.5.

the monomer B is 2 ethylhexyl acrylate.

The monomer C is methacrylic acid and diallyl phthalate, and the mass ratio of the methacrylic acid to the diallyl phthalate is 1: 0.4.

the weight ratio of the monomer A to the monomer B to the monomer C is 1: 0.09: 1.

the initiator is azobisisoheptonitrile, and the CAS number is 4419-11-8.

The additive is di-tert-amyl peroxide, and the CAS number is 10508-09-5.

The preparation method of the acrylic polymer comprises the following steps: under nitrogen atmosphere, adding toluene into a reaction kettle, heating to 86 ℃, adding the monomer A, the monomer C, the monomer B and the initiator, and continuously stirring for 2 hours to obtain acrylic polymer coarse material; cooling to 75 ℃, adding the additive, keeping the temperature at 75 ℃ for 1.5h, cooling and filtering to obtain the acrylic polymer finished product.

The plasticizer is epoxidized soybean oil, purchased from Suzhou Huashi environmental protection science and technology, Inc.

The curing agent is D.E.H.530 and is purchased from Kyong chemical company, Shanghai.

The solvent is toluene, and the CAS number is 108-88-3.

The preparation method of the adhesive composition comprises the following steps:

s1, preparing an acrylic polymer;

s2, sequentially putting the acrylic polymer prepared in the step S1 and a solvent into a reaction device, uniformly stirring, adding a plasticizer, and continuously stirring for 1 h;

and S3, adding a curing agent into the reaction device, and continuously stirring for 2 hours to obtain a finished product of the adhesive composition.

Performance test methods the adhesive compositions prepared in examples 1-8 were uniformly applied to a glass substrate, heated in an oven at 85 ℃ for 48h, and taken out to obtain a film sample to be tested.

Sensitivity:

taking a film sample to be detected, carrying out I-Line exposure and development, wherein the development is carried out for 60 seconds by taking tetramethylammonium hydroxide (2.38 wt%) as a developer, and then observing the energy under which the film does not remain, wherein the obtained energy is the sensitivity.

Stability:

and (3) storing the membrane sample to be detected in an environment with the relative humidity of 85% for 96h, measuring the viscosity variation of the photosensitive resin composition before and after storage, and defining that the variation is less than 10% as excellent stability, the variation is 10-20% as stable quantity, and the variation is more than 20% as poor stability.

Adhesion force:

and (4) measuring the binding capacity of the sample to be measured and the substrate through a hundred-grid knife test. The hundred grid knife test is to use a hundred grid knife to evenly draw out grids with certain specification sizes, and evaluate the adhesion degree of a coating film to a base material by evaluating the integrity degree of the coating film in the grids, and the adhesion degree is expressed by ASTM grades. The method specifically comprises the following steps:

and 5, stage: the edges of the cuts are completely smooth, and the edges of the grids are not peeled off;

4, level: a small piece is peeled off at the intersection of the cuts, and the actual damage in the grid cutting area is not more than 5% of that in the grid cutting area;

and 3, level: the edges and/or intersections of the cuts have a stripping phenomenon, and the stripping area is between 5 and 15 percent of the grid-scribing area;

and 2, stage: the edges of the cuts are partially peeled or peeled in a whole piece, and/or part of the lattices are peeled in a whole piece; the area stripped is between 15-35% of the grid area;

level 1: the edge of the cut is largely peeled off or some squares are completely peeled off, and the peeled area is 35-65% of the scribed area;

level 0: the peeled area is 65% or more of the scribed area.

Performance test data

TABLE 1 results of the Performance test of examples 1 to 8

Finally, it is pointed out that the foregoing examples are illustrative only, serving to explain some of the characteristics of the process according to the invention. The appended claims are intended to claim as broad a scope as is contemplated, and the examples presented herein are merely illustrative of selected implementations in accordance with all possible combinations of examples. Accordingly, it is applicants' intention that the appended claims are not to be limited by the choice of examples illustrating features of the invention. Also, where numerical ranges are used in the claims, subranges therein are included, and variations in these ranges are also to be construed as possible being covered by the appended claims.

Claims (10)

1. The adhesive composition is characterized by comprising the following raw materials in parts by weight: 40-56 parts of acrylic polymer, 2-6 parts of plasticizer, 0.2-3 parts of curing agent and 20-42 parts of solvent.

2. An adhesive composition according to claim 1, wherein said plasticizer comprises at least one of epoxidized soybean oil, dioctyl phthalate, dioctyl adipate, palm oil, chlorinated paraffin.

3. The adhesive composition as claimed in claim 1, wherein the curing agent is an epoxy curing agent, has a kinematic viscosity of 300-400mpa.s and a test temperature of 25 ℃.

4. The adhesive composition of claim 1, wherein the acrylic polymer is prepared from the group consisting of polymerized monomers, initiators, additives and toluene.

5. An adhesive composition according to claim 4, wherein said polymerized monomers comprise monomer A, monomer B and monomer C.

6. An adhesive composition according to claim 4, wherein said initiator comprises a persulfate and/or an azo compound.

7. An adhesive composition according to claim 4, wherein said additive is an alkyl peroxide.

8. An adhesive composition according to claim 7, wherein said alkyl peroxide is an alkyl peroxide containing a tertiary carbon.

9. The adhesive composition as claimed in claim 1, wherein the adhesive composition is prepared by a method comprising:

s1, preparing an acrylic polymer;

s2, sequentially putting the acrylic polymer prepared in the step S1 and a solvent into a reaction device, uniformly stirring, adding a plasticizer, and stirring for 0.5-2 h;

s3, adding a curing agent into the reaction device, and continuously stirring for 1-3h to obtain a finished product of the adhesive composition.

10. Use of an adhesive composition according to any of claims 1-9 in the field of photoresist technology.