Multi-functional composite wall paperTechnical field
The present invention relates to a kind of multi-functional composite wall paper, be mainly used among decorative material for wall surface technical field.
Background technology
Wallpaper, also referred to as wallpaper, it is a kind of widely used house decorative material.Because wallpaper has changing style, color is various, pattern enriches, safety and environmental protection, easy construction, affordable, be easy to the incomparable feature of other house decorative materials multiple such as replacing, therefore obtain the universal of certain degree at developed countries and regions such as America and Europe, Southeast Asia, Japan and Korea S.Along with the lifting of our people's living standard, wallpaper because of the diversity of its color and style, and extensively by the favor of consumer, especially obtaining more and more youthful high praise pursuing individual character.
Ripe day by day along with China's wallpaper industry, and the reinforcement of people's safety and environmental protection consciousness, while people pay close attention to wallpaper color and style varied, pay close attention to the performances such as the practicality of product and safety and environmental protection more.There is scratch-resistant, easy to clean, ageing-resistant, high temperature resistant, fire prevention, waterproof, Novel wall paper except the function such as formaldehyde, deodorizing, start market of selling well.Related product is mainly through at the coating of wallpaper layer top layer, bonding, hot melt or one or more layers functional coating of compound, reach the function such as fire-retardant, easy cleaning, insulation, scratch-resistant, waterproof accordingly, the Chinese patent of this respect has CN102776805, CN103343489, CN103452002, CN103452003, CN103485504, CN100343449, CN100526554, CN101979799, CN103374176 etc.By functional wallpaper prepared by these methods, the problem that all existence one is important is exactly the functional comparatively single of its wallpaper.
Due to the disappearance of relevant laws and regulations and self-discipline, in the market, the quality of correlation function wallpaper product is very different, and the function of most wallpaper product is comparatively single.In order to solve inflammable, the problem such as intensity is low, not wear-resisting, thermo-labile, waterproof is poor, ageing resistace is weak of wallpaper in prior art, the invention provides a kind of multi-functional composite wall paper.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of multi-functional composite wall paper, have safety non-toxic, high strength, rub resistance, high temperature resistant, anti-aging, fire prevention, waterproof function.
The present invention is achieved through the following technical solutions.
A kind of multi-functional composite wall paper, is followed successively by top layer by bottom: wallpaper layer, adhesive layer, polyimide film layer;
Above-mentioned polyimide film layer contains fluorine aromatic diamine and fluorinated aromatic dianhydride.
Further, above-mentioned polyimide film layer is according to molar percent, comprise 1 of 40%-60%, 4 of 4-bis-(4 '-amino-2 '-4-trifluoromethylphenopendant) biphenyl, 20%-30%, 2 of 4 '-two (hexafluoro isopropyl alkene) two anhydride phthalic acids, 20%-30%, 3,3 ', 4-bibenzene tetracarboxylic dianhydride.
Further, above-mentioned polyimide film layer is by 1,4-bis-(4 '-amino-2 '-4-trifluoromethylphenopendant) biphenyl, 4,4 '-two (hexafluoro isopropyl alkene) two anhydride phthalic acids, 2,3,3 ', 4-bibenzene tetracarboxylic dianhydride synthesizes under the dicyandiamide solution taking dimethylacetylamide as reaction.
Further, above-mentioned polyimide film layer thickness is 20-50 micron, and light transmittance is about 90% completely, and glass transition temperature is higher than 280 DEG C, and initial heat decomposition temperature is higher than 460 DEG C.
Polyimides is the aromatic heterocycle polymer compound that molecular structure contains imide chain link, because its main chain bond energy is large and contain the conjugation of a large amount of fragrant heterocycles in strand, therefore cause polyimide molecule nontoxic, and have excellent electrical insulating property, mechanical property, high temperature resistant, radiation hardness, resistance to chemical attack, waterproof and from fire from the performance such as putting out.
But traditional Kapton is synthesized by aromatic diamines and aromatic dianhydride, can occur in molecule between the two or intermolecular Charger transfer effect, form charge transfer complex (CTC), and then make the color of Kapton darker.Traditional Kapton, and to be absorbed by 100% at 400nm place less than 50% in the transmitance of 500nm light, and the light transmittance of overall visible region is lower, and therefore film presents yellow or brown, and inconvenience is used for the surface coating of wallpaper.
Because the color of traditional Kapton is comparatively dark, and present yellow or brown, inconvenience is used for the surface coating of wallpaper.Therefore, the present invention selects the Kapton synthesized by fluorinated aromatic diamines and fluorinated aromatic dianhydride as overlay film Kapton of the present invention, and this film, except all characteristics with traditional Kapton, also has the characteristic of colourless high transparency concurrently.
Why the present invention's Kapton used has the characteristic of colourless high transparency, because of the present invention's Kapton used, fluoro-containing group is introduced in its polyimide molecule, and the electronegativity that fluorine atom is larger, the formation of charge transfer complex in the polyimide molecule after polymerization can be reduced, namely reach the object suppressing CTC to be formed, thus reach the effect increasing the Kapton transparency.
Further, above-mentioned adhesive is the one in polyamide-based hot melt adhesive, cyanoacrylate curable adhesive or pressure-sensitive aqua type acrylic emulsion adhesive.
Further, the model Technomelt2084 of above-mentioned polyamide-based hot melt adhesive, density is 0.98g/mL, and softening point is 167-173 DEG C, and viscosity is 200-400mPas (180 DEG C).
Further, the model of above-mentioned cyanoacrylate curable adhesive is Loctite4304, and viscosity is 20mPas (25 DEG C), can adopt ultraviolet light/visible-light curing.
Further, the model of above-mentioned pressure-sensitive aqua type acrylic emulsion adhesive is AdhesinJ1626, and solid content is 67%, and viscosity is 2000-3400mPas (25 DEG C), and pH is 6-8 (25 DEG C).
In order to solve the bonding problem between polyimide film layer and dissimilar traditional wallpaper, and the problem such as heat-resisting, ageing-resistant, the high strength of mucigel itself, polyamide-based hot melt adhesive that the present invention is preferred, cyanoacrylate curable adhesive and pressure-sensitive aqua type acrylic emulsion adhesive a kind of is the mucigel of Kapton and wallpaper layer.
Particularly: polyamide-based hot melt adhesive Technomelt2084, there is good high temperature resistant, ageing-resistant and oil resistance, there is good low temperature flexibility simultaneously, this adhesive is 180 DEG C time, there is lower melt viscosity, be applicable to High-speed machining and Kapton and wide arc gap wallpaper bonding.Cyanoacrylate curable adhesive Loctite4304, has excellent adhesive property, the high grade of transparency, at-54 DEG C to 100 DEG C Long-Time Service, can be applicable to the bonding of High-speed machining and Kapton and PVC class wallpaper.Pressure-sensitive aqua type acrylic emulsion adhesive A dhesinJ1626, it is a kind of high solids content, Emulsion Adhesive fixing fast, there is good heat resistance, ageing-resistant performance, surface adhesion and higher cohesive force, be applicable to the bonding of rapid processing and Kapton and pure paper wallpaper or nonwoven wallpaper.
Further, above-mentioned wallpaper layer is the one in pure paper wallpaper, nonwoven wallpaper, PVC foam wallpaper, resinae wallpaper, dry goods wallpaper or cork class wallpaper.
Beneficial effect of the present invention:
Multi-functional composite wall paper provided by the present invention has the characteristics such as safety non-toxic, high strength, rub resistance, high temperature resistant, anti-aging, fire prevention, waterproof, can be widely used in the places such as saloon bar, high-end office building, high-end residential, public place, kitchen, toilet.
Detailed description of the invention
According to embodiment, the present invention is described in further detail below.
Embodiment 1
Use oxygen plasma process for treating surface, surface plasma process is carried out to 30 μm of thick heat resistant type colourless high transparency flexible polyimide films, the plasma treatment face of Kapton adopts Full-automatic high-speed roll coater, roller coat one deck pressure-sensitive aqua type acrylic emulsion adhesive A dhesinJ1626, adhesive roller coat amount is 40g/m2simultaneously, adopt full-automatic equipment for coating film, the Kapton of pre-coat adhesive and composite plant fiber pure paper wallpaper are extruded smooth through warm-up mill, pressure roll, pressure is 1.0MPa, and prebake in the baking oven being sent to 60-100 DEG C, through guide roller, circulating water roller, jockey pulley, rolling, obtains finished product.Become paper index as follows: quantitatively 154g/m2, tensile strength 109MPa, dielectric strength 24.6kV/mm, expansion and contraction 0.4%, 90 DEG C of water 72h do not soak into and surface without significant change, it is surperficial that from fire, oneself puts out (duration of ignition 5s, flame temperature 500 DEG C).
Embodiment 2
Use oxygen plasma process for treating surface, surface plasma process is carried out to 30 μm of thick heat resistant type colourless high transparency flexible polyimide films, the plasma treatment face of Kapton adopts Full-automatic high-speed roll coater, roller coat one deck pressure-sensitive aqua type acrylic emulsion adhesive A dhesinJ1626, adhesive roller coat amount is 45g/m2simultaneously, adopt full-automatic equipment for coating film, the Kapton of pre-coat adhesive and hybrid nonwoven printed wallpaper are extruded smooth through warm-up mill, pressure roll, pressure is 1.0MPa, and prebake in the baking oven being sent to 60-100 DEG C, through guide roller, circulating water roller, jockey pulley, rolling, obtains finished product.Become paper index as follows: quantitatively 165g/m2, tensile strength 121MPa, dielectric strength 20.5kV/mm, expansion and contraction 0.3%, 90 DEG C of water 72h do not soak into and surface without significant change, it is surperficial that from fire, oneself puts out (duration of ignition 5s, flame temperature 500 DEG C).
Embodiment 3
Use oxygen plasma process for treating surface, surface plasma process is carried out to 20 μm of thick heat resistant type colourless high transparency flexible polyimide films, the plasma treatment face of Kapton adopt full automatic ultraviolet solidify flush coater, spraying one deck cyanoacrylate curable adhesive Loctite4304, adhesive roller coat amount is 80g/m2, meanwhile, adopt full-automatic equipment for coating film, extrude smooth by the Kapton of pre-coat adhesive and the hard foamed wallpaper of PVC through pressure roll, pressure is 1.0MPa, is sent to the solidification of ultraviolet light photocuring room, through guide roller, circulating water roller, jockey pulley, rolling, obtains finished product.Become paper index as follows: quantitatively 225g/m2, tensile strength 78MPa, dielectric strength 16.3kV/mm, expansion and contraction 0.4%, 90 DEG C of water 72h do not soak into and surface without significant change, it is surperficial that from fire, oneself puts out (duration of ignition 5s, flame temperature 500 DEG C).
Embodiment 4
Use oxygen plasma process for treating surface, surface plasma process is carried out to 30 μm of thick heat resistant type colourless high transparency flexible polyimide films, the plasma treatment face of Kapton adopt full automatic ultraviolet solidify flush coater, spraying one deck cyanoacrylate curable adhesive Loctite4304, adhesive roller coat amount is 25g/m2, meanwhile, adopt full-automatic equipment for coating film, extrude smooth by the Kapton of pre-coat adhesive and PVC paste resin glue face wall paper through pressure roll, pressure is 1.0MPa, is sent to the solidification of ultraviolet light photocuring room, through guide roller, circulating water roller, jockey pulley, rolling, obtains finished product.Become paper index as follows: quantitatively 182g/m2, tensile strength 117MPa, dielectric strength 22.9kV/mm, expansion and contraction 0.3%, 90 DEG C of water 72h do not soak into and surface without significant change, it is surperficial that from fire, oneself puts out (duration of ignition 5s, flame temperature 500 DEG C).
Embodiment 5
Use oxygen plasma process for treating surface, surface plasma process is carried out to 50 μm of thick heat resistant type colourless high transparency flexible polyimide films, the plasma treatment face of Kapton adopts full-automatic roller coating machine, the polyamide-based hot melt adhesive Technomelt2084 of roller coat one deck, adhesive roller coat amount is 90g/m2, meanwhile, adopt full-automatic equipment for coating film, extrude smooth by the Kapton of pre-coat adhesive and oak bark cork wallpaper through warm-up mill, pressure roll, pressure is 1.0MPa, and through guide roller, circulating water roller, jockey pulley, rolling, obtains finished product.Become paper index as follows: quantitatively 261g/m2, tensile strength 95MPa, dielectric strength 15.4kV/mm, expansion and contraction 0.4%, 90 DEG C of water 72h do not soak into and surface without significant change, it is surperficial that from fire, oneself puts out (duration of ignition 5s, flame temperature 500 DEG C).
Embodiment 6
Use oxygen plasma process for treating surface, surface plasma process is carried out to 40 μm of thick heat resistant type colourless high transparency flexible polyimide films, the plasma treatment face of Kapton adopts full-automatic roller coating machine, the polyamide-based hot melt adhesive Technomelt2084 of roller coat one deck, adhesive roller coat amount is 60g/m2, meanwhile, adopt full-automatic equipment for coating film, extrude smooth by the Kapton of pre-coat adhesive and crudefiber crop braided fabric wallpaper through warm-up mill, pressure roll, pressure is 1.0MPa, and through guide roller, circulating water roller, jockey pulley, rolling, obtains finished product.Become paper index as follows: quantitatively 239g/m2, tensile strength 146MPa, dielectric strength 27.1kV/mm, expansion and contraction 0.2%, 90 DEG C of water 72h do not soak into and surface without significant change, it is surperficial that from fire, oneself puts out (duration of ignition 5s, flame temperature 500 DEG C).
Above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to allow the personage being familiar with this art can understand content of the present invention and be implemented, can not limit the scope of the invention with this.All equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed in protection scope of the present invention.