Modified plant fibers plastic composite that a kind of low aldehyde ketone distributes and application thereofTechnical field
The present invention relates to a kind of modified plant fibers plastic composite and application thereof, particularly a kind of low aldehyde ketones to distributeModified plant fibers plastic composite and application thereof.
Background technology
Plant fiber plastic composite has the characteristics that cheap, degradable, performance is good, is present field of compound materialResearch and development focus.Patent CN106750877A discloses a kind of plant fiber modified polypropylene composite material and its preparation process, changesProperty PP composite material mechanical property it is good, degradability is good, manufacture it is at low cost.
Patent CN106519556A discloses a kind of graft modification polypropylene wood plastic composite, utilizes maleic anhydride, mistakeOxidation diisopropylbenzene (DIPB), polyfunctional group crosslinking coagent significantly improve compatibility and its interface bond strength so that wood and plastic compositeToughness, tensile strength and the impact strength of material are obviously improved.
CN106543755A discloses the Wood-plastic material of a kind of injection straw powder and polypropylene composite materials, agricultural residues powderProportion is far above 50%, has the characteristics that at low cost, recyclability is strong.
But since plastics contain harmful volatile aldehyde ketone compound in itself（VOC）And plant fiber plasticsComposite material is in production inevitably since thermal-oxidative degradation can also generate volatile aldehyde ketone compound, including formaldehyde, secondAldehyde, methacrylaldehyde, benzaldehyde etc..These substances are inevitably discharged into air and cause indoor, vehicle in useInterior environment is contaminated, and gently then causes stimulus to the sense organ, and severe one causes pathological reaction occur.Therefore, low aldehyde ketone plant fiber is developedPlastic composite has very big Development volue.
The content of the invention
The modified plant fibers plastic composite and its use distributed it is an object of the present invention to provide a kind of low aldehyde ketoneOn the way.The characteristics of it is low that there is the plant fiber plastic composite of the present invention aldehyde ketone to distribute, and smell is small；And preparation method is simple, intoThis is low, easy to operate.
Technical scheme：The modified plant fibers plastic composite that a kind of low aldehyde ketone distributes, by weight,Include 0.1-0.4 parts of 5-95 parts of plastics, 5-95 parts of plant fiber, 0.1-1 parts of crosslinking agent and antioxidant；Its preparation method bagInclude following steps：
1）Nucleopilic reagent is soluble in water, nucleopilic reagent solution, lotion or suspension are configured to, obtains A product；
2）Plant fiber is put into A product, 1-24h is stirred, obtains B product；
3）B product are filtered, filter residue is dried at 100-150 DEG C, obtains C product；
4）Will C product grinding after cross 100-2000 mesh sieves, after sieving with after crosslinking agent, antioxidant and plastic blend through band vacuum pumpDouble screw extruder squeeze out, extrusion temperature is 180-280 DEG C, squeezes out postcooling, is granulated and answers up to modified plant fibers plasticsCondensation material
The modified plant fibers plastic composite that foregoing low aldehyde ketone distributes, by weight, the modified plant fibers modelingMaterial composite material includes 40-60 parts of plastics, 40-60 parts of plant fiber, 0.3-0.6 parts of crosslinking agent and antioxidant 0.2-0.3Part.
The modified plant fibers plastic composite that foregoing low aldehyde ketone distributes, by weight, the improved plant are fineDimension plastic composite includes 0.2 part of 50 parts of plastics, 50 parts of plant fiber, 0.4 part of crosslinking agent and antioxidant.
The modified plant fibers plastic composite that foregoing low aldehyde ketone distributes, the crosslinking agent are maleic anhydride or peroxideChange diisopropylbenzene (DIPB).
The modified plant fibers plastic composite that foregoing low aldehyde ketone distributes, the antioxidant for antioxidant 1010,Irgasfos 168, antioxidant 264,2,6- bis-（Octadecyl）- 4- methylphenols, antioxidant SP, antioxidant 54 or antioxidant754。
The modified plant fibers plastic composite that foregoing low aldehyde ketone distributes, the nucleopilic reagent include but not limited to urinateElement, biuret, amide, cyanuric acid, melamine, cyanuric acid, benzoyl hydrazine, careless acid dihydrazide, hydroxyacyl hydroxyacyl hydrazine, 3- hydroxylsBase -2- naphthoic acids hydrazides, methyl carbazates, ethylcarbonyl group hydrazine, benzotriazole, uridine uracil, thymidine, thymus glandIt is pyrimidine, inosine hypoxanthine, xanthine, xanthine, uric acid, allantoin, guanine, guanosine, niacinamide, orotic acid, urazole, sweetUrea, hydantoins, allopurinol, theobromine, sulphadiazine, sulfadimidine, promise are bright, salicylazosulfapyridine, sulfanilamide (SN) diformazanOxygen pyrimidine, bacteresulf, benzene sulfonyl hydrazide, benzimidazoline and hydrazine t-butyl formate, the concentration of A product is 0.01-10mol/L.
The modified plant fibers plastic composite that foregoing low aldehyde ketone distributes, the plant fiber put into A product, need to stirMix 8-12h.
The modified plant fibers plastic composite that foregoing low aldehyde ketone distributes, the filter residue are dried at 120 DEG C.
The modified plant fibers plastic composite that foregoing low aldehyde ketone distributes, the step 4）In, it is after C product are ground800-1200 mesh sieves are crossed, with being squeezed after crosslinking agent, antioxidant and plastic blend through the double screw extruder with vacuum pump after sievingGo out, extrusion temperature is 210-240 DEG C.
A kind of modified plant fibers plastic composite that foregoing low aldehyde ketone distributes furniture, floor, door and window, whole indoorsBody cabinet, foot kick the application in terms of line, wardrobe, guardrail, furred ceiling and interior gadget.
Beneficial effects of the present invention：
In the plant fiber plastic composite of the present invention, impregnated by the way that plant fiber is added in nucleopilic reagent solution, so as to obtainThe composite material that must be modified, greatly reduce aldehyde ketone in plant fiber plastic composite distributes and alleviates materialSmell has more wide application prospect.
Specific embodiment
With reference to embodiment, the present invention is further illustrated, but is not intended as the foundation limited the present invention.
The embodiment of the present invention
Control group：A kind of plant fiber plastic composite by 80 parts of plastics, 20 parts of plant fiber, 0.2 part of maleic anhydride and resists1,010 0.2 parts of oxygen agent is made, but without the nucleopilic reagent modification by the present invention.
Embodiment 1：The modified plant fibers plastic composite that a kind of low aldehyde ketone distributes by weight, includes modeling0.2 part of 80 parts of material, 20 parts of plant fiber, 0.2 part of maleic anhydride and antioxidant 1010；Its preparation method includes the following steps：
1）Urea is soluble in water, the urea liquid that concentration is 1mol/L is configured to, obtains A product；
2）1Kg plant fibers are put into 1LA product, 12h is stirred, obtains B product；
3）B product are filtered, filter residue is dried at 110 DEG C, obtains C product；
4）800 mesh sieves will be crossed after the grinding of C product, after sieving with after crosslinking agent, antioxidant and plastic blend through double with vacuum pumpScrew extruder squeezes out, and extrusion temperature is 200 DEG C, squeezes out postcooling, is granulated up to modified plant fibers plastic composite.
Embodiment 2：The modified plant fibers plastic composite that a kind of low aldehyde ketone distributes by weight, includes modeling0.1 part of 95 parts of material, 5 parts of plant fiber, 0.1 part of maleic anhydride and irgasfos 168；Its preparation method includes the following steps：
1）Benzoyl hydrazine is soluble in water, the benzoyl hydrazine solution that concentration is 1mol/L is configured to, obtains A product；
2）1Kg plant fibers are put into the A product of 1L, 1h is stirred, obtains B product；
3）B product are filtered, filter residue is dried at 110 DEG C, obtains C product；
4）800 mesh sieves will be crossed after the grinding of C product, after sieving with after crosslinking agent, antioxidant and plastic blend through double with vacuum pumpScrew extruder squeezes out, and extrusion temperature is 200 DEG C, squeezes out postcooling, is granulated up to modified plant fibers plastic composite.
Embodiment 3：The modified plant fibers plastic composite that a kind of low aldehyde ketone distributes by weight, includes modeling80 parts of material, 20 parts of plant fiber, 0.2 part of cumyl peroxide and 2,6- bis-（Octadecyl）0.2 part of -4- methylphenols；ItsPreparation method includes the following steps：
1）Glycine is soluble in water, the glycine solution that concentration is 2mol/L is configured to, obtains A product；
2）1Kg plant fibers are put into the A product of 1L, 5h is stirred, obtains B product；
3）B product are filtered, filter residue is dried at 105 DEG C, obtains C product；
4）800 mesh sieves will be crossed after the grinding of C product, after sieving with after crosslinking agent, antioxidant and plastic blend through double with vacuum pumpScrew extruder squeezes out, and extrusion temperature is 200 DEG C, squeezes out postcooling, is granulated up to modified plant fibers plastic composite.
Embodiment 4：The modified plant fibers plastic composite that a kind of low aldehyde ketone distributes by weight, includes modeling0.2 part of 90 parts of material, 10 parts of plant fiber, 0.2 part of maleic anhydride and antioxidant SP；Its preparation method includes the following steps：
1）Cyanuric acid is soluble in water, the cyanuric acid suspension that concentration is 3mol/L is configured to, obtains A product；
2）1Kg plant fibers are put into 1L90 DEG C of A product, 10h is stirred, obtains B product；
3）B product are filtered, filter residue is dried at 120 DEG C, obtains C product；
4）800 mesh sieves will be crossed after the grinding of C product, after sieving with after crosslinking agent, antioxidant and plastic blend through double with vacuum pumpScrew extruder squeezes out, and extrusion temperature is 220 DEG C, squeezes out postcooling, is granulated up to modified plant fibers plastic composite.
Embodiment 5：The modified plant fibers plastic composite that a kind of low aldehyde ketone distributes by weight, includes modeling54 0.2 parts of 85 parts of material, 15 parts of plant fiber, 0.2 part of cumyl peroxide and antioxidant；Its preparation method includes following stepSuddenly：
1）Histidine is soluble in water, the salicylazosulfapyridine suspension that concentration is 1mol/L is configured to, obtains A product；
2）1Kg plant fibers are put into the A product of 1L, 4h is stirred, obtains B product；
3）B product are filtered, filter residue is dried at 130 DEG C, obtains C product；
4）800 mesh sieves will be crossed after the grinding of C product, after sieving with after crosslinking agent, antioxidant and plastic blend through double with vacuum pumpScrew extruder squeezes out, and extrusion temperature is 200 DEG C, squeezes out postcooling, is granulated up to modified plant fibers plastic composite.
In plant fiber plastic composite made from above-described embodiment 1-5, pair of the aldehyde of aldehyde and control groupMore as shown in the table than data, as can be seen from the table, the content of aldehyde is bright in plant fiber plastic composite produced by the present inventionIt is aobvious to reduce.
Embodiment 6：The modified plant fibers plastic composite that above-mentioned low aldehyde ketone distributes furniture, floor, door indoorsWindow, integral cabinet, foot kick the application in terms of line, wardrobe, guardrail, furred ceiling and interior gadget.