Boiling-resistant color-changing polypropylene composite material and preparation method thereof
A technology of composite materials and polypropylene, applied in the field of polypropylene materials, can solve problems such as discoloration, complaints, and affect consumers' use experience, and achieve the effect of low heat generation, strong dispersion ability, and improved heat resistance
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Embodiment 1
[0035] A kind of boil-resistant discoloration polypropylene composite material, its raw material comprises by weight: 90 parts of polypropylene resin, 2 parts of acrylonitrile-styrene copolymer, 2 parts of compatibilizer, 1 part of filler modifier, 5 parts of filler, 0.2 parts of antioxidant, 0.2 parts of weather resistance agent, 0.1 part of heat-resistant modifier, 0.5 parts of lubricant;
[0036] Wherein, the compatibilizer is polypropylene grafted styrene grafted maleic anhydride PP-PS-MAH, wherein, the maleic anhydride grafting rate is 0.5%;
[0037] In the preparation process of polypropylene-grafted styrene-grafted maleic anhydride PP-PS-MAH, dicumyl peroxide is dissolved in styrene, then mixed with polypropylene and maleic anhydride, and then melt-extruded A polypropylene-grafted styrene-grafted maleic anhydride PP-PS-MAH was obtained, wherein the weight ratio of polypropylene, styrene, maleic anhydride, and dicumyl peroxide was 93.6:5.0:1.4:0.2.
[0038] The preparat...
Embodiment 2
[0040] A kind of boil-resistant discoloration polypropylene composite material, its raw material comprises by weight: 77 parts of polypropylene resin, 6 parts of acrylonitrile-styrene copolymer, 4 parts of compatibilizer, 3 parts of filler modifier, 10 parts of filler, 0.3 parts of antioxidant, 0.3 parts of weather resistance agent, 0.7 parts of lubricant;
[0041] Wherein, the compatibilizer is polypropylene grafted styrene grafted maleic anhydride PP-PS-MAH, wherein, the maleic anhydride graft rate is 0.8%;
[0042] In the preparation process of polypropylene-grafted styrene-grafted maleic anhydride PP-PS-MAH, dicumyl peroxide is dissolved in styrene, then mixed with polypropylene and maleic anhydride, and then melt-extruded The polypropylene-grafted styrene-grafted maleic anhydride PP-PS-MAH was obtained, wherein the weight ratio of polypropylene, styrene, maleic anhydride, and dicumyl peroxide was 94.5:3.2:1.8:0.5.
[0043]The preparation method of the above-mentioned boi...
Embodiment 3
[0045] The weather-resistant agent is replaced with a heat-resistant modifier, and the others are the same as in Example 2.
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