Foam composite material and forming method thereof
A technology for composite materials and foamed materials, applied in the field of foamed materials, can solve the problems of reduced material fluidity, reduced melt strength, insufficient cross-linking degree of materials, etc., and achieves the effects of excellent solvent resistance and good thermal insulation.
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Embodiment 1
[0032] The foaming formula is:
[0033] PP: 18.3%, LDPE: 45%, mica: 5%, hollow glass beads: 5%, EPDM: 5%, foam glass powder: 7%, DCP: 3%, divinylbenzene: 2%, AC hair Foaming agent: 3%, zinc oxide 5%, stearic acid 1%, antioxidant 1010 0.5%, silane coupling agent: 0.1%, titanate coupling agent: 0.1%.
[0034] The grade or model of the material is:
[0035] PP (brand T30S), Dalian Petrochemical. LDPE (grade 2102TN26), Qilu Petrochemical. EPDM grade 3720P, American Dow Company. Dicumyl peroxide (DCP), technical grade. AC foaming agent, model Dn8, Shanghai Wenhua Chemical Pigment Co., Ltd. Zinc oxide (ZnO), analytically pure, Sinopharm Chemical Reagent Co., Ltd. Antioxidant 1010, industrial grade. Stearic acid, analytically pure, Sinopharm Chemical Reagent Co., Ltd. Mica is 1200 mesh muscovite. Hollow glass microspheres have a particle size of 50 microns and a density of 0.4g / cm 3 . Foam glass powder, Hebei Zhongtai Tiancheng Energy Saving Technology Co., Ltd. Divinylbe...
Embodiment 2
[0049] The foam formula is:
[0050] PP: 11.8%, LDPE: 56.4%, mica: 3%, hollow glass microspheres: 3%, EPDM: 5%, foam glass powder: 6%, DCP: 2%, divinylbenzene: 1%, AC hair Foam agent: 5%, zinc oxide 4%, stearic acid 2%, antioxidant 1010 0.6%, silane coupling agent: 0.1%, titanate coupling agent: 0.1%.
[0051] Among them, PP (brand T30S), Dalian Petrochemical, hollow glass microspheres: particle size 60μm, density 0.5g / cm 3 , other with embodiment 1.
[0052] The preparation of AC foam masterbatch, preparation of PP / mica filler masterbatch, preparation of LDPE / hollow glass microsphere filler masterbatch, and preparation of blended materials are the same as in Example 1.
[0053] Preparation of foam material: blending material, foam glass powder, foam masterbatch (LDPE / AC foaming agent), cross-linking agent dicumyl peroxide (DCP), auxiliary cross-linking agent divinylbenzene, oxidation Zinc, stearic acid, and antioxidant 1010 are mixed in a high-mixer according to the ratio,...
Embodiment 3
[0059] The foam formula is:
[0060] PP: 20%, LDPE: 36.4%, mica: 7%, hollow glass beads: 7%, EPDM: 8%, foam glass powder: 8%, DCP: 3%, divinylbenzene: 2%, AC hair Foaming agent: 3%, zinc oxide 4%, stearic acid 1%, antioxidant 1010 0.4%, silane coupling agent: 0.1%, titanate coupling agent: 0.1%.
[0061] Among them, PP (brand T30S), Dalian Petrochemical. Hollow glass microspheres have a particle size of 60 microns and a density of 0.5g / cm 3 , other with embodiment 1.
[0062] The preparation of AC foam masterbatch, preparation of PP / mica filler masterbatch, preparation of LDPE / hollow glass microsphere filler masterbatch, and preparation of blended materials are the same as in Example 1.
[0063] Preparation of foam material: blending material, foam glass powder, foam masterbatch (LDPE / AC foaming agent), cross-linking agent dicumyl peroxide (DCP), auxiliary cross-linking agent divinylbenzene, oxidation Zinc, stearic acid, and antioxidant 1010 are mixed in an internal mixer ...
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