Environment-friendly sealing sponge for automobile air conditioner and preparation method thereof
An automotive air-conditioning and environmental protection technology, applied in the field of air-conditioning sealing sponge, can solve the problems of unfavorable environmental protection and sustainable development, high stability of polyurethane, no degradability, etc., and achieves small permanent deformation, high tensile strength, and improved Effects of strength and elasticity
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Embodiment 1
[0017] The environmental protection sealing sponge for automobile air conditioner is made of the following raw materials in parts by weight: 90 parts of Keltan Eco 6950, 12 parts of polylactic acid fiber, 35 parts of carbon black, 1 part of stearic acid, 1 part of zinc oxide, 35 parts of kaolin, heavy 30 parts of calcium carbonate, 2 parts of cashew nut shell liquid, 1.2 parts of foaming agent AC, 1.6 parts of foaming agent OBSH, 1.5 parts of accelerator PZ, 1.2 parts of accelerator NS, 3 parts of PEG4000, 1.5 parts of silane coupling agent, 2 parts of sulfur parts, DCP 1.5 parts, zinc stearate 1.5 parts.
[0018] The preparation method of environmental protection sealing sponge for automobile air conditioner, the steps are as follows:
[0019] 1) Put the bio-based EPDM raw rubber into the mixer for 8 minutes, add carbon black, stearic acid, zinc oxide, kaolin, heavy calcium carbonate, cashew nut shell oil, silane coupling agent, stabilizer, PEG4000, Mix for 5 minutes, then a...
Embodiment 2
[0023] The environmental protection sealing sponge for automobile air conditioner is made of the following raw materials in parts by weight: 92 parts of bio-based EPDM, 14 parts of polylactic acid fiber, 32 parts of carbon black, 1.5 parts of stearic acid, 1.5 parts of zinc oxide, 37 parts of kaolin, heavy 28 parts of calcium carbonate, 2.5 parts of cashew nut shell liquid, 1.5 parts of foaming agent AC, 1.5 parts of foaming agent OBSH, 1.5 parts of accelerator PZ, 1.5 parts of accelerator NS, 3 parts of PEG4000, 1 part of silane coupling agent, 2.5 parts of sulfur 1 part, 1 part of DCP, 1 part of glyceryl distearate.
[0024] The preparation method of environmental protection sealing sponge for automobile air conditioner, the steps are as follows:
[0025] 1) Put the bio-based EPDM raw rubber into the mixer for 10 minutes, add carbon black, stearic acid, zinc oxide, kaolin, heavy calcium carbonate, cashew nut shell oil, silane coupling agent, stabilizer, PEG4000, Mix for 7 m...
Embodiment 3
[0029] Environmentally friendly sealing sponge for automobile air conditioner, made of the following raw materials in parts by weight: 87 parts of Keltan Eco 6950, 11 parts of polylactic acid fiber, 35 parts of carbon black, 1 part of stearic acid, 1 part of zinc oxide, 32 parts of kaolin, heavy 32 parts of calcium carbonate, 3 parts of cashew nut shell liquid, 1.5 parts of foaming agent AC, 1 part of foaming agent OBSH, 1 part of accelerator PZ, 1.5 parts of accelerator NS, 2 parts of PEG4000, 1.5 parts of silane coupling agent, 2 parts of sulfur 1 part, DCP 1 part, calcium stearate 1 part.
[0030] The preparation method of environmental protection sealing sponge for automobile air conditioner, the steps are as follows:
[0031] 1) Put the bio-based EPDM raw rubber into the mixer for 10 minutes, add carbon black, stearic acid, zinc oxide, kaolin, heavy calcium carbonate, cashew nut shell oil, silane coupling agent, stabilizer, PEG4000, Mix for 5 minutes, then add accelerato...
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