Urethane elastomer combined material for automobile foot pad and preparation thereof
A technology of polyurethane elastomer and automobile, which is applied in the special position of the vehicle, vehicle parts, transportation and packaging, etc., and can solve the problems of high mold requirements, long production cycle, and single appearance
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Embodiment 1
[0027] Prepare 207 grams of component A material, weighing respectively: 90 grams of polyether polyol (MN3050), 17 grams of expansion agent (ethylene glycol), 75 grams of filler (400 mesh talcum powder), plasticizer (phthalate Dioctyl formate) 20 grams, flame retardant (TCPP) 1 gram, catalyst (zinc naphthenate) 0.5 grams, antioxidant 2,6-di-tert-butyl p-cresol: 2.5 grams, color paste (carbon black) 1 gram, first put the weighed polyether polyol into the beaker and stir, then add the weighed crosslinking agent, filler, plasticizer, flame retardant, anti-aging agent, catalyst, color paste (wherein the catalyst , The color paste can be added separately in proportion to the production), the temperature is controlled at 70°C-90°C, and the vacuum (-0.096Mpa) is dehydrated until the moisture content is qualified (≤0.05%).
[0028] Prepare 165 grams of component B material, add 100 grams of polyether polyol DL-4000 (2 functionality, molecular weight 4000) into a three-necked bottle at...
Embodiment 2
[0031] Prepare 215 grams of component A material, weigh respectively: 100 grams of polyether polyol (330N), 15 grams of linking agent (1,4-butanediol), 85 grams of filler (325 mesh light calcium carbonate), add Plasticizer (dioctyl phthalate) 10 grams, flame retardant (TCPP) 1 gram, catalyst (zinc naphthenate) 0.5 grams, anti-aging agent (2,6-di-tert-butyl p-cresol) 2.5 grams , 1 gram of color paste (carbon black), first put the weighed polyether polyol into the beaker and stir, then add the weighed crosslinking agent, filler, plasticizer, flame retardant, antioxidant ( 2,6-di-tert-butyl-p-cresol), catalyst, color paste (the catalyst and color paste can be added separately in proportion to production), vacuum dehydration at 70-90 degrees, and the water content is qualified (≤0.05%).
[0032] Prepare 165 grams of component B material, add 100 grams of polyether polyol DL-3000 (2 functionality, molecular weight 3000) into a three-necked bottle at room temperature, stir at 80°C-1...
Embodiment 3
[0035] Prepare 310 grams of component A material, weighing respectively: polyether polyol (MN-3050) 80 grams, crosslinking agent (propylene glycol) 20 grams, filler (400 mesh clay) 185 grams, plasticizer (chlorinated paraffin) 20 grams, 1 gram of flame retardant (TCEP), 0.5 grams of catalyst (zinc naphthenate), 2,6-di-tert-butyl-p-cresol: 2.5 grams of anti-aging agent, 1 gram of color paste (iron oxide red), will First put the weighed polyether polyol into the beaker and stir, then add the weighed crosslinking agent, filler, plasticizer, flame retardant, auxiliary agent, catalyst, color paste (wherein the catalyst, color paste can be It is added separately in proportion during production), vacuum dehydrated at 70-90 degrees, and the moisture is qualified (≤0.05%).
[0036] Prepare 170 grams of component B material, add 100 grams of polyether polyol (2 functionality, molecular weight 4000) into a three-necked bottle at room temperature, stir at 80°C-100°C, vacuum dehydrate and ...
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