PBT environment-friendly and flame-retardant material toughened and reinforced by blending elastomer and micrometer particles
A technology of micron particles and flame retardant materials is applied in the field of elastomer and micron particles blending and toughening to enhance PBT environmental protection flame retardant materials. The effect of rigidity and heat resistance, high notched impact strength and excellent comprehensive performance
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[0021] Example 1:
[0022] A kind of elastomer and micro-particles are blended and toughened to strengthen PBT environment-friendly flame retardant material. , 10% of micron calcium carbonate, 0.3% of stearic acid, 0.6% of polysiloxane, 0.8% of the compound of main antioxidant 1076 and auxiliary antioxidant 168, 0.3% of benzotriazole light stabilizer, of which, The average particle size of micron calcium carbonate is between 1 μm and 10 μm.
[0023] Preparation method: (1) Dry PBT at 130 ℃ ~ 140 ℃ for 3 to 5 hours, control the moisture content below 0.03%, and wait for use; (2) After weighing the micron calcium carbonate and stearic acid by weight , add it into an ultrasonic oscillator or a high-speed mixer with a speed of not less than 3000 rpm, stir at a temperature of 80 to 120 °C for 10 to 60 minutes to make it evenly dispersed, and then cool to below 40 °C to obtain a surface-treated Micron calcium carbonate; (3) Weigh the ethylene-octene copolymer elastomer according t...
Example Embodiment
[0024] Example 2:
[0025] A kind of elastomer and micro-particles are blended and toughened to strengthen PBT environment-friendly flame retardant material. Elastomer 15%, Micron Calcium Carbonate 15%, Calcium Stearate 0.4%, Ethylenebis Stearamide 1%, Compound 0.4% of Primary Antioxidant 1076 and Secondary Antioxidant 168, Benzophenone Light Stabilizer 0.2%, wherein the average particle size of micron calcium carbonate is between 1 μm and 10 μm.
[0026] Preparation method: (1) Dry the PBT at 130°C to 140°C for 3 to 5 hours, control the moisture content below 0.03%, and wait for use; (2) Weigh the micron calcium carbonate and calcium stearate by weight. Then, add it into an ultrasonic oscillator or a high-speed mixer with a speed of not less than 3000 rpm, stir at a temperature of 80 to 120 °C for 10 to 60 minutes to make it evenly dispersed, and then cool to below 40 °C to obtain a surface treatment (3) Weigh the acrylonitrile-butadiene-styrene copolymer elastomer accordin...
Example Embodiment
[0027] Example 3:
[0028] An elastomer and micro-particles are blended and toughened to strengthen PBT environment-friendly flame retardant material. 5% of the copolymer of lylic anhydride, 5% of micron diatomaceous earth, 0.1% of silane coupling agent, 1.5% of polysiloxane, 0.4% of the compound of main antioxidant 1076 and auxiliary antioxidant 168, among which, micron The average particle size of diatomaceous earth is between 1 μm and 10 μm.
[0029] Preparation method: (1) Dry the PBT at 130 ℃ ~ 140 ℃ for 3 to 5 hours, control the moisture content below 0.03%, and wait for use; (2) weigh the micron diatomite and silane coupling agent by weight After taking it, add it into an ultrasonic oscillator or a high-speed mixer with a speed of not less than 3000 rpm, stir at a temperature of 80 to 120 °C for 10 to 60 minutes to make it evenly dispersed, and then cool to below 40 °C to obtain a surface (3) Weigh the copolymer of ethylene-octene copolymerized elastomer grafted with ...
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