Composition of glass fiber reinforced flame-retardant engineering plastic and preparation method thereof
AssigneeMitac Precision Technology (Shunde) Ltd.
InventorYang Wang
Life of this patent
Estimating the term…
Abstract
A composition of a glass fiber reinforced engineering plastic and a preparation method thereof are provided. The method includes: except for glass fiber, from 30% to 70% by weight of a polyamide6, from 8% to 30% by weight of an acrylonitrile-butadiene-styrene copolymer, from 3% to 6% by weight of a compatilizer, from 12% to 16% by weight of a flame retardant, from 0.3% to 0.5% by weight of an antioxidant, and from 0.3% to 0.8% by weight of a lubricant are added into a high-speed mixer, and then mixed for 2-5 min. The blend composition is fed into a twin screw extruder, and from 18% to 35% by weight of a glass fiber are added into the twin screw extruder at the second half stage, and ground together to be granulated and molded.
Claims11
A composition of a glass fiber reinforced flame-retardant engineering plastic, comprising:
- from 30% to 70% by weight of a polyamide6;
- from 8% to 30% by weight of an acrylonitrile-butadiene-styrene copolymer;
- from 3% to 6% by weight of a compatilizer;
- from 12% to 16% by weight of a flame retardant;
- from 18% to 35% by weight of a glass fiber;
- from 0.3% to 0.5% by weight of an antioxidant;
- and
- from 0.3% to 0.8% by weight of a lubricant.
A method for preparing a glass fiber reinforced flame-retardant engineering plastic, comprising:
- adding from 30% to 70% by weight of a polyamide6, from 8% to 30% by weight of an acrylonitrile-butadiene-styrene copolymer, from 3% to 6% by weight of a compatilizer, from 12% to 16% by weight of a flame retardant, from 0.3% to 0.5% by weight of an antioxidant, and from 0.3% to 0.8% by weight of a lubricant into a high-speed mixer, and mixing for 2-5 min;
- feeding the blend composition into a twin screw extruder, and adding from 18% to 35% by weight of a glass fiber into the twin screw extruder at the second half stage, and grinding to granulate and mold, wherein a process temperature is from 180° C. to 245° C., and a screw rotating speed is from 240 rpm to 560 rpm.
Dependencies are inferred from the claim text.