| 摘要 |
PURPOSE: A polyamide composition obtained by simultaneously mixing a polyamide copolymer with crystalline polyamide 66 resin and adding a thermoplastic rubber elastomer of alpha-olefins grafted with unsaturated carboxylic acid and an acid-substituted propionate copolymer is provided, which can be applied to an outer plate of a wheel cover of an automobile, an outside door and a business machine. CONSTITUTION: The polyamide composition comprises 51 to 83% by weight of polyamide 66 resin, 10 to 30% by weight of a polyamide copolymer, 5 to 15% by weight of a thermoplastic rubber elastomer and 2 to 4% by weight of an acid substituted propionate copolymer. The acid substituted propionate copolymer is represented by the formula 1 and has a number average molecular weight of 300 to 3,000. In formula, R1, R2, R4 and R5 are H or C1-4 alkyl, R3 is C1-2 alkyl, and n is an integer. |
