| 摘要 |
PURPOSE: A polyamide resin composition is provided to improve the flexibility and the compatibility of a polyamide resin with a rubber, thereby obtaining the polyamide resin composition capable of being applied to the automobile fuel tube system. CONSTITUTION: The polyamide resin composition comprises 50-95 wt% of a polyamide resin; 1-45 wt% of an impact reinforcement selected from the group consisting of an ethylene-propylene monomer, an ethylene-propylene-diene monomer, an ethylene-propylene rubber, a maleic anhydride-modified ethylene-propylene monomer, a maleic anhydride-modified ethylene-propylene-diene monomer, and a maleic anhydride-modified ethylene-propylene rubber; 0.1-20 wt% of a plasticizer selected from the group consisting of a lactam-based plasticizer, a sulfonamide-based plasticizer, a trimellitate plasticizer, a phthalate plasticizer, an adipate plasticizer, a phosphorus-based plasticizer and a glycolate plasticizer; 0.01-5 wt% of a thickener selected from the group consisting of styrene maleic anhydride, a modified polyolefin or its derivative and an epoxy resin; and 0.5-10 wt% of a core-shell-type rubber. Preferably the core-shell-type rubber comprises at least one a rigid part and at least one flexible part. |
