| 摘要 |
PROBLEM TO BE SOLVED: To provide polyamide resin composition for microfoaming injection molding, capable of lightening of products, improving surface properties, improved in dimensional stability, heat resistance, fluidity and rigidity, applicable to car components and suitable for car components. SOLUTION: The composition comprises 50-75 wt.% nylon 66 resin alone or alloyed polyamide resin of nylon 66 resin with nylon 6 resin, 15-35 wt.% glass fiber, 5-25 wt.% clay, and 0.1-3 wt.% benzosulfonamide-based and/or dicarboxylic acid-based plasticizer, so as to be 100 wt.% in total. The polyamide resin composition preferably has≥62,000 kg/cm<SP>2</SP>elasticity,≥5.5 kg/cm impact strength and≤120% shrinkage factor ratio of flow direction to orthogonal direction in percentage. The car parts are made by the microfoaming injection molding method using the polyamide resin composition. COPYRIGHT: (C)2005,JPO&NCIPI |
