| 摘要 |
PROBLEM TO BE SOLVED: To provide a component part of a cooling system for a motor vehicle constituted of a polyamide 6, 10 composition having excellent productivity, calcium chloride resistance, hydrolysis resistance, toughness and high temperature creep resistance. SOLUTION: A tank main body 125 constituting a radiator header tank 120 is formed from a polyamide composition comprising polyamide 6 and 10, glass fiber, copper and a nucleating agent. At this time, the polyamide composition comprises (a) the polyamide 6 and 10 by 48.9-79.988 wt.%, (b) the glass fiber by 20-50 wt.%, (c) the copper by 0.002-0.1 wt.% and (d) the nucleating agent by 0.01-1.5 wt.%, based on the total amount of the polyamide 6 and 10, the glass fiber, the copper and the nucleating agent, and has a measuring result of half-crystallization time of 5 minutes or less. One having a relative viscosity measured in 98% sulfuric acid of 2.3-2.9, is used as the polyamide 6 and 10. COPYRIGHT: (C)2009,JPO&INPIT
|
