| 摘要 |
A XYLYLENEDIAMINE-BASED POLYAMIDE RESIN/FIBER COMPOSITE MATERIAL AND MOLDING ARE PROVIDED THAT DO NOT EXHIBIT A DECLINE IN PROPERTIES UNDER HIGH TEMPERATURES AND HIGH HUMIDITIES, AND THAT EXHIBIT A HIGH ELASTIC MODULUS AND PRESENT LITTLE WARPING, AND EXHIBIT BETTER RECYCLE CHARACTERISTICS, A BETTER MOLDABILITY, AND A BETTER PRODUCTIVITY THAN FOR THERMOSETTING RESINS. THE POLYAMIDE RESIN-TYPE COMPOSITE MATERIAL COMPRISES A FIBROUS MATERIAL (B) IMPREGNATED WITH A POLYAMIDE RESIN (A) WHEREIN AT LEAST 50 MOLE% OF DIAMINE STRUCTURAL UNITS DERIVED FROM XYLYLENEDIAMINE, AND HAVING A NUMBER-AVERAGE MOLECULAR WEIGHT (MN) OF 6,000 TO 30,000, AND CONTAINING A COMPONENT OF A MOLECULAR WEIGHT OF NOT MORE THAN 1,000 AT 0.5 TO 5 MASS %. |
