一、前言 高性能的热塑性复合材料的应用领域是极其广泛的。但是,象许多新材料一样,它们的设计数据资料一时还弄不全,因此应用设计不得不保守一点,它们的性能潜力也就得不到充分的发挥和利用。 评价这种材料的高温性能尤其困难,因为几乎没有什么试验数据或使用数据的资料可供参考。为此,美国“LNP工程塑料公司”提出了一个试验计划,以确定玻璃纤维增强的或碳纤维增强的耐高温热塑性复合材料的性能。试验以PES(聚醚砜)、PEI(聚醚酰亚胺)、HTA(一种类似于聚醚砜的新型耐高温非结晶态树脂,由英国化学工业公司出品)、PPS I. INTRODUCTION The field of application of high-performance thermoplastic composites is extremely wide. However, like many new materials, their design data have not been fully available for some time. Therefore, application design has to be conservative and their performance potential can not be fully utilized and utilized. Evaluating the high-temperature performance of this material is particularly difficult because there is little data available for testing or using the data for reference. To this end, the United States “LNP Engineering Plastics” proposed a pilot program to determine the performance of glass fiber reinforced or carbon fiber reinforced high temperature thermoplastic composites. The tests were performed with PES (polyethersulfone), PEI (polyetherimide), HTA (a new high temperature resistant non-crystalline resin similar to polyethersulfone, manufactured by British Chemical Industry Corp.), PPS