高韧性PMR聚酰亚胺复合材料树脂基体的研究  

STUDY OF HIGH TOUGHNESS PMR-POLYIMIDE BASED COMPOSITE

作　　者：吕通健[1] 何天白[1] 刘维莲 张向东[1] 李红云 

机构地区：[1]辽宁大学化学系,中国科学院长春应用化学研究所

出　　处：《高分子材料科学与工程》1996年第1期139-143,共5页Polymer Materials Science & Engineering

基　　金：中国科学院高分子物理联合开放实验室科学基金

摘　　要：本工作以ＯＤＰＡ（３，３’，４，４’－二苯醚四酸二甲酯）取代ＰＭＲ－１５中的ＢＴＤＥ（３，３’，４，４’－二苯酮四酸二甲酯）即以ＯＤＰＡ、ＭＤＡ（４，４’－二胺基二苯甲烷）、ＮＥ（降冰片烯酸酐单甲酯）作为复合材料树脂基体（简称ＯＤＰＡ－ＰＭＲ），对纤维存在下的该树脂基体的反应性及其复合材料的制备和性能测试进行了研究，实验结果在明，同ＰＭＲ－１５相比，该树脂基体具有更优的反应性，该树脂基体复合材料具有更优的层间断裂韧性。The 4, 4'-oxydiphthlic anhydride(ODPA) replacing dimethyl ester of benzophenone tetracarboxylic anhydride(BTDE)in PMR-15,was used together with 4,4'-methylene dianiline(MDA) and monomethyl ester of norbornene anhydride(NE)as resin matrices for advanced composite.A series of isothermal and dynamic tests was run,an autocatalyzed mechnism was found to adequately describe the cure kinetics.The extent of reaction at highest(peak) value of reaction rate was independent of temperature.The maximum reaction rate is between 11%￣24% conversion.This resin matrix comparing with PMR-15 has better better reactivity.Unidireactional carbon fiber reinforced the OPDA based polyimide was fabricated. The interlaminar fracture toughness of OPDAPMR composite laminates is better than PMR-15.

关 键 词：复合材料 聚酰亚胺 韧性 聚合 PMR法 

分 类 号：O633.22[理学—高分子化学] TQ327[理学—化学]