加成固化型高残炭芳炔基酚醛树脂作为复合材料基体的评价  

Evaluation of Addition-Curable Aryl Ethyne-Functional Phenolic Resin with High Char-Yielding Property as the Matrix of Composites

作　　者：罗振华[1] 赵绪泽[1] 赵彤[1] 匡松连[2] 李学梅[2] 华小玲[2] 

机构地区：[1]中国科学院化学研究所,北京100080 [2]航天材料及工艺研究所,北京100076

出　　处：《高分子材料科学与工程》2011年第10期85-88,共4页Polymer Materials Science & Engineering

摘　　要：研究了芳炔基酚醛树脂(AEP)作为复合材料基体的适用性。溶解性和流变性能测试表明,AEP树脂工艺性良好,适合于模压等多种成型工艺。采用差示扫描量热分析仪(DSC)和红外光谱仪(IR)研究了树脂的固化行为,确定了固化制度。热重分析仪(TGA)的结果表明,与传统酚醛树脂相比,AEP树脂耐热性和炭炭性能明显提高,5%失重温度为421℃,氮气氛围900℃的残重值约为79%。石英布/AEP树脂复合材料的力学性能测试结果表明,其室温和高温力学性能明显优于聚芳基乙炔树脂(PAA)复合材料。The suitability of aryl ethyne-functional phenolic resin（AEP） as matrix of composites was evaluated.The results of solubility and rheology experiment show that AEP possesses good processing capability.The cure characterization was done with differential scanning calorimetry（DSC） and Fourier transform infrared spectrum（FT-IR）,and the cure schedule was determined.Cured AEP resin shows significantly improved thermal properties,in relative to novolac-type phenolic resin.The onset temperature of storage modulus is 350 ℃,5% mass loss temperature is 421 ℃,and the char yield at 900 ℃ in nitrogen is 79%.In comparison with polyarylacetylene（PAA）-matrix composites,the composites of AEP resin present much higher mechanical strength both at low and high temperature.

关 键 词：加成固化 工艺性 耐热性 复合材料 力学性能 

分 类 号：TQ323.1[化学工程—合成树脂塑料工业]