特种酚醛树脂基烧蚀复合材料的研究  

STUDY ON SPECIAL PHENOLIC RESIN MATRIX ABLATIVE COMPOSITES

作　　者：李锦文[1] 齐风杰[1] 魏化震[1] 李增翼 

机构地区：[1]中国兵器工业集团第五三研究所,济南250031

出　　处：《工程塑料应用》2007年第8期21-24,共4页Engineering Plastics Application

摘　　要：对T-700碳纤维(T-700CF)、特种玻璃纤维(HSGF)、S-2高强玻璃纤维(S-2GF)、连续玄武岩纤维(CBF)的基本力学性能和热性能进行了研究和对比,同时对T-700CF、HSGF、S-2GF、CBF增强特种酚醛树脂1(PR1)复合材料的力学性能和烧蚀性能进行了对比,探讨了PR1/CBF的烧蚀机理。结果表明,PR1/T-700CF的弯曲性能和烧蚀性能最佳;PR1/CBF次之,能够取代PR1/S-2GF和PR1/HSGF;PR1/CBF的氧-乙炔烧蚀过程中主要存在着材料吸热、基体材料与气流的热化学反应、热辐射效应、增强材料的熔化和升华、高速粒子和气流冲刷、机械剥离等烧蚀机理。The mechanical properties and thermal properties of T-700 carbon fiber（T-700CF）, high- silica glass fiber （HSGF） , S - 2 glass fiber（ S - 2GF） , continuous basalt fiber（CBF） are investigated and compared, furthermore the mechanical properties and ablative properties of special phenolic resin （ PR1 ） composites reinforced by these fibers are studied. The mechanisms of PR1/CBF are analyzed. The results show that the flexural and ablative properties of PR1/T -700CF composite are best; PR1/CBF composite takes the second place and it can take the place of PR1/S -2GF and PR1/HSGF. The ablative mechanisms of PR1/CBF composite in the oxygen - acetylene ablative course are as follows ： decalescence of composite, thermochemistry reaction between matrix and airflow, heat radiation effect, meltage and sublimation of reinforcement additive, scouring of high speed particles and airflow, peeling off of stress .

关 键 词：酚醛树脂 纤维 弯曲性能 烧蚀性能 烧蚀机理 

分 类 号：TQ424.19[化学工程]