高残炭热固性酚醛树脂的合成及表征  

Synthesis and Characterization of Phenolic Resin with High Char Yield

作　　者：李忠[1,2] 史铁钧[1] 郭立颖[1] 

机构地区：[1]合肥工业大学化工学院,安徽合肥230009 [2]安徽理工大学化学工程系,安徽淮南232001

出　　处：《高分子材料科学与工程》2009年第1期8-11,共4页Polymer Materials Science & Engineering

基　　金：国家自然科学基金资助项目(50773017)

摘　　要：以萘酚部分替代苯酚合成了高残炭热固性酚醛树脂。研究了萘酚用量、催化剂用量、反应温度和时间对残炭率的影响,确定了合成工艺条件。用IR和TGA对产品的化学结构与热性能进行了分析测定,结果表明,树脂分子链中不稳定的醚键含量低于普通酚醛树脂,产品的分解温度为460℃,残炭率可达61.3%,适用于碳/碳复合材料和耐烧蚀材料的树脂基体。The thermoset phenolic resin with high char yield has been synthesized with Naphthol, phenol and formaldehyde. The influences of amount of naphthol, amount of catalyst, reaction temperature and reaction time on char yield were studied, and the optimum technology was determined. Chemical structure and thermal properties of resin were characterized by IR and TGA. The results show that modified PF has lower content of instable ether bonds than popular phenolic resin. The decomposition temperature of the modified PF is 460℃ and the char yield is 61.3 %. Modified PF is suitable for use as the typical precursors to fabricate carbon/carbon composite materials and ablation materials.

关 键 词：改性酚醛树脂 萘酚 高残炭 合成 

分 类 号：TQ323.1[化学工程—合成树脂塑料工业]