文献类型：期刊文献

中文题名：改性酚醛树脂基层压式摩擦制动材料制备与表征

英文题名：Research of Heat-resistance Modifi cation of Phenolic Resin

作者：刘渊 罗军 冯晓琴

第一作者：刘渊

机构：[1]贵阳学院材料磨损与腐蚀防护贵州省教育厅特色重点工程中心;[2]贵州理工学院化学工程学院

第一机构：贵阳学院材料磨损与腐蚀防护贵州省教育厅特色重点工程中心,贵州贵阳550005

年份：2014

卷号：37

期号：4

起止页码：81-83

中文期刊名：非金属矿

外文期刊名：Non-Metallic Mines

收录：CSTPCD;;北大核心:【北大核心2011】；CSCD:【CSCD2013_2014】；

基金：贵州省教育厅产学研基地项目;贵州省科技厅工业攻关项目(黔科合GY字[2012]3038);贵州省教育厅工程中心项目(黔教合KY字[2012]023);贵阳学院校级产学研基地培育项目(201301)

语种：中文

中文关键词：改性酚醛树脂;腰果壳酚;耐热性;摩擦制动材料

外文关键词：modified phenolic resin;cashew nut shell liquid（CNSL）;thermal stability;friction brake materials

摘要：酚醛树脂作为重要的摩擦材料胶粘剂,其热稳定性对摩擦制动材料使用的安全性至关重要。为改善传统酚醛树脂因耐热性不足而容易导致层压式摩擦制动材料摩擦因数低且不稳定的缺点,本实验以腰果壳酚、苯酚、甲醛为原料制备了改性酚醛树脂,并以此改性酚醛树脂为基体制备了层压式摩擦制动材料,并系统研究了腰果壳酚用量对酚醛树脂耐热性以及对层压式摩擦制动材料摩擦因数的影响。测试结果表明,当甲醛(37%水溶液)用量为97.30 g(1.2 mol),苯酚用量为56.45 g(0.6 mol),腰果壳油用量为122.00 g(0.4 mol),氨水用量为30.00 g时制备的改性酚醛树脂的耐热性最佳,峰值热失重温度为462.5℃。此外,以其为基体制备的层压式摩擦制动材料摩擦因数最大值达0.42,且稳定无衰减,符合美国SAE-J661标准。
As one of such critical adhesives, phenolic resin is widely used in friction braking areas. Naturally, its thermal stability affects the final products dramatically. Unfortunately, the friction coefficient and braking stability of laminated brake material which uses ordinary phenolic resin as its matrixes is very poor because of the poor heat-resistance of ordinary phenolic resin. To improve above flaws, cashew nut shell liquid （CNSL）, phenol, and formaldehyde were employed to synthesize a modified phenolic resin. Taking this modified phenolic resin as matrix, a new laminated brake material was obtained. Furthermore, the influences of the amount of CNSL on thermal stability of phenolic resin and friction coefficient of laminate brake material were investigated in detail in this paper. The results of tests indicated that the thermal stability of modified phenolic resin was the best when the amount of the formaldehyde （37% water solution） was 97.30 g （1.2 tool）, and the amount of phenol was 56.45 g （0.6 mol）, and the amount of CNSL was 122.00 g （0.4 mol）. The peak temperature of mass loss of above modified phenolic resin was at 462.5 ℃. Furthermore, the properties of laminated friction and brake material which employed above phenolic resin as its matrix were qualified the requirements of SAE-J661. Its max value of friction coefficient was 0.42, and the value was very stable