多元改性酚醛树脂及应用研究  

Study on Multicomponent Modified Phenolic Resin and Its Applications

作　　者：刘云涛[1,2] 熊毕华[1,3] 雷绍民[1] 汪溢汀 

机构地区：[1]武汉理工大学资源与环境工程学院,武汉430070 [2]中蓝连海设计研究院,连云港222004 [3]中南建筑设计院股份有限公司,武汉430071 [4]黄石鑫溢矿产有限公司,黄石435100

出　　处：《化学通报》2014年第10期1009-1012,共4页Chemistry

基　　金：国家发改委;国家工信部中小企业技改投资计划(急发改投资〔2010〕2252);湖北黄石科技局项目(2010A1011;2011A086)资助

摘　　要：采用多元改性酚醛树脂制备了汽车摩擦片。通过热分析和摩擦试验,分别研究了多元无机接枝改性对酚醛树脂及其摩擦性能的影响和机理。结果表明,改性前后的树脂由于分子结构发生改变导致热学性质和功能产生变化,热分解温度由596.3℃提高到727.0℃,525℃时失重率由40.12%下降到17.50%,体现出多元改性树脂优异的耐热性和抗衰退性。对恢复率、平均摩擦系数和平均衰退摩擦系数的综合评价表明,多元接枝改性增强了树脂的韧性和热稳定性能,是一种低碳节能新技术。A kind of automobile friction plate was manufactured using multicomponent modified phenolic resin. The effects and mechanism of muhieomponent modification on the resin and its friction performance were studied with thermal analysis and friction wear experiments. The resuhs showed that the application of multicomponent filling leads to the changes of resin＇s molecular structures so that the thermal properties and functions of modified resin to be changed. The decomposition temperature of the resin increased from 596. 3℃ to 727.0℃ and rate of weightlessness decreased from 40. 12% to 17.50% at 525℃ after modification. These results indicated that the modified resin possess good resistance of high temperature and recession. Meanwhile, the results of the comprehensive evaluation of the rate of recovery, average friction coefficient and average recession friction coefficients of the modified resin indicated that the toughness and thermostability of the modified resin had been enhanced. So the grafting modification of phenolic resin is a low-carbon and energy-saving technology.

关 键 词：多元改性树脂 摩擦材料 热学性能 低碳节能 

分 类 号：TQ323.1[化学工程—合成树脂塑料工业]