化工进展2018，Vol.37Issue(6)：2316-2322,7.DOI:10.16085/j.issn.1000-6613.2017-1504
酚醛树脂的改性及其浸渍石墨性能
Modification of phenolic resin and its performance in impregnating graphite
摘要
Abstract
In order to solve the problem that the phenolic resin become invalid due to the viscosity increase after impregnation of graphite, the phenolic resin of high viscosity was modified by furfuryl alcohol with ZnCl2as catalyst.By using ineffective,normal and modified phenolic resin respectively as the impregnants,the general medium-density graphite was impregnated and cured for four times under 0.7MPa and 180℃.The viscosity changes of the impregnants were tested and the microstructures, porosity,weight gain,thermogravimetry,compressive strength and the corrosion resistance of the impregnated and cured graphite were analyzed.The results showed that the viscosity of modified phenolic resin was moderate and the high temperature resistance of the impregnated graphite was best when the mass ratio of phenolic resin,furfuryl alcohol and ZnCl2was 100:40:2.What's more,the graphites impregnated only 2 times by the modified phenolic resin performed the best,and the rate of weight increased by 2% compared with that impregnated by the ineffective phenoli cresin,and the compressive strength and alkali resistance were also improved.关键词
改性酚醛树脂/失效酚醛树脂/浸渍石墨Key words
modified phenolic resin/ineffective phenolic resin/impregnated graphite分类
化学化工引用本文复制引用
蒋凤易,田蒙奎,郝立通,邵珠花,杨颖,罗祥丽..酚醛树脂的改性及其浸渍石墨性能[J].化工进展,2018,37(6):2316-2322,7.基金项目
贵州省石墨装备制造及应用科技创新人才团队项目[黔科合人才团队(2015)4004号]、贵州省优秀青年科技人才计划[黔科合平台人才(2017)5605]及贵阳国家高新区高层次人才创新创业项目. （2015）
