贵州坡缕石矿的分离提纯及其改性PF的耐热性  

Separation and purification of Palygorskite mineral from Guizhou and the heat-resistance of modified PF

作　　者：王佳佳[1] 王满力[1] 周元康[2] 

机构地区：[1]贵州大学化学工程学院,贵州贵阳550003 [2]贵州大学机械与自动化工程学院,贵州贵阳550003

出　　处：《贵州化工》2008年第6期5-8,共4页Guizhou Chemical Industry

基　　金：国家自然科学基金项目(批准号50563001)

摘　　要：采用正交实验法分离提纯贵州坡缕石矿,在最佳实验条件下,坡缕石纯度可达88.03%。对坡缕石纳米化并表面处理,制备坡缕石改性PF。进行热分析测试,结果表明坡缕石改性PF的初始热分解温度为400℃,当温度≥700℃时,残碳率≥55%,耐热性显著优于普通的酚醛树脂。This paper introduce separation and purification of Palygorskite mineral from Guizhou by the orthogonal experimental method, Under the optimum conditions the Palygorskite purity can reach 88.03%. Nano - palygorskite complex phenolics material was prepared by Surface Treatment of palygorskite mineral nano - particles. The thermal analysis show that the initial decomposition temperature of nano - Palygorskite/PF was above 400℃, remainder mass was above 55% at 700℃, and it can greatly improve the heat resistance property of phenolic resins.

关 键 词：坡缕石 酚醛树脂 提纯 热分析 

分 类 号：TQ028.54[化学工程]