摘要
针对普通酚醛树脂(PF)作为耐火材料结合剂使用中存在的问题,研究了以钼酸改性PF的可行性。由苯酚和甲醛先合成羟甲基苯酚,再用钼酸与羟甲基经酯化反应得到一种新型的热固性钼PF。通过正交试验与结果分析,讨论各因素对合成工艺的影响,并确定了最佳的工艺参数,在n(苯酚)∶n(甲醛)∶n(H2MoO4)∶n(NaOH)=1∶1.3∶0.06∶0.15,反应温度为90℃,反应时间为1h的条件下合成的钼PF残碳率可达56.31%,比一般热固性PF的残碳率高出13个百分点。表明它是比较理想的耐火材料用结合剂。
In order to solve the problems with common phenolic resin binder for refractory, the paper has researched phenolic resin modified by molybdic acid.Based on the research results,a new type of thermosetting Mo-phenolic resins has been developed. By means of cross-experiment and result analysis,the effect of some factors on synthesis process has been investigated and the best process parameters determined. The rate of residual carbon of the thermosetting Mo-phenolic resin is 13 percent greater than that of common thermosetting phenolic resins,which suggests that the Mo-phenolic resin a better binder for refractory than common phenolic resins.
出处
《武汉科技大学学报》
CAS
2003年第4期370-373,共4页
Journal of Wuhan University of Science and Technology
关键词
酚醛树脂(PF)
耐火材料
结合剂
钼酸
改性
残碳率
phenolic resin
refractory
binder
molybdic acid
modification
rate of residual carbon
