合成水溶性酚醛树脂用催化剂的选择研究 推荐 下载阅读CAJ格式全文 下载阅读PDF格式全文 【英文篇名】 Selection of Catalysts Used in the Preparation of Water-Soluble Phenolic Resol Resin 【作者中文名】 杨光; 【作者英文名】 Yang Guang (Dept. of Material Science and Engineering; Beijing University of Aeronautics and Astronautics); 【作者单位】 北京航空航天大学材料科学与工程系 100083北京; 【文献出处】 北京航空航天大学学报, Journal of Beijing University of Aeronautics and Astronautics, 编辑部邮箱 2003年 05期 期刊荣誉:中文核心期刊要目总览 ASPT来源刊 CJFD收录刊 【关键词】 酚醛树脂; 水溶性; 催化剂; 制备; 氢氧化钡; 叔胺; 【英文关键词】 phenolic aldehyde resins; water solubility; catalyst; preparation; barium hydroxide; tertiary amine; 【摘要】 通过理论分析和实验总结 ,研究了不同种类的碱性催化剂对酚醛树脂水溶性的影响 ,{zh1}确定同时使用某种叔胺类化合物和少量氢氧化钡作为合成水溶性酚醛树脂的催化剂 .在适宜的反应条件下 ,制得了游离酚含量和游离甲醛含量均较小的水溶性酚醛树脂 .这种水溶性酚醛树脂可用于电气绝缘等诸方面 . 【英文摘要】 The effect of the kinds of basic catalysts on the preparation of water-soluble phenolic resol resin was investigated. The water-soluble resol was prepared by the reaction between phenol and formaldehyde with molar ratio 1:1.2~1.5 in the presence of catalysts at 80~85℃. The catalysts were made up of a kind of tertiary amine and a small amount of barium hydroxide. Free phenol content and free formaldehyde content in the water-soluble resol were not more than 10% and 1.4% respectively. This water-soluble resol... 【DOI】 cnki:ISSN:1001-5965.0.2003-05-019 |