摘要
研究了环保型脲醛树脂胶的合成工艺及配方。实验得出:添加1%的聚乙烯醇、反应温度60～65℃、反应时间2.0～2.5h、甲醛与尿素的摩尔比1.3,合成的脲醛树脂胶游离甲醛含量小于0.2%,性能指标满足GB/T14732-93标准要求。
Environment-protecting type urea-formaldehyde resin was synthetized under the following conditions: polyvinyl alcohol 1%, reaction temperature 60～65℃, reaction time 2.0～2.5h, the mloe ratio of formaldehyde to urea 1.3. The free-formaldehyde content in the resin is under 0.2% and all performance indices meet the indices required by National Standard GB/T 14732-93.
出处
《中国胶粘剂》
CAS
2004年第1期7-10,共4页
China Adhesives
关键词
环保型
脲醛树脂胶
合成
配方
聚乙烯醇
甲醛
尿素
environment-protecting type
urea-formaldehyde resin adhesive
low free-formaldehyde
synthetic technology
