摘要
采用苯胺做改性剂,通过实验得到了低游离甲醛含量脲醛树脂的合成工艺,其最佳工艺条件为:尿素与甲醛的摩尔比为1∶2.0,苯胺加入量8%,反应时间150min,反应温度90.所得产品中游离甲醛含量<0.5%,胶结强度>10MPa.
: A novel technology for synthesis of urea-formaldehyde resin with low free formaldehyde content was researched using aniline as modifier. The best performance of the resin can be attained at 90℃ ,150min with the mole ratio of urea to formaldehyde 1:2.0 and aniline feed 8%.
出处
《周口师范学院学报》
CAS
2004年第5期63-65,共3页
Journal of Zhoukou Normal University
关键词
脲醛树脂
游离甲醛
改性剂
: urea-formaldehyde resin
formaldehyde
modifier