摘要
以二乙烯三胺、己二酸和环氧氯丙烷为原料,通过缩聚和交联反应合成了具有水溶性的阳离子热固性树脂聚酰胺-环氧氯丙烷树脂(PAE)。在酸胺摩尔比1.05∶1、加热温度170℃、催化剂用量2.5%、保温时间120min的条件下,得到出水率高、聚合度大、相对分子质量适宜的预聚体PA;在环氧氯丙烷与预聚体PA中的二乙烯三胺单元摩尔比1.5∶1、前期水与PA质量比2∶1、保温温度65℃的条件下,制得的PAE与市售PAE相比,稳定性增强,湿强效果明显提高。
By polycondensation and cross-linking with diethylenetriamine, adipic acid and epichlorohydrin as raw materials, a water-soluble, cationic and thermosetting resins PAE is prepared. (1) Step 1 : with n (AA) : n ( DETA ) = 1.05 : 1, heating temperature of 170℃ ,catalyst amount of 2.5% ,the keeping time of 120 min, the prepared intermediate PA has a low impurity, high water rate and appropriate molecular weight. (2) Step 2: under the conditions of n (ECH) : n (DETA) = 1.5: 1, m(pre-water) : m(PA) = 2:1, and the holding temperature of 65℃, the prepared PAE not only has stronger stabihty, but also has better wet-strength than the other commercial products.
出处
《现代化工》
CAS
CSCD
北大核心
2010年第2期40-43,共4页
Modern Chemical Industry
基金
江西省自然科学基金(2009GZH1592)资助