水性聚脲的合成与性能研究  

Study of Synthesis and Properties of Waterborne Polyurea

作　　者：鲍俊杰[1] 许戈文[1] 刘都宝[1] 张海龙[1] 

机构地区：[1]安徽大学化学化工学院安徽省绿色高分子材料重点实验室,合肥230039

出　　处：《化学建材》2009年第5期13-15,共3页Chemical Materials for Construction

摘　　要：以异佛尔酮二异氰酸酯(IPDI)、聚醚胺和乙二胺基乙磺酸钠(AAS)为主要原料,不需加热,只需30min,合成水性聚脲;研究了IPDI与聚醚胺D2000比值、—NCO与总—NH2比值、乙二胺基乙磺酸钠含量和亲水多异氰酸酯固化剂加入量等因素对水性聚脲性能的影响。涂膜机械强度随IPDI与D2000比值的提高而增大;—NCO与—NH2比值越接近1,乙二胺基乙磺酸钠含量为5%以上乳液越稳定;固化剂加入量越大,涂膜力学性能和耐水性越好,本实验加入3%效果最好。Waterborne polyurea was prepared by IPDI,polyetheramines and the sodium salt of N-(2-aminoethyl) -2-aminoethane sulfonic acid(AAS) as main raw materials only in need of 30 minutes without heating. Factors such as IPDI-to-polyetheramines D2000 ratio,-NCO to total-NH2 ratio,content of AAS and addition of hydrophibic solidifying agent of polyisocyanate affecting performance of waterborne polyurea were studied.Mechanical strength of polyurea’ s fi lm increased with increase of IPDI-to-D2000 ratio,the nearer-NCO...

关 键 词：水性聚脲 聚醚胺 亲水多异氰酸酯交联剂 性能 

分 类 号：TQ630.1[化学工程—精细化工]