含烷氧基硅烷水性聚氨酯自交联乳液的粒度研究  

Study on particle size of self cross-linking aqueous polyurethane dispersion

作　　者：陈建兵[1] 刘斌[2] 王武生[2] 

机构地区：[1]安徽池州学院化学与食品科学系,安徽池州247000 [2]安徽大学水基高分子研究中心,安徽合肥230039

出　　处：《应用化工》2009年第1期16-18,22,共4页Applied Chemical Industry

基　　金：安徽省教育厅自然基金项目(KJ2008B177)

摘　　要：合成了3种自交联的水性聚氨酯,研究了其乳液粒度的变化情况。结果表明,不同的pH对同种乳液的粒径大小有一定的影响;不同的水性聚氨酯乳液粒度在相同pH下,也随水解基团的水解能力大小而变化。并提出在实际使用中如要保证乳液的稳定性,应将中和度控制在中性或微碱性条件,交联基团也依实际用途选择。Three self cross-linking aqueous polyurethane dispersion were synthesized, and its size were studied in the text. Results indicated that the different pH and size of hydrolyzafion group influence the particle size of self cross-linking aqueous polyurethane dispersions. Meanwhile, we advised that the method of making the stability of dispersions is manipulating neutralization under the alkalescent or neutral conditions, and the cross-linking groups are choosed according to practical use.

关 键 词：水性聚氨酯 自交联 粒度 

分 类 号：O631.4[理学—高分子化学]