含有磺酸基团的水性硝化纤维乳液的制备  

Preparation of waterborne nitrocellulose dispersion with sulfonic groups

作　　者：杨晶晶[1] 苏秀霞[1] 

机构地区：[1]陕西科技大学教育部轻化工助剂化学与技术重点实验室,陕西西安710021

出　　处：《应用化工》2017年第6期1093-1096,1102,共5页Applied Chemical Industry

基　　金：陕西省教育厅2012年产业化培育项目(2012JC04)

摘　　要：采用1,5-二氨基-3-戊磺酸钠为亲水扩链剂,以异佛尔酮二异氰酸酯(IPDI)、硝化纤维素(NC)为主要原料,通过自乳化法制备磺酸盐型水性硝化纤维(SWNC)乳液。探索了IPDI与1,5-二氨基-3-戊磺酸钠摩尔比、硝化纤维用量对乳液粒径及涂膜性能的影响,利用FTIR、TEM、TGA和XPS等测试手段对聚合物结构与性能进行表征。结果表明,1,5-二氨基-3-戊磺酸钠已接枝到硝化纤维上,并未破坏硝化纤维分子原有结构,SWNC乳液平均粒径较小,且乳液的贮存稳定性及水分散性较好,SWNC涂膜的热稳定性与硝化纤维相比有所提高。The sulfonate waterborne nitrocellulose emulsion （SWNC） was prepared via self-emulsification using 1,5-two aminos-3-pentane sulfonic sodium as hydrophilic chain extender and isophorone diisocyanate （IPDI）, nitrocellulose （NC） as the main raw material.At the same time,influences of the molar ratio of IPDI and 1,5-two aminos-3-pentane sulfonic sodium,nitrocellulose content on the particle size and film performance were investigated.The structure and properties of polymers were characterized by FTIR,TEM,TGA and XPS measurements.The results show that 1,5-two aminos-3-pentane sulfonic sodium has been grafted onto nitrocellulose and the original structure of nitrocellulose molecules do not destroy,the average particle diameter of SWNC emulsion is smaller,and the storage stability and water dispersion of SWNC emulsion is better,the heat resistance of the SWNC coating is improved compared with nitrocellulose.

关 键 词：水性硝化纤维 磺酸盐 自乳化 

分 类 号：TQ630.4[化学工程—精细化工]