新型磺酸盐聚氨酯表面活性剂的制备及性能  

Preparation and Performances of Novel Sulfonate Polyurethane Surfactants

作　　者：林东恩[1] 胡守印[1] 张逸伟[1] 

机构地区：[1]华南理工大学化学与化工学院,广东广州510640

出　　处：《华南理工大学学报（自然科学版）》2011年第3期32-36,共5页Journal of South China University of Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(21072063)

摘　　要：以甲苯二异氰酸酯(TDI)、聚醚二醇(PEG1000,PEG2000,PEG6000,PE6200)以及自制的新型磺酸盐二胺扩链剂为原料,采用丙酮法经预聚和扩链合成了4种新型水溶性磺酸盐聚氨酯高分子表面活性剂(PUS),采用FT-IR对产物的结构进行了分析,并对产物的表面张力、临界胶束浓度(CMC)、乳化性能、发泡性能进行了研究.结果表明:以聚乙二醇为底物所得到的表面活性剂的临界胶束浓度约为20 g/L,在此浓度下水溶液表面张力为41.6mN/m;以嵌段聚醚为底物所得到的表面活性剂的临界胶束浓度则小于1g/L,在此浓度下水溶液的表面张力为32mN/m.另外,该类表面活性剂都具有一定的触变性和乳化力,以及较低的发泡性和泡沫稳定性.Four kinds of waterborne macromolecular sulfonate polyurethane surfactants（PUS） were synthesized via the acetone method with prepolymerization and chain extension,with toluene diiosocynate（TDI）,polyether glycol（PEG1000,PEG2000,PEG6000,PE6200） and self-prepared sulfonate diamine chain extender as raw materials.Then,the structures of the products were characterized by means of FT-IR,and the surface tension,critical micelle concentration（CMC）,emulsifying property and foaming property were investigated.The results show that the product with PEG as the substrate is of a CMC of about 20g/L,and the corresponding surface tension reaches 41.6mN/m,while that with PE6200 as the substrate is of a CMC of less than 1g/L and a surface tension of 32mN/m.

关 键 词：聚氨酯 磺酸盐 表面活性剂 临界胶束浓度 乳化性 发泡性 

分 类 号：TQ630.1[化学工程—精细化工]