摘要
采用氨基磺酸盐(IPDA-SO3Na)为亲水单体,聚醚多胺(D-230)为扩链剂与环氧树脂(E-44)反应制备了磺酸盐型水性环氧分散体。研究了E-44与IPDA-SO3Na反应的反应温度和时间、亲水单体用量、扩链R值分别对分散体粒径和稳定性的影响。结果表明,随着亲水单体含量的增加,分散体平均粒径变小,粒径分布变窄,黏度增加;R值增大,分散体平均粒径增大,粒径分布变宽,黏度降低。由此分散体制备的双组分水性环氧涂料的适用期较长(4h-6h),并具有良好的涂膜性能。
A type of aqueous epoxy dispersion based on sulphonate was prepared using amine sodium sulphonate （IPDA-SO3Na） as a hydrophilic monomer, polyether polyamine（D-230） as a chain extender and epoxy resins （E- 44）. Effects of reaction temperature and time between E-44 and IPDA-SO3Na, IPDA-SO3Na content, R value on the particle size and stability of dispersion were studied. The results show that with increase of hydrophilic monomer content, the average particle size decreases, the particle size distribution narrows and the viscosity increases. The average particle size increases, the particle size distribution becomes broader and the viscosity decreases when R value increases. The two-component coating made of prepared aqueous epoxy dispersion and aqueous epoxy curing has a long pot-life（4h-6h）as well as good film properties.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2013年第5期141-145,共5页
Polymer Materials Science & Engineering
基金
广东省重大科技专项计划项目(2011A080802002
2012A080105011)
关键词
氨基磺酸盐
环氧树脂
水性
分散体
amine sodium sulphonate
epoxy resin
aqueous
dispersion
