【摘要】 以甲基丙烯酸、苯乙烯、丙烯酸羟乙酯和丙烯酸-2-乙基己酯为主要原料,通过溶液共聚法合成了用于丙烯酸酯水性涂料的高分子表面活性剂。使用FT-IR对合成产物的结构进行了表征,测试了共聚物的表面张力、临界胶束浓度(CMC)、表观黏度,初步探讨了甲基丙烯酸用量对产物表面活性的影响。结果表明,共聚物的表观黏度(异丙醇溶剂,浓度85%)为100~530mPa.s,具有较低的临界胶束浓度(CMC)(4~9g/L),最低表面张力降至31.5mN/m(25℃)。以此产物为乳化剂,皆能制得体系稳定的丙烯酸酯乳液,其乳胶粒粒径分布均匀。更多还原

【Abstract】 A new polymeric surfactant using for acrylic acid waterborne coatings was prepared from the methyl acrylic acid,styrene,hydroxyethyl acrylate and 2-ethylhexyl acrylate.Structure of copolymer was signified by using FT-IR.Its surface tension,critical glue bunches of density(CMC),apparent viscosity,and the effects of using methyl acrylic acid on process were measured.The results showed that,copolymer of solution were at the range of 100~630mPa·s,and CMC appeared lower(4～9g/L).The minimum surface tension reached 31.5mN/m(25℃).更多还原