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以环已烷为分散介质、Span-60为分散剂,采用反相悬浮聚合法,通过阳离子单体丙烯酰氧乙基三甲基氯化铵(DAC)的交联聚合(CP),制备了粒径200～300μm的凝胶微球CPDAC,考察了主要条件对微球成球性能及粒径的影响,对微球进行了表征,研究了CPDAC对4种阴离子物质的吸附特性.结果表明,制备CPDAC需严格控制成球条件.分散相水相采用滴加方式,适宜的分散剂为Span-60,随其用量增加微球粒径变小;油水相体积比小于2:1不能成球,随体积比增大,微球粒径减小;搅拌速率小于250 r/min不能成球,微球粒径随搅拌速率加快而变小.CPDAC凭借强离子交换作用及静电相互作用对CrO42-,MoO42-和酸性染料活性艳红、活性黄4种阴离子物质都有很强的吸附作用,吸附容量分别为213,275,1850和1690 mg/g,吸附容量随温度升高而降低.
Span-60 was used as dispersant in cyclohexane as dispersant, and CP was prepared by reversed-phase suspension polymerization through the cross-linking polymerization of cationic monomer acryloyloxyethyltrimethylammonium chloride (DAC) The effects of the main conditions on the properties and particle size of the microspheres were investigated. The microspheres were characterized and the adsorption properties of CPDAC on the four anionic species were investigated. The results showed that, Preparation of CPDAC need to be strictly controlled into the ball conditions.Dispersed phase aqueous phase was added dropwise, the appropriate dispersant was Span-60, with the increase in the amount of microspheres particle size becomes smaller; oil-water phase volume ratio of less than 2: 1 can not be a ball, With the increase of volume ratio, the particle size of the microspheres decreased; the stirring rate was less than 250 r / min, the diameter of the microspheres became smaller with the agitation rate increasing.CCPDAC, with strong ion exchange and electrostatic interaction, MoO42- and acid dyes reactive brilliant red, reactive yellow 4 kinds of anionic substances have a strong adsorption, adsorption capacity were 213,275,1850 and 1690 mg / g, the adsorption capacity decreases with increasing temperature.