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用正交试验法考察了甲基丙烯酸和高碳链混合醇直接酯化合成甲基丙烯酸混合醇酯的工艺条件。其酯化反应的工艺条件为:酸醇量比为1.2:1,w(催化剂)为1.5%,w(阻聚剂)为0.5%,反应温度130℃,反应时间4h,空气流速为0.16L/min。用甲基丙烯酸高碳链醇酯为单体,1,4-丁二醇二丙烯酸酯为交联剂,过氧化苯甲酰为引发剂,聚乙烯醇为分散剂,采用分散聚合法制备了具有吸油性能的甲基丙烯酸高碳链混合醇酯共聚树脂,并用均匀设计试验法优化了聚合合成工艺条件:w(交联剂)为1.2956%,w(引发剂)为1.0298%,w(分散剂)为0.2374%,反应温度88℃,该聚合物的吸油倍率最大值为16.0340g柴油/g树脂。
The conditions of direct esterification of mixed methacrylic acid and high carbon chain alcohols with mixed methacrylic acid esters were investigated by orthogonal test. The esterification reaction conditions: acid alcohol ratio of 1.2: 1, w (catalyst) was 1.5%, w (inhibitor) was 0.5%, the reaction temperature was 130 ℃, the reaction time was 4h, the air flow rate of 0.16L / min. High-carbon chain alkyl methacrylate as monomer, 1,4-butanediol diacrylate as crosslinking agent, benzoyl peroxide as initiator and polyvinyl alcohol as dispersant were prepared by dispersion polymerization The results showed that the polymerization conditions were: w (crosslinker) 1.2956%, w (initiator) 1.0298%, w (dispersed Agent) was 0.2374% and the reaction temperature was 88 ° C. The maximum oil absorption capacity of the polymer was 16.0340 g of diesel / g resin.