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以质量比为2:1的丙烯酸丁酯、甲基丙烯酸甲酯为单体,1.0%的过氧化苯甲酰(BPO)为引发剂,0.5%的二乙烯苯(DVB)为交联剂,采用悬浮聚合法合成了丙烯酸系吸油树脂(合成过程中加入一定量的苯乙烯)。研究了苯乙烯单体对吸油树脂微观结构的影响,分析了树脂的吸油性和缓释行为。结果表明:添加苯乙烯后,树脂颗粒表面有孔洞出现,硬度增加;苯乙烯用量为15%时,树脂对小分子CCl4的吸油性最优,同时树脂的热分解温度提高到373.3℃。
The experiment was carried out by using butyl acrylate, methyl methacrylate as monomer, BPO as initiator and DVB as crosslinking agent in mass ratio of 2: 1, Acrylic oil-absorbing resin was synthesized by suspension polymerization (a certain amount of styrene was added during the synthesis). The effects of styrene monomer on the microstructure of the oil-absorbing resin were investigated. The oil absorption and the sustained-release behavior of the resin were analyzed. The results showed that the holes on the surface of the resin particles appeared after the addition of styrene and the hardness increased. When the amount of styrene was 15%, the resin had the best oil absorption for the small molecule CCl4, and the thermal decomposition temperature of the resin increased to 373.3 ℃.