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以甲基丙烯酸甲酯(MMA)、丙烯酸丁酯(BA)及丙烯酸异辛酯(EHA)为共聚单体,二甲基丙烯酸乙醇酯(EGDMA)为交联剂,过氧化苯甲酰(BPO)为引发剂,明胶为分散剂,活性磷酸钙(ATCP)为助分散剂,采用悬浮聚合法在3 L四口烧瓶中合成了三元共聚高吸油树脂。讨论了吸油时间、单体配比、交联剂用量及引发剂用量对树脂吸油性能的影响,结果表明:当MMA、EGDMA、BPO分别为总单体百分含量的2.5%、0.05%及1.5%,明胶、ATCP分别为蒸馏水的0.20%、0.02%时,树脂的吸油性能达最佳,其对煤油和二甲苯的吸附倍率分别为9.76 g/g、23.39g/g,在4h内吸油基本达到饱和,保油率分别为95.5%、94.2%。另外,考察了高吸油树脂的回用性能,试验证明:将吸附油品至饱和的高吸油树脂用乙醇解吸后可至少回用10次。
The copolymers of methyl methacrylate (MMA), butyl acrylate (BA) and isooctyl acrylate (EHA) as comonomers, ethylene glycol dimethacrylate (EGDMA) as crosslinking agent, benzoyl peroxide ) As initiator, gelatin as dispersant and activated calcium phosphate (ATCP) as dispersant, the terpolymer high oil-absorbing resin was synthesized by suspension polymerization in a 3 L four-necked flask. The results showed that when MMA, EGDMA and BPO were 2.5%, 0.05% and 1.5% of the total monomer content respectively, the effects of oil absorption time, monomer ratio, the amount of crosslinking agent and the amount of initiator on the oil absorption were discussed. %, Gelatin and ATCP were respectively0.20% and0.02% of distilled water, the resin had the best oil absorption capacity, the adsorption capacity of kerosene and xylene were9.76g / g and23.39g / g respectively, Saturated, oil retention rates were 95.5%, 94.2%. In addition, the reusability of high oil absorption resin was investigated. The experiment proved that the high oil absorption resin saturated with oil can be reused for at least 10 times after being desorbed by ethanol.