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研究了双连续相微乳液聚合制备多孔高吸油树脂,以甲基丙烯酸甲酯(MMA)、丙烯酸丁酯(BA)为共聚单体(油相),水(H2O)/乙醇(EtOH)为混合水相,2,2′-偶氮二异丁腈(AIBN)为引发剂,采用十二烷基硫酸钠(SDS)和复配十二烷基硫酸钠/吐温80(SDS/T80)两种乳化体系,调节油相和水相比例,配制出双连续相微乳液.聚合在无搅拌下进行.研究了乳化体系、混合水相含量、单体配比、交联剂和引发剂用量等因素对树脂吸油性能的影响.结果表明,多孔高吸油树脂比同系无孔树脂的吸油速率大大提高,最快可以在2min内达到吸油饱和.树脂对苯,四氢呋喃,四氯化碳的吸油倍率分别达到15.5g/g,15.5g/g,31.7g/g.
In this paper, we studied the preparation of porous high-oil-absorbing resin by bi-continuous microemulsion polymerization. MMA and BA were comonomers (oil phase) and water (H2O) / ethanol The aqueous phase and 2,2’-azobisisobutyronitrile (AIBN) were used as initiator. Sodium dodecyl sulfate (SDS) and sodium dodecyl sulfate / Tween 80 (SDS / T80) Emulsification system, adjusting the ratio of oil phase to water phase to prepare a bicontinuous phase microemulsion. The polymerization was carried out without stirring. The effects of emulsification system, mixed aqueous phase, monomer ratio, crosslinking agent and initiator amount The results showed that the oil absorption rate of the porous high oil-absorbing resin was much higher than that of the same non-porous resin, and the oil absorption rate reached the fastest within 2 minutes.The resin absorption rates of benzene, tetrahydrofuran and carbon tetrachloride were respectively Reaching 15.5 g / g, 15.5 g / g, 31.7 g / g.