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三元共聚吸油树脂的合成及其在处理炼油废水中的应用 总被引:3,自引:0,他引:3
以甲基丙烯酸酯及苯乙烯为单体,过氧化苯甲酰为引发剂,采用悬浮聚合法合成自溶胀型的高吸油性树脂.研究了交联剂及分散剂的种类、引发剂用量、聚合温度、单体配比等因素对高吸油性树脂吸油性能的影响,所合成的高吸油树脂可吸自重15倍以上的苯、14倍以上的二甲苯,处理炼油废水浮油非常有效,且吸油后树脂强度高,可以脱油后莺复使用. 相似文献
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以丙烯酸长链酯、丙烯酸丁酯及甲基丙烯酸甲酯为原料,合成了聚丙烯酸酯吸油树脂。考察了单体配比、交联剂和引发剂用量、搅拌速度对树脂吸收煤油性能的影响。结果表明,最佳合成条件为:引发剂过硫酸铵用量为单体质量的2.85%,交联剂用量为单体质量的1.1%,搅拌速度为190 r/min,单体配比丙烯酸十二酯:丙烯酸十六酯:甲基丙烯酸甲酯:丙烯酸丁酯的质量比为5:2:1:1,在该条件下合成的吸油树脂具有较好的吸油和保油性能,对煤油的吸收倍率是自重的4倍多,保油率达90%以上。 相似文献
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交联剂对合成高吸油性树脂的影响 总被引:3,自引:0,他引:3
采用水分散相悬浮聚合法,以甲基丙烯酸长链烷基酯为单体,二甲基丙烯酸乙二醇酯为交联剂合成高吸油性树脂;并且探讨了交联剂对聚合过程和树脂吸油性能的影响。实验证明,交联剂用量越大,体系凝胶化现象到来得越早,转化率随反应时间增长得较快,但是最终转化率相差不大。交联剂用量越大,树脂对各种油品的吸油倍率越小;交联剂的用量大于0.4mL时,吸油倍率变化不明显。 相似文献
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丙烯酸酯类吸油树脂的研究 总被引:4,自引:0,他引:4
以丙烯酸酯为单体,二乙烯基苯为交联剂,三氯甲烷为致孔剂,采用悬浮聚合法合成了轻度交联的多孔丙烯酸酯类吸油树脂。讨论了交联剂用量、致孔剂用量对树脂吸油性能的影响,测定了树脂的吸油性能并通过SEM照片研究了树脂微观结构。采用该方法合成的丙烯酸酯类吸油树脂具有较高的吸油率。 相似文献
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聚甲基丙烯酸丁酯-苯乙烯高吸油树脂的制备及其吸油性能研究 总被引:1,自引:0,他引:1
以甲基丙烯酸丁酯(BMA)和苯乙烯(St)为单体,二乙烯苯(DVB)为交联剂,偶氮二异丁腈(AIBN)为引发剂,聚乙烯醇(PVA)为分散剂,水为分散介质,运用悬浮聚合法制备了自溶胀型高吸油树脂。通过正交试验考察了单体配比、交联剂用量、引发剂用量和分散剂用量对树脂吸油性能的影响。结果表明:当m(BMA):m(St)=5:5、交联剂用量、引发剂用量和分散剂用量分别为单体总质量0.5%、2%和2%时,吸油树脂吸油倍率达到14.12 g g 1,吸附动力学研究发现此时吸油速率最大;通过热重表征和重复吸油试验,合成的高吸油树脂能够重复吸油多次,第五次的吸油倍率能够达到第一次的93%。 相似文献
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A novel high oil‐absorbing resin, P(EPDM/α‐MSt/ITA), was synthesized by suspension copolymerization with ethylene‐propylene‐diene (EPDM), α‐methylstyrene (α‐MSt), and itaconic acid (ITA) as monomers, benzoyl peroxide as initiator, and divinylbenzene as crosslink agent in this study. By using methods such as infrared spectroscopy, thermogravimetric analysis, and scanning electron microscopy, we studied the oil‐absorbing resin structure, oil‐absorption rate, oil‐absorption saturation time, and submicroscopic structure of oil‐absorption resin after oil absorption. The experiment results show that the highest oil absorptivity of the resin was about 21.9 g/g in diesel oil, obviously increasing the oil absorptive properties by the addition of itaconic acid as reaction monomer. We can draw a conclusion from scanning electron microscopy observation of sample after oil absorption that the oil‐absorption resin was filled with diesel oil, and a kind of morphology structure similar with embossment can be produced during the oil‐absorbing process. The oil‐absorbing resin was used repeatedly through the extraction by ethanol. Experiment result proved to have little effect on oil‐absorption properties. Otherwise, the oil‐absorption rate constant K of novel high oil‐absorbing resin was evaluated for diesel oil, and the oil‐absorbing process obeyed the first‐order kinetics equation. POLYM. ENG. SCI. 2013. © 2012 Society of Plastics Engineers 相似文献
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A high‐oil‐absorbing resin, which was a low crosslinking resin, was synthesized by conventional suspension copolymerization in this study. The effects of the monomer ratio, crosslinker, initiator, ratio of water to oil, and defined optimum reaction conditions were studied. The highest oil absorptivity of the resin was about 11.5 g/g in diesel and the oil‐absorption saturation time was 3 days when the best process conditions were as follows: ratio of styrene to ethylene–propylene–diene terpolymer = 40/60 w/w, amount of crosslinker divinylbenzene = 1.0 wt %, amount of benzoyl peroxide = 1.0 wt %; proportion of gelatin to calcium phosphate = 0.2 g/0.1 g, stirring speed = 500 r/min, and proportion of water to oil = 15 : 1. By using such methods as infrared spectroscopy, thermogravimetric analysis, and other methods, we studied the oil‐absorbing resin structure, oil‐absorption rate, oil‐absorption saturation time, and oil‐absorption rate twice. The oil‐absorbing resins were used repeatedly through the extraction of ethanol. The experiment results show little effect on the oil‐absorption properties. The oil‐absorption rate constant was evaluated for diesel, and the oil‐absorbing process obeyed the first‐order kinetics equation. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2010 相似文献
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采用悬浮聚合法,以水为分散相,甲基丙烯酸十二酯(DMA)为长链单体,苯乙烯(St)为短链单体,二乙烯基苯(DVB)为交联剂,过氧化苯甲酰(BPO)为引发剂,合成了低交联度的高吸油性树脂,研究了单体配比、引发剂用量、交联剂用量对树脂性能的影响,测定了树脂的DSC-TG曲线,以及树脂吸油前后的SEM形貌表征。结果表明:合成的高吸油性树脂吸油效果较为理想,其中对甲苯的吸收倍率可达到7.03g/g,煤油的吸收倍率可达到6.59g/g,航空煤油的吸收倍率可达到6.12g/g,并且树脂具有良好的热稳定性。 相似文献
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以三元乙丙橡胶(EPDM)基吸油树脂作为载体,通过吸附石蜡作为相变物质,制备了高分子固-固相变储能材料。采用悬浮聚合法,探讨了EPDM基高吸油树脂的合成工艺对树脂吸附石蜡性能的影响;用扫描电子显微镜观察了吸油树脂吸附石蜡前后的微观形态变化;利用差示扫描量热仪(DSC)测定了吸附相变材料后,吸油树脂的相变温度和相变焓。结果表明:EPDM基吸油树脂对石蜡的最大吸附量可达4.9 g/g,其相变焓为124.5 J/g,具有较高的应用潜力。 相似文献
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为拓展丝瓜络在油水分离领域的应用,实现农业废弃资源的高值化利用,对天然丝瓜络进行碱-过氧化氢预处理,包括去除蜡质和增大比表面积;配置了纳米二氧化硅和MQ硅树脂疏水分散液,采用超声波辅助浸渍法,以预处理丝瓜络为多孔吸附载体,制得疏水/亲油丝瓜络,并测定其对植物油和水吸附性能、油水混合物的分离效率和重复利用性能。结果表明:浸渍纳米二氧化硅和MQ硅树脂的分散液后,丝瓜络对水和油的接触角分别为140.3°±6°和0°,对植物油和水吸附量分别为4.86g/g和0.28g/g,表现出良好的疏水亲油性能。改性后的丝瓜络对油和水的分离效率分别为76.5%和95.5%,表现出良好的油水分离性能。由于机械挤压破坏了网络结构及部分疏水层的脱落,经过4次过滤后,丝瓜络吸油性能有所降低,影响其重复使用性能。 相似文献
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丙烯酸系高吸油性树脂的合成及性能研究 总被引:1,自引:0,他引:1
采用悬浮聚合法合成了丙烯酸系高吸油性树脂,研究了悬浮聚合丙烯酸系吸油性树脂中不同单体配比、交联剂用量、反应温度等因素对吸油性树脂的吸油倍率的影响。实验结果表明:在优化条件下,吸油性树脂的吸苯能力最大,为19.5g/g。 相似文献