共查询到19条相似文献,搜索用时 93 毫秒
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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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《分离科学与技术》2012,47(15):2338-2344
Emulsion templating of high internal phase emulsion was used to synthesize high oil-absorption resins with hexadecyl methacrylate and methyl methacrylate as monomers. Effects of cross-linking agent, emulsifier, initiator and porogen, polymerization temperature, polymerization time, the water/oil volume ratio, and the dosage of co-monomer on the properties of high oil-absorption resins were discussed. The optimum polymerization conditions for synthesis of high oil-absorbing resin were obtained. The highest oil absorbency in trichloromethane was 34 g/g. The oil absorbency of the resin remained constant after three times recovery. 相似文献
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Xiaohai Bu Shengwang Chen Dongxian Li Jinghan Liu Zusheng Hang Zewu Zhang 《分离科学与技术》2020,55(7):1227-1238
ABSTRACTIn this paper, novel flower-like hollow MoS2 microspheres (FHMs) were synthesized by a hydrothermal method using MF microspheres as template. The FHMs were hydrophobically modified and utilized as porous fillers to fabricate FHMs/acrylic resin composites through suspension polymerization. The oil-absorption tests revealed that the composite with 4 wt% FHMs had a high oil-absorption capacity, which might be due to the synergistic absorption effect of organic and inorganic components. Their high absorption capacity, rapid absorption rate, and excellent reusability make them attractive options as absorbents for practical oil/water separation. 相似文献
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新型遇油膨胀橡胶的制备与性能研究 总被引:1,自引:0,他引:1
以甲基丙烯酸十八酯(SMA)、甲基丙烯酸丁酯(BMA)和甲基丙烯酸甲酯(MMA)为单体,采用悬浮聚合法合成了高吸油树脂SMA-g-BMA和SMA-g-BMA-g-MMA。分别以吸油树脂和SMA单体为改性剂,以三元乙丙橡胶(EPDM)为基胶,制备了遇油膨胀橡胶(OSR)。结果表明,用吸油树脂制备的遇油膨胀橡胶力学性能优于用SMA单体制备的遇油膨胀橡胶。当吸油树脂用量为20份且SMA∶BMA=1∶2时,OSR拉伸强度为15.2MPa。对汽油、柴油、机油和甲苯的吸收率分别为330%,326%,250%和502%。 相似文献
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Lei Ma Hongxia Lv Haonan Yu Lingtong Kong Rongyue Zhang Xiaoyan Guo Haibo Jin Guangxiang He Xiaoyan Liu 《中国化学工程学报》2021,33(5):286-296
A series of high oil-absorption resins with low cross-linking degree were synthesized by suspension polymerization using stearyl methacrylate(SMA), 2-Ethylhexyl methacrylate(EHMA), and styrene(St) as monomers.Response surface methodology(RSM) with central composite design(CCD) was also applied to determine the optimal parameters that are mainly known to affect their synthesis. Thus, the effects of the monomer mass ratio(EHMA:SMA), the rigid monomer(St) dosage, the porous agent(acetone) dosage, and their pairwise interaction on the resin's oil-absorption capacity were analyzed, highlighting PSES-R_2 as the resin with the optimum performance. The pure oil-absorption rates of PSES-R2 for gasoline, diesel, and kerosene were 11.19 g·g~(-1),16.25 g·g~(-1), and 14.84 g·g~(-1), respectively, while the oil removal rates from oily wastewater were 98.82%,65.11%, and 99.63%, respectively. 相似文献
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丙烯酸2-乙基己酯与丙烯酸羟乙酯共聚合成高吸油性树脂的研究 总被引:13,自引:0,他引:13
以丙烯酸2-乙基己酯和丙烯酸羟乙酯为单体进行共聚合,聚合体系中并不加入交联剂,采用悬浮聚合的方法制得自交联型高吸油性树脂,测定了树脂的吸油性能。系统地研究了影响树脂吸油性能的诸多因素,包括单体配比、引发剂用量、油水相比等。结果表明:树脂的吸油倍率随着单体配比、引发剂用量、油水相比的变化而出现一最佳值,而且树脂对不同油品的吸收能力并不相同,其吸油倍率依次为:甲苯>苯>环己烷>煤油,吸收甲苯可达21.5gg-1, 吸收苯可达20.5gg-1,对不同油品的吸收能力不同这一现象从理论上进行了解释。同时,还测定了树脂的吸油速率和热失重曲线,结果说明树脂在吸油4小时后达到饱和吸收,在370℃以下不分解,说明该树脂在常温下稳定,是一种理想的工业用废液的处理剂。 相似文献
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丙烯酸酯类接枝型高吸油树脂的性能研究 总被引:4,自引:0,他引:4
以聚丁二烯(PB)为改性剂、偶氮二异丁腈(AIBN)为引发剂、丙二醇二丙烯酸酯为交联剂、聚乙烯醇(PVA)为分散剂、甲基丙烯酸丁酯(MBA)和苯乙烯(St)为单体,采用悬浮聚合法制备出一种高吸油树脂。分析了改性剂的用量对树脂吸油速率和吸油倍率的影响,研究了交联剂、分散剂、引发剂以及聚合温度等对树脂吸油倍率的影响。结果表明:加入PB后,可以显著提高树脂的吸油速率,其饱和吸油时间为2~3h;高吸油树脂的最佳配方为m(St)∶m(MBA)=1∶1,油水比1∶3,w(AIBN)=1.0%、w(交联剂)=1.0%和w(PVA)=0.3%(相对于单体质量而言),聚合温度为78℃;由最佳配方合成出的高吸油树脂,其对甲苯的最大吸油倍率为17g/g。 相似文献
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采用微波辐射法,用十六烷基三甲基溴化铵改性膨润土,以丙烯酸丁酯和甲基丙烯酸丁酯为单体,合成高吸油性树脂。研究了分散剂、交联剂、引发剂以及有机膨润土的用量和微波反应时间等因素对树脂吸油性能的影响,通过傅立叶变换红外光谱仪、热重分析仪、扫描电镜分别对有机膨润土的化学基团、树脂的热稳定性及表面形貌进行了表征。与常规合成方法相比,微波辐射法可以缩短反应时间,节能降耗,有机膨润土可改善树脂强度和热稳定性,复合树脂对CHC l3和汽油的最大吸油倍率分别可达36 g/g,16 g/g。 相似文献
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以水稻秸秆为原料进行蒸汽爆破-酯化改性制备溢油吸附材料。未改性水稻秸秆有一定的吸油能力,其饱和吸油倍率、吸水倍率分别为5.66 g·g-1,7.59 g·g-1。通过对水稻秸秆进行蒸汽爆破-酯化改性后,发现其亲油疏水性能得到显著改善。对酯化反应的影响因素进行系统考察,得到优化的改性条件为反应温度为80℃,催化剂对甲基苯磺酸酐浓度为0.75%,反应时间为6 h。改性后水稻秸秆吸油倍率为8.54 g·g-1,吸水倍率为0.10 g·g-1。对蒸汽爆破-酯化改性前后水稻秸秆材料进行BET、XRD以及FT-IR表征,发现爆破处理后材料的孔径增大;非结晶态以及乙酰基特征峰的出现说明水稻秸秆发生酯化改性反应。 相似文献