| 人工胶乳法制备氯化橡胶的研究 |
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| 引用本文： | 丁悦,纪利俊,武斌,朱家文.人工胶乳法制备氯化橡胶的研究[J].化学世界,2009,50(11). |
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| 作者姓名： | 丁悦 纪利俊 武斌 朱家文 |
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| 作者单位： | 华东理工大学化学工程研究所; |
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| 摘 要： | 研究了一种制备氯化橡胶的人工胶乳新方法。采用氯苯作为溶剂,溶解天然橡胶后,加入一定量乳化剂和水,制备人工胶乳体系,然后通氯气进行反应,并通过乙醇醇析得到产品。考察了HLB值,乳化剂种类、用量和油水比对乳液体系稳定性的影响,考察了不同体系的氯化反应过程和乙醇脱溶剂过程。实验结果表明,合适的反应条件为:HLB=14,w(Span80+Tween80)=0.4%,油水比为1∶7.5或w(Span80+LAS)=0.3%,油水比为1∶3,在常压,60°C下,反应时间10~12 h。
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| 关 键 词： | 氯化橡胶 人工胶乳 氯苯 乳化剂 醇析 |
Preparing Chlorinated Rubber In Man-made Emulsion |
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| DING Yue,JI Li-jun,WU Bin,ZHU Jia-wen.Preparing Chlorinated Rubber In Man-made Emulsion[J].Chemical World,2009,50(11). |
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| Authors: | DING Yue JI Li-jun WU Bin ZHU Jia-wen |
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| Affiliation: | Chemical Engineering Research Center;East China University of Science and Technology;Shanghai 200237;China |
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| Abstract: | A novel process of preparing chlorinated rubber using man-made emulsion proces was studied.Mono chlorobenzene(C_6H_5Cl) was used as solvent,and natural rubber was dissalved in it to create a rubber solution.Then,certain emulsifier and water into the rubber solution to prepare a man-made emulsion system.Chlorine gas was introduced into the system continually during reaction time.The products were separated through ethanol precipitation.The effects of HLB,type of emulsifier and its amount and oil-water ratio ... |
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| Keywords: | chlorinated rubber man-made emulsion mono chlorobenzene emulsifier ethanol precipitation |
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