| 硫化胶常温脱硫机理研究 |
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| 引用本文： | 黄家湛,蓝方,陈宁,武建勋.硫化胶常温脱硫机理研究[J].高分子材料科学与工程,2002,18(5):171-173. |
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| 作者姓名： | 黄家湛 蓝方 陈宁 武建勋 |
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| 作者单位： | 四川大学高分子研究所,四川,成都,610065 |
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| 基金项目： | 国家自然科学基金资助项目 (2 9874 0 2 6 ) |
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| 摘 要： | 利用甲苯－醋酸－氯化锌在常温睛脱除硫化胶中的橡胶结合硫，使之转化为H2S放出，判断此脱硫过程为Friedel-Crafts反应。
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| 关 键 词： | 硫化胶 常温脱硫机理 研究 Friedel－Crafts反应 |
| 文章编号： | 1000-7555(2002)05-0171-03 |
| 修稿时间： | 2001年11月15 |
STUDY ON MECHANISM OF DESULFURIZATION OF NR VU LCANIZATE AT ORDINARY TEMPERATURE |
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| HUANG Jia zhan,LAN Fang,CHEN Ning,WU Jian xun.STUDY ON MECHANISM OF DESULFURIZATION OF NR VU LCANIZATE AT ORDINARY TEMPERATURE[J].Polymer Materials Science & Engineering,2002,18(5):171-173. |
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| Authors: | HUANG Jia zhan LAN Fang CHEN Ning WU Jian xun |
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| Abstract: | Having been digested with hydrochloric acid ether in N 2 to remove the inorganic sulfide sulfur, the NR sulfur vulcanizate is reacted with toluene acetic acid zinc chloride in N 2 and H 2S is liberated and absorbed as CdS in the absorbing solution. The amount of CdS formed is determined by iodine oxidation of the sulfide. After reaction the crosslink intensity of NR sulfur vulcanizate is dropped greatly, and that of NR DCP vulcanizate is changed little in the controlled experiment. It means that the sulfur crosslinks are removed and the rubber combined sulfur is turned into H 2S to liberate. The desulfurization of NR sulfur vulcanizate is realized. The process of desulfurization is considered as Friedel Crafts reaction. |
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| Keywords: | vulcanizate desulfurization Friedel Crafts reaction |
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