| N31R丁腈橡胶新产品开发 |
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| 引用本文： | 桂强,王忠超,龚光碧,梁滔,钟启林,张元寿,张志强,周雷.N31R丁腈橡胶新产品开发[J].化工新型材料,2012,40(6):121-123. |
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| 作者姓名： | 桂强 王忠超 龚光碧 梁滔 钟启林 张元寿 张志强 周雷 |
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| 作者单位： | 1. 中国石油天然气股份有限公司石油化工研究院,北京,100195
2. 西北师范大学化学化工学院,兰州,730070 |
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| 基金项目： | 中国石油天然气股份有限公司基金 |
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| 摘 要： | 采用低温乳液聚合法制备丁腈橡胶N31R新牌号。通过对油酸钾、松香皂、十二烷基苯磺酸钠、合成脂肪酸钾皂等几种乳化剂的筛选和复配实验,确定了乳化体系:以十二烷基苯磺酸钠和油酸钾作复合乳化剂,且十二烷基苯磺酸钠与油酸钾的用量比为2∶1、复合乳化剂总用量为3.2%。同时优化了聚合配方和工艺条件:聚合转化率在60%之前聚合温度控制在7℃,而聚合转化率在60%之后聚合温度控制在4℃;聚合转化率控制在86%以下为宜。
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| 关 键 词： | N31R 丁腈橡胶 新产品 乳化剂 |
New product development of acrylonitrile-butadiene rubber N31R |
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| Gui Qiang
,
Wang Zhongchao
,
Gong Guangbi
,
Liang Tao
,
Zhong Qilin
,
Zhang Yuanshou
,
Zhang Zhiqiang
,
Zhou Lei.New product development of acrylonitrile-butadiene rubber N31R[J].New Chemical Materials,2012,40(6):121-123. |
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| Authors: | Gui Qiang Wang Zhongchao Gong Guangbi Liang Tao Zhong Qilin Zhang Yuanshou Zhang Zhiqiang Zhou Lei |
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| Affiliation: | 1(1.Lanzhou Petrochemical Research Institute,PetroChina,Beijing 100195; 2.College of Chemistry and Chemical Engineering,Northwest Normal University,Lanzhou 730070) |
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| Abstract: | The new NBR product of N31R was prepared by emulsion polymerization at low temperature.By screening and compounding several kinds of different emulsifier such as potassium oleate,pine soap,dodecyl benzene sulfonic acid sodium and synthetic fatty acid potassium,the emulsification system was identified as compound emulsifier of dodecyl benzene sulfonic acid sodium and potassium oleate in which the mass ratio of dodecyl benzene sulfonic acid sodium to potassium oleate was 2:1 and whose dosage was 3.2%.Furthermore,the polymerization formula and technical condition were optimized further: the polymerization temperature respectively was controlled at 7 and 4℃ before and after the polymerization conversion was 60%;the polymerization conversion was controlled below 86%. |
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| Keywords: | N31R acrylonitrile-butadiene rubber new product emulsifier |
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