| 丁苯胶乳合成中的粒径及其分布 |
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| 引用本文： | 夏成林,钟圣兆,汪家胜,沈家瑞. 丁苯胶乳合成中的粒径及其分布[J]. 合成橡胶工业, 2000, 23(6): 370-371 |
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| 作者姓名： | 夏成林 钟圣兆 汪家胜 沈家瑞 |
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| 作者单位： | 华南理工大学高分子材料科学与工程系,广东广州 510641;华南理工大学高分子材料科学与工程系,广东广州 510641;华南理工大学高分子材料科学与工程系,广东广州 510641;华南理工大学高分子材料科学与工程系,广东广州 510641 |
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| 基金项目： | 广东省自然科学基金,970534, |
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| 摘 要： | 用动态激光光散射法测定了丁二烯－苯乙烯乳液聚合的乳胶料粒子的粒径及其分布,结果表明,在反应初期平均粒径较大,粒径分布最宽,当单体转化率为６０％左右时,乳胶粒子分散度最低,说明粒径较大的液滴逐渐消失,继续聚合,乳胶粒子发生合并聚结,其平均粒径略有增长,粒径分布下降,加入电解质ＫＣｌ是增大乳胶平均粒径的有效方法。
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| 关 键 词： | 丁苯胶乳 粒径 分散度 电解质 |
| 文章编号： | 1000-1255(2000)06-0370-02 |
Size and size distribution of butadiene-styrene latex particles in emulsion copolymerization |
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| Xia Chenglin,Zhong Shengzhao,Wang Jiasheng,Shen Jiarui. Size and size distribution of butadiene-styrene latex particles in emulsion copolymerization[J]. China Synthetic Rubber Industry, 2000, 23(6): 370-371 |
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| Authors: | Xia Chenglin Zhong Shengzhao Wang Jiasheng Shen Jiarui |
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| Abstract: | The latex particles size and size distribution in emulsion copolymerization process of butadiene-styrene were determined by dynamic laser scattering. It was found that the average diameter of the particles was bigger in the beginning of reaction. The droplets of monomers were retrogression and the polydispersity of particles were lower when the monomer conversion was about 60%. In last of reaction the particles generated coagulations. Addition of electrolyte KCl increased the size of latex particles. |
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| Keywords: | butadiene-styrene latex particle size polydispersity electrolyte |
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