| 丁苯吡乳液聚合的聚合规律研究 |
| Study on regularity in emulsion copolymerization of BD-ST-2-VP latex |
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| DOI： |
| 中文关键词: 丁苯吡胶乳 乳液聚合 聚合规律 |
| 英文关键词: BD-ST-2-VP latex emulsion copolymerization polymerization regularity |
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| 中文摘要: |
| 研究分析丁苯吡乳液聚合过程参数（转化率η、聚合反应速率Rp和聚合釜压力p）和乳液参数（胶乳pH值、粘度μ、表面张力σ、吸附率φ和粒径D等）随聚合时间t的变化规律。结果表明，η-t关系曲线与经典乳液聚合动力学曲线相似；Rp先迅速增大，再保持不变，然后逐渐减小；p先保持不变，后逐渐减小；胶乳pH值缓慢减小；μ先迅速增大，达到峰值后又迅速减小；σ先减小，达到最小值后又逐渐增大；φ和D先增大，达到最大值后又逐渐减小。 |
| 英文摘要: |
| The regularity in the emulsion copolymerization of BD-ST-2-VP latex was investigated by analyzing the parameters of polymerization process，such as conversion percent η，reaction rate Rp and polymerizer pressure p，and the parameters of emulsion，such as pH value of latex，viscosity μ，surface tension σ，adsorption ratio φand particle size D vers time t.The results showed that the η-t curve was similar to classical curve of emulsion polymerization kinetics；R pincreased rapidly at first，maintained constant for a while，and then decreased gradually；pmaintained constant at first and then decreased gradually；the pH value of latex decreased slowly；μincreased rapidly to the peak，and then decreased sharply；σdecreased to the minimum at first，and then increased gradually；and φand Dincreased at first to the maximum，and then decreased gradually.
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