• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Applied Polymer Science >Investigation of the effect of delayed reflux on PVC grain properties produced by suspension polymerization
【24h】

Investigation of the effect of delayed reflux on PVC grain properties produced by suspension polymerization

机译：延迟回流对悬浮聚合生产PVC颗粒性能的影响研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The effects of the condenser operation on properties of polyvinyl chloride (PVC) particles produced by suspension polymerization process were investigated in a pilot scale reactor. It was observed that delaying reflux operation increased the cold plasticizer absorption of the final resin. Both bulk density and K-value of the PVC powder decreased by increasing time delay in the reflux operation. It was also found that commencement of refluxing before 20% conversion resulted in bimodal particle size distribution (PSD), while monomodal PSD was obtained for longer delays in refluxing. SEM micrographs showed that surface of produced particles were rough and smooth when reflux started before and after 20% conversion, respectively.
机译：在中试规模的反应器中研究了冷凝器操作对悬浮聚合法生产的聚氯乙烯（PVC）颗粒性能的影响。观察到延迟回流操作增加了最终树脂的冷增塑剂吸收。通过增加回流操作中的时间延迟，PVC粉末的堆积密度和K值均降低。还发现在20％转化率之前开始回流会导致双峰粒度分布（PSD），而获得单峰PSD是为了延长回流时间。 SEM显微照片显示，当在20％转化之前和之后开始回流时，所产生的颗粒的表面是粗糙且光滑的。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号