...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Polymers for advanced technologies >The influences of α/β compound nucleating agents based on octamethylenedicarboxylic dibenzoylhydrazide on crystallization and melting behavior of isotactic polypropylene
【24h】

The influences of α/β compound nucleating agents based on octamethylenedicarboxylic dibenzoylhydrazide on crystallization and melting behavior of isotactic polypropylene

机译：基于八丁基二羧酸二苯甲酰肼基于八甲基二羧酸二苯甲酰基的α/β复合成核试剂对全同立构聚丙烯结晶和熔化行为的影响

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 influences of α/β compound nucleating agents based on octamethylenedicarboxylic dibenzoylhydrazide on crystallization and melting behavior of isotactic polypropylene (iPP) were analyzed. It is found that the crystallization temperatures of nucleated iPP were increased by above 11.0°C and the relative contents of β‐crystals ( type="mathematics"> K β ) in iPP reached above 0.40 after addition of compound nucleating agents. The type="mathematics"> K β values depend on cooling rate, crystallization temperature in isothermal crystallization, and the difference between the crystallization temperatures of iPP nucleated by two individual nucleating agents. The nonisothermal crystallization kinetics were studied by Caze method and Mo method, respectively. The effective activation energy was calculated by the Friedman's method. The results illustrate that the half crystallization time was shortened and the crystallization rate was increased obviously after addition of nucleating agents, and the effective activation energy was increased with the relative crystallinity.
机译： > 分析了α/β复合成核代理的影响，基于八氰基二羧酸二苯甲酰肼对全同立构聚丙烯（IPP）结晶和熔化行为进行分析。发现核切除的IPP的结晶温度增加11.0℃和β-晶体的相对含量（ type =“mathematics”> k β ）在加入复合成核试剂后，IPP达到0.40。这 type =“mathematics”> k β 值取决于冷却速率，等温结晶中的结晶温度，以及两种单独成核剂的IPP结晶温度之间的差异。通过凸纹法和Mo方法研究了非等热结晶动力学。有效的激活能量由弗里德曼的方法计算。结果说明了半结晶时间缩短，并且在加入成核剂后明显增加结晶速率，并且随着相对结晶度增加有效活化能量。

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