橡胶型氯化聚乙烯结构研究 |
Structure of CPE rubber |
|
DOI: |
中文关键词: 氯化聚乙烯 氯分布 相对分子质量 残余结晶度 流变性能 |
英文关键词: CPE chlorine distribution molecular weight residule crystallinity rheological properties |
基金项目: |
|
摘要点击次数: 950 |
全文下载次数: 805 |
中文摘要: |
研究橡胶型氯化聚乙烯(CPE)的氯分布、相对分子质量及其分布、残余结晶度及流变性能。结果表明,橡胶型CPE的氯原子主要以单取代的形式存在于分子链上;4种橡胶型CPE的Mw由大到小顺序为CPE6335,CPE6135,CPE6235,CPE140B,Mw越大,CPE的门尼粘度越小;橡胶型CPE的氯含量越大、氯原子分布越均匀,其残余结晶度越小;橡胶型CPE熔体为剪切变稀流体。 |
英文摘要: |
The chlorine distribution,molecular weight and its distribution,residule crystallinity and rheological properties of different CPE rubbers were investigated by C-NMR,GPC and DSC.The results showed that the chlorine atom was attached to the molecular chain in single substituted way;the order of Mw for 4 different CPE rubbers was as follows:CPE6335>CPE6135>CPE6235>CPE140B,and the higher the Mw,the lower the Mooney viscosity of CPE rubber;the higher chlorine content and more uniform distribution of chlorine atom in CPE rubber,the lower residule crystallinity;and CPE rubber melt was a shear thinning fluid. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
关闭 |