文献类型：期刊文献

中文题名：反应性聚丙烯/三元乙丙橡胶共混物的流变性能研究

英文题名：Study on rheological properties of reactive PP/EPDM blends

作者：吴唯[1];徐种德[2];周达飞[2]

机构：[1]华东理工大学石油化工学院,上海201512;[2]华东理工大学材料工程学院,上海200237

年份：2000

卷号：20

期号：7

起止页码：33

中文期刊名：现代化工

外文期刊名：Modern Chemical Industry

收录：CSTPCD;;EI(收录号：2000395282032);Scopus;CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：聚丙烯;三元乙丙橡胶;共混;流变性能;橡塑共混

外文关键词：polypropylene, EPDM, reaction, blending, rheological property

摘要：采用高压毛细管流变仪 ,研究了EPDM含量、交联剂、交联助剂等因素对反应性PP/EPDM共混物性能的影响。结果表明 ,EPDM分散相浓度为 2 0～ 2 5phr,反应共混工艺对体系的消缠降粘效果显著 ;交联剂A的含量越高 ,体系表观粘度越小 ,但粘度对剪切的响应不敏感 ;交联剂B和并用交联剂S可抑制PP降解 ,进一步优化材料力学性能 ,并仍保持体系加工流动性高于简单共混PP/EPDM。
Effects of EPDM content, crosslinking agents and crosslinking aids on the rheological properties of reactive PP/EPDM blends are studied by means of a highpressure capillary rheometer. The result shows that the reactive blending has a marked effect of viscosity reduction when the EPDM content in disperse phase is 20～25 phr. The higher the crosslinking agent A content, the smaller the apparent viscosity, but the viscosity is not sensitive to shearing. Crosslinking agent B and crosslinking aid S can inhibit PP degradation and optimize the mechanical properties of reactive PP/EPDM blends while keeping their melt flowability higher than ordinary PP/EPDM blends.