| PP/PE熔体流动速率比与共混体系力学性能的关系 |
| |
| 引用本文： | 李炳海,陈勇,安峰. PP/PE熔体流动速率比与共混体系力学性能的关系[J]. 工程塑料应用, 2003, 31(7): 8-11 |
| |
| 作者姓名： | 李炳海 陈勇 安峰 |
| |
| 作者单位： | 青岛科技大学高分子科学与工程学院,青岛,266042 |
| |
| 基金项目： | 国家自然科学基金，20074019， |
| |
| 摘 要： | 选择不同熔体流动速率(MFR)的乙-丙共聚型聚丙烯(PP)和聚乙烯(PE),分别配混出一系列不同熔体流动速率比(R_M=MFR_(PP)/MFR_(PE))的共混体系。深入探讨了共聚PP/PE共混体系的力学性能与PP和PE间R_M的关系。结果表明,在适宜的R_M范围內,PE能对乙-丙共聚型PP具有良好增韧增强效果。在025后,体系性能劣化。
|
| 关 键 词： | PP PE 聚丙烯 聚乙烯 熔体流动速率 共混体系 力学性能 |
CORRELATION BETWEEN THE MECHANICAL PROPERTIES AND THE MELTING FLOW RATE RATIO OF PP/PE BLENDS |
| |
| Li Binghai,Chen Yong,An Feng. CORRELATION BETWEEN THE MECHANICAL PROPERTIES AND THE MELTING FLOW RATE RATIO OF PP/PE BLENDS[J]. Engineering Plastics Application, 2003, 31(7): 8-11 |
| |
| Authors: | Li Binghai Chen Yong An Feng |
| |
| Abstract: | A series of PP ( propylene - ethylene copolymer) /PE ( high density polyethylene) blends with different melting flow rate ratio (RM=MFRpp/MFRPE ) were obtained by matching PP and PE with different melting flow rates (MFR). The correlations between the mechanical properties and the RM of PP/PE were investigated. It showed that within some range of RM, PP could be remarkably toughened and strengthened by PE. For 0 < RM< 25, the resulting blends exhibited the behavior of ductile-brittle transition. The tensile strength, the bending strength, the elongation at break and the notched impact strength of the most blends were all improved significantly when 5.0 25) , the performance deteriorated. |
| |
| Keywords: | copolymerized PP polyethylene blending melting flow rate ratio |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
