| PP/UHMWPE及含有不同添加剂共混物的研究 |
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| 引用本文： | 孙晓晓,桓秀颖,王世哲,王依民,王燕萍.PP/UHMWPE及含有不同添加剂共混物的研究[J].合成技术及应用,2011,26(3):17-21. |
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| 作者姓名： | 孙晓晓 桓秀颖 王世哲 王依民 王燕萍 |
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| 作者单位： | 东华大学材料科学与工程学院,上海,201620 |
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| 基金项目： | 上海市重点学科建设项目资助,项目编号:B603 |
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| 摘 要： | 采用超高分子质量聚乙烯对聚丙烯进行改性,同时采用了3种不同的添加剂PP-MAH、LLDPE、SBS,希望能进一步提高改性效果。通过两次熔融混合制备PP/UHMWPE及含有不同添加剂的共混物,对其力学性能进行测试及表征。实验结果表明,UHMWPE在基体中形成物理交联的网络结构,可在冲击作用下吸收、传递大量的冲击能,从而有...
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| 关 键 词： | 聚丙烯 超高分子质量聚乙烯 拉伸强度 冲击强度 相容性 |
Research on different additives in PP/UHMWPE Blend |
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| Sun Xiaoxiao,Hen Xiuying,Wang Shizhe,Wang Yimin,Wang Yanping.Research on different additives in PP/UHMWPE Blend[J].Synthetic Technology and Application,2011,26(3):17-21. |
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| Authors: | Sun Xiaoxiao Hen Xiuying Wang Shizhe Wang Yimin Wang Yanping |
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| Affiliation: | Sun Xiaoxiao,Hen Xiuying,Wang Shizhe,Wang Yimin,Wang Yanping (College of Matericals Science and Engineering,Donghua University,Shanghai 201620,China) |
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| Abstract: | UHMWPE was applied to modify PP in our study.PP-MAH、LLDPE、SBS were also added in the blend with the aim of further improving the toughening effect of UHMWPE on the matrix.Composites were prepared by two melt mixing processes.The mechanical characters,thermal properties,sub-microscopic morphology and crystallization behaviors were investigated.Forming a physical cross linking network in the matrix,UHMWPE could improve the impact strength of PP by transmitting and absorbing large amount of impact energy.At UHMWPE content of 30%（w）,the impact strength of the blend could reach 68 J/m which is 2.5 times that of pure PP without any loss of tensile strength.As the immiscibility of UHMWPE and PP induced the phase separation,compatibilizer, especially 6%（w） of SBS,could improve it and then further enhance the impact strength of the material. |
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| Keywords: | PP UHMWPE tensile strength impact strength compatibility |
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