| PP/POE/硅灰石复合材料性能的研究 |
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| 引用本文： | 付倬,戴文利,于海美,陈佰全,邹晓轩. PP/POE/硅灰石复合材料性能的研究[J]. 工程塑料应用, 2010, 38(8) |
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| 作者姓名： | 付倬 戴文利 于海美 陈佰全 邹晓轩 |
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| 作者单位： | 湘潭大学; |
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| 摘 要： | 用基本断裂功(EWF)方法研究聚丙烯(PP)/聚烯烃弹性体(POE)/硅灰石复合材料的断裂行为,研究不同硅灰石含量对复合材料断裂行为的影响,并把宏观断裂参数的变化与复合材料的微观结构联系起来,从物质结构上寻求断裂参数变化的原因.结果表明,当PP/POE/硅灰石质量比为62/8/30时,PP/POE/硅灰石复合材料的比基本断裂功为83 kJ/m2,PP/POE/硅灰石复合材料的断裂韧性主要取决于复合材料屈服后抵抗裂纹扩展的能力,PP/POE/硅灰石复合材料的塑性变形能力更依赖于屈服前的行为.相同大小的硅灰石制得的PP/POE/硅灰石复合材料的缺口冲击强度随着硅灰石含量的增加而降低.缺口冲击强度高的复合材料,比基本断裂功却较小,耐长期破裂性也较差,说明基本断裂功比缺口冲击强度更能揭示复合材料长期破坏行为的特征.
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| 关 键 词： | 聚丙烯 断裂行为 断裂韧性 基本断裂功 裂纹扩展 |
STUDY ON PROPERTIES OF PP/POE/WOLLASTONITE COMPOSITE |
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| Fu Zhuo,Dai Wenli,Yu Haimei,Chen Baiquan,Zou Xiaoxuan. STUDY ON PROPERTIES OF PP/POE/WOLLASTONITE COMPOSITE[J]. Engineering Plastics Application, 2010, 38(8) |
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| Authors: | Fu Zhuo Dai Wenli Yu Haimei Chen Baiquan Zou Xiaoxuan |
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| Affiliation: | Fu Zhuo,Dai Wenli,Yu Haimei,Chen Baiquan,Zou Xiaoxuan (Xiangtan University,Xiangtan 411105,China) |
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| Abstract: | The fracture behavior of PP/POE/wollastonite composite was studied by using the EWF theory.Changes of wollastonite content in the fracture parameters as a function were investigated in terms of the microstructure of the materials.It was found that we values of PP/POE/wollastonite(62/8/30) was 83 kJ/m2.The measurement of energy dissipation showed that improvement in the fracture toughness of PP/POE/wollastonite was mainly due to the increase in crack propagation resistance during the necking and tearing proc... |
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| Keywords: | polypropylene fracture behavior fracture toughness essential work of fracture crack propagation |
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