| HDPE/E-TMB共混物和HDPE/弹性体共混物的脆韧转变和断面形态 |
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| 引用本文： | 樊卫华,王万杰,曹艳霞,李贵勋,陈金周,李新法,王经武.HDPE/E-TMB共混物和HDPE/弹性体共混物的脆韧转变和断面形态[J].高分子材料科学与工程,2009(9). |
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| 作者姓名： | 樊卫华 王万杰 曹艳霞 李贵勋 陈金周 李新法 王经武 |
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| 作者单位： | 郑州大学材料科学与工程学院; |
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| 摘 要： | 用材料力学性能测试方法和扫描电镜研究了HDPE/E-TMB共混物和HDPE/弹性体共混物的脆韧转变行为和冲击断面形态。结果表明,HDPE/E-TMB共混物的脆韧转变可在弹性体含量较低的情况下发生;弹性体含量相同时,HDPE/E-TMB共混物有更高的冲击强度和拉伸屈服应力;冲击强度相同时,HDPE/E-TMB共混物有更高的拉伸屈服应力和弯曲弹性模量。弹性体含量为8%的两种共混物的冲击断面形态属于不同的断裂机理,这种机理的不同揭示了HDPE/E-TMB共混物具有特殊的结构特征。
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| 关 键 词： | 高密度聚乙烯共混物 增韧母料 脆韧转变 冲击断面形态 |
The Brittle-Ductile Transition and Impact Fracture Surface Morphology of HDPE/E-TMB Blends and HDPE/Elastomer Blends |
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| FAN Wei-hua,WANG Wan-jie,CAO Yan-xia,LI Gui-xun,CHEN Jin-zhou,LI Xin-fa,WANG Jing-wu.The Brittle-Ductile Transition and Impact Fracture Surface Morphology of HDPE/E-TMB Blends and HDPE/Elastomer Blends[J].Polymer Materials Science & Engineering,2009(9). |
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| Authors: | FAN Wei-hua WANG Wan-jie CAO Yan-xia LI Gui-xun CHEN Jin-zhou LI Xin-fa WANG Jing-wu |
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| Affiliation: | FAN Wei-hua,WANG Wan-jie,CAO Yan-xia,LI Gui-xun,CHEN Jin-zhou,LI Xin-fa,WANG Jing-wu(College of Material Science and Engineering,Zhengzhou University,Zhengzhou 450001,China) |
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| Abstract: | The brittle-ductile transition and impact fracture surface morphology of HDPE/E-TMB (HDPE -toughening master batch) blends and HDPE/elastomer blends were studied by material universal testing machine and scanning electron microscope. The results show that brittle-ductile transition of HDPE/E-TMB blends occurs at lower elastomer content. The notched impact strength and the tensile yield stress are higher than those of HDPE/elastomer blends at the same elastomer content. The tensile yield stress and the flexu... |
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| Keywords: | HDPE blends toughening master batch the brittle-ductile transition impact fracture surface morphology |
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