| 两类PE-HD/E-TMB共混物的脆韧转变及断面形态 |
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| 引用本文： | 樊卫华,曹艳霞,刘玉坤,白娟,陈金周,王经武.两类PE-HD/E-TMB共混物的脆韧转变及断面形态[J].工程塑料应用,2012,40(6):77-80. |
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| 作者姓名： | 樊卫华 曹艳霞 刘玉坤 白娟 陈金周 王经武 |
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| 作者单位： | 1. 郑州大学护理学院,郑州450052;郑州大学材料科学与工程学院,郑州450052
2. 郑州大学材料科学与工程学院,郑州,450052 |
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| 摘 要： | 用自制增韧母料(E-TMB)分别与2200J型高密度聚乙烯(PE-HD)(HE1)和2911型PE-HD(HE2)热机械共混制得HE1/E-TMB和HE2/E-TMB共混物,用力学性能测试法和扫描电子显微镜研究了两类共混物的脆韧转变和断面形态。结果表明,HE1/E-TMB共混物比HE2/E-TMB共混物在弹性体含量较低的情况下发生脆韧转变,二者的脆韧转变区分别是共混物弹性体质量分数的3%～10%和10%～14%;弹性体质量分数为8%时,HE1/E-TMB共混物的冲击断面为韧性断裂,HE2/E-TMB共混物的冲击断面为脆性断裂,二者属于不同的断裂机理。
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| 关 键 词： | 高密度聚乙烯 增韧母料 脆韧转变 断面形态 |
The Brittle-Ductile Transition and Impact Fracture Surface Morphology of the Two Types PE-HD E-TMB Blends |
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| Fan Weihua
,
Cao Yanxia
,
Liu Yukun
,
Bai Juan
,
Chen Jinzhou
,
Wang Jingwu.The Brittle-Ductile Transition and Impact Fracture Surface Morphology of the Two Types PE-HD E-TMB Blends[J].Engineering Plastics Application,2012,40(6):77-80. |
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| Authors: | Fan Weihua Cao Yanxia Liu Yukun Bai Juan Chen Jinzhou Wang Jingwu |
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| Affiliation: | 1.The Nursing College of Zhengzhou University,Zhengzhou 450052,China;2.College of Material Science and Engineering,Zhengzhou University,Zhengzhou 450052,China) |
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| Abstract: | HE1/E-TMB and HE2/E-TMB blends were prepared by thermal mechanical blending of self-made toughening master batch E-TMB with 2200 J PE-HD(HE1)and 2911 PE-HD(HE2)respectively,the brittle-ductile transition and impact fracture surface morphology of the two types blends were studied by mechanical properties testing method and scanning electron microscope.The results showed that the brittle-ductile transition of HE1/E-TMB blends occurred at lower elastomer content than that of HE2/E-TMB blends,and their elastomer content area of the brittle-ductile transition were respectively 3%-10% and 10%14%.When the mass fraction of elastomer was 8%,the impact fracture surface of HE1/E-TMB blends was ductile fracture,and the HE2/E-TMB′s was brittle fracture.They belonged to different rupture mechanics. |
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| Keywords: | PE-HD blends toughening master batch the brittle-ductile transition impact fracture surface morphology |
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