| 粉末NBR-PVC共混型热塑性弹性体断裂面的分形维数 |
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| 引用本文： | 张永海,白宝丰,申长雨,陈静波.粉末NBR-PVC共混型热塑性弹性体断裂面的分形维数[J].高分子材料科学与工程,2009(1):55-58. |
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| 作者姓名： | 张永海 白宝丰 申长雨 陈静波 |
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| 作者单位： | 郑州轻工业学院河南省表界面科学重点实验室;郑州大学橡塑模具国家工程研究中心; |
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| 摘 要： | 本文利用扫描电镜对粉末NBR-PVC共混型热塑性弹性体拉伸断面形貌进行了观察与分析;基于断面小岛周长-面积关系,测定了试样的断口分形维数,考察了NBR含量、拉伸断面分形维数、力学性能(拉伸强度、断裂伸长率、邵氏硬度)之间的关系。结果表明,NBR-PVC弹性体拉伸断面的分形维数随着NBR含量的增加而增加,当NBR含量超过29份后其分形维数呈下降趋势;分形维数与材料的拉伸强度、断裂伸长率和邵氏硬度变化关系一致。
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| 关 键 词： | 丁腈橡胶 NBR-PVC热塑性弹性体 断裂面 分形 分形维数 |
Fractal Dimension of Powder NBR-PVC Blend TPE Fracture Surfaces |
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| ZHANG Yong-hai,BAI Bao-feng,SHEN Chang-yu,CHEN Jing-bo.Fractal Dimension of Powder NBR-PVC Blend TPE Fracture Surfaces[J].Polymer Materials Science & Engineering,2009(1):55-58. |
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| Authors: | ZHANG Yong-hai BAI Bao-feng SHEN Chang-yu CHEN Jing-bo |
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| Affiliation: | 1.Zhengzhou University of Light Industry;Henan Provincial Key Laboratory of Surface and Interface Science;2.National Engineering Research Center for Advanced Polymer Processes Technology;Zhengzhou University;Zhengzhou 450002;China |
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| Abstract: | NBR-PVC blend TPE fracture surfaces were observed and analyzed by SEM.Fractal dimensions were calculated based on perimeter-area relation.The relationship among NBR contents,fractal dimension of fracture surfaces and mechanical properties(tensile strength,elongation at break,Shore hardness) was studied.The results show that fractal dimension of NBR-PVC TPE fracture surfaces increases as NBR content increases.Fractal dimension tends to decrease as NBR content exceeds 29.And the change of fractal dimension is... |
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| Keywords: | NBR NBR-PVC TPE fracture surface fractal fractal dimension |
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