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材料工程  2009 

PP/纳米碳酸钙复合材料冲击强度与断口表面分维关系的研究

, PP. 53-56

Keywords: 聚丙烯,碳酸钙,纳米复合材料,断口表面分维,冲击强度

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Abstract:

应用脂肪酸、钛酸酯偶联剂分别对纳米级碳酸钙(Nano-CaCO3)进行表面处理,并用熔融共混法制备PP/Nano-CaCO3复合材料。在室温条件下,测量PP/Nano-CaCO3复合材料的V型缺口冲击强度。采用投影覆盖法测算复合材料的冲击断口表面分维,考察断口表面分维与复合材料冲击强度的关系。结果表明,断口表面分维在2.3673~2.4120之间,相关系数均大于0.95,强的相关性说明断口表面分形特性显著;复合体系冲击强度与断口表面分维之间近似呈指数函数关系。

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