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Tensile properties of graphene nano-platelets reinforced polypropylene composites

机译:石墨烯纳米片增强聚丙烯复合材料的拉伸性能

摘要

The tensile properties of polypropylene (PP) composites filled separately with three kinds of graphene nano-platelets (GNPs) with different size were measured using a universal materials tester at room temperature and rate of extension of 50 mm/min. It was found that the values of the Young's modulus of the composites increased, the values of the tensile yield strength and tensile fracture of the composites increased slightly while the values of the tensile elongation at break decreased with increasing the GNPs weight fraction. The reinforcement of the composites could be attributed to the relatively big interfacial area and good interfacial adhesion between the matrix and the GNPs.
机译:使用通用材料测试仪在室温下以50 mm / min的扩展速率测量分别填充了三种不同尺寸的石墨烯纳米片(GNP)的聚丙烯(PP)复合材料的拉伸性能。发现随着GNPs重量分数的增加,复合材料的杨氏模量值增加,复合材料的拉伸屈服强度和拉伸断裂值略有增加,而断裂拉伸伸长率的值降低。复合材料的增强可以归因于相对较大的界面面积和基质与GNP之间的良好界面粘合性。

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