Effect of compatibiliser on the properties of polypropylene/glass fibre/nanoclay composites

Abstract Glass fibre (GF), nanoclay (NC) and hybrid composites compatibilised with maleic anhydride polypropylene (MAPP) were prepared by extrusion and injection moulding. The fourier transform infra-red spectra revealed the characteristic absorption peaks of MAPP in the compatibilised GF and NC composites. A decrement in the peak intensity of X-ray diffraction patterns of NC composite was obtained as the MAPP content increased indicating a partial exfoliation of NC. The thermogravimetric analysis showed that the incorporation of MAPP into hybrid composites reduced the thermal stability of the material. The dynamic mechanical analysis showed an increase in the storage modulus in the hybrid composites with lower content of MAPP due to the enhancement in the interfacial adhesion between the GF, NC and PP matrix.

摘要 采用挤出与注塑成型工艺，制备了经马来酸酐改性聚丙烯（MAPP）相容化处理的玻璃纤维（GF）、纳米黏土（NC）及其混杂复合材料。傅里叶变换红外光谱测试表明，经相容化处理的GF与NC复合材料中存在MAPP的特征吸收峰。随着MAPP添加量增加，NC复合材料的X射线衍射图谱峰强出现降低，表明NC发生了部分剥离。热重分析结果显示，将MAPP引入混杂复合材料会降低材料的热稳定性。动态力学分析结果表明，当MAPP添加量较低时，混杂复合材料的储能模量有所提升，这源于GF、NC与聚丙烯基体之间的界面粘结性能得到强化。