ABSTRACT

Green composites are area of interest among researchers due to its eco-friendliness. This paper investigates the fabrication and characteristics of pineapple leaf fibre (PALF) reinforced polylactic acid (PLA) green composites with and without the addition of maleic anhydride (MA) and glycerol triacetate (GTA). Green composites can be applied in single-use short-term applications, like packaging and biomedicals. In this study, the green composites undergo investigation for thermal, mechanical, dynamic and morphological characteristics to find the effect of PALF loading in PLA, with and without compatibilisers. The compatibilising effects were established in FTIR spectroscopy, dynamic mechanical analysis and differential scanning calorimetry. The impact strength increases by 3.3% and 6.5%, respectively, for MA and GTA compatibilisers while an increase of 3.85% and a decline of 1.4% in case of tensile strength was noticed. The morphological studies show a poor interfacial bonding and dispersion attributed to the failure of the on GTA compatibilised composites.

摘要

由于其生态友好性，绿色复合材料是研究人员感兴趣的领域。本文研究了添加和不添加马来酸酐 (MA) 和三乙酸甘油酯 (GTA) 的菠萝叶纤维 (PALF) 增强聚乳酸 (PLA) 绿色复合材料的制备和特性。绿色复合材料可用于一次性短期应用，如包装和生物医学。在这项研究中，对绿色复合材料进行了热、机械、动态和形态特征的研究，以发现 PALF 负载对 PLA 的影响，无论是否有增容剂。在FTIR光谱、动态力学分析和差示扫描量热法中建立了相容效应。冲击强度分别提高3.3%和6.5%，MA 和 GTA 增容剂的拉伸强度增加 3.85%，下降 1.4%。形态学研究表明，由于 GTA 相容复合材料的失效，界面结合和分散性较差。