ABSTRACT

The purpose of the present work is to assess the effectiveness of low-cost and environmental friendly chemical modification of jute fibres based on the usage of sodium hydroxide (AT), sodium carbonate (ST) and sodium hydrogen carbonate (SHT) on the morphological, water absorption, mechanical and tribological characteristics of jute fibre-reinforced epoxy composites (JFREC). Mechanical properties like tensile strength, tensile modulus and impact strength showed appreciable improvement for the AT JFREC (38.08%, 30.56% and 31.66%), ST JFREC (70.03%, 33.06% and 41.30%) and SHT JFREC (24.69%, 8.88% and 22.61%) when compared to untreated JFREC. The experimental results also confirmed that the improved fibre-matrix adhesion, attained by chemical modification, increased the water absorption resistance and the tribological properties of chemically modified JFREC. Improved mechanical and tribological properties attained by the chemically modified JFREC can be found as a potential application in automotive and packaging industries.

摘要

本工作的目的是评估基于使用氢氧化钠（AT）、碳酸钠（ST）和碳酸氢钠（SHT）对黄麻纤维进行低成本且环保的化学改性对形态、黄麻纤维增强环氧复合材料 (JFREC) 的吸水率、机械和摩擦学特性。AT JFREC（38.08%、30.56%和31.66%）、ST JFREC（70.03%、33.06%和41.30%）和SHT JFREC（24.69%、8.88%）的拉伸强度、拉伸模量和冲击强度等机械性能有明显改善。和 22.61%）与未经处理的 JFREC 相比。实验结果还证实，通过化学改性获得的纤维基体粘合力得到改善，提高了化学改性 JFREC 的抗吸水性和摩擦学性能。经过化学改性的 JFREC 获得了改进的机械和摩擦学性能，可以在汽车和包装行业中找到潜在的应用。