A new assessment on mechanical properties of jute fiber mat with egg shell powder/nanoclay-reinforced polyester matrix composites

ABSTRACT

Natural fiber polymer matrix composites occupy the major percentage in applications due to its ecofriendly and low-cost nature. This study investigates the mechanical properties of a polyester matrix nanocomposite reinforced by the NaOH-treated jute fabric mat (NJM) and untreated jute fabric mat (UJM). In addition, the effects of egg shell powder (ESP) and nanoclay (NC) to the above has also been studied. The matrices were prepared with different combinations of presence and absence of the ESP, NC, and both as well as different weight percentage using compression molding process. The mechanical and morphological properties of the composites were determined. The tensile strength, flexural strength, and impact strength of NJM with NC 1.5%wt and ESP 1.5%wt were found to be 29.28 MPa, 39.51 MPa and impact strength 3.03 J, respectively. This composition is superior to the other compositions. Morphological analysis of tensile fractured surface showed interfacial adhesion between UJM and NJM composites. NJM composites contained smaller amount of pullouts and the splits compared with the UJM composites, which hold up the better performance.

摘要

天然纤维聚合物基复合材料因其生态友好、成本低廉的特点，在应用中占有很大的比重。研究了经NaOH处理的黄麻织物毡（NJM）和未处理黄麻织物毡（UJM）增强的聚酯基纳米复合材料的力学性能。此外，还研究了蛋壳粉（ESP）和纳米粘土（NC）对上述效果的影响。用不同的ESP、NC和两者的组合和不同的重量百分比使用压缩模制工艺制备基质。确定了复合材料的力学性能和形态性能。NC 1.5% WT和ESP 1.5% WT的NJM的抗拉强度、抗弯强度和冲击强度分别为29.28MPa、39.51MPa和冲击强度3.03J。该组合物优于其它组合物。拉伸断口形貌分析表明，UJM与NJM复合材料之间存在界面粘结。NJM复合材料与UJM复合材料相比，具有更小的拉量和劈裂，具有较好的性能。

KEYWORDS:

• Hybrid filler composite
• jute
• egg shell
• nanoclay
• compression moulding

关键词:

• 杂化填料复合材料
• 黄麻
• 蛋壳
• 纳米粘土
• 压缩成型

Acknowledgments

The authors wish to express their gratitude to Center for Composite Materials, Department of Mechanical Engineering, Kalasalingam University for their kind permission to carry out the preparation and testing of the composites.