期刊
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
卷 12, 期 -, 页码 1026-1038出版社
ELSEVIER
DOI: 10.1016/j.jmrt.2021.03.020
关键词
Toughening agent; Liquid natural rubber; Hybrid composites; Void; Epoxy; Kenaf; Automotive
资金
- Universiti Putra Malaysia
- Department of Mechanical and Manufacturing Engineering, Universiti Putra Malaysia
The study investigated the effects of rubber toughened epoxy/silica/kenaf composites on mechanical properties and microstructure, with the addition of liquid rubber enhancing the mechanical performance of the composite for potential automotive applications. SEM analysis showed that the addition of liquid rubber helped in lowering stress transfer and resulted in optimum mechanical properties, making the composite highly suitable for automotive applications.
The effects of rubber toughened epoxy/silica/kenaf composites on mechanical properties and microstructure were investigated. In this study, a combination of silica, liquid rubber, and epoxy was used to toughen epoxy/kenaf composite for potential automotive applications. The composites with various liquid rubber MG30 (LMG30) contents from 1 to 7 phr were fabricated by using hand lay-up method and tested according to ASTM standards by using mechanical testings, which were impact and flexural tests. The modified epoxy and fracture surfaces from the impact test were characterized using scanning electron microscopy (SEM) to study the surface interaction. The addition of 1 part per hundred of resin (phr) of LMG30 in epoxy/silica/kenaf composite exhibited the highest impact and flexural strength, which were 13.83 kJ/m(2) and 62.2 MPa, respectively. SEM analysis proved that the addition of LMG30 helped in lowering the stress transfer and resulted in optimum mechanical properties and the yielded composite has high potential to be used in automotive applications. (C) 2021 Published by Elsevier B.V.
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