Abstract
The need to have composite materials that are renewable has lead to materials scientists researching on natural fibres. To minimize environmental pollution research into rice husk has been on for a period of time now. In this research cashew nut resin reinforced rice husk composite was fabricated at different particle sizes and different filler loading. The present study reveals that both filler loading and particle size can affect the tensile strength, young modulus, strain at failure, flexural strength, and impact strength. As the % filler content increases all particle sizes (400µm, 600µm and 800µm) shows a quadratic relationship except % elongation at failure which tends to be linear at 400µm. As particle size increases all % filler content shows quadratic relationship which tends to be linear. As particle sizes increases impact strength for 10 and 30% shows a linear equation while 20% shows a quadratic relationship which tends to be linear. In general, RH/CNSR composite could be considered as a potential source of low cost, natural fibre for composites.
Highlights
Material Scientists focus on the use of natural materials for the development of composite materials
In this research cashew nut resin reinforced rice husk composite was fabricated at different particle sizes and different filler loading
The present study reveals that both filler loading and particle size can affect the tensile strength, young modulus, strain at failure, flexural strength, and impact strength
Summary
Material Scientists focus on the use of natural materials for the development of composite materials. The attention is due to their renewable characteristics. To improve on the mechanical properties and obtain the desired characteristics that will be suitable for particular application different matrixes are used for reinforcing natural fillers at various particle sizes. Hemi cellulose and lignin are being investigated for the suitability of replacing synthetic fibres. The use of these natural fillers has been due to its economic advantage during processing, high specific strength, relatively low density and the biodegrability, thereby reducing environmental pollution (Premalal, Ismail, & Baharin, 2002; Bledzki & Gassan, 1999). One lignocellulosic filler has been well investigated is rice husk
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