Study on Physio-Mechanical Properties of Rice Husk Ash Polyester Resin Composite

Abstract

The rice husk ash/polyester resin composites were prepared by compression molding method and their physical and mechanical properties were studied by universal testing machine. The hardness of the composites were tested by Leeb rebound hardness tester and Vickers hardness tester .The bulk density of the rice husk ash/polyester resin composite decreased with the addition of the rice husk ash, and the water absorption also found to be increased with increase in soaking time. Flexure strength of the composite was decreased randomly with an increase in rice husk ash content. The elastic modulus for the flexure strength increased up to the percentage 0-10% but decreased on 15% and 20% of the rice husk ash/polyester composite. The compressive strength of the composites was decreased randomly with the addition of rice husk ash content, and the elastic modulus for compressive test was increased firstly on the addition of rice husk ash, but it was decreased after 5%. The Hardness of the prepared composite was found to be decreased with an increase of the addition of rice husk ash content due to elastic deformation.

Graphene oxide from Indonesian biomass: Synthesis and characterization

“…Several methods have been applied to improve the economic value of these wastes. For example, rice husk has been used to produce silica (Madrid et al 2012;Ugheoke and Mamat 2012), as a raw material for biosorbents (Subki and Rohasliney 2012), an adsorbent for oil purification (Otaru et al 2013), a polyester resin composite (Islam et al 2015), etc. Bagasse has been applied as an adsorbent (Gusmão et al 2012), raw material for biosorbents (Said et al 2013), and composite (Patel and Patel 2015), and coconut shells have been used as a raw material for activated carbon (Mozammel et al 2002;Abiko et al 2010).…”

Effect of fibre orientation and stacking sequence on properties of hybrid composites

“…The hardness of the composite is measured using an H-1000 portable hardness testing machine, as shown in Figure 5, according to ASTM A956-06 [9][10][11]. One of the four most commonly used techniques for metal hardness measurement is the Leeb Rebound Hardness Test [9,10,12], patented by the Swiss company Proceq SA. The conventional approaches are based on well-defined measurements of physical indentation hardness.…”

“…Moreover, the physical and mechanical properties of rice husk ash/Polymer composite are seen to vary with the change in rice husk ash content. The elastic modulus of the composite varies with the increase in rice husk content, gradually increasing at first but showing a sudden decrease if the rice husk content reaches 10% [9]. Also, the water absorption of sawdust Acrylonitrile Butadiene Styrene (ABS) composite increases with the increase of soaking time and fibre content [10].…”

Fabrication and Characterization on Physico-Mechanical and Structural Properties of Sawdust Reinforced Acrylonitrile Butadiene Styrene (ABS) Composites

“…Normally reinforcing materials have low densities but strong and the matrix is material which is usually ductile or tough [15] [16] [17]. If the composite is designed and fabricated correctly, the strength of the reinforcement is combined with toughness of the matrix to accomplish a combination of desirable properties which is not available in any single conventional material [18].…”