Mechanical Behaviors of Rice Husk and Boiled Egg Shell Particles Impregnated Coir‐Polyester Composites

Abstract

Summary: This paper aims at improving the mechanical properties of coir fiber reinforced polyester composites through impregnation of rice husk and boiled egg shell in polyester matrix. The composites sheets were manufactured by varying the fabrication parameters such as fiber length, particulate content and fiber content. The mechanical properties of the fabricated composites were determined as per ASTM standards and the effects of fiber length, particulate content and fiber content on mechanical properties of rice husk and boiled egg shells impregnated coirpolyester composites were studied. Scanning electron microscope analysis was used to characterize the fracture behavior of the composites. The investigation witnessed the improvement in mechanical properties on addition of rice husk particulate in coir fiber reinforced polyester composites. Similarly the addition of boiled egg shell in to the composites has enhanced mouldability of the composites. The SEM investigation evidenced the arrest of crack propagation and voids formation on addition of rice husk and egg shell particulates in polyester matrix. This study confirmed the possibility of using rice husk and boiled egg shell impregnated coir fiber reinforced polyester composites in low load bearing applications.

Evaluation of mechanical and thermal properties of tamarind seed filler reinforced vinyl ester composites

“…Less matrix content will result in less stress transfer from the matrix to the fillers. The flexural strength of the TSF‐VE composite is higher than the rice husk and boiled egg shell hybrid fillers impregnated coir‐polyester composites .…”

“…The result indicated that by adding a hybrid filler increased the mechanical properties. From this study, better values of tensile, flexural, and impact strengths of 31.5 MPa, 33 MPa, and 43.5 kJ/m 2 , respectively, are reported .…”

A Comparative Study on Flexural Strength of Novel Drumstick Gum Powder Filled Sisal/Glass Fiber Reinforced Epoxy Composite and Sisal/Glass Fiber Epoxy Composite

“…So this study revealed filler addition increases the mechanical properties of composite. In another work, the addition of 20 % volume fraction of rice husk and egg shell particles in coir fiber composite increased the flexural strength value was 33 MPa obtained (Bharathiraja et al 2016). In another work it is studied the effect of Glass Fiber Polysulfone composite reinforcement on flexural strength of two denture base polymers.…”

Solid waste-based hybrid natural fiber polymeric composites

“…19 Rice husk can be better hybrid particle than coir polyester composites. 20 The improvement in mechanical properties depends on the fiber loading, particle size of the fiber, concentration and chemical structure of the coupling agents. 21 Nanoclay and natural fiber-based hybrid composite are more compatible food packaging materials.…”