Indian Journal of Fibre & Textile Research
Vol. 31, June 2006, pp. 335-338

 

Flexural properties of rice straw reinforced polyester composites

A V Ratna Prasad, K Murali Mohan Rao ,  M Anil Kumar &  K Mohan Rao

Received 14 September 2004; revised received and accepted 5 April 2005

Rice straw fibres have been extracted and incorporated in polyester resin matrix to prepare rice straw reinforced polyester composites and the flexural properties of resultant composites studied. The composites with a mean flexural strength of 66.3 Mpa, which is greater than that of plain polyester (55.08 MPa), can be formulated with an optimum fibre volume of about 40%. The flexural modulus of composite is found to be 2630 MPa which is about 1.5 times greater than that of plain polyester. The specific flexural modulus is nearly 2 times greater than that of polyester resin. Straw-based composites are suitable as core material for structural board products.

Keywords: Flexural modulus, Flexural strength, Natural fibre composite, Polyester, Rice straw

IPC Code : Int. Cl.8 D01D