Mechanical properties of natural bamboo fiber / polyurethane composites

In order to better apply natural bamboo fiber / polyurethane composite material,the natural bamboo fiber / polyurethane composites were prepared from the natural bamboo fiber as reinforcing material and polyurethane as basic material in this paper. The performances of the tensile strength breaking elongation and bursting strength were tested and analyzed for the natural bamboo fiber / polyurethane composite material with different mass fraction of Na OH treatment concentration and different natural bamboo fiber content. The results show that with the increase of mass fraction of Na OH,the tensile strength and bursting strength of composite material increased first and then decreased,while the breaking elongation increased gradually. With the increase of the fiber content,the tensile strength and bursting strength of composite material increased first and then decreased,while the breaking elongation reduced with the increase of fiber content.