| dc.description.abstract | In this paper the synthesis and mechanical properties of composite materials with
reinforcing hemp and matrix resin polyester were discussed. The objective of this
research is to know the effect of alkali treatment to the mechanical properties of
continuous hemp reinforced polyester composite. The hemp was immersed in the
alkali solution (10% NaOH for 0, 15, 30, 45, and 60 minutes. And then, it was
washed using fresh water and dried naturally. The matrix used in this research is
unsaturated polyester resin 157 BQTN with MEKPO hardener 1%. Mechanical
properties, tensile strength and elasticity modulus of the composite materials are
determined by performing tensile tests, exactly bending strength and bending
modulus of the composite materials are determined by performing bending tests using
a universal testing machine TM 113 30 KN. Result of the experimental show that of
the mechanical properties (tensile strength, modulus elasticity, bending strength, and
bending modulus) composites materials have the optimum values for 60 minutes
treated fiber. | en_US |
