Effect of the Addition of Oil Palm Mesocarp Fibers on the Physical and Mechanical Properties of a Polyester Matrix Composite

Table 9

Comparison between theoretical and true moduli of elasticity of the matrix and the fiber.

	Matrix (polyester)	Fiber (OPMF)
Theoretical modulus of elasticity (MPa)	3459.37	3431.19
Experimental modulus of elasticity (MPa)	2319.60	3273.35
Relative error (%)	32.95	4.60

Experimental modulus of elasticity of the matrix obtained by three-point bending test. Average modulus of elasticity of OPMF of the Pissifera variety [48].