Voids analysis on polyester matrix composites reinforced with a combination of Bambusa bluemena fiber and fiber glass from tensile test results

Abstract

Composites with BQTN 157-EX polyester matrix Yukalac reinforced with bambusablumeanafiber and glass fiber are used to find the right reinforcement composition. For natural fibers that are used to get special treatment, namely the separation of fibers by alkaline immersion process. The mixing process of the 2%, 2.5% and 3% reinforcement volume fraction was used for ASTM D638M-84 tensile testing variations. The maximum tensile strength is obtained in the bamboo powder and glass fiber fraction with a length of 5 mm with a value of 53.581 MPa. Void observations in the form of bubbles were carried out by quantitative metallographic analysis of ASTM E112-10 standards. The result of macroscopic enlargement, most voids in the volume fraction of reinforcement 3% of bamboo fiberhaur and glass 5 mm long an average of 9 point grid. The greater the volume volume fraction of the mixed bamboo and fiberglass, increasing the likelihood of voids occurring.

Effect of Volume Fraction hybrid composite duck feathers (Anas Plathycus Borneo) - Rat Purun Fiber (Eleocharis Dulcis) With Matrix Polyester On Tensile And Bending Strength

“…Debonding occurs due to the lack of binding power between the fiber and the matrix. So that when there is pressure, the matrix is separated from the fiber [20].…”