PENGARUH FRAKSI VOLUME SERAT BUAH PINANG DAN SERAT SABUT KELAPA TERHADAP KEKUATAN TARIK DAN IMPACT KOMPOSIT HYBRID BERMATRIK RESIN POLYESTER

HARDIANSA, HARDIANSA (2022) PENGARUH FRAKSI VOLUME SERAT BUAH PINANG DAN SERAT SABUT KELAPA TERHADAP KEKUATAN TARIK DAN IMPACT KOMPOSIT HYBRID BERMATRIK RESIN POLYESTER. Skripsi thesis, Institut Teknologi Dirgantara Adisutjipto.

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Abstract

The utilization and use of natural fibers are increasingly being used. One of them is the use of natural fiber as an alternative substitute for glass fiber for the needs of the automotive industry, households, shipping, and even aviation and the advantages of using natural fibers are low density, corrosion resistance, environmentally friendly, easily biodegradable, recyclable and relatively low production costs. This study aims to investigate the maximum value of fiber volume fractions on the tensile and impact strength properties of hybrid composites with betel nut fibers and coconut husk fibers with polyester resin by using the hand lay-up method. The materials used were betel nut fiber and coconut husk fiber with polyester resin matrix and MEKPO catalyst. The process carried out was by randomly compiling betel nut fiber and coconut husk fiber with a fiber length of 10 mm in each volume fraction variation of 2%, 4%, and 6%. The tensile and impact testing specimens and procedures referred to the ASTM D638-14 and ASTM D6110-08 standards. The results of this study showed that the higher the addition of fiber volume fractions, the tensile strength will increase. The highest tensile strength was found in the volume fraction of 6% (specimen C) of 94% of polyester resin which was 18.73 MPa and the lowest tensile strength of the volume fraction of 2% (specimen A) of 98% of polyester resin which was 11.93 MPa. The higher the addition of the fiber volume fraction will increase the impact strength of the composite. The highest impact strength was found in the volume fraction of 6% (specimen C) of 94% of polyester resin which was 0.057 J/mm2 and the lowest impact strength in the volume fraction of 2% (specimen A) of 98% polyester resin which was 0.049 J / mm2.

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