ANALISIS PENGARUH KOMPOSISI SERAT ECENG GONDOK (EICHORNIA CRASSIPES) BERMATRIKS UNSATURATED POLYESTER RESIN (UPR) TERHADAP SIFAT FISIS DAN KUAT TARIK MATERIAL PADA APLIKASI PEMBUATAN INTERIOR MOBIL

Kusuma, Rizky Ariffin Nata (2023) ANALISIS PENGARUH KOMPOSISI SERAT ECENG GONDOK (EICHORNIA CRASSIPES) BERMATRIKS UNSATURATED POLYESTER RESIN (UPR) TERHADAP SIFAT FISIS DAN KUAT TARIK MATERIAL PADA APLIKASI PEMBUATAN INTERIOR MOBIL. Sarjana (S1) thesis, Universitas Islam “45” Bekasi.

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Abstract

The development of composite materials is aimed at replacing the role of metals in the industrial world. Composites are a new type of material that is the result of engineering consisting of two or more materials, namely matrices and reinforcements derived from fibers. One fiber that has the potential to be used as a reinforcement for composite materials is hyacinth fiber. This study aims to find out how the difference in the volume fraction of hyacinth fibers affects the physical properties and tensile strength of the material. The research began by making three types of specimens with differences in fiber volume fractions, namely the composition of KEG 1: 5% fiber and 95% matrix, the composition of KEG 2: 10% fiber and 90% matrix and composition of KEG 3: 15% fiber and 85% matrix with the method of making hand lay - lup. The results of making hyacinth composites are carried out physical properties testing in the form of density testing, water absorption and thickness development as well as mechanical testing with tensile strength tests. The results of physical properties testing show that the average density value of KEG 3 composition has met the JIS A5908 - 2003 standard with a density value of 0.823 g/cm3 . Meanwhile, the water absorption value for the composition of KEG 3 is above the standard value of JIS A5908 – 2003. For the thick development value of the three variations of the composition is still below the maximum permissible limit. While in tensile testing, the highest tensile strength value was obtained in the composition of KEG 3 with an average tensile strength value of 9.63 MPa, strain of 0.573% and the highest modulus value of elasticity in the composition of KEG 1 with a value of 2,030 GPa. Keywords: Fiber Composite, Hyacinth Fiber, Tensile Strength, Physical Properties

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