PENGARUH UKURAN SERBUK ARANG KAYU JATI PADA KOMPOSIT BERMATRIKS EPOKSI TERHADAP HARGA IMPAK DAN KADAR AIR

AGUSTA HERMIWIJAYA, LAURENSIUS (2022) PENGARUH UKURAN SERBUK ARANG KAYU JATI PADA KOMPOSIT BERMATRIKS EPOKSI TERHADAP HARGA IMPAK DAN KADAR AIR. Skripsi thesis, Institut Teknologi Dirgantara Adisutjipto.

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Abstract

Natural fiber is a material that can be used as a substitute for synthetic fibers in the manufacture of composites especially teak sawdust which is easy to find because it is a waste in the process of making wood crafts. Therefore, the use of teak wood fiber as filler can also be useful to reduce waste. This study aimed to investigate the effects of variations in the size of teak sawdust on the physical and mechanical properties (impact testing, SEM testing, and moisture content) on the composite boards. This study used variations of teak sawdust with the sizes of 20, 60, and 100 mesh, with a volume fraction of 4% filler, and the ratio of epoxy and hardener of 1: 1. The results showed that the smaller size of the teak sawdust, the more significant effects on the physical properties and composite mechanics were achieved. The highest impact value as 0.1325 J/mm² and the lowest water content value as 1.5% were achieved in the 100-mesh variation. The results of the SEM test indicated the presence of matrix cracking and voids. This study has met the standard for applying car bumper with a value of 0.016 J/mm², but has not met the standard for car bumper moisture content which indicates below 0.10%.

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