ANALISIS SIFAT FISIS DAN SIFAT MEKANIS KOMPOSIT DENGAN SERAT PELEPAH PISANG SEBAGAI ALTERNATIF PENGGANTI SERAT FIBER

Tegar Pramanda, Almas (2023) ANALISIS SIFAT FISIS DAN SIFAT MEKANIS KOMPOSIT DENGAN SERAT PELEPAH PISANG SEBAGAI ALTERNATIF PENGGANTI SERAT FIBER. Thesis thesis, Institut Teknologi Dirgantara Adisutjipto.

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Abstract

The innovation of fiber composites from banana stem fibers is used to increase the economic value of banana stem fibers, therefore a fiber utilization plan from banana stem fibers is designed for composite reinforcement with biodegradable natural fiber materials. This is to support the use of environmentally friendly composites and reduce the use of pollutant synthetic fiber composite materials. The aim of the research was to analyze the mechanical and physical properties of natural fiber composites made from eco-friendly banana fiber materials. The research method for making fiber-reinforced composites from banana stems was soaking 5% NaOH for 2 hours with a volume fraction of 7% fiber and without pure fiber resin as a comparison. Fiber composite from banana stems with epoxy resin matrix and hardener. Mechanical testing was carried out by bending tests using the ASTM D-790 standard. And macro photos were taken on the specimens to get physical results on the composite, natural fibers showed the toughness of the composite load at a fiber volume fraction of 7% resin 93% with an average value of 14.201 kgf and without fiber to get an average value of 10.41 kgf. This showed an increase in the fiber volume fraction of 7% with 5% NaOH immersion would improve the mechanical properties of bending NaOH immersion had an effect on the absorption of banana fronds on the matrix which could increase the adhesion between the fiber reinforcement and the matrix thereby increasing the mechanical properties of bending and strengthening when the specimen was tested bending so that the stress or the load is well distributed. Compared to without fiber when the specimen is loaded or bent it will break easily because there is no composition to strengthen the composite.

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