Abstract
Composite is a material formed from a combination of two or more forming materials through a mixture that is not homogeneous. Composites have properties such as corrosion resistance, light weight, faster assembly, and are able to compete with metals by not losing the characteristics and strength of the mechanism. This research was conducted to develop composite materials with more specific properties, one of which is the use of natural fibers as reinforcing raw materials in composites. This research uses the epidermal skin fiber with the epoxy matrix and is applied to the crossbow as a new environmentally friendly composite material and supports the idea of utilizing grained fiber into products that have high economic and technological qualities. This research was carried out by varying the fiber volume fraction of 40%, 50%, 60%, and 70%. In this study tensile test specimens using ASTM D 638 standard. To determine the physical properties, experiments were conducted to calculate density and measurement of fiber diameter. From this study the tensile strength value of the 70% volume fraction is 70.30 MPa The test results show that the composite material of the kersen fibers has increased strength as the fiber volume fraction increases
Highlights
a material formed from a combination
able to compete with metals
of which is the use of natural fibers as reinforcing raw materials
Summary
Jenis Penelitian Jenis penelitian ini adalah penelitian eksperimen, dengan cara membuat suatu material yang terbentuk dari kombinasi dua pembentuknya melalui campuran yang tidak homogen seperti serat kersen sebagai penguat (filler) dan resin epoxy sebagai matriks. Tuangkan campuran bahan tersebut ke dalam cetakan yang sudah disiapkan dari loyang yang telah dibentuk sesuai standar ASTM D 638. N. Spesimen yang sudah kering dilepas dari cetakan kemudian bagian dihaluskan bagian-bagian permukaannya dengan alat kikir dan amplas o. Menyiapkan spesimen dan alat uji tarik yang akan digunakan. Variabel Kontrol (Control Variable) Variabel kontrol yang digunakan dalam penelitian ini adalah Jenis Resin, Jumlah Katalis, Arah Serat, Perlakuan Serat. Bahan dan Instrumen Penelitian Alat yang digunakan dalam penelitian adalah sebagai berikut:. - Loyang - Gerinda - Kacamata - Masket - Penggaris Bahan yang digunakan dalam penelitian adalah sebagai berikut: - Serat Kersen - Resin Epoksi - Katalis - Wax Instrumen yang digunakan dalam proses penelitian adalah sebagai berikut: - Timbangan Digital - Jangka Sorong - Gelas Ukur - Uji Tarik. Tujuan dari penggunaan metode kualitatif deskriptif dan kuantitatif deskriptif adalah untuk memperlihatkan hubungan-hubungan antara fenomena yang terdapat dalam penelitian dan juga untuk memberikan jawaban terhadap hipotesis yang diajukan dalam penelitian
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