Pengaruh Cobalt naphthenate terhadap sifat mekanik komposit fiber glass/epoxy untuk material bilah turbin angin

Ismail, Ihzat Mahendra (2019) Pengaruh Cobalt naphthenate terhadap sifat mekanik komposit fiber glass/epoxy untuk material bilah turbin angin. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pada penelitian ini peneliti ingin menambahan Cobalt Naphthenate sebagai akselerator pada resin epoksi guna mempercepat waktu curing yang diperlukan material komposit epoksi/serat kaca(40%).. Akselerator cobalt memiliki kelebihan dapat curing pada temperatur kamar dan memperbaiki sifat mekanik dari epoksi. Penelitian ini diawali dengan membuat matriks dengan pencampuran resin epoksi, hardener dan dilakukan penambahan variasi Cobalt Naphthenate sebesar 2 %; 4%; 6%; 8% dan 10% dari total jumlah matriks. Kemudian melakukan proses Hand Lay Up matriks dengan serat kaca dengan komposisi matriks:penguat 60% : 40%. Kemudian dilakuan proses curing spesimen pada temperatur kamar. Lalu dilakuakn pengujian pada spesimen, yaitu pengujian SEM, FTIR, Uji Tarik, Uji Kekerasan, Uji Bending, Uji Densitas, dan pengukuran waktu curing. Komposit epoksi/serat kaca (40%)setelah penambahan cobalt naphthenate dapat curing dalam waktu 8 jam. Hasil pengujian morfologi menggunakan SEM menunjukan bahwa penambahan akselerator cobalt dalam rasio tertentu mampu meningkatkan ikatan adeshif antara matriks dan filler. Pengujian tarik menunjukan nilai kekuatan tatik tertinggi adalah 234 Mpa, nilai modulus elastisitas tertinggi adalah 993 Mpa, dan nilai regangan tertinggi dalah 36%. Pengujian bending menunjukan nilai kekuatan flexural tertinggi adalah 396 Mpa dan nilai modulus flexural tertinggi adalah 1,2 Gpa. Pengujian densitas menunjukan nilai densitas optimum adalah 1,27 g/cm3. Pengujian kekerasan menunjukan nilai kekerasan tertinggi adalah 83 Shore D. Pada penelitian ini dapat didikatan bahwa penambahan akselerator cobalt dapat mengurangi waktu curing komposit dan mengoptimalakn sifat mekanik komposit.
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In this study, researchers wanted to add Cobalt Naphthenate as an accelerator to epoxy resin to accelerate curing time which required epoxy / glass fiber(40%) composite material. The cobalt accelerator have the advantage of curing in room temperature . This research begins with making a matrix by mixing epoxy resin, hardener and variations of Cobalt Naphthenate by 0;2; 4; 6; and 8% of the total number of matrices. Then do the Hand Lay Up matrix process with glass fibers with matrix composition: reinforcement 60%: 40%. Then the curing of the specimens was carried out at room temperature. Then tested the specimens, namely testing SEM, FTIR, Tensile Test, Hardness Test, Bending Test, Density Test, and curing time measurement. Epoxy / glass fiber(40%) composite material after addition cobalt naphthenate can cure in 8 hours. The morphological test results using SEM showed a cobalt accelerator in a certain ratio that was able to increase the adhesive bond between the matrix and filler. Tensile testing shows the highest value is 234 MPa, the highest modulus of elasticity is 993 Mpa, and the highest strain value is 36%. The bending test shows the highest highest flexural value is 396 Mpa and the highest modulus flexural value is 1.2 Gpa. The density test shows that the optimal density value is 1.27 g / cm3. Hardness testing shows the highest hardness value is 83 Shore D. In this study it can be concluded that proving the cobalt accelerator can reduce the time to cure the composite and optimize the mechanical properties of composites.

Item Type: Thesis (Other)
Uncontrolled Keywords: Akselerator, Cobalt Napthenate, Resin Epoksi, Serat Kaca, , Sifat Mekanik
Subjects: T Technology > TJ Mechanical engineering and machinery > TJ828 Wind turbines
T Technology > TL Motor vehicles. Aeronautics. Astronautics > TL240.5 Composite materials
Divisions: Faculty of Industrial Technology > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis
Depositing User: Ihzat Mahendra Ismail
Date Deposited: 22 Jul 2026 06:46
Last Modified: 22 Jul 2026 06:46
URI: http://repository.its.ac.id/id/eprint/65851

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