Karakterisasi Adhesive Epoxy Yang Diperkuat Serbuk Limbah Cured Carbon Fiber : Analisis Komposisi Kimia, Kekuatan Geser Dan Kekuatan Kelupas

Ssidharta, Firza Pratama (2026) Karakterisasi Adhesive Epoxy Yang Diperkuat Serbuk Limbah Cured Carbon Fiber : Analisis Komposisi Kimia, Kekuatan Geser Dan Kekuatan Kelupas. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Perkembangan industri komposit berbasis Carbon Fiber Reinforced Polymer (CFRP) menghasilkan limbah serbuk cured carbon fiber yang berpotensi menimbulkan permasalahan lingkungan apabila tidak dimanfaatkan secara optimal. Salah satu alternatif pemanfaatannya adalah sebagai filler pada material adhesive berbasis epoxy. Penelitian ini bertujuan untuk mengetahui pengaruh penambahan serbuk limbah cured carbon fiber terhadap kekuatan geser, kekuatan kelupas, mode kegagalan sambungan, serta komposisi kimia filler yang digunakan. Metode penelitian yang digunakan adalah metode eksperimental dengan dua jenis epoxy resin, yaitu epoxy resin lokal EPR 147 dan epoxy resin import AM-8927. Variasi komposisi filler yang digunakan sebesar 5%, 10%, dan 25% berat serbuk limbah cured carbon fiber. Serbuk limbah terlebih dahulu diayak menggunakan mesh 150 (100 μm) dan dikarakterisasi menggunakan pengujian X-Ray Fluorescence (XRF). Selanjutnya dilakukan pengujian Lap Shear berdasarkan ASTM D-1002 dan T-Peel berdasarkan ASTM D-1876 dengan menggunakan baja sebagai substrat. Hasil pengujian XRF menunjukkan bahwa unsur dominan yang terdeteksi setelah proses pemisahan magnetik adalah Ca sebesar 39,3% dan Fe sebesar 30,9%. Pengujian Lap Shear menunjukkan nilai tertinggi pada campuran 10% serbuk dan 90% epoxy EPR 147 sebesar 74,95 psi, sedangkan pada epoxy AM-8927 nilai tertinggi diperoleh pada campuran 25% serbuk dan 75% epoxy sebesar 88,59 psi. Pada pengujian T-Peel, nilai tertinggi diperoleh pada campuran 10% serbuk dan 90% epoxy EPR 147 sebesar 50,32 psi, sedangkan epoxy AM-8927 menghasilkan nilai tertinggi sebesar 32,15 psi pada variasi 25% serbuk. Analisis korelasi menunjukkan bahwa pada epoxy EPR 147 peningkatan kekuatan geser diikuti oleh peningkatan kekuatan kelupas, sedangkan pada epoxy AM-8927 hubungan tersebut tidak konsisten. Hasil penelitian menunjukkan bahwa komposisi optimum untuk meningkatkan performa adhesive diperoleh pada campuran 10% serbuk limbah cured carbon fiber dan 90% epoxy EPR 147.
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The development of the Carbon Fiber Reinforced Polymer (CFRP)-based composite industry produces waste cured carbon fiber powder, which has the potential to cause environmental problems if not utilized optimally. One alternative use is as a filler in epoxy-based adhesive materials. This study aims to determine the effect of adding waste cured carbon fiber powder on shear strength, peel strength, joint failure modes, and the chemical composition of the filler used. The research method used was an experimental method with two types of epoxy resin: local epoxy resin EPR 147 and imported epoxy resin AM-8927. The filler compositions used varied from 5%, 10%, and 25% by weight of the waste cured carbon fiber powder. The waste powder was first sieved using a 150 mesh (100 μm) and characterized using X-Ray Fluorescence (XRF) testing. Next, Lap Shear testing was performed according to ASTM D-1002 and T-Peel testing according to ASTM D-1876 using steel as the substrate. The XRF test results showed that the dominant elements detected after the magnetic separation process were Ca at 39.3% and Fe at 30.9%. Lap Shear testing showed the highest value in a mixture of 10% powder and 90% epoxy EPR 147 at 74.95 psi, while in epoxy AM-8927 the highest value was obtained in a mixture of 25% powder and 75% epoxy at 88.59 psi. In the T-Peel test, the highest value was obtained in a mixture of 10% powder and 90% epoxy EPR 147 at 50.32 psi, while epoxy AM-8927 produced the highest value of 32.15 psi at a variation of 25% powder. Correlation analysis showed that in epoxy EPR 147 the increase in shear strength was followed by an increase in peel strength, while in epoxy AM-8927 the relationship was inconsistent. The results of the study showed that the optimum composition to improve adhesive performance was obtained from a mixture of 10% cured carbon fiber waste powder and 90% EPR 147 epoxy.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Perekat, Epoxy Resin, Cured Carbon Fiber, Pengisi, XRF, Lap Shear, T-Peel, Adhesive, Epoxy Resin, Cured Carbon Fiber Powder, Filler, Lap Shear, T-peel, XRF.
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA455.A34 Adhesives
Divisions:	Faculty of Vocational > Mechanical Industrial Engineering (D4)
Depositing User:	Firza Pratama Ssidharta
Date Deposited:	14 Jul 2026 00:53
Last Modified:	14 Jul 2026 00:53
URI:	http://repository.its.ac.id/id/eprint/134851

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