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All Journal Rekayasa Mesin CANTILEVER
Zulkarnain, Akbar
Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya
Civil Engineering, Building, Construction & Architecture Engineering Environmental Science Mechanical Engineering Transportation

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Analisis Penambahan Coupling Agent terhadap Sifat Tarik Biokomposit Kulit Waru (Hibiscus Tiliaceus)-Polyester Wirawan, Willy Artha; Widodo, Teguh Dwi; Zulkarnain, Akbar
Jurnal Rekayasa Mesin Vol 9, No 1 (2018)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (585.809 KB) | DOI: 10.21776/ub.jrm.2018.009.01.6

Abstract

The aim of this research is to investigate the effect addition of silane coupling agents of Waru bast-polyester composite on tensile strength. Biocomposite is an innovation in material engineering made from the environment-friendly and potentially-developed bast fibers of Waru tree. Waru bast fibers, as reinforcement, were prepared by alkali procces employing using 6% NaOH solution for 120 minutes and then were added coupling agent with variation of 0%, 0.25%, 0.5%, 0.75% and 1.0%. The biocomposite was formed by continuous fiber arrangement using 60:40 fiber-matrix mass fractions with vacuum pressure resin infusion method. Tensile test specimens were formulated base ASTM D638-03 standard. Biocomposite investigation was performed by tensile test, while bond quality observation utilized use micro photo. The results of the study show that the highest strength of biocomposite was 401,368 Mpa on the silane coupling agent addition0.75%
INOVASI TEKNOLOGI MATERIAL RAMAH LINGKUNGAN DALAM MENDUKUNG PERKEMBANGAN INFRASTRUKTUR TRANSPORTASI KERETA API Wirawan, Willy Artha; Zulkarnain, Akbar; Rozaq, Fadli
CANTILEVER Vol 8, No 1 (2019): Cantilever
Publisher : Jurusan Teknik Sipil dan Perencanaan Fakultas Teknik Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1252.078 KB) | DOI: 10.35139/cantilever.v8i1.76

Abstract

The development of infrastructure to support railway facilities requires innovation in materials that are lightweight, strong and environmentally safe.  The biocomposite is one of the innovations in engineering technology of new materials made of natural fibers.  In this study, the development of environmentally safe materials (biocomposite) was made by using bark fibers of waru trees.  The waru bark fibers were analyzed by varying the compositions of treatment: 0% chemicals, 6% of NaOH, and 0.75% of silane.  Afterwards, the waru bark fibers were formed using the vacuum infusion method by applying a polyester matrix.  In this study, several analyses had been conducted on fiber composition, SEM, and fracture area.  The results showed that the treatment of the structure of alkali-silane fibers (the content of lignin, cellulose, and hemicellulose), made the performance of materials better which had been proven by the decreased fracture area of 250.777 mm2.  The waru bark fiber biocomposite materials can be applied as an innovation in developing fiber replacement materials to support railway interior facilities that are cheaper and environmentally safe.
Co-Authors Rozaq, Fadli Teguh Dwi Widodo Wirawan, Willy Artha