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Akademický článek

Aptness of kenaf powder as a friction modifier in the fabrication of brake friction material by powder metallurgy route

Autor: R. J. Talib, M. A. Selamat, N. A. Nordin, A. Jumahat, H. Sharudin, A. M. Zaharudin

Publikováno v: Jurnal Tribologi, Vol 19, Pp 121-131 (2018)

Braking system is one of the important passive safety features for sustaining the vehicle’s speed while driving downhill, to decelerate the motorcycle and completely stop the moving vehicle. Brake friction materials play an important role in resist

Externí odkaz: https://doaj.org/article/99b38d6f5f35444ba99ed9831e3d39e2

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Akademický článek

Wear properties of nanosilica filled epoxy polymers and FRP composites

Autor: A. Jumahat, S. Kasolang, M.T. Bahari

Publikováno v: Jurnal Tribologi, Vol 6, Pp 24-36 (2015)

This paper is aimed to determine the wear properties of nanosilica filled epoxy polymers and FRP composites. Woven fiberglass has been deployed as the reinforcement material. The fibers were mixed with three different percentages of nanosilica-modifi

Externí odkaz: https://doaj.org/article/65cdae5cdbc9453f8d40b73ac78ac9de

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Akademický článek

Extraction of Cellulose from Arenga Pinnata 'Ijuk' Fiber for Polypropylene Composite: Effect of Multistage Chemical Treatment on the Crystallinity and Thermal Behaviour of Composite

Autor: Evana Yuanita, Adam Febriyanto Nugraha, Aidah Jumahat, Myrna Ariati Mochtar, Mochamad Chalid

Publikováno v: South African Journal of Chemical Engineering, Vol 48, Iss , Pp 112-120 (2024)

Cellulose-based impact polypropylene copolymers (IPC) has been developed by utilizing Arenga pinnata “ijuk” fiber. The cellulose from pristine ijuk fiber (IF) was extracted via alkalization and bleaching treatment using NaClO, with KMnO4 as the a

Externí odkaz: https://doaj.org/article/7e0a146629fa42fa8d40208b334f4504

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Akademický článek

Extraction and Characterization of Micro-fibrillated Cellulose from Rice Husk Waste for Biomedical Purposes

Autor: Nurhayati, Hari Eko Irianto, Rini Riastuti, Azizah Intan Pangesty, Adam F. Nugraha, Mitsugu Todo, Aidah Jumahat, Mochamad Chalid

Publikováno v: International Journal of Technology, Vol 15, Iss 2, Pp 342-352 (2024)

This study aimed to report the extraction of micro-fibrillated cellulose (MFC) from rice husk (RH) through a series of processes including alkalization, bleaching, chemical hydrolysis, and mechanical treatment. The chemical structure, morphology,

Externí odkaz: https://doaj.org/article/4d1c59c63483433aa1ded36acf32fbc8

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