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ا.د.حمد بن عبدالله فهد اللحيدان

Professor

عضو هيئة تدريس (مشرف كرسي ابحاث السيرفاكتانت)

كلية العلوم
كلية العلوم ,مبنى 5 الدور الثاني ,قسم الكيمياء ,مكتب 2ب97
publication
Journal Article
2025

Mechanical and Thermo-Mechanical Behaviors of Cork Filler-Reinforced Epoxy Composite

Mechanical characteristics were studied for epoxy composites reinforced with cork fillers, analyzing various loading conditions of fillers ranging from 0 to 30%. The fabrication utilized a hand layup method. The results indicated that the composite mechanical properties, glass transition temperature, and storage modulus were optimal at a 20% natural filler loading. Dynamic mechanical analysis (DMA) showcased exceptional energy absorption capabilities up to 110 °C. Thermogravimetric analysis (TGA) showed that the bio-filler degraded quickly, leaving 0.3% remnant, but the cork filler composite (25% v/v) showed an even residue concentration of 9%. Additionally, biodegradability tests showed weight loss in a soil burial test with the addition of bio-filler to the composite.

Magazine \ Newspaper
BioResources
more of publication
publications

This work focuses on the effect of the top and bottom electrodes of PVDF/Ag/Glass and Ag/PVDF/Ag/Glass Multilayer Devices. The top Ag nanodots and bottom Ag thin film are deposited by direct…

by Shalini Selvam, M. Vaishnavi, M. S. Ravisankar, Saravanan A, J. Venkatamuthukumar, Hamad Al-lohedan & Selvaraj Arokiyaraj
2025
Published in:
Springer
publications

This study developed zeolite-A/graphene oxide (GO) nanocomposite for ammonia removal from poultry manure. Zeolite-A, GO, and the zeolite-A/GO composite were synthesized and characterized using…

by Jimoh Oladejo Tijani, Muhammad Sani, Saheed Mustapha, Sarah Udenyi Onogwu, Hassana Ladio Abubakar, Ambali Saka Abdulkareem, Oluwatosin Kudirat Shittu, Abdulsalami Sani Kovo, Titus Chinedu Egbosiuba, Alechine Emmanuel Ameh, Muhammed Muhammed Ndamitso, Ogun
2025
Published in:
Sciencedirect
publications

Mechanical characteristics were studied for epoxy composites reinforced with cork fillers, analyzing various loading conditions of fillers ranging from 0 to 30%. The fabrication utilized a hand…

by Parthasarathy Chandramohan, Mayandi Kalimuthu, Karthikeyan Subramanian, Rajini Nagarajan, Faruq Mohammad, Hamad A Al-Lohedan, Kumar Krishnan, Sikiru O Ismail
2025