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http://hdl.handle.net/11452/29611
Title: | Static and dynamic mechanical properties of cotton/epoxy green composites |
Authors: | Koyuncu, Menderes Shaker, Khubab Nawab, Yasir Uludağ Üniversitesi/Teknik Bilimler Meslek Yüksekokulu. 0000-0003-0379-7492 Karahan, Mehmet Karahan, Nevin AAG-8536-2021 AAK-4298-2021 8649952500 22034801200 |
Keywords: | Materials science Natural fibres Adhesion Alkaline Composites Wettability Glass transition temperature Fiber treatment Polymer composites Tensile properties Surface-treatments Alkali treatment Jute Performance Morphology Sisal Hemp Cotton Cotton fabrics Dynamic mechanical analysis Dynamics Elastic moduli Epoxy resins Glass Glass transition Polymer matrix composites Reinforcement Scanning electron microscopy Sodium hydroxide Surface treatment Temperature Tensile strength Alkaline treatment Alkalines Epoxy Epoxy composite Fabric composites Glass transition temperature Tg Green composites Increasing temperatures Reinforced epoxy Static and dynamic mechanical properties |
Issue Date: | 2016 |
Publisher: | Inst Chemical Fibres |
Citation: | Koyuncu, M. vd. (2016). "Static and dynamic mechanical properties of cotton/epoxy green composites". Fibres and Textiles in Eastern Europe, 24(4), 105-111. |
Abstract: | A study on the effect of alkaline treatment on the mechanical properties of cotton fabric reinforced epoxy composites is presented in this paper. One hour treatment of cotton fabric was performed using three different concentrations of sodium hydroxide (NaOH) solution. 1% NaOH treated fabric reinforced composites exhibited maximum improvement in tensile strength. It was concluded that the said NaOH concentration improves interfacial adhesion between the cotton fabric and epoxy resin. Moreover the morphology of the fracture surface, evaluated by scanning electron microscopy (SEM), indicated that surface treatment can yield better adhesion between the fabric and matrix, demonstrating the effectiveness of the treatment. The dynamic mechanical analysis (DMA) results revealed that alkali treated (1% and 3% NaOH) fabric composites exhibit higher storage moduli and glass transition temperature (Tg) values as compared to the untreated fabric composites. However, for all the composite specimens, the storage modulus decreased with increasing temperature (25 -100 degrees C). Tg values of 50.9, 56.7, 52.8 and 37.7 degrees C were recorded for the untreated and (1%, 3% and 5%) treated composites, respectively. The tan delta values decreased for all the composites with increasing temperature, indicating enhanced interactions between the polymer matrix and fabric reinforcement. |
URI: | https://doi.org/10.5604/12303666.1201139 https://www.infona.pl/resource/bwmeta1.element.baztech-d14f55a9-bc9f-4037-a36e-cac7b781e0ea http://hdl.handle.net/11452/29611 |
ISSN: | 2300-7354 1230-3666 |
Appears in Collections: | Scopus Web of Science |
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