Effect of silane coupling treatments on mechanical properties of epoxy based high‐strength carbon fiber regular (2 x 2) braided fabric composites

• DOI: 10.1002/pc.26311
• Publication Date: 2021-09-18T15:44:34Z
• Authors: Oguz Eryilmaz; Erhan Sancak
• Keywords: Flexural modulus

Abstract Braiding technique is one of the most cost‐effective and versatile methods to manufacture braided preforms for producing textile reinforced composites. Carbon fiber common reinforcing fibers having high strength modulus used in high‐performance In this study, epoxy resin was modified with 3‐aminopropyltriethoxysilane (APTES) 3‐aminopropylmethyldimethoxysilane (APMDMS) order enhance interfacial adhesion between matrix carbon fiber. Composites were produced by vacuum‐assisted infusion method using fabrics which manufactured from a high‐strength standard type (T700S) radial braiding machine. Epoxy treated silane at different concentrations 0.0% 1.0%. According mechanical results, ideal (optimum) concentration APTES APMDMS modification has been around 0.5 wt% system. Also, properties APTES‐treated composites are slightly higher than those APMDMS‐treated same concentration. When it compared untreated composite, APTES/APMDMS epoxy/carbon have led an increase 7.71/6.16% 7.65/6.05% tensile flexural while corresponding resulted 17.48/13.51% 16.63/13.33% terms modulus, respectively. Impact testing results indicate that improved 6.87% 4.31% composites,