Effect of fabric modification and clay loading on mechanical properties of reinforced composites

IF 0.1 Q4 ENGINEERING, CHEMICAL Journal of the Pakistan Institute of Chemical Engineers Pub Date : 2019-08-19 DOI:10.54693/piche.04714

Kanza Naseer, N. Ali, W. Khan, Muhammad Ashraf, Imran Shamshad, Khurram Shahzad

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Abstract

Ethylene terephthalate fabric has been used to strengthen the unsaturated polyester resin. The macroscopic, microscopic and spectroscopic studies of the surface modified polyester fabric, bentonite and unsaturated polyester are comparatively investigated by tensile and flexural testing, scanning electron microscopy (SEM) and x-ray diffraction (XRD). Strong fabric and matrix adhesion is governed by surface modification of polyester fabric with alkali treatment. Compared with neat polyester resin, the tensile strength of chemically modified polyester fabric filled unsaturated polyester composites is 47% increase at 3 wt.% of clay and the flexural strength is increased up to 72%. In order to know the delamination tendency, composites broken in mechanical testing are analyzed by SEM. It indicates that delamination tendency, fiber pullout, fiber de-bonding and fiber bridging are reduced in the composites with modified fabric. XRD patterns show that lattice of 3D knitted fabric and MMT composite is body centered cubic

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织物改性和粘土负载对增强复合材料力学性能的影响

对苯二甲酸乙酯织物用于增强不饱和聚酯树脂。采用拉伸和弯曲测试、扫描电镜(SEM)和x射线衍射(XRD)等方法，对表面改性聚酯织物、膨润土和不饱和聚酯的宏观、微观和光谱学进行了比较研究。涤纶织物经碱处理后表面改性，织物和基体的附着力较强。化学改性涤纶织物填充不饱和聚酯复合材料的抗拉强度比纯聚酯树脂提高47%，粘土添加量为3 wt.%时，抗折强度提高72%。为了了解复合材料的分层倾向，利用扫描电镜对力学试验中断裂的复合材料进行了分析。结果表明，改性织物减少了复合材料的分层倾向、纤维拉拔、纤维脱粘和纤维桥接。XRD分析表明，三维针织物与MMT复合材料的晶格为体心立方晶格

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Journal of the Pakistan Institute of Chemical Engineers ENGINEERING, CHEMICAL-

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