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Effect of preheat and encapsulation of steel particles on the interaction with Bisphenol A composites
Polymer Testing ( IF 5.1 ) Pub Date : 2020-09-01 , DOI: 10.1016/j.polymertesting.2020.106611
M. Zulsyafiq , M.R. Islam , M.G. Sumdani , A. Firouzi

Abstract In this study, the mechanical and thermal behavior of the steel particles (SP) fabricated epoxy-based composites were investigated. The purpose of using SP was to find out their suitability and compatibility to be used as low-cost fillers for epoxy-based composites. A special steel-cast metal mold was used to fabricate the composites via self-casting method. The effect of SP concentration (10, 20, 30 and 40 wt%) on various properties of the epoxy/SP composites was explored. Another sample was prepared using the optimum loading with a special treatment using heat and encapsulation of the SP. Mechanical properties of the composites were analyzed through tensile, flexural and impact testing. Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM) were used to examine the structural and morphological properties. In addition, thermal properties of the composites were analyzed with the thermogravimetric analyzer (TGA). Results indicated that the addition of PS into epoxy improved both tensile and flexural strength up to 98.5% and 147.6%, respectively, compared to the neat epoxy (NE). The decomposition temperature was raised nearly 18 °C for adding 30 wt% SP which was the maximum among all other composites. Results showed that 30 wt% of SP was the optimum loading for the better properties of the composites. In addition, the preheat treatment of the particles and the encapsulation process established a better interaction between the epoxy and the particles which resulted in the superior performance of the composites compared to the other samples. Overall, the improved mechanical and thermal properties of the SP-fabricated epoxy composites indicate that the epoxy/SP composite is a good candidate for structural and high temperature applications.

中文翻译:

钢颗粒预热和包封对双酚A复合材料相互作用的影响

摘要 在这项研究中,研究了钢颗粒 (SP) 制造的环氧基复合材料的机械和热行为。使用 SP 的目的是找出它们用作环氧基复合材料的低成本填料的适用性和兼容性。使用特殊的钢铸金属模具通过自铸造方法制造复合材料。探讨了 SP 浓度(10、20、30 和 40 wt%)对环氧树脂/SP 复合材料各种性能的影响。另一个样品是使用最佳负载和特殊处理制备的,使用 SP 的加热和封装。通过拉伸、弯曲和冲击试验分析了复合材料的力学性能。傅里叶变换红外光谱 (FTIR) 和扫描电子显微镜 (SEM) 用于检查结构和形态特性。此外,用热重分析仪(TGA)分析了复合材料的热性能。结果表明,与纯环氧树脂 (NE) 相比,将 PS 添加到环氧树脂中后,拉伸强度和弯曲强度分别提高了 98.5% 和 147.6%。添加 30 wt% SP 时分解温度提高了近 18 °C,这是所有其他复合材料中的最大值。结果表明,30wt%的SP是复合材料更好性能的最佳负载。此外,颗粒的预热处理和封装过程在环氧树脂和颗粒之间建立了更好的相互作用,与其他样品相比,这导致了复合材料的优异性能。全面的,
更新日期:2020-09-01
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