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Effect of Aggressive Environments on Composite Properties

机译:侵略性环境对复合材料性能的影响

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Glass-fiber-reinforced epoxy and unsaturated polyester (UPE) composites were fabricated from diglycidyl ether of bisphenol-A (DGEBA) using 10% diethyl triamine 9DETA) as a hardener and unsaturated polyester (UPE) using 1.5% each of methyl ethyl ketone peroxide (MEKP) and cobalt naphthanate as a catalyst and an accelerator, respectively. The fabricated composites were exposed to different aggres-sive environments, such as heat, water ageing, lubricating oil, fuel, and seawater. The exposed specimens were characterized by physical, chemical, mechanical, and thermal properties. A marginal increase (12%) in the mechanical properties in heat ageing, but a reduction in properties in other exposed systems of the epoxy and polyester glass-fiber-reinforced (GFRP) composites, were observed.
机译:玻璃纤维增​​强的环氧和不饱和聚酯(UPE)复合材料是由双酚A的二缩水甘油醚(DGEBA)使用10%的二乙基三胺9DETA作为硬化剂和不饱和的聚酯(UPE)分别使用1.5%的甲乙酮过氧化物制成的(MEKP)和环烷酸钴分别作为催化剂和促进剂。制成的复合材料暴露于不​​同的腐蚀性环境中,例如热,水老化,润滑油,燃料和海水。暴露的样品通过物理,化学,机械和热性能进行表征。在热老化中,机械性能略有提高(12%),但在环氧和聚酯玻璃纤维增​​强(GFRP)复合材料的其他裸露体系中,性能却下降了。

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