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首页> 外文会议>International Mechanical Engineering Congress and Exposition >AN INVESTIGATION OF THE INFLUENCE OF METHYL ETHYL KETONE IMMERSION ON SOME ENGINEERING DESIGN PROPERTIES OF CONTINUOUS CARBON FIBRE REINFORCED TOUGHENED AND UNTOUGHENED EPOXY BASED COMPOSITES
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AN INVESTIGATION OF THE INFLUENCE OF METHYL ETHYL KETONE IMMERSION ON SOME ENGINEERING DESIGN PROPERTIES OF CONTINUOUS CARBON FIBRE REINFORCED TOUGHENED AND UNTOUGHENED EPOXY BASED COMPOSITES

机译：甲基乙基酮浸渍对连续碳纤维增强和不带来环氧基复合材料的若干工程设计性能影响的研究

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It has been shown that immersion of composites in environments can lead to either primary chemical attack or a secondary environmental interaction. Conditioning of samples in MEK and an experimental study of dry versus conditioned samples can provide an indication of whether primary chemical attack is an issue. For IM7/977-1 in MEK we have conducted a combination of stiffness, strength and toughness tests and can find no evidence of the consequence of primary chemical attack. Investigation of secondary environmental interaction requires a combination of applied stress and the environment. A series of tensile creep tests are reported for an air and a MEK environment for toughened and untoughened epoxy composites as well as their neat resin systems. A craze mechanicsm is believed to occur for the tests in MEK. Recovery experiments after the onset of crazing show that complete recovery can occur once the load is removed even though the presence of the MEK environment remains.
机译：已经表明，在环境中浸入复合材料可以导致主要化学攻击或次要环境相互作用。 MEK中样品的调理和干燥与条件样本的实验研究可以指示原发性化学攻击是否是一个问题。对于IM7 / 977-1 MEK，我们已经进行了刚度，强度和韧性试验的组合，并且没有发现初级化学攻击后果的证据。对二次环境相互作用的调查需要应用的压力和环境的组合。报告了一系列拉伸蠕变试验，用于空气和MEK环境，用于增韧和不可屈服的环氧复合材料以及它们的整洁树脂系统。据信，在MEK的测试中据信了一个摇摇欲法。在裂缝开始后的恢复实验表明，一旦载重量仍然存在，即使仓位的存在仍然存在，也会发生完全恢复。

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