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首页> 外文期刊>Proceedings of the institution of mechanical engineers >The impact of prepreg aging on its processability and the postcure mechanical properties of epoxy-based carbon-fiber reinforced plastics
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The impact of prepreg aging on its processability and the postcure mechanical properties of epoxy-based carbon-fiber reinforced plastics

机译：预浸料的老化对其可加工性和环氧基碳纤维增强塑料的后固化机械性能的影响

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摘要

Due to the intention to increase the product efficiency by weight reduction, the application of carbon fiber reinforced plastics and its processing becomes more and more important for the industrial production planning. The aviation industry mostly uses epoxy-based preimpregnated laminates (prepregs). These prepregs are stored in the refrigerated state and may be processed after defrosting only for a specific shelf-life or so-called out-time. This limitation in processing time reduces the efficiency of the entire production, for example due to the waste of material during production stops. To improve the production effectiveness the shelf-life should be as high as possible, to be able to avoid material waste during production stops. Therefore, the processability and the postcure mechanical properties of two representative prepregs were investigated during this study for different aging stages and correlated with the reactivity of the prepregs.
机译：由于通过减轻重量来提高产品效率的意图，碳纤维增强塑料的应用及其加工对于工业生产计划变得越来越重要。航空工业主要使用基于环氧树脂的预浸层压板（预浸料）。这些预浸料以冷藏状态存储，并且可以在除霜后仅在特定的保存期限或所谓的超时时间内进行处理。加工时间上的这种限制降低了整个生产的效率，例如由于生产停止期间材料的浪费。为了提高生产效率，保质期应尽可能高，以免在生产停止期间浪费材料。因此，在本研究中，针对不同的老化阶段，研究了两种代表性预浸料的可加工性和后固化机械性能，并与预浸料的反应性相关。

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