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首页> 外文期刊>Journal of Applied Polymer Science >Influence of new thermoplastic sizing agents on the mechanical behavior of poly(ether ketone ketone)/carbon fiber composites
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Influence of new thermoplastic sizing agents on the mechanical behavior of poly(ether ketone ketone)/carbon fiber composites

机译：新型热塑性上浆剂对聚醚酮/碳纤维复合材料力学性能的影响

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摘要

In this study, unidirectional poly(ether ether ketone)/carbon fiber (CF) composite sheets were elaborated with unsized, epoxy-sized, and thermoplastic-sized CFs by hot-press molding. The thermoplastic sizings that we used were poly(ether imide) (PEI) and poly(ether ketone ketone) oligomer aqueous dispersions. Scanning electron microscopy observation of the composites freeze fractures showed that unlike unsized or epoxy-sized CFs, the thermoplastic sizings improved the interaction between the fibers and the matrix. A comparative study of the mechanical relaxations by dynamic mechanical analysis was carried out on the different composites before and after immersion in kerosene. At low temperature, the PEI sizing had a significant influence on the relaxation, particularly after kerosene immersion. The thermoplastic sizings did not modify the glass-transition temperature but improved the kerosene resistance on the composites. (c) 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 42550.
机译：在这项研究中，单向聚醚醚酮/碳纤维（CF）复合片材通过热压成型加工了未定尺寸，环氧尺寸和热塑性尺寸的CF。我们使用的热塑性上浆剂是聚（醚酰亚胺）（PEI）和聚（醚酮酮）低聚物水性分散体。扫描电子显微镜对复合材料冻裂的观察表明，与未筛分或环氧筛分的CF不同，热塑性上浆剂改善了纤维与基体之间的相互作用。通过动态力学分析对不同复合材料在浸入煤油前后的力学松弛进行了比较研究。在低温下，PEI上浆对松弛率有很大影响，特别是在煤油浸没后。热塑性上浆剂不会改变玻璃化转变温度，但会提高复合材料的耐煤油性。 （c）2015 Wiley Periodicals，Inc. J. Appl。 Polym。科学2015，132，42550。

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