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A comprehensive study on controlling the porosity of CCF300/PEEK composites by optimizing the impregnation parameters

机译：通过优化浸渍参数来控制CCF300 / PEEK复合材料孔隙率的综合研究

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摘要

In order to manufacture excellent CCF300/PEEK composites, a comprehensive study on controlling porosity of CCF300/PEEK composites was investigated by optimizing the impregnation parameters. Four kinds of PEEK with different melting flow rates (MFR) were employed to study on their rheology behavior and reveal the processing characteristics. The results showed that the viscous flow of PEEK has a higher dependence on the processing pressure than temperature. Furthermore, PEEK rheology behavior was employed to assist the optimization of impregnation parameters. PEEK powders were coated on both sides of single layer CCF300 by a preheating process, and then the semi-impregnated forms were stacked layer by layer to manufacture CCF300/PEEK composites. An optimized impregnation prediction model was established and verified, showing a pretty effective prediction about pressure and holding time at a certain temperature to control the porosity and achieve the full impregnation. Afterwards, the well-impregnated CCF300/PEEK composites were evaluated by their compressive performance, flexural performance and interlaminar shear performance, showing good interfacial and interlaminar bonding to resist the propagation of cracks. POLYM. COMPOS., 39:3765-3779, 2018. (c) 2017 Society of Plastics Engineers
机译：为了制造优异的CCF300 / PEEK复合材料，通过优化浸渍参数研究了CCF300 / PEEK复合材料的控制孔隙率的综合研究。采用不同熔化流量（MFR）的四种PEEK研究其流变学行为并揭示加工特性。结果表明，PEEK的粘性流量比温度更高的加工压力依赖性更高。此外，采用PEEK流变学行为来帮助优化浸渍参数。通过预热过程将PEEK粉末涂覆在单层CCF300的两侧，然后通过层堆叠半浸渍的形式以制造CCF300 / PEEK复合材料。建立并验证了优化的浸渍预测模型，显示了对一定温度的压力和保持时间的相当有效预测，以控制孔隙率并实现完整的浸渍。之后，通过它们的压缩性能，弯曲性能和层间剪切性能来评估浸渍浸渍的CCF300 / PEEK复合材料，显示出良好的界面和层间键合，以抵抗裂缝的传播。聚合物。 Compos。，39：3765-3779,2018。（c）2017塑料工程师协会

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  • 来源
    《Polymer Composites》 |2018年第10期|共15页
  • 作者

    Chen Junlin; Wang Kai; Dong Anqi; Li Xuekuan; Fan Xing; Zhao Yan;

  • 作者单位

    Beihang Univ Sch Mat Sci &

    Engn Beijing 100191 Peoples R China;

    Beihang Univ Sch Mat Sci &

    Engn Beijing 100191 Peoples R China;

    Beihang Univ Sch Mat Sci &

    Engn Beijing 100191 Peoples R China;

    Beihang Univ Sch Mat Sci &

    Engn Beijing 100191 Peoples R China;

    Beihang Univ Sch Mat Sci &

    Engn Beijing 100191 Peoples R China;

    Beihang Univ Sch Mat Sci &

    Engn Beijing 100191 Peoples R China;

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  • 正文语种 eng
  • 中图分类 增强塑料、填充塑料;
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