Impregnation property across carbon f iber stacks under vacuum pressure
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摘要: 使用自行设计的装置对真空压作用下液体沿单向织物厚度铺层方向的渗透特性进行了初步研究, 通过一系列实验对设备和操作方法进行了规范。通过改变所加真空压力的大小, 研究了蒸馏水、酚醛溶液、丙三醇三种流体对炭纤维织物铺层的渗透规律。结果表明, 随着真空压力增加, 流体对单向织物堆积体的渗透速率增加。相同真空压力条件下, 三种流体中蒸馏水的渗透速率最快; 在5 kPa 和20 kPa 真空压作用下丙三醇的渗透速率快于酚醛溶液; 在40 kPa 和60 kPa 真空压力下, 酚醛溶液的渗透速率快于丙三醇。Abstract: Impregnation behavior of fluids across the unidirectional weave stacks in the t ransverse direction of fibersunder vacuum pressure was investigated elementally by using self-designed tools , and parameters of the operationalmethod were standardized by a series of experiment s. The impregnation properties of distilled water , phenol aldehyde solution , and glycerol in carbon fiber weave stacks were studied by changing the vacuum pressures. The result sshow that the impregnation velocity of fluids improves with increasing the vacuum pressure applied. Under the samevacuum pressure , the impregnation velocity of the distilled water is the fastest . The impregnation velocity of theglycerol is faster than that of the phenol aldehyde solution at 5 kPa and 20 kPa vacuum pressure , while the phenolaldehyde solution is faster than the glycerol at 40 kPa and 60 kPa.
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Key words:
- composites /
- fibers /
- impregnation /
- vacuum pressure
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