为了考察树脂膜熔渗(RFI)工艺过程中树脂在高温条件下沿织物铺层厚度方向的不饱和渗透特性,应用自行设计的测试系统,考察了液体沿织物铺层厚度方向流动前锋的影响因素,测试并分析了液体沿玻璃纤维铺层厚度方向渗透速率的主要影响因素及其变化规律.结果表明,液体沿纤维织物厚度方向流动为宏观上的一维流动.真空压力增大、树脂温度升高、纤维体积分数减小,均可使液体的渗透速率加快.另外,对比发现,70℃ E-51环氧树脂沿玻璃纤维铺层厚度方向的渗透特性与室温下硅油的渗透特性基本相当.
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