Z向增强高阻燃泡沫夹芯复合材料成型工艺研究

Research on Molding Process of Z-Dimensional Reinforced High-Fire-Retardant Foam Sandwich Composites

采用复合材料树脂浸渍模塑成型工艺(SCRIMP)工艺及泡沫缝纫技术制备了以玻璃纤维Z向增强泡沫为芯材的高阻燃夹芯复合材料,分析了原材料、导流方式、真空度、树脂注胶量等参数对其成型工艺的影响。结果表明:通过控制树脂黏度与真空度可以实现树脂在芯材及面层的良好流动,通过改善纤维的浸润剂、导流方式及树脂量等参数,可控制制品缺陷,大幅提升其力学性能。

A seemann composites resin infusion molding process （SCRIMP） and foam stitched technology were developed to prepare Z-dimensional reinforced high-fire-retardant foam sandwich composites and verified to analyze the effects of the process parameters such as raw materials, diversion means, degree of vacuum, resin infusion content on the molding process. The results showed that the uniform resin flow could be realized within the core materials and on the surface layer by controlling the viscosity of resin and the degree of vacuum. Meanwhile, by adjusting the formulation and parameters such as fiber sizing agent, infusion method and resin content, the defects could be avoided and the mechanical performance could be improved substantially.