The invention provides a preparation method of a composite sandwich board, which comprises the steps of prepreg thawing, honeycomb preparation, blanking, prepreg grouping, laying, curing and inspection, a first skin and a second skin are obtained by superposing multiple layers of prepregs, the prepregs are prepared by impregnating a glass fiber material with phenolic resin, and the second skin is prepared by impregnating a glass fiber material with phenolic resin. The first skin and the second skin form the surface of the composite sandwich board, the aramid paper honeycomb core forms the inner layer of the composite sandwich board, and the first skin is thicker than the second skin. Compared with the prior art, through the setting, the electrochemical corrosion resistance of the composite sandwich board is enhanced, the impact resistance of the composite sandwich board is improved, and the weight of the composite sandwich board is reduced.
本发明提出一种复合材料夹心板的制备方法,包括预浸料解冻、蜂窝准备、下料、预浸料分组、铺设、固化以及检验,通过多层预浸料叠加获得第一蒙皮和第二蒙皮,预浸料由酚醛树脂浸渍玻璃纤维材料制成,第一蒙皮和第二蒙皮形成复合材料夹心板的表面,芳纶纸蜂窝芯形成复合材料夹心板的内层,第一蒙皮厚度大于第二蒙皮。与现有技术相比,本发明中,通过上述的设定,增强了复合材料夹心板的耐电化学腐蚀的性能、提高了复合材料夹心板的抗冲击能力以及减轻了复合材料夹芯板的重量。
Preparation method of composite sandwich board
复合材料夹心板的制备方法
2022-10-21
Patent
Electronic Resource
Chinese
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