The honeycomb core which has high compression strength

This invention pertains to a method of making a fiber-reinforced composite structure comprising the steps of (i) forming a paper sheet having a Gurley air resistance at least 200 seconds per 100 milliliters， the sheet comprising from 30 to 70 weight percent p-aramid fiber， (ii) depositing on both surfaces of the paper sheet a compression enhancing layer in a quantity up to 5 weight percent based on the weight of the paper， (iii) forming a honeycomb from the sheet of step (ii)， and (iv) applying a matrix resin coating to the honeycomb of step (iii). This invention pertains to a method of making a fiber-reinforced composite structure comprising the steps of (i) forming a paper sheet having a Gurley air resistance at least 200 seconds per 100 milliliters， the sheet comprising from 30 to 70 weight percent p-aramid fiber， (ii) depositing on both surfaces of the paper sheet a compression enhancing layer in a quantity up to 5 weight percent based on the weight of the paper， (iii) forming a honeycomb from the sheet of step (ii)， and (iv) applying a matrix resin coating to the honeycomb of step (iii).本发明涉及一种纤维增强复合材料结构的制备方法，其包含如下步骤：(i) 制备一张葛尔莱透气度（Gurley air resistance）不低于200秒/100毫升的纸页，该纸页包含30至70重量百分比的对位芳纶纤维（p-aramid fiber）；(ii) 在该纸页的两个表面涂覆一层压缩增强层，其添加量以纸页重量为基准不超过5重量百分比；(iii) 将步骤(ii)所得的纸页加工为蜂窝结构；(iv) 向步骤(iii)所得的蜂窝结构涂覆基体树脂涂层。本发明涉及一种纤维增强复合材料结构的制备方法，其包含如下步骤：(i) 制备一张葛尔莱透气度不低于200秒/100毫升的纸页，该纸页包含30至70重量百分比的对位芳纶纤维；(ii) 在该纸页的两个表面涂覆一层压缩增强层，其添加量以纸页重量为基准不超过5重量百分比；(iii) 将步骤(ii)所得的纸页加工为蜂窝结构；(iv) 向步骤(iii)所得的蜂窝结构涂覆基体树脂涂层。