用于雷达天线的国产碳纤维预浸料成型工艺优化及配套材料优选  

Optimization of forming process and supporting materials of domestic carbon fiber prepreg for radar antenna

作　　者：孙坤 赵文忠 张晨晖[1,2] 刘明昌 李建伟[1,2] 高琦 许培伦 SUN Kun;ZHAO Wen-zhong;ZHANG Chen-hui;LIU Ming-chang;LI Jian-wei;GAO Qi;XU Pei-lun(The 20th Research Institute of China Electronics Technology Group Corporation,Xi'an 710068,China;China Electronics Technology Northwest Group Corporation,Xi'an 710068,China)

机构地区：[1]中国电子科技集团公司第二十研究所,西安710068 [2]中电科西北集团有限公司,西安710068

出　　处：《复合材料科学与工程》2021年第12期66-72,共7页Composites Science and Engineering

基　　金：国防科研项目(TDXX-CL-19-0XX-2)。

摘　　要：为实现国产碳纤维/环氧树脂织物预浸料在雷达天线中的应用,开展以该碳纤维预浸料为蒙皮的夹层板热压罐成型工艺流程和关键工艺参数优化研究,在此基础上,制备6种以碳纤维预浸料为蒙皮,分别以J-95或SY-24CⅡ胶膜进行胶接,填充J-47D或SY-P6发泡胶或不填充发泡胶的复合材料夹层板,通过平面拉伸、弯曲等力学性能测试分析对该预浸料用于夹层板时的配套材料进行优选研究。研究结果确定采用两步热压罐法进行不填充发泡胶和填充J-47D发泡胶的夹层板成型,采用三步热压罐法进行填充SY-P6发泡胶的夹层板成型,并确定升/降温速率、加压时机等关键工艺参数和工装辅助等提高夹层板质量的措施;对6种夹层板力学性能测试分析发现,SY-24CⅡ胶膜与蒙皮、蜂窝以及发泡胶的匹配性更好。而将两型发泡胶相比,填充SY-P6发泡胶的夹层板的各项力学性能明显更优,因此优选SY-24CⅡ胶膜和SY-P6发泡胶作为配套材料用于雷达天线制造。In order to realize the application of domestic developed carbon fiber/epoxy resin fabric prepreg in radar antenna,the forming process and key process parameters optimization of sandwich plate autoclave with newdeveloped carbon fiber prepreg as skin were studied.On this basis,six kinds of composite sandwich panels were prepared with newly prepared carbon fiber prepreg as skin,bonded with J-95 or SY-24CⅡfilm,filled with J-47D or SY-P6 foam or not filled with foam.Through the test and analysis of plane tensile and bending mechanical properties,the supporting materials of the prepreg used in sandwich plate were optimized.The results of the study showed that the two-step autoclave forming process was used to form the sandwich board without foam or the sandwich board filled with J-47D foam and the three-step autoclave forming process was used to form the sandwich board filled with SY-P6 foam.In addition,the key process parameters,such as the rate of heating or cooling,the pressure timing,and the measures to improve the quality of sandwich panel,such as tooling assistance,were determined.The mechanical properties of six kinds of sandwich panels were tested and analyzed.It was found that SY-24CⅡfilm had a better match with skin,honeycomb and foam,and compared with the two types of foam,the mechanical properties of the sandwich board filled with SY-P6 foam are obviously better.Therefore,SY-24CⅡfilm and SY-P6 foam are determined as supporting materials for the manufacture of radar antenna.

关 键 词：碳纤维复合材料 夹层板 工艺优化 配套材料 力学性能 

分 类 号：TB332[一般工业技术—材料科学与工程]