国外低温复合材料贮箱渗漏性能研究进展  

Progress on Leakage Performance of Cryogenic Composite Tank Abroad

作　　者：史汉桥[1] 高坤[1] 刘德博 杨昆晓 孙宝岗[1] SHI Hanqiao;GAO Kun;LIU Debo;YANG Kunxiao;SUN Baogang(Aerospace Research Institute of Materials&Processing Technology,Beijing 100076;Beijing Institute of Astronautical Systems Engineering,Beijing 100076)

机构地区：[1]航天材料及工艺研究所,北京100076 [2]北京宇航系统工程研究所,北京100076

出　　处：《宇航材料工艺》2020年第5期8-13,共6页Aerospace Materials & Technology

基　　金：国家自然科学基金资助(批准号:U1837205);国家重点研发计划资助(2018YFA0702800)。

摘　　要：对低温复合材料贮箱渗漏性能的研究背景、最新发展方向、研究现状进行了概述,重点介绍了复合材料低温微裂纹特性、复合材料低温渗漏性能及其机理模型。研究表明:选用低模量碳纤维、减小树脂基体与碳纤维的线胀系数差别、协同提高树脂基体的低温韧性和强度、减少预浸料单层厚度、增大复合材料铺层角度,可以减少复合材料低温微裂纹,从而降低复合材料低温渗漏率。Research background,latest development direction and present status of leakage performance of cryogenic composite tank are reviewed.Microcracking and permeability of composites under cryogenic temperature and their mechanism model are introduced.The methods of reducing microcracking and leakage rate are summarized.It was shown that the microcarcking of composites under cryogenic temperature can be reduced obviously by using low modulus carbon fiber,reducing the difference of thermal expansion coefficient between resin matrix and carbon fiber,synergistically improving the toughness and strength of resin matrix under cryogenic temperature,decreasing the thickness of prepreg layer and increasing the ply angle of composites.Thus,the leakage rate of composites under cryogenic temperature can be decreased evidently.

关 键 词：低温 复合材料 贮箱 渗漏性 微裂纹 

分 类 号：TB332[一般工业技术—材料科学与工程]