-196℃超低温绝热树脂基复合材料的制备及性能研究

Preparation and performance study of-196℃ultra-low temperature insulation resin-based composites

介绍了-196℃超低温绝热树脂基复合材料的研发,并对其性能进行了全面测试。结果表明:通过对环氧树脂的改性并辅以适合的固化剂及促进剂进而制得耐低温、耐腐蚀的高性能基体树脂。通过纳米无机粒子增韧改性和增强材料铺层设计有效地解决了复合材料在高低温冲击下容易产生裂纹的问题。通过树脂固化体系配方优化、固化及冷却工艺的研究解决了超厚(厚度>400mm)复合材料成型工艺难题。产品可应用于民用液化天然气(LNG)行业运输槽罐、贮罐、低温气体贮罐、军用潜艇液氧仓隔热材料、低温风洞隔热材料等领域。

This article introduced the research and development of-196℃ultra-low temperature insulation resin-based composites,and comprehensively tested their performance.The experimental results indicated that a high-performance matrix resin with low temperature resistance and corrosion resistance was prepared by modifying the epoxy resin and supplementing it with suitable curing agents and accelerators.The issue that composites were prone to cracking under high and low temperature impact was effectively addressed through the toughening modification of nano inorganic particles and the design of reinforced material layers.The challenges associated with forming ultra-thick(thickness>400mm)composite materials was solved through the optimization of resin curing system formula,research on curing and cooling processes.The product could be applied to transportation tanks,storage tanks,low-temperature gas storage tanks in the civilian LNG industry,insulation materials for military submarine liquid oxygen tanks,low-temperature wind tunnel insulation materials,and other fields.