2023·13基础研究21ModernChemicalResearch当代化工研究2023·13基础研究21ModernChemicalResearch当代化工研究轻质环氧树脂基复合芯材膜制备及力学性能研究＊闫鸿琛刘欣懿张宝艳石峰晖（中国航空制造技术研究院北京101300）摘要：本文针对航空航天对于轻质高刚性夹层结构的需求，开展了轻质环氧树脂基复合芯材膜的制备工艺研究与性能表征。采用熔融共混方法制备了新型轻质高刚性环氧树脂基体，采用热熔法制备了轻质环氧树脂基复合芯材膜，并对其进行了工艺性能、微观结构和典型力学性能的表征。结果表明，本文制备的轻质环氧树脂基复合芯材膜空心微腔结构保持良好，内部质量良好，固化后轻质复合材料密度降低到0.63g/cm3，典型力学性能达到国际先进水平，具有良好的工程应用前景。关键词：环氧树脂；夹层结构；轻质材料；力学性能中图分类号：TB332文献标识码：ADOI：10.20087/j.cnki.1672-8114.2023.13.007PreparationandPropertiesofLightweightEpoxyResinSyntacticCoreYanHongchen,LiuXinyi,ZhangBaoyan,ShiFenghui(AVICManufacturingTechnologyInstitute,Beijing,101300)Abstract：Inordertomeetthedemandofaerospaceforlightweightandhigh-rigiditysandwichstructure,thepreparationprocessandpropertiesoflightweightepoxyresinbasedcompositesyntacticcorewerestudiedinthispaper.Anewlightweightepoxyresinmatrixwithhighrigiditywaspreparedbymeltblendingmethod,andanovellightweightepoxyresinsyntacticcorefilmwaspreparedbyhotmeltingmethod,ofwhichtheprocessingproperties,microstructureandtypicalmechanicalpropertieswerecharacterized.Theresultsshowthatthenovellightweightepoxyresinsyntacticcoremaintainitsmicrocavitystructureandexcellentinternalquality,whilethedensityofthelightweightcompositematerialaftercuringisreducedto0.63g/cm3.Thetypicalmechanicalpropertiesreachtheadvancedworldstandardsandthenovellightweightepoxyresinsyntacticcorehasagoodengineeringapplicationprospect.Keywords：epoxyresin；sandwichstructure；lightweightcomposite；mechanicalproperty环氧树脂基轻质复合材料是指将空心玻璃微珠或其它中空微珠等轻质填料与基体树脂混合而得到的一种轻质复合材料，其空心微球中的空腔构成了复合材料的泡沫结构，它无须经过气泡的成核和膨胀阶段，因而具有诸多优点，例如，易于成型、设备...
