复合材料用国产中温固化结构胶膜性能研究  

Study on properties of domestic medium temperature curing structural adhesive film for composite materials

作　　者：王伟翰 张思 张宝艳 石峰晖 李栓 WANG Weihan;ZHANG Si;ZHANG Baoyan;SHI Fenghui;LI Shuan(AVIC Manufacturing Technology Institute Composite Technology Center,Beijing 101300,China)

机构地区：[1]中国航空制造技术研究院复合材料技术中心,北京101300

出　　处：《民用飞机设计与研究》2023年第4期43-49,共7页Civil Aircraft Design & Research

摘　　要：研制了一种新型国产中温固化结构胶膜ACTECH®1206F,通过DSC、流变、挥发分和单位面积重量等测试表征其理化性能,通过单搭接剪切强度、滚筒剥离强度、平面拉伸强度等测试表征其对不同基材的粘接性能,并与目前常用的进口胶膜FM-73进行对比试验。结果显示,与FM-73相比,ACTECH®1206F胶膜在室温下Al-Al单搭接剪切强度、室温下碳纤复合材料单搭接剪切强度、室温下蜂窝夹层结构平面拉伸强度等方面表现较好,室温下Al-Al单搭接剪切强度可达37.7 MPa,室温下碳纤复合材料(BA3202W)单搭接剪切强度可达28.8 MPa,室温下蜂窝夹层结构平面拉伸强度可达10.32 MPa。同时,通过SEM观察了ACTECH®1206F胶膜树脂浇铸体的断口形貌,断口较为粗糙,具有明显的曲折裂痕,是典型的韧性断裂,表明ACTECH®1206F胶膜树脂具有良好的韧性。整体来看,ACTECH®1206F胶膜整体性能与FM-73大致相同,可以基本满足民机复合材料领域对中温固化结构胶膜的需求。A new type of domestic medium temperature curing structural adhesive film ACTECH®1206F was developed.Its physical and chemical properties were characterized by DSC,rheology,volatilization and weight per unit area,and its bonding properties to different substrates were characterized by single lapping shear strength,roller stripping strength and plane tensile strength,and were compared with the current commonly used imported adhesive film FM-73.The results showed that compared to FM-73,ACTECH®1206F film performs well in terms of Al-Al single lap shear strength at room temperature,carbon fiber composite single lap shear strength at room temperature,and plane tensile strength of honeycomb sandwich structure at room temperature.Al-Al single lap shear strength at room temperature can reach 37.7 MPa,the single lap shear strength of carbon fiber composite(BA3202W)at room temperature can reach 28.8 MPa,and the plane tensile strength of honeycomb sandwich structure can reach 10.32 MPa at room temperature.At the same time,the fracture morphology of ACTECH®1206F resin casting body was observed by SEM.The fracture is rough and has obvious zigzag cracks,which is typical ductile fracture,indicating that ACTECH®1206F resin has good toughness.On the whole,the overall performance of ACTECH®1206F film is roughly the same as that of FM-73,which can meet the demand for medium-temperature curing structural film in the field of civil aircraft composites.

关 键 词：环氧胶膜 单搭接剪切强度 滚筒剥离强度 平面拉伸强度 

分 类 号：TB332[一般工业技术—材料科学与工程]