马拉松场地器械用纤维复合材料胶接接头的性能研究  

Study on the Properties of Fiber Composite Bonded Joints for Marathon Field Equipment

作　　者：张雪琴[1] 江帆[1] 张琼[2] ZHANG Xueqin;JIANG Fan;ZHANG Qiong(City College,Xi'an Jiaotong University,Xi'an 710018,China;Xi'an Innovation College,Yan'an University,Xi'an 710100,China)

机构地区：[1]西安交通大学城市学院,陕西西安710018 [2]延安大学西安创新学院,陕西西安710100

出　　处：《化学与粘合》2023年第1期62-65,共4页Chemistry and Adhesion

基　　金：2021年陕西省体育局常规课题(编号:2022017)。

摘　　要：以6061铝合金、热固型碳纤维单向板为基底材料,双组分环氧胶粘剂为粘结材料制备了马拉松场地器械用纤维复合材料胶接接头,分别考察了基底材料和胶粘剂的力学性能和扩散性能,并分析了胶接接头的老化行为。结果表明,温度越高,则胶接接头用胶粘剂在盐水中的扩散稀释和饱和吸湿量都更大。相同的老化时间下,胶层厚度越大则胶接接头试样的极限荷载越小。在相同老化时间下,随着胶层厚度增大,胶接接头试样的极限荷载退化率逐渐减小。当胶层厚度为0.4mm和0.6mm时,老化时间为55~165d的胶接接头试样的破坏形式都为混合破坏,而胶层厚度为0.2mm时,胶接接头的破坏形式从内聚破坏+混合破坏转变为混合破坏模式。With the 6061 aluminum alloy and the thermosetting carbon fiber unidirectional board as the base material and the two-component epoxy adhesive as the bonding material, the fiber composite bonded joint for marathon field instruments is prepared. The mechanical properties and diffusion properties of the base material and adhesive are investigated respectively, and the aging behavior of the bonded joint is analyzed. The results show that the higher the temperature is, the greater the diffusion dilution and saturated moisture absorption of the adhesive used for bonded joints in salt water is. In the same aging time frame, the greater the thickness of the adhesive layer is, the smaller the ultimate load of the bonded joint sample is. In the same aging time frame, the ultimate load degradation rate of bonded joint specimens gradually decreases with the increase of adhesive layer thickness. When the thickness of adhesive layer is 0.4mm and 0.6mm, the failure mode of bonded joint samples aged for 55 days to 165 days is mixed failure;while the thickness of adhesive layer is 0.2mm, the failure mode of bonded joint changes from cohesive failure + mixed failure into mixed failure.

关 键 词：场地器械 纤维复合材料 力学性能 老化行为 破坏形式 

分 类 号：TG496[金属学及工艺—焊接]