小空腔内EVA发泡胶带的黏结性能和发泡行为研究  

Study on adhesive and foaming properties of EVA expandable tape for small volumes

作　　者：刘伟[1] 余才利 陈小澄 张纯[1] 赵克文 LIU Wei;YU Caili;CHEN Xiaocheng;ZHANG Chun;ZHAO Kewen(School of Materials and Energy,Guizhou Institute of Technology,Guiyang 550025,China;Guizhou Yonghong Aviation Machinery Co,Ltd,Guiyang 550025,China;Chongqing Xunchang Adhesive Products Co,Ltd,Chongqing 401120,China)

机构地区：[1]贵州理工学院材料与能源工程学院,贵阳550025 [2]贵州永红航空机械有限责任公司,贵阳550003 [3]重庆迅昌汽车零部件有限公司,重庆401120

出　　处：《中国塑料》2024年第8期40-45,共6页China Plastics

基　　金：国家自然科学基金资助项目(52263004);贵州省自然科学基金资助项目(黔科合基础-ZK[2022]一般179);贵阳贵安人才培养项目(筑科合同[2024]2-12号)。

摘　　要：采用4,4-氧代双苯磺酰肼(OBSH)作为发泡剂、以过氧化苯甲酰(BPO)作为交联剂、C9树脂作为增黏剂制备了乙烯-乙酸乙烯酯(EVA)发泡胶带,研究组分对2D发泡胶带使用性能的影响和机理。结果表明,在合适的EVA/BPO/OBSH/C9(100/3/3/40)条件下,发泡胶带能够在170℃和205℃下发泡。发泡胶带具有良好的使用性能,膨胀率超过2倍,不发生挂流,表面平整。同时,发泡胶带的拉伸强度高于5 MPa,断裂伸长率超过240%,吸水率低于5%。This study prepared a series of ethylene⁃vinyl acetate(EVA)expandable tapes by using 4,4⁃oxobenzenesulfo⁃nyl hydrazine(OBSH)as foaming agent,benzoyl peroxide(BPO)as crosslinking agent,and C9 resin as a tackifier.The effect and mechanism of components on the performance of 2D foam tape were studied.The results indicated that,under the proper blending ratio of EVA/BPO/OBSH/C9(100/3/3/40),the expandable tape could be foamed at both 170℃and 205℃.The expansion rate of the expandable tape exceeded 2 times.And the surfaces of foams were smooth and without irreversible flowing.The tensile strength,the elongation at break and the water absorption of the expansion tape was 5 MPa,240%,and less than 5%,respectively.

关 键 词：发泡胶带 乙烯-乙酸乙烯酯共聚物 声振粗糙度 低挥发性有机化合物 4 4-氧代双苯磺酰肼 

分 类 号：TQ320.7[化学工程—合成树脂塑料工业]