中国塑料 ›› 2024, Vol. 38 ›› Issue (8): 40-45.DOI: 10.19491/j.issn.1001-9278.2024.08.007

• 材料与性能 • 上一篇    下一篇

小空腔内EVA发泡胶带的黏结性能和发泡行为研究

刘伟1, 余才利2, 陈小澄1, 张纯1(), 赵克文3   

  1. 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
  • 收稿日期:2023-11-28 出版日期:2024-08-26 发布日期:2024-08-19
  • 通讯作者: 张纯(1976—),男,教授,从事聚合物结构与性能的研究,zhangchun925@126.com
    E-mail:zhangchun925@126.com
  • 基金资助:
    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)

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

LIU Wei1, YU Caili2, CHEN Xiaocheng1, ZHANG Chun1(), ZHAO Kewen3   

  1. 1.School of Materials and Energy,Guizhou Institute of Technology,Guiyang 550025,China
    2.Guizhou Yonghong Aviation Machinery Co,Ltd,Guiyang 550025,China
    3.Chongqing Xunchang Adhesive Products Co,Ltd,Chongqing 401120,China
  • Received:2023-11-28 Online:2024-08-26 Published:2024-08-19
  • Contact: ZHANG Chun E-mail:zhangchun925@126.com

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 %。

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

Abstract:

This study prepared a series of ethylene⁃vinyl acetate (EVA) expandable tapes by using 4,4⁃oxobenzenesulfonyl 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.

Key words: expandable tape, ethylene?vinyl acetate copolymer, acoustic roughness, low volatile organic compound, 4, 4?oxobenzyl sulfonyl hydrazide

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