基于端羟基聚丁二烯聚氨酯型UV减粘胶的合成与表征
DOI:
作者:
作者单位:

合肥工业大学化学与化工学院

作者简介:

通讯作者:

中图分类号:

基金项目:

阜阳市重大专项(FK20208021)


Synthesis and characterization of UV adhesion-reducing adhesives based on hydroxy-terminated polybutadiene polyurethane
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    本文先以端羟基聚丁二烯与异佛尔酮二异氰酸酯反应,然后以1,4-丁二醇或1,4-丁烯二醇为扩链剂进行扩链,控制主链中C=C含量,并添加二或三官能度的丙烯酸酯交联单体,制备聚氨酯型紫外(UV)减粘胶。傅里叶红外光谱(FT-IR)表征了减粘胶的分子结构。考察交联程度对减粘效果的影响。实验结果表明,随着减粘胶交联密度、凝胶率增加,减粘胶的体积收缩率增大,进而表面粗糙度增加,减粘效果明显。当以1,4-丁烯二醇为扩链剂,三羟甲基丙烷三丙烯酸酯(TMPTA)为可交联单体所得减粘胶UV照射前的剥离力达19N/25mm,UV照射后的剥离力降低至0.2N/25mm,满足使用要求。

    Abstract:

    In this paper, polyurethane UV adhesion-reducing adhesives was prepared by hydroxyl terminated polybutadiene reacted with isophorone diisocyanate firstly, and then 1,4-butanediol or 1,4-butenediol was used as chain extender to expand the chain and control the content of C=C in the main chain, and two or three functional acrylate was used as crosslinking monomer monomers. The molecular structure of the adhesion-reducing adhesives was characterized by Fourier transform infrared spectroscopy (FT-IR). The effect of cross-linking degree on adhesion-reducing was investigated. The experimental results show that with the increase of the cross-linking density and the gel ratio of the adhesion-reducing adhesives, the volume shrinkage of adhesive increases, and then the surface roughness increases, and the adhesion-reducing effect is obvious. When 1,4-butenediol is used as chain extender and trimethylolpropane triacrylate (TMPTA) is used as crosslinkable monomer, the peeling strength reaches 19N/25mm before UV irradiation, and decreases to 0.2N/25mm after UV irradiation, which meets the application requirements.

    参考文献
    相似文献
    引证文献
引用本文
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2021-12-08
  • 最后修改日期:2022-02-24
  • 录用日期:2022-03-28
  • 在线发布日期:
  • 出版日期:
您是第位访问者
编辑出版:《高分子材料科学与工程》编辑部
地址:四川省成都市一环路南一段24号 四川大学高分子研究所
电话:028-8540 1653  E-mail:gfzclbjb@163.net; gfzclbjb@vip.sina.com
高分子材料科学与工程 ® 2022 版权所有
技术支持:北京勤云科技发展有限公司