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基于氨基甲酸肟酯键制备可拆卸UV固化胶黏剂

周雅维 李平 韩金石 魏玮 李小杰 刘晓亚

周雅维, 李 平, 韩金石, 等. 基于氨基甲酸肟酯键制备可拆卸UV固化胶黏剂[J]. 功能高分子学报,2022,35(3):1-9 doi: 10.14133/j.cnki.1008-9357.20210908001
引用本文: 周雅维, 李 平, 韩金石, 等. 基于氨基甲酸肟酯键制备可拆卸UV固化胶黏剂[J]. 功能高分子学报,2022,35(3):1-9 doi: 10.14133/j.cnki.1008-9357.20210908001
ZHOU Yawei, LI Ping, HAN Jinshi, WEI Wei, LI Xiaojie, LIU Xiaoya. Preparation of Detachable UV Curing Adhesive Based on Oxime-Carbamate Bond[J]. Journal of Functional Polymers. doi: 10.14133/j.cnki.1008-9357.20210908001
Citation: ZHOU Yawei, LI Ping, HAN Jinshi, WEI Wei, LI Xiaojie, LIU Xiaoya. Preparation of Detachable UV Curing Adhesive Based on Oxime-Carbamate Bond[J]. Journal of Functional Polymers. doi: 10.14133/j.cnki.1008-9357.20210908001

基于氨基甲酸肟酯键制备可拆卸UV固化胶黏剂

doi: 10.14133/j.cnki.1008-9357.20210908001
详细信息
    作者简介:

    周雅维(1996—),女,江苏扬州人,硕士,主要研究方向为光固化胶黏剂。E-mail:1060166178@qq.com

    通讯作者:

    魏 玮, E-mail:wwei1985@jiangnan.edu.cn

  • 中图分类号: TQ322.4

Preparation of Detachable UV Curing Adhesive Based on Oxime-Carbamate Bond

  • 摘要: 以聚四氢呋喃醚二醇(PTMEG)、异佛尔酮二异氰酸酯(IPDI)、丁二酮肟(DMG)和丙烯酸羟乙酯(HEA)为原料合成了聚氨酯丙烯酸酯预聚物。将上述预聚物与光引发剂2-羟基-2-甲基-1-苯基-1-丙酮(HMPP)及活性稀释剂HEA混合,制备了紫外光(UV)固化胶黏剂。利用傅里叶变换红外光谱和核磁共振氢谱表征了聚氨酯丙烯酸酯预聚物的结构,考察了胶黏剂在UV辐照下的双键转化率和固化后的凝胶含量,以钢化玻璃为黏结基材探究了HEA和DMG的含量对胶黏剂拉伸剪切强度的影响,并通过原位变温红外光谱测试、自修复实验及热失重分析验证了氨基甲酸肟酯键的热可逆性。结果表明:当活性稀释剂HEA的质量分数为30%(以胶黏剂总质量计)且DMG与PTMEG的物质的量之比为1.5∶1时,胶黏剂经UV辐照3 min后其拉伸剪切强度可达3.72 MPa。氨基甲酸肟酯键的热可逆性赋予了胶黏剂良好的热可拆卸性能,在150 °C下加热3 min即可实现胶黏剂与基材的分离。

     

  • 图  1  PreDMGx-PUA的合成路线

    Figure  1.  Synthetic route of PreDMGx-PUA

    图  2  UV固化胶黏剂的制备及热拆卸过程示意图

    Figure  2.  Schematic diagram of preparation and thermal detachment process of UV curable adhesive

    图  3  样品的红外光谱

    Figure  3.  FT-IR spectra of samples

    图  4  PreDMG1.0-PUA和PreBDO1.0-PUA的核磁共振氢谱图

    Figure  4.  1H-NMR spectra of PreDMG1.0-PUA and PreBDO1.0-PUA

    图  5  (a)光引发剂用量及(b)DMG含量对胶黏剂双键转化率的影响

    Figure  5.  Effect of (a) photoinitiator content and (b) DMG content on double bond conversion of adhesives

    图  6  胶黏剂的凝胶含量

    Figure  6.  Gel contents of adhesives

    图  7  (a)HEA含量和(b)DMG含量对胶黏剂拉伸剪切强度的影响

    Figure  7.  Effect of (a) HEA content and (b) DMG content on tensile shear strength of adhesives

    图  8  由DMG1.5-PUA胶黏剂黏接的两片玻璃基材承重1 kg时的数码照片

    Figure  8.  Digital photos of two glass sheets bonded by DMG1.5-PUA adhesive held a 1 kg weight

    图  9  胶黏剂结构中的氨基甲酸肟酯键的热可逆机理图

    Figure  9.  Schematic illustration of the thermal reversible mechanism of oxime-carbamate bond of adhesive

    图  10  DMG1.5-PUA胶膜的表面划痕在150 °C下热处理不同时间的自修复图片

    Figure  10.  Images of self-healing process of DMG1.5-PUA adhesive film with scratch on the surface by heating at 150 °C for different time

    图  11  DMG1.5-PUA胶黏剂的原位变温傅里叶变换红外光谱

    Figure  11.  In situ variable temperature FT-IR spectra of DMG1.5-PUA adhesive

    图  12  UV固化胶黏剂的(a)DSC和(b)TGA曲线

    Figure  12.  (a) DSC and (b) TGA curves of UV curing adhesive

    表  1  制备PUA预聚物的原料配比

    Table  1.   Formulas of preparation of PUA prepolymers

    Samplem (PTMEG) / gm (DMG) / gn (DMG) / n (PTMEG)m (BDO) / g
    PreDMG0.5-PUA301.1610.5
    PreDMG1.0-PUA202.3221.0
    PreDMG1.5-PUA103.4841.5
    PreBDO1.0-PUA201.802
    m (IPDI) = 13.337 g;m (HEA) = 4.643 g
    下载: 导出CSV
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出版历程
  • 收稿日期:  2021-09-08
  • 录用日期:  2021-12-17
  • 网络出版日期:  2021-12-30

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