材料科学
胶粘剂
热稳定性
高分子化学
光引发剂
丙烯酸酯
聚烯烃
甲基丙烯酸酯
粘附
润湿
化学工程
共聚物
聚合物
复合材料
单体
图层(电子)
工程类
作者
Agnieszka Kowalczyk,Krzysztof Kowalczyk,Jan Gruszecki,Tomasz J. Idzik,Jacek G. Sośnicki
出处
期刊:Polymers
[Multidisciplinary Digital Publishing Institute]
日期:2024-07-30
卷期号:16 (15): 2178-2178
标识
DOI:10.3390/polym16152178
摘要
A new type of UV-curable pressure-sensitive adhesive containing Si atoms (Si-PSAs) was prepared by a solution-free UV-initiated telomerization process of n-butyl acrylate, acrylic acid, methyl methacrylate, and 4-acrylooxybenzophenone using triethylsilane (TES) as a telogen and an acylphosphine oxide (APO) as a radical photoinitiator. Selected commercial adhesion promoters were tested as additives in the formulation of adhesive compositions, i.e., (i) an organic copolymer with polar groups (carboxyl and hydroxyl); (ii) a hydroxymetal-organic compound; and (iii) a quaternary ammonium salt and (iv) a chlorinated polyolefin. No fillers, crosslinking agents, or photoinitiators were used in the adhesive compositions. NMR techniques confirmed the incorporation of silicon atoms into the polyacrylate structure. The influence of adhesion promoters on the kinetics of the UV-crosslinking process of Si-PSAs was investigated by a photo-DSC technique. The obtained Si-PSAs were characterized by adhesion (to steel, glass, PMMA, and PE), tack, and cohesion at 20 °C. Finally, the wetting angle of Si-PSAs with water was checked and their thermal stability was proved (TGA). Unexpectedly, the quaternary ammonium salt had the most favorable effect on improving the thermal stability of Si-PSAs (302 °C) and adhesion to glass and PMMA. In contrast, Si-PSAs containing the hydroxymetal-organic compound showed excellent adhesion to steel.
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