高校化学工程学报2025，Vol.39Issue(5)：890-899,10.DOI:10.3969/j.issn.1003-9015.2025.05.011
硅烷交联水性聚丙烯酸酯压敏胶的合成、结构和性能
Synthesis,structure and properties of silane crosslinked water-borne polyacrylate pressure-sensitive adhesives
颜柯清 1余大洋 2包永忠3
作者信息
- 1. 浙江大学化学工程与生物工程学院,浙江 杭州 310027
- 2. 浙江大学衢州研究院,浙江衢州 324004
- 3. 浙江大学化学工程与生物工程学院,浙江 杭州 310027||浙江大学衢州研究院,浙江衢州 324004
- 折叠
摘要
Abstract
To endure repeated folding without the adhesion failure,yielding and fracture,polyacrylate pressure-sensitive adhesives(PSAs)used in flexible displays should possess superior adhesion characteristics along with fa-vorable relaxation and recovery properties.In this study,water-borne polyacrylate PSAs with different mass frac-tions of methacryloxypropyl trimethoxylsilane(MPS)were prepared via semi-continuous emulsion polymerization,and effects of the mass fraction of MPS on the molecular structure,viscoelastic and mechanical properties of polyac-rylate PSAs were investigated.It was found that silane crosslinking could be proceeded in the polymerization and the film forming process.The gel content of PSA was increased,and average molecular weights of sol and gel be-tween crosslinking sites were decreased as the mass fraction of MPS increased.PSA with MPS mass fraction of 0.2％exhibited optimal comprehensive performances:a strain recovery rate of 83％under significant deformations,a stress relaxation rate of 72％,a peel strength of 8.9 N(25 mm)-1 against polished steel surfaces,excellent trans-mittance coupled with low haze,thereby fully complying with the stringent optical display requirements.The work provides an environmentally benign and efficient process route to synthesize PSAs for flexible display applications.关键词
聚丙烯酸酯压敏胶/3-(甲基丙烯酰氧)丙基三甲氧基硅烷/乳液聚合/交联/力学性能Key words
polyacrylate pressure-sensitive adhesive/methacryloxypropyl trimethoxylsilane/emulsion polymeri-zation/crosslinking/mechanical property分类
化学工程引用本文复制引用
颜柯清,余大洋,包永忠..硅烷交联水性聚丙烯酸酯压敏胶的合成、结构和性能[J].高校化学工程学报,2025,39(5):890-899,10.
