Self-healing UV-cured Adhesives Derived from Organosilicon-modified Glycerin Monostearate-based Polyurethane

ZHU Zengke; TANG Xiaoman; HUANG Chuolin; XUE Meng; FENG Enqi; YUAN Teng

doi:10.19554/j.cnki.1001-3563.2026.03.006

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Packaging Engineering ›› 2026, Vol. 47 ›› Issue (3) : 52-61. DOI: 10.19554/j.cnki.1001-3563.2026.03.006

Advanced Materials

Self-healing UV-cured Adhesives Derived from Organosilicon-modified Glycerin Monostearate-based Polyurethane

ZHU Zengke¹, TANG Xiaoman¹, HUANG Chuolin¹, XUE Meng², FENG Enqi¹, YUAN Teng^1,*

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Abstract

The work aims to prepare adhesives by modifying bio-based polyurethane with 3-(triethoxysilyl)propyl methacrylate to enhance their thermal stability, solvent resistance, shear strength, and other properties. The bio-based polyurethane was successfully synthesized with glycerin monostearate (GMS) polyol and the diamine containing dynamic imine bonds (T-NH) as raw materials. The polyurethane was then modified by incorporating varying amounts of 3-(triethoxysilyl)propyl methacrylate. Tests were conducted to evaluate its thermal stability, solvent resistance, self-healing performance, and other properties and investigate the effect of 3-(triethoxysilyl)propyl methacrylate content on these characteristics. As the content of 3-(triethoxysilyl)propyl methacrylate increased, the mechanical properties, thermal stability, solvent resistance, and shear strength of the adhesive continuously improved, while the self-healing effect gradually decreased. The optimal overall performance was achieved with an addition of 20 wt%. The UV-cured adhesive prepared from silicone-modified GMS-based polyurethane exhibits excellent self-healing functionality. After modification, the heat resistance, solvent resistance, and tensile strength of the adhesive are enhanced. The adhesive demonstrates significant potential for applications in fields such as eco-friendly packaging, furniture, and construction.

Key words

glycerin monostearate / imine bond / UV-cured / self-healing / adhesive

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ZHU Zengke, TANG Xiaoman, HUANG Chuolin, XUE Meng, FENG Enqi, YUAN Teng. Self-healing UV-cured Adhesives Derived from Organosilicon-modified Glycerin Monostearate-based Polyurethane[J]. Packaging Engineering. 2026, 47(3): 52-61 https://doi.org/10.19554/j.cnki.1001-3563.2026.03.006

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