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Peer-reviewedCC BYPolymers

AAEM/ADH Self-Crosslinking Waterborne Polyurethane–Acrylate Binder for High-Adhesion Waterborne Inks on PET Films

  • Junqing Xi1,2
  • Chenglong Jiao1
  • Chao Liu1,2
  • Shixiong Sun1,2
  • Benbo Zhao1,2
  • Yunjun Luo3
  1. 1School of Chemistry and Chemical Engineering, North University of China, Taiyuan 030051, China
  2. 2Dezhou Industrial Technology Research Institute of North University of China, Dezhou 253034, China
  3. 3School of Materials Science and Technology, Beijing Institute of Technology, Beijing 100081, China
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Abstract

To address the poor adhesion of waterborne inks to polyethylene terephthalate (PET) films, a low-temperature ketone–hydrazide self-crosslinking system based on 2-(acetoacetoxy)ethyl methacrylate (AAEM) and adipic acid dihydrazide (ADH) was incorporated into a waterborne polyurethane–acrylate emulsion. Self-crosslinking waterborne polyurethane–acrylate emulsions (AWPUAs) with different AAEM contents were prepared and subsequently used as binders in waterborne inks for PET films. The results showed that increasing the AAEM content reduced the water absorption of the latex films while increasing their water contact angle and tensile strength. Meanwhile, the adhesion of the resulting waterborne inks to corona-treated PET films increased with increasing AAEM content, together with a substantial enhancement in re-solubility. At an AAEM content of 7 wt%, the AWPUA emulsion exhibited good colloidal stability, and the corresponding waterborne ink achieved nearly 100% adhesion while maintaining good re-solubility. These findings demonstrate that AAEM/ADH ketone–hydrazide self-crosslinking modification provides an effective approach for improving the film properties of waterborne polyurethane–acrylate emulsions and the application performance of waterborne inks on PET films.

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Cite

BibTeXRIS
BibTeX
@article{xi2026aaemadh,
  title = {{AAEM/ADH Self-Crosslinking Waterborne Polyurethane–Acrylate Binder for High-Adhesion Waterborne Inks on PET Films}},
  author = {Junqing Xi and Chenglong Jiao and Chao Liu and Shixiong Sun and Benbo Zhao and Yunjun Luo},
  journal = {Polymers},
  year = {2026},
  month = oct,
  doi = {10.3390/polym18192453},
  url = {https://europepmc.org/article/PMC/PMC13666957},
  note = {CC BY},
}
RIS
TY  - JOUR
TI  - AAEM/ADH Self-Crosslinking Waterborne Polyurethane–Acrylate Binder for High-Adhesion Waterborne Inks on PET Films
AU  - Junqing Xi
AU  - Chenglong Jiao
AU  - Chao Liu
AU  - Shixiong Sun
AU  - Benbo Zhao
AU  - Yunjun Luo
PY  - 2026
DA  - 2026/10/01
JO  - Polymers
DO  - 10.3390/polym18192453
UR  - https://europepmc.org/article/PMC/PMC13666957
AB  - To address the poor adhesion of waterborne inks to polyethylene terephthalate (PET) films, a low-temperature ketone–hydrazide self-crosslinking system based on 2-(acetoacetoxy)ethyl methacrylate (AAEM) and adipic acid dihydrazide (ADH) was incorporated into a waterborne polyurethane–acrylate emulsion. Self-crosslinking waterborne polyurethane–acrylate emulsions (AWPUAs) with different AAEM contents were prepared and subsequently used as binders in waterborne inks for PET films. The results showed that increasing the AAEM content reduced the water absorption of the latex films while increasing their water contact angle and tensile strength. Meanwhile, the adhesion of the resulting waterborne inks to corona-treated PET films increased with increasing AAEM content, together with a substantial enhancement in re-solubility. At an AAEM content of 7 wt%, the AWPUA emulsion exhibited good colloidal stability, and the corresponding waterborne ink achieved nearly 100% adhesion while maintaining good re-solubility. These findings demonstrate that AAEM/ADH ketone–hydrazide self-crosslinking modification provides an effective approach for improving the film properties of waterborne polyurethane–acrylate emulsions and the application performance of waterborne inks on PET films.
SN  - 2073-4360
ER  -