Investigation of Bio-based Acrylate Reactive Diluents for UV-curable Electronic Packaging Polyurethane Adhesives

Yun-Tao Li; Shun-Peng Sun; Ya-Meng Jia; Shu-Sheng Li; Chuan-Yong Zong; Xu-Bao Jiang; Xiao-Li Zhu

doi:10.1007/s10118-026-3723-5

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Investigation of Bio-based Acrylate Reactive Diluents for UV-curable Electronic Packaging Polyurethane Adhesives

RESEARCH ARTICLE | Updated：2026-07-22

- Investigation of Bio-based Acrylate Reactive Diluents for UV-curable Electronic Packaging Polyurethane Adhesives
- Chinese Journal of Polymer Science Vol. 44, Pages: 1-13(2026)
- Affiliations：
  
  a.College of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
  b.National Engineering Research Center for Colloidal Materials & Key Laboratory of Special Functional Aggregated Materials of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
  c.Institute for UJN-SD Link New Material Research, Shandong Link Adhesive Co., Ltd., Jinan 251400, China
- Author bio：
  
  chm_liss@ujn.edu.cn (S.S.L.)
  chm_zhuxl@ujn.edu.cn (X.L.Z.)
- Funds：
- DOI：10.1007/s10118-026-3723-5
  CLC：
- Received：02 February 2026，
  
  Accepted：20 April 2026，
  
  Online First：22 July 2026，
  
  Published：2026-06
- Accepted：
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Li, Y. T.; Sun, S. P.; Jia, Y. M.; Li, S. S.; Zong, C. Y.; Jiang, X. B.; Zhu, X. L. Investigation of bio-based acrylate reactive diluents for UV-curable electronic packaging polyurethane adhesives. Chinese J. Polym. Sci. https://doi.org/10.1007/s10118-026-3723-5

Yun-Tao Li, Shun-Peng Sun, Ya-Meng Jia, et al. Investigation of Bio-based Acrylate Reactive Diluents for UV-curable Electronic Packaging Polyurethane Adhesives[J/OL]. Chinese Journal of Polymer Science, 2026, 441-13.
Li, Y. T.; Sun, S. P.; Jia, Y. M.; Li, S. S.; Zong, C. Y.; Jiang, X. B.; Zhu, X. L. Investigation of bio-based acrylate reactive diluents for UV-curable electronic packaging polyurethane adhesives. Chinese J. Polym. Sci. https://doi.org/10.1007/s10118-026-3723-5 DOI：

Yun-Tao Li, Shun-Peng Sun, Ya-Meng Jia, et al. Investigation of Bio-based Acrylate Reactive Diluents for UV-curable Electronic Packaging Polyurethane Adhesives[J/OL]. Chinese Journal of Polymer Science, 2026, 441-13. DOI： 10.1007/s10118-026-3723-5.

摘要

Abstract

Traditional acrylate reactive diluents

which are derived from fossil resources

are known to exhibit significant irritation and allergenic potential

leading to their prohibition in high-end electronics

particularly in wearable devices. To address these limitations

four bio-based acrylate reactive diluents (BRDs) were synthesized

via

the reaction of alcohols derived from renewable sources

piperitol

vanillin

eugenol

and isosorbide

with methacrylic anhydride. The viscosity of the synthesized BRDs and the

of their corresponding polymers were systematically evaluated and compared with those of the petroleum-based diluent isobornyl acrylate (IBOA). The BRDs were then blended with acrylate-terminated polyurethane (APU) to formulate a series of UV-curable polyurethane adhesives (APU-BRDs). The results suggest that BRDs effectively reduce the viscosity of APU. By selecting and combining BRDs

the bonding strength of APU-BRDs to polar substrates such as PC and glass can reach 20 MPa. Even for non-polar substrates like PE

the strength is close to 5 MPa. The values obtained in this study exceed those of adhesives prepared using the conventional petroleum-based diluent IBOA. Furthermore

the study explored the potential application of APU-BRDs in smart wearable devices

confirming their suitability for next-generation wearable technology.

关键词

Keywords

references

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