Study on the preparation and adhesion properties of fluorinated P(EA-co-HFBA) adhesives

IF 3.4 4区工程技术 Q2 POLYMER SCIENCE

Macromolecular Research Pub Date : 2025-03-18 DOI:10.1007/s13233-025-00392-9

Wen Jiang Zheng, Xiyuan Liu, Huilin Gao, Tingting Xu, Juncui Zhao, Xiaoxi Fan

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Abstract

Polytetrafluoroethylene (PTFE) materials have a low surface energy, which presents a challenge to bonding with conventional adhesives and consequently limits their application scope. This study explores the copolymerization of fluorinated hexafluorobutyl acrylate (HFBA) and ethyl acrylate (EA) to formulate fluorinated acrylate-based P(EA-co-HFBA) adhesives. The incorporation of the fluorinated component significantly lowers the surface energy of the adhesive, achieving levels comparable to those of PTFE. Optimization reveals that at a molar ratio of EA to HFBA of 1:3, the surface energy is reduced to 20.19 mN/m, facilitating effective wettability on PTFE surfaces. Notably, the peel strength of PTFE tape bonded with the fluorinated adhesive on a mirror-polished stainless-steel substrate reaches 13.8 N/25 mm. Furthermore, the presence of the fluorinated component enhances both the thermal stability and water resistance of the adhesive. The findings of this study offer valuable insights for the development of adhesives specifically designed for materials with low surface energy.

Graphic abstract

Polytetrafluoroethylene (PTFE) is difficult to bond due to its low surface energy. This study examines fluorinated acrylate-based P(EA-co-HFBA) adhesives, which attain a surface energy of 20.19 mN/m. With a 1:3 molar ratio of EA to HFBA, the adhesive achieves a peel strength of 13.8 N/25 mm on PTFE, along with improved thermal stability and water resistance.

Abstract Image

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氟化P（EA-co-HFBA）胶粘剂的制备及粘接性能研究

聚四氟乙烯（PTFE）材料具有较低的表面能，这对与传统粘合剂的粘合提出了挑战，从而限制了其应用范围。本研究探讨了氟化六氟丙烯酸丁酯（HFBA）与丙烯酸乙酯（EA）共聚制备氟化丙烯酸酯基P（EA-co-HFBA）胶粘剂。氟化成分的掺入显著降低了粘合剂的表面能，达到与聚四氟乙烯相当的水平。优化结果表明，当EA与HFBA的摩尔比为1:3时，表面能降低至20.19 mN/m，有利于PTFE表面的有效润湿性。值得注意的是，在镜面抛光的不锈钢基材上，与氟化粘合剂粘合的PTFE胶带的剥离强度达到13.8 N/25 mm。此外，氟化成分的存在增强了粘合剂的热稳定性和耐水性。本研究的发现为开发专门为低表面能材料设计的粘合剂提供了宝贵的见解。图形摘要聚四氟乙烯（PTFE）由于其表面能低而难以键合。本研究考察了氟化丙烯酸酯基P（EA-co-HFBA）粘合剂，其表面能达到20.19 mN/m。当EA与HFBA的摩尔比为1:3时，该粘合剂在PTFE上的剥离强度为13.8 N/25 mm，同时具有更好的热稳定性和耐水性。

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来源期刊

Macromolecular Research 工程技术-高分子科学

CiteScore

4.70

自引率

8.30%

发文量

100

审稿时长

1.3 months

期刊介绍： Original research on all aspects of polymer science, engineering and technology, including nanotechnology Presents original research articles on all aspects of polymer science, engineering and technology Coverage extends to such topics as nanotechnology, biotechnology and information technology The English-language journal of the Polymer Society of Korea Macromolecular Research is a scientific journal published monthly by the Polymer Society of Korea. Macromolecular Research publishes original researches on all aspects of polymer science, engineering, and technology as well as new emerging technologies using polymeric materials including nanotechnology, biotechnology, and information technology in forms of Articles, Communications, Notes, Reviews, and Feature articles.