Thermal stability and surface properties of acrylic PSAs modified by hexafluorobutyl acrylate |
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| Authors: | Yu Wang Jun Long Lu Shao Shicheng Qi |
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| Affiliation: | 1. Department of Polymer Science and Engineering, School of Chemical Engineering and Technology, Harbin Institute of Technology, Harbin, China;2. Key Laboratory of Carbon and Functional Polymer of Ministry of Education, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, China |
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| Abstract: | The article attempted to prepare special acrylic adhesives with preferable adhesion property and better thermal stability by introducing a fluorinated monomer. The FT-IR result showed that fluorinated monomers and acrylic monomers participated in copolymerization successfully. Furthermore, fluorinated groups performed good compatibility with acrylic resins, based on differential scanning calorimetry curve. According to the TG test under different heating rates, the activation energy of PSAs containing different content of fluorinated monomers was calculated to evaluate the effect of hexafluorobutyl acrylate on heat resistance of PSAs. Then, the findings of contact angle test revealed that the fluorinated PSAs also had rather lower surface energy than ordinary PSAs. Finally, the results of peel strength measurements indicated that the fluorinated PSAs demonstrated excellent adhesion property on various materials, especially low surface energy substrates. |
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| Keywords: | Hexafluorobutyl acrylate PSAs thermal stability surface property |
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