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Polymers (Basel). 2018 May 6;10(5). pii: E503. doi: 10.3390/polym10050503.

Grafting Polytetrafluoroethylene Micropowder via in Situ Electron Beam Irradiation-Induced Polymerization.

Author information

1
Key Laboratory for Material Chemistry of Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China. whitley.wang@outlook.com.
2
Key Laboratory for Material Chemistry of Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China. wenyf.chem@foxmail.com.
3
Key Laboratory for Material Chemistry of Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China. hypeng@mail.hust.edu.cn.
4
National Anti-counterfeit Engineering Research Center, Huazhong University of Science and Technology, Wuhan 430074, China. zhengchengfu320@sohu.com.
5
School of Nuclear and Chemistry & Biology, Hubei University of Science and Technology, Xianning 437100, China. frank78929@163.com.
6
School of Nuclear and Chemistry & Biology, Hubei University of Science and Technology, Xianning 437100, China. ws1203@163.com.
7
School of Nuclear and Chemistry & Biology, Hubei University of Science and Technology, Xianning 437100, China. sunshaofa@hbust.edu.cn.
8
Key Laboratory for Material Chemistry of Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China. xlxie@mail.hust.edu.cn.
9
National Anti-counterfeit Engineering Research Center, Huazhong University of Science and Technology, Wuhan 430074, China. xlxie@mail.hust.edu.cn.
10
Key Laboratory for Material Chemistry of Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China. xpzhou@mail.hust.edu.cn.

Abstract

Decreasing the surface energy of polyacrylate-based materials is important especially in embossed holography, but current solutions typically involve high-cost synthesis or encounter compatibility problems. Herein, we utilize the grafting of polytetrafluoroethylene (PTFE) micropowder with poly (methyl methacrylate) (PMMA). The grafting reaction is implemented via in situ electron beam irradiation-induced polymerization in the presence of fluorinated surfactants, generating PMMA grafted PTFE micropowder (PMMA⁻g⁻PTFE). The optimal degree of grafting (DG) is 17.8%. With the incorporation of PMMA⁻g⁻PTFE, the interfacial interaction between polyacrylate and PTFE is greatly improved, giving rise to uniform polyacrylate/PMMA⁻g⁻PTFE composites with a low surface energy. For instance, the loading content of PMMA⁻g⁻PTFE in polyacrylate is up to 16 wt %, leading to an increase of more than 20 degrees in the water contact angle compared to the pristine sample. This research paves a way to generate new polyacrylate-based films for embossed holography.

KEYWORDS:

electron beam irradiation-induced grafting; interfacial interaction; methyl methacrylate; polytetrafluoroethylene

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