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      Industrial Preparation of Self-Lubricating Polyurethane via Direct Fluorination with Gaseous Fluorine

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      ACS Omega
      American Chemical Society

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          Abstract

          Fluorination modification is an effective way to improve the friction property of a polymer; however, current preparation of fluorine-containing polymers is limited by the high cost and complex synthesis. Here, an industrial fluorination strategy with gaseous fluorine (F 2) to achieve fluorine enrichment on the surface of a polyurethane (PU) sheet was demonstrated. Benefiting from the high reactivity and strong diffusion of F 2 gas, the as-prepared PU sample was characterized by the rich fluorinated surface with the slightly fluorinated bulk. As a result, the fluorinated PU combined the excellent mechanical properties of pristine PU with the unique function of the fluorine-containing polymer, where the fluorinated surface may function as a robust lubricating layer, contributing to remarkable promotion of friction property while maintaining the mechanical strength unchanged. The friction coefficient decreased to 0.5 at the dry condition and 0.1 at the wet condition from the initial value of 1 and 0.45 for the pristine PU sample. The surface manipulation via direct fluorination offers great opportunities to tailor the friction property while keeping the mechanical strength unchanged.

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          Most cited references33

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          Thermal stability and flame retardancy of polyurethanes

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            Structural engineering of polyurethane coatings for high performance applications

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              Mechanically robust, self-healing superhydrophobic anti-icing coatings based on a novel fluorinated polyurethane synthesized by a two-step thiol click reaction

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                Author and article information

                Journal
                ACS Omega
                ACS Omega
                ao
                acsodf
                ACS Omega
                American Chemical Society
                2470-1343
                02 August 2022
                16 August 2022
                : 7
                : 32
                : 28388-28395
                Affiliations
                []Institute of Noise and Vibration, Naval University of Engineering , Wuhan430033, China
                []Key Laboratory on Ship Vibration & Noise , Wuhan430033, China
                [§ ]State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University , Chengdu610065, China
                Author notes
                [* ]Email: poly.nie@ 123456gmail.com . Fax: +86-28-85405133. Phone: +86-28-85405133.
                Author information
                https://orcid.org/0000-0001-8386-7547
                Article
                10.1021/acsomega.2c03019
                9386838
                31a74bec-ee3c-4fbc-bd2f-70aafed7b769
                © 2022 The Authors. Published by American Chemical Society

                Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works ( https://creativecommons.org/licenses/by-nc-nd/4.0/).

                History
                : 15 May 2022
                : 20 July 2022
                Funding
                Funded by: National Natural Science Foundation of China, doi 10.13039/501100001809;
                Award ID: 52171323
                Funded by: State Key Laboratory of Polymer Materials Engineering, doi 10.13039/501100011263;
                Award ID: sklpme2019-2-11
                Categories
                Article
                Custom metadata
                ao2c03019
                ao2c03019

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