A void surface flame retardant strategy for polymeric polyHIPEs
Chen Zhang
Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, China
Contribution: Data curation (lead), Formal analysis (lead), Investigation (lead), Methodology (lead), Writing - original draft (lead)
Search for more papers by this authorRuiyun Cai
Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, China
Contribution: Formal analysis (supporting), Investigation (supporting), Methodology (equal)
Search for more papers by this authorChuanbang Xu
Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, China
Contribution: Data curation (supporting), Investigation (supporting), Software (equal)
Search for more papers by this authorHongwei Xia
Wuxi New Hongtai Electric Technology Co., Ltd., Wuxi, China
Contribution: Project administration (supporting), Writing - review & editing (supporting)
Search for more papers by this authorCorresponding Author
Yun Zhu
Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, China
Correspondence
Shengmiao Zhang and Yun Zhu, Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.
Email: [email protected] and [email protected]
Contribution: Writing - review & editing (lead), Supervision (lead)
Search for more papers by this authorCorresponding Author
Shengmiao Zhang
Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, China
Wuxi New Hongtai Electric Technology Co., Ltd., Wuxi, China
Correspondence
Shengmiao Zhang and Yun Zhu, Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.
Email: [email protected] and [email protected]
Contribution: Conceptualization (lead), Funding acquisition (lead), Investigation (supporting), Methodology (lead), Project administration (lead), Supervision (lead), Writing - review & editing (lead)
Search for more papers by this authorChen Zhang
Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, China
Contribution: Data curation (lead), Formal analysis (lead), Investigation (lead), Methodology (lead), Writing - original draft (lead)
Search for more papers by this authorRuiyun Cai
Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, China
Contribution: Formal analysis (supporting), Investigation (supporting), Methodology (equal)
Search for more papers by this authorChuanbang Xu
Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, China
Contribution: Data curation (supporting), Investigation (supporting), Software (equal)
Search for more papers by this authorHongwei Xia
Wuxi New Hongtai Electric Technology Co., Ltd., Wuxi, China
Contribution: Project administration (supporting), Writing - review & editing (supporting)
Search for more papers by this authorCorresponding Author
Yun Zhu
Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, China
Correspondence
Shengmiao Zhang and Yun Zhu, Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.
Email: [email protected] and [email protected]
Contribution: Writing - review & editing (lead), Supervision (lead)
Search for more papers by this authorCorresponding Author
Shengmiao Zhang
Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, China
Wuxi New Hongtai Electric Technology Co., Ltd., Wuxi, China
Correspondence
Shengmiao Zhang and Yun Zhu, Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.
Email: [email protected] and [email protected]
Contribution: Conceptualization (lead), Funding acquisition (lead), Investigation (supporting), Methodology (lead), Project administration (lead), Supervision (lead), Writing - review & editing (lead)
Search for more papers by this authorFunding information: National Natural Science Foundation of China, Grant/Award Number: 51773059; Postdoctoral Research Foundation of China, Grant/Award Number: 2020M681734
Abstract
Effective flame retardant strategy for open-cell foam (e.g., polyHIPE) remains of a great challenge. Herein, a void surface flame retardant strategy for polyHIPE was presented. An open-cell polystyrene (PS) polyHIPE was fabricated through an emulsion-templating technique. Polyphosphazene (PSZ), a highly efficient flame retardant polymer, was then in situ fabricated and covalently attached to the void surface of the foam to be a uniform flame retardant protective layer, while the open-cell structure of the foam was perfectly preserved. Compared with the pristine PS polyHIPE, the PSZ modified one had significantly improved thermal stability (char residues yield at 800°C increased from 3.36 to 16.53 wt%) and mechanical properties (Young's modulus increased by 2.6 times); the values of average heat release rate and total heat release of combustion were reduced by 62.36% and 41.57%, respectively. While, the value of limiting oxygen index was increased from 17.39% to 19.75%, owing to the combined action of condensed phase flame retardant and gas phase flame retardant. These results indicate that the in situ surface modification strategy is effective for improving the flame retardancy of highly interconnected polymer foams.
Open Research
DATA AVAILABILITY STATEMENT
Data sharing is not applicable to this article as no new data were created or analyzed in this study.
Supporting Information
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| app53397-sup-0001-Supinfo.docxWord 2007 document , 400.2 KB | Appendix S1: Supporting Information |
Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.
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