Phosphonitrile hybrid metal-polyphenol network: An effective strategy for developing functional PVA composites with flame retardancy, antibacterial and UV resistance

IF 8.6 2区工程技术 Q1 ENERGY & FUELS

Sustainable Materials and Technologies Pub Date : 2024-07-29 DOI:10.1016/j.susmat.2024.e01070

Wei Tan , Chunlong Zuo , Yin Tian , Lu Bai , Lina Jiang , Jieyun Zhao , Xiaoyu Liu , Yuanlin Ren , Xiaohui Liu

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Abstract

The white pollution caused by non-degradable plastics poses a serious threat to human society and the environment, thus developing biodegradable material is urgent. In this work, a novel phosphonitrile hybrid metal-polyphenol network was constructed and used for the preparation of flame retardant, UV resistant and antibacterial multifunctional polyvinyl alcohol composite (PVA@HCPD-Ag). The limiting oxygen index (LOI) value of PVA@HCPD-Ag was improved to 33.5%, while the peak heat release rate (PHRR) and total heat release (THR) decreased by 35.62% and 47.76%. Besides, the ultraviolet protection factor (UPF) value of PVA@HCPD-Ag was significantly improved from 4.63 of the original PVA to 482.79, while the tensile strength was increased by 10.23%. Furthermore, the inhibition efficacy of PVA@HCPD-Ag for E. coli and S. aureus was up to 98.12% and 99.99%. This work explored the synergistic flame retardant effect of in-situ reduced Ag⁰ and phosphonitrile crosslinked polyphenol network and proposed an advanced strategy for developing high value-added functionalized PVA materials.

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磷腈杂化金属-多酚网络：开发阻燃、抗菌和抗紫外线功能性 PVA 复合材料的有效策略

不可降解塑料造成的白色污染对人类社会和环境构成了严重威胁，因此开发可生物降解材料迫在眉睫。本研究构建了一种新型磷腈杂化金属-多酚网络，并将其用于制备阻燃、抗紫外线和抗菌的多功能聚乙烯醇复合材料（PVA@HCPD-Ag）。PVA@HCPD-Ag的极限氧指数（LOI）值提高到33.5%，峰值热释放率（PRR）和总热释放率（THR）分别降低了35.62%和47.76%。此外，PVA@HCPD-Ag 的紫外线防护系数（UPF）值由原来 PVA 的 4.63 显著提高到 482.79，抗拉强度提高了 10.23%。此外，PVA@HCPD-Ag 对和的阻燃率分别高达 98.12% 和 99.99%。该研究探讨了原位还原Ag与膦腈交联多酚网络的协同阻燃效应，为开发高附加值的功能化PVA材料提出了一种先进的策略。

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来源期刊

Sustainable Materials and Technologies Energy-Renewable Energy, Sustainability and the Environment

CiteScore

13.40

自引率

4.20%

发文量

158

审稿时长

45 days

期刊介绍： Sustainable Materials and Technologies (SM&T), an international, cross-disciplinary, fully open access journal published by Elsevier, focuses on original full-length research articles and reviews. It covers applied or fundamental science of nano-, micro-, meso-, and macro-scale aspects of materials and technologies for sustainable development. SM&T gives special attention to contributions that bridge the knowledge gap between materials and system designs.