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

IF 8.6 2区 工程技术 Q1 ENERGY & FUELS
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引用次数: 0

摘要

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。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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

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

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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来源期刊
Sustainable Materials and Technologies
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.
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