多模式抗菌、防火、电磁屏蔽的多功能柔性聚氨酯泡沫

IF 8.1 2区材料科学 Q1 ENGINEERING, MANUFACTURING

Composites Part A: Applied Science and Manufacturing Pub Date : 2025-07-03 DOI:10.1016/j.compositesa.2025.109159

Ruiying Wu , Pengfei Jia , Pengfei Sun , Fuhao Yu , Jinhu Li , Rucui Yu , Bibo Wang , Yuan Hu

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引用次数: 0

摘要

本研究采用双键阻燃单体、疏水单体和抗菌单体的自由基聚合法制备了多功能高分子季铵盐（QAS）有机硅涂料。然后，在柔性聚氨酯泡沫（FPUF）表面原位生长硫化铜（CuS），外表面封装QAS有机硅涂层。由于CuS和聚多巴胺（PDA）优异的光吸收和光热转换效率，进一步提高了多功能FPUF的光热杀菌性能。多功能FPUF表面也显示出明显的抗菌活性，对金黄色葡萄球菌和大肠杆菌的抗菌率分别达到100%和98%。此外，多功能FPUF的峰值放热率和总放热率分别降低了84.3%和54.7%。同时，由于cu纳米颗粒的导电性，FPUF@P@CuS@QAS的电磁干扰屏蔽效能达到44.1 dB。由于QAS有机硅涂层的封装，提高了FPUF@P@CuS@QAS的机械稳定性和疏水性。因此，该研究为多功能FPUF提供了一条有前途的途径，可用于现代医疗电子产品和健康EMI屏蔽材料的清洁生产。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Multifunctional flexible polyurethane foam with multi-mode antibacterial, fireproof and electromagnetic shielding

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Multifunctional flexible polyurethane foam with multi-mode antibacterial, fireproof and electromagnetic shielding

This study prepared a multifunctional polymer quaternary ammonium salt (QAS) silicone coating by free radical polymerization of double bond flame retardant monomer, hydrophobic monomer, and antibacterial monomer. Then, sulfide copper (CuS) was in situ grown on the surface of flexible polyurethane foam (FPUF), and QAS silicone coating was encapsulated at the outer surface. Due to the outstanding light absorption and photothermal conversion efficiency of CuS and polydopamine (PDA), photothermal sterilization property of the multifunctional FPUF was further improved. The multifunctional FPUF surface also showed significant antibacterial activity, achieving 100 % and 98 % anti-bactericidal rate for Staphylococcus aureus and Escherichia coli. In addition, the peak heat release rate and total heat release were reduced by 84.3 % and 54.7 % for multifunctional FPUF. Meanwhile, due to the conductivity of CuS nanoparticles, the electromagnetic interference shielding effectiveness of FPUF@P@CuS@QAS reached 44.1 dB. Thanks to encapsulation of QAS silicone coating, the mechanical stability and hydrophobicity of FPUF@P@CuS@QAS were improved. Therefore, this study provides a promising approach to the mulrifunctional FPUF, which can be used for the clean production of modern medical electronic products and health EMI shielding materials.

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来源期刊

Composites Part A: Applied Science and Manufacturing 工程技术-材料科学：复合

CiteScore

15.20

自引率

5.70%

发文量

492

审稿时长

30 days

期刊介绍： Composites Part A: Applied Science and Manufacturing is a comprehensive journal that publishes original research papers, review articles, case studies, short communications, and letters covering various aspects of composite materials science and technology. This includes fibrous and particulate reinforcements in polymeric, metallic, and ceramic matrices, as well as 'natural' composites like wood and biological materials. The journal addresses topics such as properties, design, and manufacture of reinforcing fibers and particles, novel architectures and concepts, multifunctional composites, advancements in fabrication and processing, manufacturing science, process modeling, experimental mechanics, microstructural characterization, interfaces, prediction and measurement of mechanical, physical, and chemical behavior, and performance in service. Additionally, articles on economic and commercial aspects, design, and case studies are welcomed. All submissions undergo rigorous peer review to ensure they contribute significantly and innovatively, maintaining high standards for content and presentation. The editorial team aims to expedite the review process for prompt publication.