pH tunable multifunctional cotton fabric with GO-PANI-Ag composite coating

IF 4.9 2区工程技术 Q1 MATERIALS SCIENCE, PAPER & WOOD

Cellulose Pub Date : 2024-08-28 DOI:10.1007/s10570-024-06138-7

Thirumalaisamy Suryaprabha, Paramasivam Selvamurugan, Tung Pham, Byungil Hwang, Mathur Gopalakrishnan Sethuraman

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引用次数: 0

Abstract

In recent years, wearable smart textiles with multifunctional properties have attracted great interest for use with a wide range of applications, including personal protection, sport, healthcare etc. In the present study, all-in-one multifunctional conductive hydrophobic coated cotton fabric with electromagnetic interference (EMI) shielding, joule heating, and antibacterial properties was prepared via in-situ chemical oxidative polymerization. A graphene oxide (GO)–polyaniline (PANI)–silver (Ag) composite was coated onto the cotton fabric, exhibiting a low electrical resistance of 24.3 Ω sq⁻¹ and strong hydrophobicity, with a water contact angle of ~ 139°. The high electrical conductivity of the composite coating resulted in excellent EMI shielding of ~ 52 dB in the X-band frequency region. Notably, the EMI shielding performance was tunable by simply changing the pH due to the acid- and alkali-sensitive nature of PANI. Furthermore, the fabricated conductive cotton fabric demonstrated excellent joule heating, achieving a temperature of 105.7 °C within 30 s at a voltage of 3.5 V. Additionally, in the presence of Ag, the cotton fabric exhibited excellent anti-bacterial properties against both Gram-positive (Staphylococcus aureus) and Gram-negative (Escherichia coli) bacteria.

Abstract Image

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具有 GO-PANI-Ag 复合涂层的 pH 值可调多功能棉织物

近年来，具有多功能特性的可穿戴智能纺织品在个人防护、运动、医疗保健等广泛领域的应用引起了人们的极大兴趣。本研究通过原位化学氧化聚合法制备了具有电磁干扰（EMI）屏蔽、焦耳热和抗菌性能的多功能导电疏水涂层棉织物。在棉织物上涂覆了氧化石墨烯（GO）-聚苯胺（PANI）-银（Ag）复合材料，显示出 24.3 Ω sq-1 的低电阻和强大的疏水性，水接触角约为 139°。复合涂层的高导电性使其在 X 波段频率区域的电磁干扰屏蔽能力达到约 52 dB。值得注意的是，由于 PANI 的酸碱敏感性，只需改变 pH 值就能调节 EMI 屏蔽性能。此外，制备的导电棉织物还具有出色的焦耳加热性能，在 3.5 V 电压下，30 秒内温度达到 105.7 ℃。此外，在 Ag 存在的情况下，棉织物对革兰氏阳性菌（金黄色葡萄球菌）和革兰氏阴性菌（大肠杆菌）均表现出优异的抗菌性能。

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来源期刊

Cellulose 工程技术-材料科学：纺织

CiteScore

10.10

自引率

10.50%

发文量

580

审稿时长

3-8 weeks

期刊介绍： Cellulose is an international journal devoted to the dissemination of research and scientific and technological progress in the field of cellulose and related naturally occurring polymers. The journal is concerned with the pure and applied science of cellulose and related materials, and also with the development of relevant new technologies. This includes the chemistry, biochemistry, physics and materials science of cellulose and its sources, including wood and other biomass resources, and their derivatives. Coverage extends to the conversion of these polymers and resources into manufactured goods, such as pulp, paper, textiles, and manufactured as well natural fibers, and to the chemistry of materials used in their processing. Cellulose publishes review articles, research papers, and technical notes.