Nonwoven fabrics with camouflage and antibacterial properties

IF 6.3 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Applied Surface Science Pub Date : 2025-06-18 DOI:10.1016/j.apsusc.2025.163856

Bartosz Kopyciński, Ewa Langer, Dorota Kowalczyk, Anna Baranowska-Korczyc, Mariola Bodzek-Kochel, Małgorzata Cieślak

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Abstract

Recurring epidemics underscore the need for the development of new military material with masking and antibacterial properties. To develop lightweight camouflage coverings with antibacterial functionality, we designed composites based on two different spunlace nonwoven structures made of hydrophobic polyester fibers and their blends with hydrophilic cellulose fibers. Both nonwoven fabrics were coated with developed green (Gr), brown (Br) and black (Bl) waterborne paints. The re-emission coefficient (R) values for the camouflage coatings are between the upper and lower R limits specified in the defense standard NO-80-A200:2021. Antibacterial functionality was achieved by enriching the camouflage paint formulas with the addition of 2.5 wt% AgNPs@SiO₂ modifier. The values of antibacterial activity (A) vary depending on the type of nonwoven fabric, paint color and bacteria. For modified polyester nonwoven fabric, the A values for color Gr, Br and Bl are 4.02, 2.87 and 4.18 (Staphylococcus aureus) and 6.88, 4.46 and 6.89 (Klebsiella pneumoniae), respectively, and for cellulose/polyester nonwoven fabric, they are 2.25, 2.21 and 5.43 and 6.91, 4.90 and 6.93, respectively. The surface of the coatings is hydrophobic with a water contact angle of 104.5 to 118.5°. These materials serve multiple technical applications that require camouflage and protection against microorganisms.

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具有伪装和抗菌性能的非织造布

反复出现的流行病强调需要开发具有掩蔽和抗菌性能的新型军用材料。为了开发具有抗菌功能的轻型伪装覆盖物，我们设计了基于两种不同水刺非织造结构的复合材料，这些结构由疏水聚酯纤维及其与亲水性纤维素纤维共混而成。两种非织造布都涂上了绿色（Gr）、棕色（Br）和黑色（Bl）水性涂料。伪装涂层的再发射系数(R)值介于国防标准NO-80-A200:2021中规定的上限和下限之间。抗菌功能是通过添加2.5 wt% AgNPs@SiO2改性剂来丰富伪装漆配方来实现的。抗菌活性(A)的值因非织造布的种类、油漆颜色和细菌而异。改性聚酯非织造布颜色Gr、Br、Bl的A值分别为4.02、2.87、4.18（金黄色葡萄球菌）和6.88、4.46、6.89（肺炎克雷伯菌），纤维素/聚酯非织造布颜色Gr、Br、Bl的A值分别为2.25、2.21、5.43和6.91、4.90、6.93。涂层表面疏水，水接触角为104.5 ~ 118.5°。这些材料用于多种需要伪装和防止微生物的技术应用。

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来源期刊

Applied Surface Science 工程技术-材料科学：膜

CiteScore

12.50

自引率

7.50%

发文量

3393

审稿时长

67 days

期刊介绍： Applied Surface Science covers topics contributing to a better understanding of surfaces, interfaces, nanostructures and their applications. The journal is concerned with scientific research on the atomic and molecular level of material properties determined with specific surface analytical techniques and/or computational methods, as well as the processing of such structures.