通过小分子锚定对凯夫拉尔、诺梅克斯和VAR进行改性：赋予抗菌性能并提高防水性。

Kevlar, Nomex, and VAR Modification by Small Organic Molecules Anchoring: Transfusing Antibacterial Properties and Improving Water Repellency.

作者信息

Frousiou Efrosyni, Tonis Efstathios, Rotas Georgios, Pantelia Anna, Chalkidis Savvas G, Heliopoulos Nikolaos S, Kagkoura Antonia, Siamidis Dionysios, Galeou Angeliki, Prombona Anastasia, Stamatakis Kostas, Boukos Nikos, Vougioukalakis Georgios C

机构信息

Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, 15771 Athens, Greece.

Laboratory of Organic Chemistry, Department of Chemistry, University of Ioannina, 45110 Ioannina, Greece.

出版信息

Molecules. 2023 Jul 17;28(14):5465. doi: 10.3390/molecules28145465.

DOI:10.3390/molecules28145465

PMID:37513342

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10385662/

Abstract

The surface modification of fabrics composed of Kevlar, Nomex, or VAR was extensively investigated. Kevlar and Nomex are widely-utilized aramid materials, whereas VAR is a technical fabric comprising 64% viscose, 24% para-aramid (Kevlar), 10% polyamide, and 2% antistatic fibers. Both aramid materials and cellulose/viscose exhibit exceptional mechanical properties that render them valuable in a wide range of applications. For the herein studied modification of Kevlar, Nomex, and VAR, we used small organic molecules 3-allyl-5,5-dimethylhydantoin (ADMH) and 3-(acrylamidopropyl)trimethylammonium chloride (APTAC), which were anchored onto the materials under study via graft polymerization. By doing so, excellent antibacterial properties were induced in the three studied fabrics. Their water repellency was improved in most cases as well. Extensive characterization studies were conducted to probe the properties of the modified materials, employing Raman and FTIR spectroscopies, Scanning Electron Microscopy (SEM), and thermogravimetric analysis (TGA).

摘要

对由凯夫拉尔纤维、诺梅克斯纤维或VAR组成的织物进行了广泛的表面改性研究。凯夫拉尔纤维和诺梅克斯纤维是广泛使用的芳纶材料，而VAR是一种工业织物，由64%的粘胶、24%的对位芳纶（凯夫拉尔纤维）、10%的聚酰胺和2%的抗静电纤维组成。芳纶材料和纤维素/粘胶都具有出色的机械性能，这使其在广泛的应用中具有价值。对于本文所研究的凯夫拉尔纤维、诺梅克斯纤维和VAR的改性，我们使用了小分子3-烯丙基-5,5-二甲基乙内酰脲（ADMH）和3-（丙烯酰胺基丙基）三甲基氯化铵（APTAC），它们通过接枝聚合固定在所研究的材料上。通过这样做，在三种研究的织物中诱导出了优异的抗菌性能。在大多数情况下，它们的防水性也得到了改善。采用拉曼光谱和傅里叶变换红外光谱、扫描电子显微镜（SEM）和热重分析（TGA）进行了广泛的表征研究，以探究改性材料的性能。