Greener tool for synthesis and characterization of textile fabric's coatings for good flame retardancy, antibacterial and reinforcement properties

IF 3 3区 工程技术 Q2 CHEMISTRY, ANALYTICAL Journal of Thermal Analysis and Calorimetry Pub Date : 2024-08-12 DOI:10.1007/s10973-024-13524-7
Nour F. Attia, Heba Ameen, Ibrahim E. El-Sayed, Ahmed A. Galhoum, Jiayu Xin, Xingmei Lu
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Abstract

Green and facile route was employed for development of smart flame-retardant, antibacterial and reinforced textile fabric's coatings. The multifunctional coatings were fabricated from sustainable chitosan functionalized via one pot method with α-aminophosphonates with different groups (methyl and phenyl groups). Phenyl- and methyl-based α-aminophosphonates were grafted on chitosan chains individually. Additionally, magnetic chitosan-Fe3O4 nanoparticles functionalized α-aminophosphonates-based phenyl moiety were also prepared. Moreover, tetra-n-butylammonium hexafluorophosphate was also dispersed in coating dispersion. The different prepared functionated chitosan was then exploited as efficient flame-retardant, reinforced and antibacterial-based multifunctional coatings for cotton fabrics. Different mass loadings of methyl- and phenyl-based functionalized chitosan and magnetic chitosan were dispersed in chitosan solution and then coated on cotton surface. The influence of mass loading and different side groups was studied. Flammability, tensile strength and antibacterial properties of developed cotton fabrics were evaluated. The flammability of coated cotton fabrics was strongly improved achieving reduction in rate of burning by 48% compared to uncoated one. This is in addition to LOI value of 23.5% compared to 18% for uncoated fabric. This is due to the influence of organic phosphate in coating layer which stimulates the formation of protective char layer. The tensile strength of coated fabrics was improved recording 29% enhancement compared to uncoated one. Moreover, the developed coating layer strongly inhibits the growth of well-known bacterial strains Escherichia coli and Staphylococcus aureus, achieving clear antibacterial inhibition zones of 16.7 and 23.6 mm, respectively. Additionally, the flame retardancy mechanism was proposed and elucidated.

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更环保的工具,用于合成和表征具有良好阻燃、抗菌和加固性能的纺织品涂层
采用绿色、简便的方法开发了智能阻燃、抗菌和增强织物涂层。这种多功能涂层由可持续壳聚糖通过一锅法与不同基团(甲基和苯基)的α-氨基膦酸盐功能化而成。苯基和甲基α-氨基膦酸盐分别接枝在壳聚糖链上。此外,还制备了以苯基为基础的α-氨基膦酸盐功能化壳聚糖-Fe3O4 纳米磁性粒子。此外,六氟磷酸四正丁基铵也被分散在涂层分散液中。制备出的不同功能化壳聚糖被用作棉织物的高效阻燃、增强和抗菌多功能涂层。不同质量负载的甲基和苯基功能化壳聚糖以及磁性壳聚糖分散在壳聚糖溶液中,然后涂布在棉织物表面。研究了质量负载和不同侧基的影响。对开发的棉织物的可燃性、抗拉强度和抗菌性能进行了评估。与未涂布的棉织物相比,涂布棉织物的可燃性大大提高,燃烧率降低了 48%。此外,LOI 值为 23.5%,而未涂层织物的 LOI 值为 18%。这是由于涂层中的有机磷酸盐促进了保护炭层的形成。与未涂层织物相比,涂层织物的拉伸强度提高了 29%。此外,开发的涂层还能强烈抑制知名细菌大肠杆菌和金黄色葡萄球菌的生长,抗菌抑菌区分别达到 16.7 毫米和 23.6 毫米。此外,还提出并阐明了阻燃机理。
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来源期刊
CiteScore
8.50
自引率
9.10%
发文量
577
审稿时长
3.8 months
期刊介绍: Journal of Thermal Analysis and Calorimetry is a fully peer reviewed journal publishing high quality papers covering all aspects of thermal analysis, calorimetry, and experimental thermodynamics. The journal publishes regular and special issues in twelve issues every year. The following types of papers are published: Original Research Papers, Short Communications, Reviews, Modern Instruments, Events and Book reviews. The subjects covered are: thermogravimetry, derivative thermogravimetry, differential thermal analysis, thermodilatometry, differential scanning calorimetry of all types, non-scanning calorimetry of all types, thermometry, evolved gas analysis, thermomechanical analysis, emanation thermal analysis, thermal conductivity, multiple techniques, and miscellaneous thermal methods (including the combination of the thermal method with various instrumental techniques), theory and instrumentation for thermal analysis and calorimetry.
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