Protein-tannin interactions towards fabricating flame-retardant, UV-resistance, antibacterial and mechanical-reinforced PA66 fabric

IF 6.5 2区材料科学 Q1 CHEMISTRY, APPLIED Progress in Organic Coatings Pub Date : 2024-09-14 DOI:10.1016/j.porgcoat.2024.108798

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Abstract

The “Protein-polyphenol interactions” is a hot research topic in the field of interaction between biological macromolecules. Strong interactions between biomass polyphenolic tannins and proteins can be generated through covalent and non-covalent bonds. Inspired by this, keratin (Ker) and oxidized tannin (TA) was co-deposited on polyamide 66 (PA66) fabric to fabricate OTA/Ker coated PA66 fabric (PA66@OTA/Ker), which was then chelated with Fe³⁺ to prepare fire resistance and anti-dripping PA66 fabric (PA66@OTA/Ker@Fe). The results showed that the total heat release rate (THR), peak heat release rate (pHRR) and total smoke production (TSP) of PA66@OTA/Ker@Fe were reduced by 51 %, 57 % and 52 %, respectively. PA66@OTA/Ker@Fe had a residue char of 21.6 % at 800 °C under N₂ atmosphere. In addition, the LOI of PA66@OTA/Ker@Fe increased from 20.5 % of the control sample to 28.5 % and reached a UL-94 V-0 rating. Besides, PA66@OTA/Ker@Fe exhibited excellent UV resistance, good mechanical and anti-bacterial properties. This work provides an eco-friendly strategy for developing multifunctional PA66 fabrics.

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蛋白质与单宁的相互作用，用于制造阻燃、抗紫外线、抗菌和机械加固的 PA66 织物

"蛋白质-多酚相互作用 "是生物大分子相互作用领域的一个热门研究课题。生物质多酚单宁酸与蛋白质之间可以通过共价键和非共价键产生强烈的相互作用。受此启发，将角蛋白（Ker）和氧化单宁（TA）共同沉积在聚酰胺 66（PA66）织物上，制备出 OTA/Ker 涂层 PA66 织物（PA66@OTA/Ker），再与 Fe3+ 螯合，制备出耐火防滴 PA66 织物（PA66@OTA/Ker@Fe）。结果表明，PA66@OTA/Ker@Fe 的总热释放率（THR）、峰值热释放率（pRR）和总烟雾产生量（TSP）分别降低了 51%、57% 和 52%。PA66@OTA/Ker@Fe 在 800 °C 的氮气环境下的残炭率为 21.6%。此外，PA66@OTA/Ker@Fe 的 LOI 从对照样品的 20.5% 增加到 28.5%，并达到了 UL-94 V-0 等级。此外，PA66@OTA/Ker@Fe 还具有优异的抗紫外线性能、良好的机械性能和抗菌性能。这项研究为开发多功能 PA66 织物提供了一种环保策略。

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来源期刊

Progress in Organic Coatings 工程技术-材料科学：膜

CiteScore

11.40

自引率

15.20%

发文量

577

审稿时长

48 days

期刊介绍： The aim of this international journal is to analyse and publicise the progress and current state of knowledge in the field of organic coatings and related materials. The Editors and the Editorial Board members will solicit both review and research papers from academic and industrial scientists who are actively engaged in research and development or, in the case of review papers, have extensive experience in the subject to be reviewed. Unsolicited manuscripts will be accepted if they meet the journal''s requirements. The journal publishes papers dealing with such subjects as: • Chemical, physical and technological properties of organic coatings and related materials • Problems and methods of preparation, manufacture and application of these materials • Performance, testing and analysis.