writer：Yufan Yang , Xingguo Wang , Xianwei Cheng , Hongfei Li , Xiaoyu Gu , Jun Sun , Sheng Zhang
keywords：Polyester/cotton blend fabrics，Flame retardant，Antibacterial property，Hybrid coating
source：期刊
Issue time：2022年

  In this work, an organic-inorganic hybrid coating was used to improve the fire safety and antibacterial property of polyester/cotton blend fabrics. The hybrid coating was constructed by two steps, including the in-situ growth of zirconium phosphate nanosheets, and the preparation of polyelectrolyte complex with phytic acid and poly(hexamethylene guanidine hydrochloride) via spraying method. The flame retardancy and antibacterial activity of treated fabrics were completely investigated. A self-extinguishing behavior was observed in vertical burning test and the damaged length was only 5.4 cm. The LOI value of treated fabrics was increased from 19.0% of pristine fabrics to 27.8%, and the peak heat release rate and total heat release were decreased by 42% and 27%, respectively. Besides, thermogravimetric analysis revealed that the char residue increased from 8.3% to 26.3% at 800 °C, confirming a great char-forming ability of coated fabrics. Tensile strength test indicates that the introduction of coating had no seriously damage to the mechanical properties of fabric. Moreover, an excellent antibacterial property of treated fabrics was proved by using agar diffusion method. This research provides an environmentally friendly path for the flame retardant and antibacterial modification of polyester/cotton blend fabrics.

  在这项工作中，使用有机-无机杂化涂层来提高涤棉混纺织物的防火安全性和抗菌性。该杂化涂层由磷酸锆纳米片原位生长和喷涂法制备植酸和聚(六亚甲基胍盐酸盐)聚电解质复合物两步构成。对处理过的织物的阻燃性和抗菌性进行了全面研究。在垂直燃烧试验中观察到自熄行为，损坏长度仅为5.4 cm。经处理织物的LOI值从原始织物的19.0%提高到27.8%，峰值放热率和总放热量分别下降42%和27%。除了，热重分析表明，在 800°C 时，焦炭残留量从 8.3% 增加到 26.3%，证实了涂层织物具有很强的成炭能力。拉伸强度试验表明，涂层的引入对织物的力学性能没有严重损害。此外，使用琼脂扩散法证明了处理过的织物具有优异的抗菌性能。该研究为涤棉混纺织物的阻燃抗菌改性提供了一条环保途径。使用琼脂扩散法证明了处理过的织物具有优异的抗菌性能。该研究为涤棉混纺织物的阻燃抗菌改性提供了一条环保途径。使用琼脂扩散法证明了处理过的织物具有优异的抗菌性能。该研究为涤棉混纺织物的阻燃抗菌改性提供了一条环保途径。