作者：Yulong Qu
关键字：Poly (ethylene terephthalate), Durable, Flame retardant, UV resistance, Recycle
论文来源：期刊
发表时间：2024年

Poly (ethylene terephthalate) (PET)fabric is widely used in our lives due to its excellent mechanical strength, high elasticity, wrinkle resistance, and anti-abrasion. However, the inflammability and droplets produced during combustion restricted its application. Herein, a novel PET fabric with fire resistance, anti-dripping, and UV resistance is proposed to resolve this problem. Firstly, the finishing agent (AAD) was synthesized using adipoyl chloride, 9-anthracenemethanol, and diethyl(hydroxymethyl)phosphonate. Then AAD was introduced to the surface of PET fabric by dip-pad-cure process. The limiting oxygen index (LOI) value of AAD-treated PET enhanced to 23.8% from 19.3%. Besides, the fabric passed the vertical burning test (VBT) with no droplets generated. The fabric could still pass the VBT and maintain an LOI value of 23.3% after washing. Meanwhile, the AAD-treated PET fabric showed outstanding UV resistance with a high UPF value of 4318.27. The breaking force of AAD-treated PET was also improved. More importantly, the AAD coating could be easily removed from the fabric using dichloromethane and recycled using a rotary evaporator with a recovery rate of 98.6%. The recycled AAD could also recoated on the PET fabric to impart similar properties. This work proposed a novel strategy to prepare durable flame retardant and UV-resistant PET fabrics with recyclability.

聚对苯二甲酸乙二醇酯 （PET） 织物因其优异的机械强度、高弹性、抗皱性和抗磨损性而在我们的生活中得到广泛应用。然而，燃烧过程中产生的易燃性和液滴限制了其应用。在此，提出了一种具有防火、抗滴落和抗紫外线的新型 PET 织物来解决这个问题。首先，使用二泊酰氯、9-蒽甲醇和二乙基（羟甲基）膦酸盐合成整理剂 （AAD）。然后通过浸渍垫固化工艺将 AAD 引入 PET 织物表面。AAD 处理的 PET 的极限氧指数 （LOI） 值从 19.3% 提高到 23.8%。此外，织物通过了垂直燃烧测试 （VBT），没有产生液滴。织物在洗涤后仍可通过 VBT 并保持 23.3% 的 LOI 值。同时，AAD 处理的 PET 织物表现出出色的抗紫外线性，UPF 值为 4318.27。AAD 处理的 PET 的断裂力也有所提高。更重要的是，AAD 涂层可以使用二氯甲烷轻松从织物上去除，并使用旋转蒸发器回收，回收率为 98.6%。回收的 AAD 也可以重新涂覆在 PET 织物上，以赋予类似的性能。这项工作提出了一种制备具有可回收性的耐用阻燃和抗紫外线 PET 织物的新策略。