Durable flame retardant and UV-resistant coating for Poly (ethylene terephthalate) fabric with recyclability and reusability
writer：Yulong Qu
keywords：Poly (ethylene terephthalate), Durable, Flame retardant, UV resistance, Recycle
source：期刊
Issue time：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.
聚對苯二甲酸乙二醇酯 （PET） 織物因其優異的機械強度、高彈性、抗皺性和抗磨損性而在我們的生活中得到廣泛應用。然而，燃燒過程中產生的易燃性和液滴限制了其應用。在此，提出了一種具有防火、抗滴落和抗紫外線的新型 PET 織物來解決這個問題。首先，使用二泊酰氯、9-蒽甲醇和二乙基（羥甲基）膦酸鹽合成整理劑 （AAD）。然后通過浸漬墊固化工藝將 AAD 引入 PET 織物表面。AAD 處理的 PET 的極限氧指數 （LOI） 值從 19.3% 提高到 23.8%。此外，織物通過了垂直燃燒測試 （VBT），沒有產生液滴。織物在洗滌后仍可通過 VBT 并保持 23.3% 的 LOI 值。同時，AAD 處理的 PET 織物表現出出色的抗紫外線性，UPF 值為 4318.27。AAD 處理的 PET 的斷裂力也有所提高。更重要的是，AAD 涂層可以使用二氯甲烷輕松從織物上去除，并使用旋轉蒸發器回收，回收率為 98.6%。回收的 AAD 也可以重新涂覆在 PET 織物上，以賦予類似的性能。這項工作提出了一種制備具有可回收性的耐用阻燃和抗紫外線 PET 織物的新策略。