An amino trimethylene phosphonic acid‐based chelated boric acid complex that works as a synergistic flame retardant for enhancing the flame retardancy of cotton fabrics. Issue 2 (17th February 2023)

• Record Type: Journal Article
• Authors: Zhu, Wenju; Yang, Mingyang; Wang, Qing; Zhang, Xiaohan; Li, Dongxiang; Xu, Zelong; Liu, Shuixia; Dai, Zhao
• Is Part Of: Journal of the Chinese Chemical Society. Volume 70:Issue 2(2023)
• Page Start: 159
• Page End: 170
• Publication Date: 2023-02-17
• Subjects: ATMP -- chelating coordination -- composite flame retardant -- cotton; Chemistry -- Periodicals; Electronic journals; 540.5
• DOI: 10.1002/jccs.202200525
• Languages: English
• ISSNs: 0009-4536

Abstract

Abstract: The chelating ligands of boric acid and amino trimethyl phosphonate prepared a novel flame retardant (BAP) for the cotton fabric. A stable chemical and coordination bond was formed on the surface of the cotton fibers by a simple three‐curing finishing process to make the fabric exhibits excellent durable flame retardancy. Cotton fabrics' tensile strength and whiteness got substantially retained after BAP treatment. 90 g/L BAP‐treated samples (3 curing times, 50 laundry cycles) showed good flame retardancy and durability, holding the largest limit oxygen index, 29.7%, and the shortest damage length, 61 mm. A condensed phase and gas phase synergistic flame retardant mechanism was concluded by thermogravimetric, cone calorimeter tests, and thermogravimetric infrared analysis. Abstract : BAP was synthesized by urea, boric acid, pentaerythrotol and ATMP with a one pot synthesis method. BAP solution finished cotton fiber was shown the best flame retardancy and durability, the LOI data up to 25%, and the damaged length was 61 mm, after 50 launderings.