Flame retardancy and mechanism of polymer flame retardant containing P–N bonds for cotton fabrics modified by chemical surface grafting

Liu, Kunling; Lu, Yonghua; Cheng, Yao; Li, Jinhao; Zhang, Guangxian; Zhang, Fengxiu

doi:10.1007/s10570-024-05785-0

Cited by 9 publications

(1 citation statement)

References 47 publications

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“…Surface treatment technologies such as impregnation, padding-drying-curing [6,7], the layer-by-layer (LBL) technique [8], gel-sol finishing process [9], and grafting [10,11] are considered the most straightforward and effective methods for imparting flame-retardant or antibacterial properties [12] to cotton fabrics. Building upon these techniques, various functional finishing agents or coating systems have been designed, developed, and applied [13].…”

Section: Introductionmentioning

confidence: 99%

Facile Fabrication of Highly Efficient Chitosan-Based Multifunctional Coating for Cotton Fabrics with Excellent Flame-Retardant and Antibacterial Properties

Huang,

Zhang,

Cao

et al. 2024

Polymers

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Interest in the development of eco-friendly, sustainable, and convenient bio-based coatings to enhance flame retardancy and antibacterial properties in cotton fabrics is growing. In this work, chitosan was protonated at its amino groups using a method with a high atom economy using an equimolar amount of amino trimethylene phosphonic acid (ATMP), resulting in the fabrication of a single-component chitosan-based multifunctional coating (ATMP-CS), thereby avoiding any additional neutralization or purification steps. Cotton fabrics coated with various loads of ATMP-CS were prepared through a padding–drying–curing process. The morphology, thermal stability, mechanical properties, antibacterial properties, flame-retardant behavior, and flame-retardant mechanism of these fabrics were investigated. The coating exhibited excellent film-forming properties, and it imparted a uniform protective layer onto the surfaces of the cotton fabrics. When the load capacity reached 11.5%, the coated fabrics achieved a limiting oxygen index of 29.7% and successfully passed the VFT test. Moreover, the ATMP-CS coating demonstrated antibacterial rates against Escherichia coli and Staphylococcus aureus reaching 95.1% and 99.9%, respectively. This work presents a straightforward and gentle approach to fabricating colorless, environmentally friendly, and highly efficient fabric coatings that have potential applications in promoting the use of bio-based materials.

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