Novel cellulosic okra woven fabrics with enhanced flame retardant properties via synergistic coating of boric acid and ammonium polyphosphate

IF 4.1 2区化学 Q2 POLYMER SCIENCE

Polymer Pub Date : 2025-03-16 DOI:10.1016/j.polymer.2025.128289

A.N.M.Masudur Rahman, Xueping Zhang, Xiaohong Qin

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引用次数: 0

Abstract

Lignocellulosic fibers show combustibility, so it’s unsafe to use these fibers as reinforcement in flame retardant biocomposites that are designed for automotive textiles. Therefore, enhancing its flame retardancy is essential. This study aims to enhance the flame retardant characteristics of okra woven fabric (OWF) by using a synergistic coating of boric acid (BA) and ammonium polyphosphate (APP). Flame retardancy was evaluated through the analysis of limiting oxygen index, cone calorimeter, and vertical combustion test. An exploration of various concentrations of BA+APP was used, revealing that the coating of OWF with a composition of 6% BA+6% APP (wt%) exhibited the highest flame retardancy. TGA and DSC were employed to investigate the thermal degradation, which revealed that 6% BA+6% APP coated OWF yields the maximum char residue of 53% at 695 °C temperature. The alterations in chemical structure resulting from the BA+APP coating were analyzed using FTIR, XPS, and EDX, while SEM examined the deposition of the coating layer. The results of tensile properties indicated that BA+APP coating lead to a notable reduction in both tensile strength and elongation at break, as corroborated by ANOVA statistical analysis.

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来源期刊

Polymer 化学-高分子科学

CiteScore

7.90

自引率

8.70%

发文量

959

审稿时长

32 days

期刊介绍： Polymer is an interdisciplinary journal dedicated to publishing innovative and significant advances in Polymer Physics, Chemistry and Technology. We welcome submissions on polymer hybrids, nanocomposites, characterisation and self-assembly. Polymer also publishes work on the technological application of polymers in energy and optoelectronics. The main scope is covered but not limited to the following core areas: Polymer Materials Nanocomposites and hybrid nanomaterials Polymer blends, films, fibres, networks and porous materials Physical Characterization Characterisation, modelling and simulation* of molecular and materials properties in bulk, solution, and thin films Polymer Engineering Advanced multiscale processing methods Polymer Synthesis, Modification and Self-assembly Including designer polymer architectures, mechanisms and kinetics, and supramolecular polymerization Technological Applications Polymers for energy generation and storage Polymer membranes for separation technology Polymers for opto- and microelectronics.