{"title":"Novel cellulosic okra woven fabrics with enhanced flame retardant properties via synergistic coating of boric acid and ammonium polyphosphate","authors":"A.N.M.Masudur Rahman, Xueping Zhang, Xiaohong Qin","doi":"10.1016/j.polymer.2025.128289","DOIUrl":null,"url":null,"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.","PeriodicalId":405,"journal":{"name":"Polymer","volume":"33 1","pages":""},"PeriodicalIF":4.1000,"publicationDate":"2025-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Polymer","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1016/j.polymer.2025.128289","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"POLYMER SCIENCE","Score":null,"Total":0}
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.
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.