Development of flame retardant cotton fabric based on ionic liquids via sol-gel technique.

Bentis, Aziz; Boukhriss, Aïcha; Boyer, Damien; Gmouh, Saïd

doi:10.1088/1757-899x/254/12/122001

Cited by 20 publications

(5 citation statements)

References 16 publications

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“…In order to quaternize the tributylamine molecule, it was mixed with chlorobutane in a molar ratio (1:1) and transferred to 400 mL acetonitrile. The resulting solution was stirred and refluxed for 24 h at 353 K. Then the anion exchange procedure was performed to exchange the chlorine (Cl − ) anions by their PF 6 − counterparts 40 [see Fig. 1(c)].…”

Section: Methodsmentioning

confidence: 99%

Reliable and efficient membrane processes for clean and sustainable production of fresh water from saline waste

Ouchn,

Chaouqi,

Avci

et al. 2024

J of Chemical Tech & Biotech

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BACKGROUNDIncreasing water scarcity due to growing demand highlights the urgency for innovative solutions. Seawater desalination is emerging as a crucial answer, with direct contact membrane distillation (DCMD) emerging as a promising technology in this context. In particular, membranes produced from ionic liquids constitute a well‐established avenue for the preparation of membranes by non‐solvent phase inversion (NIPS) in the field of desalination.RESULTSThe tests carried out as part of the DCMD, using PVDF membranes modified with the IL MPF6 and TBAPF6 synthesized during this study, in particular those containing 50% TBAFP6, demonstrate a notable improvement in hydrophobicity and porosity (121,48°, 79%). The results suggest that the flux of the PVDF‐TBAPF6 membrane shows a clear improvement of 300% compared to the support alone. Various parameters such as salinity, temperature and flow rate were examined, highlighting their impact on membrane performance. The low energy parameters (Ea = 43,36 Kj/mol, ΔH≠ = 40,86 Kj/mol) indicate a diffusion mechanism of vapor molecules, occurring by successive jumps through the IL interaction sites.CONCLUSIONExtensive experimental investigations have carefully anticipated the permeate flow in DCMD, aiming to efficiently extract pure water. DCMD is positioned as a promising technology for desalination and treatment of BRINE solutions. Therefore, this study can make a significant contribution to the expansion of DCMD by facilitating the prediction and optimization of operational parameters, thereby paving the way for expanded application of this technology.This article is protected by copyright. All rights reserved.

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Section: Methodsmentioning

confidence: 99%

Reliable and efficient membrane processes for clean and sustainable production of fresh water from saline waste

Ouchn,

Chaouqi,

Avci

et al. 2024

J of Chemical Tech & Biotech

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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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“…One stage included simply doping flame-retardants physically into silica sol during the Sol–gel process, in which the treated fabrics possessed poor washing durability. Meanwhile, increasing attention has focused on the use of an alkoxysilane precursor bearing a flame-retardant atom such as phosphate, boron, and nitrogen to form chemically hybrid silica sol via the Sol–gel method [ 50 , 51 ]. Additionally, Alongi et al [ 36 ] successfully used diethyl phosphatoethyl triethoxysi-lane (DPTES) as a monomer to synthesize hybrid phosphorus–silicon organic–inorganic coatings to enhance cotton flame-retardancy.…”

Section: Introductionmentioning

confidence: 99%

N-Containing Hybrid Composites Coatings for Enhanced Fire-Retardant Properties of Cotton Fabric Using One-Pot Sol–Gel Process

et al. 2023

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In this report, a unique methodology/process steps were followed using Sol–gel-based concept to deposit thin flame-retardant coatings on cotton fabric. Surface microstructure and compositional analysis of the coated cotton were carried out using scanning electronic microscope (SEM), which explored significant coverage of the fabric. The obtained samples were further analyzed through rupturing mechanism test and color check. Compositional investigation of the coated samples was carried through Attenuated total reflection Fourier transform infrared (ATR–FTIR) and energy-dispersive X-rays spectroscopy (EDS) analysis. Thermal analyses were carried out through Thermogravimetric analysis (TGA) and Vertical flame tests (VFT), which suggested higher resistance of the coatings obtained for 5 h and zero heat-treatment time on the cotton fabric. A 28.86% char residue was obtained for the same sample (ET–5h–RT) coupled with higher degradation temperature and excellent combustion properties.

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Development of flame retardant cotton fabric based on ionic liquids via sol-gel technique.

Cited by 20 publications

References 16 publications

Reliable and efficient membrane processes for clean and sustainable production of fresh water from saline waste

Reliable and efficient membrane processes for clean and sustainable production of fresh water from saline waste

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

N-Containing Hybrid Composites Coatings for Enhanced Fire-Retardant Properties of Cotton Fabric Using One-Pot Sol–Gel Process

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