Layer‐by‐layer assembly of halogen‐free polymeric materials on nylon/cotton blend for flame retardant applications

Narkhede, Mahesh Bhanudas; Thota, Sammaiah; Mosurkal, Ravi; Muller, Wayne S.; Kumar, Jayant

doi:10.1002/fam.2280

Cited by 18 publications

(7 citation statements)

References 33 publications

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“…[19] The mass adsorbed per square centimeter area on PET-COT fabric as a function of the number of bilayers is measured and shown in Figure 2b. [20] It can be found that the mass adsorbed per unit area increases linearly with the number of bilayers for both (PAH/APP) 10 and (PAH-MEL/ APP) 10 coated fabrics, which is consistent with the result of thickness increase. Figure 3 shows the SEM micrographs of (PAH/APP) 10 and (PAH-MEL/APP) 10 coated fabric samples.…”

Section: Growth Of Multilayer Filmsupporting

confidence: 81%

Improving the flame retardant properties of polyester‐cotton blend fabrics by introducing an intumescent coating via layer by layer assembly

Liu

Xiaowei

Sun

et al. 2020

J of Applied Polymer Sci

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Layer by layer (LBL) assembly technique was used to deposit multilayer coating containing phosphorus‐nitrogen onto the surface of fibers to improve the flame retardancy of polyester‐cotton (PET‐COT) blended fabric. Ellipsometer results confirmed that polyallylamine hydrochloride (PAH), melamine (MEL), and ammonium polyphosphate (APP) grew linearly on silicon wafer during the LbL process. The LOI value of coated PET‐COT fabric was increased from 20.8% of pristine fabric to 28.4% by the presence of about 9 wt% coating. Besides, this intumescent nanocoated PET‐COT fabric was self‐distinguished during the vertical burning test. Thermogravimetric analysis under both nitrogen and air atmosphere revealed that the initial degradation temperature of the coated sample was decreased and the char residue amount was significantly improved during combustion. The flame resistance performance evaluation by pyrolysis combustion flow calorimeter indicated that this coating effectively reduced the peak heat release rate of PET‐COT matrix. The scanning electron micrographs of char residue demonstrated that the char formation in the condensed phase and free radical caption in the gas phase was responsible for the improved flame retardancy. It is suggested this unique facile coating technology with low cycles and high efficiency has great potential to produce commercially available flame retardant polymeric‐cotton blend fabrics.

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Section: Growth Of Multilayer Filmsupporting

confidence: 81%

Improving the flame retardant properties of polyester‐cotton blend fabrics by introducing an intumescent coating via layer by layer assembly

Liu

Xiaowei

Sun

et al. 2020

J of Applied Polymer Sci

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“…In the United States and Europe, there is a movement to shift away from FRs that operate via vapor phase free radical scavenging to those that function in the condensed phase. Accordingly, phosphorous‐grafted graphene, nanoclays, and polysiloxanes have all been explored.…”

Section: Introductionmentioning

confidence: 99%

Bioinspired flame retardant polymers of tyrosol

Bouldin

Xia

Klement

et al. 2017

J of Applied Polymer Sci

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The enzyme catalyzed polymerization of flame retardant (FR) polymers from the renewable resource 2-(4-hydroxyphenyl) ethanol (HPE), commonly known as tyrosol, is presented. The synthesis is environmentally friendly and requires only monomer, peroxidase catalyst, dilute hydrogen peroxide, and deionized water. Phenolic polymers are produced in short, one pot, high yield reactions that require minimal purification. Fourier transform infrared spectroscopy and 1 H-NMR analysis suggest the polymers are coupled through the 1, 2, 4, and 5 positions of the phenol ring and through the phenoxy substituent. Thermogravimetric analysis and pyrolysis combustion flow calorimeter show HPE homopolymers exhibit very low heat release rate and total heat release, while copolymerization with phenol increases already high char yields. Gel permeation chromatography reveals the molecular weight of the polymer increases with ethanol cosolvent concentration. The alcohol cosolvent also increases the proportion of oxyphenylene linkages to the detriment of FR properties. Preliminary quantitative structure-activity relationship toxicity modeling predicts the polymers are negative for developmental toxicity and Ames mutagenicity.

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“…Anionic sodium phosphate (PSP) was combined with three polysiloxane materials containing different amine groups, comprising 35%-45% (trimethylammoniummethylphenythyl)-methyl siloxane, 55%-65% dimethyl siloxane copolymer chloride salt (QMS-435), aminoethylaminopropyl silsesquioxane-methylsilsesquioxane copolymer oligomer (WSA-7021), and aminopropyl silesquioxane oligomers (WSA-991) as positive polyelectrolyte polysiloxanes [99]. The coatings (ranging from five to 20 bilayers) were applied on a 1:1 nylon/cotton fabric blend using the layer-by-layer method.…”

Section: Intumescent Lbl Coatingsmentioning

confidence: 99%

Surface-Engineered Fire Protective Coatings for Fabrics through Sol-Gel and Layer-by-Layer Methods: An Overview

Malucelli

2016

Coatings

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Fabric flammability is a surface-confined phenomenon: in fact, the fabric surface represents the most critical region, through which the mass and heat transfers, responsible for fueling the flame, are controlled and exchanged with the surroundings. More specifically, the heat the fabric surface is exposed to is transferred to the bulk, from which volatile products of thermal degradation diffuse toward the surface and the gas phase, hence feeding the flame. As a consequence, the chemical and physical characteristics of the fabric surface considerably affect the ignition and combustion processes, as the surface influences the flux of combustible volatile products toward the gas phase. In this context, it is possible to significantly modify (and improve) the fire performance of textile materials by "simply" tailoring their surface: currently, one of the most effective approaches exploits the deposition of tailored coatings able to slow down the heat and mass transfer phenomena occurring during the fire stages. This paper reviews the current state of the art related to the design of inorganic, hybrid, or organic flame-retardant coatings suitable for the fire protection of different fabric substrates (particularly referring to cotton, polyester, and their blends). More specifically, the use of sol-gel and layer-by-layer (LbL) methods is thoroughly discussed; then, some recent examples of flame retardant coatings are presented, showing their potential advances and their current limitations.

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Layer‐by‐layer assembly of halogen‐free polymeric materials on nylon/cotton blend for flame retardant applications

Cited by 18 publications

References 33 publications

Improving the flame retardant properties of polyester‐cotton blend fabrics by introducing an intumescent coating via layer by layer assembly

Improving the flame retardant properties of polyester‐cotton blend fabrics by introducing an intumescent coating via layer by layer assembly

Bioinspired flame retardant polymers of tyrosol

Surface-Engineered Fire Protective Coatings for Fabrics through Sol-Gel and Layer-by-Layer Methods: An Overview

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