Durable Flame Retardant Cotton Fabric Prepared by Partial Pyrophosphorylation and Metal Complexation

Sekiguchi, Yuka; Sawatari, Chie; Yagi, Takeshi

doi:10.1177/004051750007000111

Cited by 10 publications

(6 citation statements)

References 13 publications

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“…The phosphorylation of starch with sodium trimetaphosphate was also performed by reactive extrusion allowing higher degrees of substitution. 111,112 Sekiguchi et al 62 showed that the phosphorylation of cellulose in DMF with H 4 P 2 O 7 was more efficient when the reaction was performed in the presence of phosphoric acid and-or cyanoguanidine. Phosphate derivatives of chitosan may be obtained by interpolymer linkage of chitosan with sodium tripolyphosphate or polyphosphate.…”

Section: Polysaccharide Phosphorylation With Polyphosphorus Compoundsmentioning

confidence: 99%

“…For instance, the use of polyphosphorus or alkyl chlorophosphate compounds as phosphorylating agents has been developed in the field of textile chemistry in order to prepare fireproof fabrics. 62 Phosphorylated compounds are char-forming materials; they prevent combustion and delay the spread of the fire after ignition. During combustion, phosphorus generates a polymeric form of phosphoric acid.…”

Section: Applications Of Phosphorylated Polysaccharidesmentioning

confidence: 99%

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Phosphorylation of bio-based compounds: the state of the art

et al. 2015

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International audienceOver the last few years, more and more papers have been devoted to phosphorus-containing polymers, mainly due to their fire resistance, excellent chelating and metal-adhesion properties. Nevertheless, sustainability, reduction of environmental impacts and green chemistry are increasingly guiding the development of the next generation of materials. The use of bio-based polymer matrices might allow the reduction of environmental impacts by using renewable carbon and by achieving more easily biodegradable or reusable materials. The aim of this review is to present both fundamental and applied research on the phosphorylation of renewable resources, through reactions on naturally occurring functions, and their use in biobased polymer chemistry and applications. In the first section, different strategies for the introduction of phosphorus-containing functions on organic backbones are described. In the following sections, the main families of chemicals based on renewable resources are covered: namely polysaccharides (cellulose, chitosan, starch, dextran etc.), biophenols (lignins, biobased phenolic compounds, cardanol etc.), triglycerides (oils, glycerol) and hydroxy acid compounds

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Section: Polysaccharide Phosphorylation With Polyphosphorus Compoundsmentioning

confidence: 99%

Section: Applications Of Phosphorylated Polysaccharidesmentioning

confidence: 99%

Phosphorylation of bio-based compounds: the state of the art

et al. 2015

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“…Giraud 4 , et al studied the flame behaviour of cotton coated with polyurethane containing micro encapsulated flame-retardant agent. Sekiguchi 5 worked for durable flame-retardant cotton fabric prepared by partial phosphorylation and metal complexation.…”

Section: Introductionmentioning

confidence: 99%

Flame-retardant Cotton Fabric Through Graft Copolymerisation

Kaur¹,

Rajneesh²,

Vibha³

2007

DSJ

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In an attempt to impart flame-retarding properties to the cotton fabric, post-grafting phosphorylation reactions on grafted cotton fabric were carried out. Photochemical graft copolymerisation of 4-vinyl pyridine (4-VP) onto cotton fabric using benzophenone as photosensitiser was carried out. Maximum percentage of grafting Pg, (18.50 %) was obtained under optimum conditions; irradiation time 75 min, 0.5 ml of benzophenone, [4-VP]=748.71 x 10 -2 mole/l and 5 ml of water in the reaction mixture. Aliphatic alcohols of varying chain length decreased percentage of grafting. The pendant pyridine rings of the 4-VP grafted cotton fabric were converted to pyridinium chloride followed by the reaction with acrylamide to give 2-amidoethylpyridiniumchloride. This was subjected to phosphorylation reaction with PCl 3 /petroleum ether. The phosphorylated grafted cotton fabric burns only in the presence of flame with very slow propagation of the flame (only 3.8 cm 2 ) was found to burn of the total area of 147 cm 2 with 0.12 g of the ash content. Characterisation of gray cotton fabric and modified cotton fabric was carried out by FTIR, thermogravimetric analysis, crease recovery, and moisture absorption studies.

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“…16 However, it should be noted that the synthesis of phosphorylated cellulose requires high temperatures and a lengthy process before it can be used as an additive. 17 Thus, the utilization of commercial flame retardants to fabricate flameretardant lyocell fiber through the blend method has received relatively little attention to date.…”

Section: Introductionmentioning

confidence: 99%

“…To address these concerns, researchers have turned to phosphorylated microcrystalline cellulose as an alternative for the production of flame‐retardant lyocell fiber through a cost‐effective blend strategy 16 . However, it should be noted that the synthesis of phosphorylated cellulose requires high temperatures and a lengthy process before it can be used as an additive 17 . Thus, the utilization of commercial flame retardants to fabricate flame‐retardant lyocell fiber through the blend method has received relatively little attention to date.…”

Section: Introductionmentioning

confidence: 99%

N‐methylmorpholine‐N‐oxide molecules coated ammonium polyphosphates for dope spinning of flame‐retardant lyocell fiber

Bai,

Peng,

Nie

et al. 2024

Polymer Engineering & Sci

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Lyocell fiber, hailed as the “verdant filament of the 21st century,” boasts elevated tensile strength, environmentally conscientious production practices, and innate biodegradability. Nonetheless, its intrinsic combustibility constitutes a noteworthy impediment to its pervasive utilization across textile and industrial domains. In a concerted effort to surmount this challenge, ammonium polyphosphate (APP) underwent modification through the infusion of N‐methylmorpholine‐N‐oxide (NMMO) molecules, amplifying its dispersibility within lyocell solutions. The resultant NMMO‐coated ammonium polyphosphate (NAPP) underwent meticulous characterization of both its structure and properties. Remarkably, lyocell fiber impregnated with 30% NAPP exhibited exemplary flame retardancy, enduring through 30 laundering cycles. Notably, its tensile strength remained notably robust at 139 MPa, demonstrating a mere 6.1% reduction in comparison to its pristine lyocell counterpart. This study delineates a promising trajectory for the fabrication of mechanically resilient lyocell fibers endowed with commendable flame‐retardant attributes.Highlights The raw material is waste cotton textiles, prepared on a green basis. The use of ultrasonic mixing and low‐speed stirring defoaming method and the use of room temperature spinning advantage of the production of flame retardant lyocell fiber. The amount of flame retardant is small, and the mechanical strength is reduced to a lesser extent. Good flame‐retardant effect and excellent water washing resistance.

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Durable Flame Retardant Cotton Fabric Prepared by Partial Pyrophosphorylation and Metal Complexation

Cited by 10 publications

References 13 publications

Phosphorylation of bio-based compounds: the state of the art

Phosphorylation of bio-based compounds: the state of the art

Flame-retardant Cotton Fabric Through Graft Copolymerisation

N‐methylmorpholine‐N‐oxide molecules coated ammonium polyphosphates for dope spinning of flame‐retardant lyocell fiber

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