Phosphorus-Nitrogen Flame Retardant via Copper Complex

1969 ◽  
Vol 39 (4) ◽  
pp. 363-367 ◽  
Author(s):  
D. J. Donaldson ◽  
D. J. Daigle
Keyword(s):  
Cotton Fabric ◽  
Flame Retardancy ◽  
Ammonium Hydroxide ◽  
Cotton Fabrics ◽  
Gaseous Ammonia ◽  
Copper Salts ◽  
Single Bath ◽  
The Stability ◽  
Strength Retention ◽  
Stability Of The Solution

Copper salts were found to stabilize tetrakis (hydroxymethyl) phosphonium hydroxide (THPOH)-ammonium hydroxide solutions by formation of a complex thereby making it possible to apply THPOH to cotton fabric from a single bath without the use of gaseous ammonia. The effect of the concentration of copper salts, THPOH, and NH4OH on the stability of the solution was studied. Cotton fabric with good flame retardancy, strength retention, and hand was obtained by the use of conventional pad-cure techniques for applying the solutions. Cotton fabrics with approximately 17% add-ons retained their flame retardancy after 25 home launderings.

scholarly journals Established an eco-friendly cotton fabric treating process with enhancing anti-wrinkle performance

2021 ◽  
Vol 16 ◽  
pp. 155892502110034
Author(s):  
Xiongfang Luo ◽  
Pei Cheng ◽  
Wencong Wang ◽  
Jiajia Fu ◽  
Weidong Gao
Keyword(s):  
Tensile Strength ◽  
Citric Acid ◽  
Cotton Fabric ◽  
Crosslinking Agent ◽  
Cost Effective ◽  
Waterborne Polyurethane ◽  
Cotton Fabrics ◽  
Wrinkle Resistance ◽  
Before And After ◽  
Strength Retention

This study establishes an eco-friendly anti-wrinkle treating process for cotton fabric. Sodium hydroxide-liquid ammonia pretreatment followed by 6% (w/w) PU100 adding citric acid pad-cure-dry finishing. In this process, citric acid (CA) was used as the fundamental crosslinking agent during finishing because it is a non-formaldehyde based, cost-effective and well wrinkle resistance agent. Environmental-friendly waterborne polyurethane (WPU) was used as an additive to add to the CA finishing solution. Six commercial WPUs were systematically investigated. Fabric properties like wrinkle resistance, tensile strength retention, whiteness, durable press, softness, and wettability were well investigated. Fourier transform infrared spectra and X-ray diffraction spectra were also measured and discussed before and after adding waterborne polyurethane. Tentative mechanism of the interaction among the WPU, CA, and modified cotton fabrics is provided. The effect of cotton fabric pretreatment on fabric performance was also investigated. After the eco-process’s treatment, the fabric wrinkle resistant angle was upgraded to 271 ± 7°, tensile strength retention was maintained at 66.77% ± 3.50% and CIE whiteness was elevated to 52.13 ± 3.21, which are much better than the traditional CA anti-wrinkle finishing based on mercerized cotton fabrics. This study provides useful information for textile researchers and engineers.

Durable Antibacterial Finish on Cotton Fabrics with PAMAM/Ag+

2011 ◽  
Vol 332-334 ◽  
pp. 77-80 ◽  
Author(s):  
Chuan Jie Zhang ◽  
Hong Yang ◽  
Yun Liu ◽  
Ping Zhu
Keyword(s):  
Cotton Fabric ◽  
Antibacterial Agent ◽  
Antibacterial Property ◽  
Breaking Strength ◽  
Antibacterial Properties ◽  
Pamam Dendrimers ◽  
Cotton Fabrics ◽  
E Coli ◽  
Strength Retention ◽  
Better Than

Cotton fabric with excellent antibacterial properties was obtained by treated with polyamide-amine (PAMAM) dendrimers as a carrier and silver nitrate as an antibacterial agent. The antibacterial cotton fabrics were prepared by the methods of one-bath process and two-bath process. Antibacterial activity of cotton fabrics treated by two different methods was good, but the antibacterial durability of cotton fabric treated with two-bath process was better than that treated with one-bath process. After 50 washing cycles, cotton fabric treated with two-bath process still had good antibacterial property and its inhibitory rate to Gram-positive S. aureus and Gram-negative E. coli was over 99 %. It was found that the breaking strength retention of finished cotton fabrics was 85.83 % and the decrease of cotton fabrics’ whiteness index was about 15 %.

Flammability and thermal properties of cotton fabrics modified with a novel flame retardant containing triazine and phosphorus components

2016 ◽  
Vol 87 (11) ◽  
pp. 1367-1376 ◽  
Author(s):  
Chaohong Dong ◽  
Zhou Lu ◽  
Peng Wang ◽  
Ping Zhu ◽  
Xuechao Li ◽  
...  
Keyword(s):  
Heat Release ◽  
Flame Retardant ◽  
Cotton Fabric ◽  
Flame Retardancy ◽  
Decomposition Temperature ◽  
Cotton Fabrics ◽  
Cone Calorimetry ◽  
Limiting Oxygen Index ◽  
Untreated Cotton ◽  
Index Value

A novel formaldehyde-free flame retardant containing phosphorus and dichlorotriazine components (CTAP) for cotton fabrics was synthesized. As an active group, the dichlorotriazine could react with cotton fabric via covalent reaction. The addition of 20.7 wt% CTAP into the cotton fabric obtained a high limiting oxygen index value of 31.5%, which was 13.5% higher than the pure cotton fabric. The results of heat release rate, total heat release and effective heat combustion indicated that CTAP effectively imparted flame retardancy to cotton fabric by the cone calorimetry test. With respect to the untreated cotton fabrics, the treated cotton fabrics degraded at lower decomposition temperature and form a consistent and compact char layer, which could be observed by thermogravimetric analysis, Fourier transform infrared spectroscopy and scanning electron microscopy. Compared to the untreated cotton fabrics, CTAP performed an effective role in flame retardancy for treated cotton fabrics. Meanwhile, it stimulated the formation of char and promoted the thermal stability of treated cotton fabrics during combustion.

scholarly journals Fabrication of High Nano-ZnO Doped with Boric Acid Assembled on Cotton Fabric with Flame Retardant Properties

2019 ◽  
Vol 27 (4(136)) ◽  
pp. 65-70
Author(s):  
Chao Ling ◽  
Lamei Guo
Keyword(s):  
Boric Acid ◽  
Cotton Fabric ◽  
Flame Retardancy ◽  
Cotton Fabrics ◽  
Curing Temperature ◽  
Nano Zno ◽  
Cotton Fibres ◽  
Flame Retardant Properties ◽  
Burning Method

In this study, an attempt was made to investigate the flame retardancy of cotton fabrics coated with a high nano-ZnO content. Via a simply method in situ, a novel ZnO/cotton composite can be fabricated with a high proportion of nano-ZnO assembled on cotton fabric, where the finished cotton fabric has a certain property of flame retardancy. Discussed herein is the effect of the processed liquid concentration, ammonia-smoking time, and curing temperature on fabric properties such as flame retardancy and hand feeling. Performed were also tests of doping boric acid using the vertical burning method. The finished cotton fabrics were analysed using X-Ray Diffrcation (XRD) and a field emission scanning electron microscope(FESEM), which indicated that between the fibres, and inside the lumen and mesopores of the cotton fibres are assembled with nano-ZnO. The results show that the nano-ZnO content on cotton fabrics can reach up to 15.63 wt%, with the finished cotton fabric having excellent flame retardancy, despite the long after-glow time; however, doping with 0.8 wt% boric acid on the cotton fabric can markedly reduce this. Therefore, a high amount of nano-ZnO doped with boric acid assembled on cotton fabric has great potential in the future.

Interaction of Flame-Retardant and Untreated Cotton Fabrics during Burning

1977 ◽  
Vol 47 (5) ◽  
pp. 351-360 ◽  
Author(s):  
Stanley R. Hobart ◽  
Charles H. Mack
Keyword(s):  
Flame Retardant ◽  
Cotton Fabric ◽  
Flame Retardancy ◽  
Oxygen Index ◽  
Cotton Fabrics ◽  
Transfer Effect ◽  
Geometrical Configuration ◽  
Untreated Cotton ◽  
Phosphorus Containing ◽  
Flame Retarded

Transfer of flame retardancy from fabric treated with THPOH-NH3 to untreated cotton fabric during burning was observed on fabric samples sewed together with glass thread. The transfer effect was evidenced by the development of substantial char and the presence of phosphorus and nitrogen in the char of the untreated fabric. Oxygen-index determinations on multilayered combinations of flame-retarded (FR) and untreated fabrics also supported this observation. The extent of FR transfer varied with the geometrical configuration of the layers and the FR add-on. Tests showed that smoke from combustion of THPOH-NH3-treated fabric, passed through untreated cotton fabric, was the means of transfer of phosphorus, nitrogen, and flame retardancy. The FR transfer effect was also demonstrated for several other phosphorus-containing flame-retardancy treatments.

Synergistically improved flame retardancy of the cotton fabric finished by silica-coupling agent-zinc borate hybrid sol

2021 ◽  
pp. 152808372110288
Author(s):  
Dan Li ◽  
Zhen-hua Wang ◽  
Yuan-shu Zhu ◽  
Fei You ◽  
Song-tao Zhou ◽  
...  
Keyword(s):  
Cotton Fabric ◽  
Flame Retardancy ◽  
Coupling Agent ◽  
Coupling Effect ◽  
Synergistic Effects ◽  
Sol Gel ◽  
Cotton Fabrics ◽  
Silica Sol ◽  
Zinc Borate ◽  
Limiting Oxygen Index

The sol-gel process has been applied to cotton fabrics to cover the fibers with a silica-based film, which can improve their thermal oxidation and combustion behaviors. Silica sol, silane coupling agent 3-glycidoxypropyltrimethoxysilane (KH560) and flame retardant zinc borate (ZB) are used together to prepare SiO2-KH560-ZB hybrid sol, which is then finished on the surface of cotton fabric through impregnation and baking. Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), limiting oxygen index analysis (LOI) and microscale combustion calorimetry (MCC) are used to characterize functional groups, thermal stability and flammability properties of finished fabrics. Surface morphology of sol modified cotton fabrics are analyzed by scanning electron microscopy (SEM) and energy dispersive X-Ray spectroscopy (EDX). Results show the sols are successfully converted into gel coatings onto cotton fabrics, and continuous smoldering phenomenon of resulted fabrics disappears. ΔLOI/Δm of SiO2-KH560-ZB coated cotton fabric reaches the highest of 0.37%/g, char residue rate is as high as 28.43% and the peak heat release rate (PHRR) is reduced by 26.9% (83.7 W/g). KH560 has a significant coupling effect on combining components in the sol system and increases compatibility between sols and cotton fabrics. ZB (cooling, separation, dilution and suppression), silica sol (physical barrier) and KH560 show excellent synergistic effects in enhancing overall flame retardancy.

In situ polymerization of polyaniline on cotton fabrics with phytic acid as a novel efficient dopant for flame retardancy and conductivity switching

2020 ◽  
Vol 44 (8) ◽  
pp. 3504-3513 ◽  
Author(s):  
Qingqing Zhou ◽  
Jiayi Chen ◽  
Tianchi Zhou ◽  
Jianzhong Shao
Keyword(s):  
Flame Retardant ◽  
Phytic Acid ◽  
Cotton Fabric ◽  
Flame Retardancy ◽  
In Situ Polymerization ◽  
Cotton Fabrics ◽  
Water Bath ◽  
Conductivity Switching ◽  
Ice Water

A flame-retardant conductive cotton fabric switch was successfully prepared by the in situ polymerization of polyaniline doped with novel phytic acid (PA) by impregnation in an ice water bath for 24 h.

Synergistic effect of phosphorus, nitrogen and silicon on flame retardancy properties of cotton fabric treated by sol-gel process

2016 ◽  
Vol 28 (3) ◽  
pp. 319-327 ◽  
Author(s):  
Aysun Aksit ◽  
Nurhan Onar ◽  
Bengi Kutlu ◽  
Evren Sergin ◽  
Ismail Yakin
Keyword(s):  
Synergistic Effect ◽  
Flame Retardant ◽  
Cotton Fabric ◽  
Flame Retardancy ◽  
Flame Spread ◽  
Sol Gel ◽  
Cotton Fabrics ◽  
Morphological Properties ◽  
Content Type ◽  
Sol Gel Process

Purpose – The purpose of this paper is to develop the flame retardancy properties of cotton fabrics with treatment of phosphorus and nitrogen containing silane-based nanosol by sol-gel process. Design/methodology/approach – Nanosols containing tetraethoxysilane or (3-aminopropyl) triethoxysilane as precursors, (3-glycidyloxypropyl) trimethoxysilane as cross-linking agent and guanidine phosphate monobasic as flame retarding agent were impregnated on cotton fabrics. Flame retardancy properties of the fabric samples were determined by limited flame spread test and limited oxygen index (LOI) test. In addition, microstructural and surface morphological properties of the fabric samples were characterized by Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy and scanning electron microscope. Findings – Depending on the limited flame spread test, the authors show that the coated fabric samples gain flame retardancy properties and the LOI value of the samples increased as to 45.7 per cent by the synergistic effect of phosphorus-nitrogen-silicon. Originality/value – There have some studies in flame retardancy behaviour of textiles. In this study, flame retardant cotton fabric with very low weight in grams was improved by sol-gel process. Moreover, ecological process was provided thanks to using halogen-free flame retardant.

Flame-Retardancy Transfer from FR Cotton Fabric to Cotton/Polyester Blends

1977 ◽  
Vol 47 (6) ◽  
pp. 394-397 ◽  
Author(s):  
Stanley R. Hobart ◽  
Charles H. Mack ◽  
Stanley P. Rowland
Keyword(s):  
Flame Retardant ◽  
Cotton Fabric ◽  
Flame Retardancy ◽  
Cotton Fabrics ◽  
Untreated Cotton ◽  
Phosphorus Containing ◽  
Flame Retarded ◽  
Blend Fabric

Flame-retardancy transfer from cotton fabrics flame-retarded (FR) with phosphorus-containing compounds to adjacent, untreated cotton/polyester blend fabrics was observed during burning. Reduced flammability was found for blends containing 35% or less polyester; this was indicated by the fact that the char weight for burning FR cotton and untreated blend was higher than that for separate burning; however, when the level of polyester was above 35%, there was essentially no evidence of reduced flammability. Transfer of phosphorus from FR to blend fabric was detected by analysis of chars from blends of high cotton content. Preferential pickup of flame retardant by the cotton portion of the blend is indicated.

scholarly journals Facile Preparation of Flame Retardant Cotton Fabric via Adhesion of Mg(OH)2 by the Assistance of Ionic Liquid

Polymers ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 259 ◽  
Author(s):  
Jinli Ma ◽  
Xiao Wang ◽  
Jing Li ◽  
Ru Chen ◽  
Ju Wei
Keyword(s):  
Ionic Liquid ◽  
Flame Retardant ◽  
Cotton Fabric ◽  
Flame Retardancy ◽  
Cotton Fabrics ◽  
New Approach ◽  
Afterglow Time ◽  
Convenient Approach ◽  
Cellulosic Textiles ◽  
Heat Released

A new approach for flame retardant functional finishing of textiles was explored to improve flame retardancy of cotton fabrics by simple physical adhesion method. Mg(OH)2 was adhered to cotton fiber with the aid of fiber swelling in ionic liquid on heating and shrinkage on washing to obtain flame retardancy. The effects of immobilizing condition and methods on flame retardancy were discussed. The surface morphology, crystal structure, combustion behavior, thermal and physical properties of cotton fabric adhered with Mg(OH)2 were analyzed. The afterflame time and afterglow time of adhered cotton fabric were significantly reduced to less than 5 s. The thermal weight loss of cotton fabric was increased by 11.7% and the total heat released per unit mass was decreased by 20.9% after MH adhesion. The simple eco-friendly adhesion method provided a convenient approach for the development and application of flame retardant functional cellulosic textiles.

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