scholarly journals Effect of plasma grafting with Hexamethyldisiloxane on comfort and flame resistance of cotton fabric

2021 ◽  
Vol 72 (02) ◽  
pp. 225-230
Author(s):  
RIADH ZOUAR ◽  
SONDES GARGOUBI ◽  
Emilia Visileanu
Keyword(s):  
Flame Retardant ◽  
Cotton Fabric ◽  
Cotton Fabrics ◽  
Atmospheric Plasma ◽  
Clothing Industry ◽  
Plasma Technology ◽  
Flame Resistance ◽  
Before And After ◽  
Plasma Grafting ◽  
The Media

We investigated the potential of atmospheric plasma technology to enhance the properties of textile material against flame propagation before and after washing. The effects of this treatment on the rigidification of the media were also determined using draping and bending stiffness tests. We showed that deposing Silicone molecules on cotton fabrics leads to flame retardant cotton with a conservation of the whole structure after burning. Moreover, washing of the sample evidenced high permanency of the thin grafted coating against chemical domestic washing detergent. Nevertheless, comfort properties of the textile decrease, which limits the applications of the plasma eco-friendly technology in the clothing industry.

Development of thermally stable and hygienic colored cotton fabric made by treatment with natural coconut shell extract

2017 ◽  
Vol 48 (1) ◽  
pp. 87-118 ◽  
Author(s):  
MD Teli ◽  
Pintu Pandit
Keyword(s):  
Fourier Transform ◽  
Flame Retardant ◽  
Cotton Fabric ◽  
Oxygen Index ◽  
Fourier Transform Infrared ◽  
Cotton Fabrics ◽  
Energy Dispersive ◽  
Coconut Shell ◽  
Flame Resistance ◽  
Limiting Oxygen Index

As far as the value addition of textile is concerned, flame retardancy of textile materials is considered to be one of the most important properties in textile finishing by both industries as well as academic researchers. Flame-retardant property with thermal stability was imparted to cotton by using green coconut ( Cocos nucifera Linn) shell extract, a natural waste source of coconut. Coconut shell extract was analyzed by high-performance liquid chromatography, Fourier transform infrared spectroscopy, energy-dispersive spectrometry and its phytochemical analysis was also carried out. The coconut shell extract (acidic after extraction) was applied in three different pH (acidic, neutral, and alkaline) conditions to the cotton fabric. Flame-retardant properties of the untreated and the treated cotton fabrics were analyzed by limiting oxygen index and vertical flammability. The study showed that all the treated fabrics had good flame resistance property compared to that of the untreated fabric. The limiting oxygen index value was found to increase by 72.2% after application of the coconut shell extract from alkaline pH. Pyrolysis and char formation behavior of the concerned fabrics were studied using thermogravimetric analysis and differential scanning calorimetric analysis in a nitrogen atmosphere. The physicochemical composition of the untreated and coconut shell extract treated cotton fabrics were analyzed by attenuated total reflection–Fourier transform infrared, scanning electron microscope, and energy-dispersive X-ray spectroscopy. Also, treated cotton fabric showed natural brown color and antibacterial property against both Gram-positive and Gram-negative bacteria. The durability of the flame-retardant functionality to washing with soap solution has also been studied and reported in this paper.

scholarly journals Imparting flame resistance to citric acid–modified cotton fabrics using DNA

2020 ◽  
Vol 15 ◽  
pp. 155892502092221
Author(s):  
Qiulan Luo ◽  
Pu Gao ◽  
Jie Zhou ◽  
Jian Zhang ◽  
Wen Wu ◽  
...  
Keyword(s):  
Citric Acid ◽  
Flame Retardant ◽  
Cotton Fabric ◽  
Flame Retardants ◽  
Cotton Fabrics ◽  
Biological Macromolecules ◽  
Order Kinetic ◽  
Flame Resistance ◽  
Carboxyl Content ◽  
Human Needs

Textiles are one of the basic needs of humankind. Although textiles satisfy many human needs, they are implicated in the loss of life and property since many fibers and fabrics are inflammable. Many chemical finishes are applied to improve the flame resistance of textile materials. Unfortunately, most of the flame retardants are synthesized chemically, need large quantities to be used, cause adverse impact on the textiles and also expensive. In this research, a novel approach to using DNA from herring sperm as flame retardant for cotton was explored. Surface of the textiles was modified with citric acid to increase free carboxyl content and hence absorption of DNA. It was observed that DNA was absorbed into the cotton fabrics using chemical adsorption according to the quasi-second-order-kinetic model. Flammability of the cotton before and after the addition of DNA was checked. It was observed the length of fabrics damaged due to flames was only 29 mm compared to the original length of 350 mm. Such a high increase in flame resistance has not been reported for natural materials. In addition, the chemical reaction between DNA and cotton fabric can improve the flame retardant–washing resistance of the finished cotton fabric. In this article, the strategy of using biological macromolecules to flame-retardant fabrics can provide research basis for the design and development of efficient and environmentally friendly flame retardants.

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.

Layer-by-layer Assembly Polyethylenimine/phytic Acid Coating With Gradient Structure for High-Efficiency and Durable Flame Retardant Cotton Fabric With Good Physical and Mechanical Properties

2021 ◽  
Author(s):  
Xinhua Liu ◽  
Hailong Liu ◽  
Yinchun Fang
Keyword(s):  
Physical Properties ◽  
Flame Retardant ◽  
Cotton Fabric ◽  
High Efficiency ◽  
Cotton Fabrics ◽  
Gradient Structure ◽  
Layer By Layer ◽  
Assembly Method ◽  
Lbl Assembly ◽  
Coated Cotton

Abstract In this study, intumescent flame retardant coating of polyethylenimine/phytic acid (PEI/PA) with gradient structure was constructed on cotton fabric through facile layer-by-layer (LBL) assembly method. The LOI value of coated cotton fabric reached over 40% indicating excellent flame retardancy. Reasonable controlling the LBL assembly process of PEI/PA coating brought less influence to the physical properties of cotton fabrics. And the coated cotton fabric revealed good flame retardant washing durability. Thermogravimetric analysis results of coated cotton fabrics showed that PEI/PA flame retardant coating changed the thermal decomposition process and promoted char formation revealing the obviously condensed phase flame retardant action. SEM images of char residues revealed that PEI/PA flame retardant coating promoted to form the intumescent flame retardant (IFR) char layer showing obvious IFR action. This research provides novel strategy for the development of high-efficiency flame retardant cotton fabric with good durability and physical properties using simple LBL assembly method.

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.

Fabrication of superhydrophobic cotton fabrics through wrapping silica with plasma-induced grafting polymerization

2017 ◽  
Vol 89 (3) ◽  
pp. 401-410 ◽  
Author(s):  
Yongqiang Li ◽  
Chao Zou ◽  
Jianzhong Shao ◽  
Ya’nan Li
Keyword(s):  
Contact Angle ◽  
Water Contact Angle ◽  
Cotton Fabric ◽  
Photoelectron Spectroscopy ◽  
Contact Angle Measurement ◽  
Cotton Fabrics ◽  
Angle Measurement ◽  
Water Contact ◽  
Washing Durability ◽  
Before And After

Cotton fabric is commonly used in daily life, but it is easily wetted and contaminated by liquid. Herein, we present a simple and environmentally friendly plasma technology for hydrophobic modification of cotton fabric. In order to endow superhydrophobicity to cotton fabric, helium plasma inducing graft polymerization of 1,3,5,7-tetravinyl-1,3,5,7-tetramethylcyclotetrasiloxane (D4Vi) was utilized to wrap SiO2 particles on cotton fabrics. Cotton fabrics were successively dipped in silica sol and D4Vi, then treated by plasma. Cotton fabrics before and after modification were characterized by using field emission scanning electron microscopy, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and water contact angle measurement. The experimental results showed that the cotton-SiO2-D4Vi consisted of nanoscale SiO2 protrusions and low-surface-energy film polymerized by D4Vi. In addition, the one wrapped SiO2 of 161 nm presented excellent hydrophobicity, washing durability, and repellency toward different types of liquids with a water contact angle of 152°.

scholarly journals Environmentally Sustainable Flame Retardant Surface Treatments for Textiles: The Potential of a Novel Atmospheric Plasma/UV Laser Technology

2018 ◽  
Author(s):  
A. Richard Horrocks ◽  
Sara Eivazi ◽  
Maram Ayesh ◽  
Baljinder Kandola
Keyword(s):  
Flame Retardant ◽  
Sol Gel ◽  
Aqueous Media ◽  
Atmospheric Plasma ◽  
Sustainable Chemistry ◽  
Layer By Layer ◽  
Environmentally Sustainable ◽  
Before And After ◽  
Wet Processing ◽  
C 30

Conventional flame retardant (FR) application processes for textiles involve aqueous processing which is resource intensive in terms of energy and water usage. Recent research using sol-gel and layer-by-layer chemistries, while claimed to be based on more environmentally-sustainable chemistry, still require aqueous media with the continuing problem of water management and drying processes being required. This paper outlines the initial forensic work to characterise commercially produced viscose/flax, cellulosic furnishing fabrics which have had conferred upon them durable flame retardant (FR) treatments using a novel, patented atmospheric plasma/UV excimer laser facility for processing textiles with the formal name - Multiplexed Laser Surface Enhancement (MLSE) system. This system (MTIX Ltd., UK), is claimed to offer the means of directly bonding of flame retardant precursor species to the component fibres introduced either before plasma/UV exposure or into the plasma/UV reaction zone itself, thereby eliminating a number of wet processing cycles. Nine commercial fabrics, pre-impregnated with a semi-durable, proprietary FR finish and subjected to the MLSE process have been analysed for their flame retardant properties before and after a 40 °C 30 min water soak. For one fabric, the pre-impregnated fabric was subjected to a normal heat cure treatment which conferred the same level of durability as the plasma/UV-treated analogue. TGA and LOI were used to further characterise their burning behaviour and the effect of the treatment on surface fibre morphologies were assessed. Scanning electron microscopy indicated that negligible changes had occurred to surface topography of the viscose fibres occurred during plasma/UV excimer processing.

scholarly journals Construction of Biological Flame Retardant Layer on Cotton Fabric via Photografting of Nucleotide/Amino Acid Monomers

2021 ◽  
Author(s):  
yutong liu ◽  
Xiao Wang ◽  
Zhenbao Li ◽  
Ju Wei ◽  
Bing Du
Keyword(s):  
Flame Retardant ◽  
Cotton Fabric ◽  
Chemical Structure ◽  
Pyrolysis Temperature ◽  
Cotton Fabrics ◽  
Scanning Electron Micrographs ◽  
Double Bonds ◽  
H Nmr ◽  
Ft Ir ◽  
Synergistic Flame Retardant

Abstract The 5’-adenylicacid (AMP-Na2) is modified to introduce unsaturated double bonds for photografting onto cotton fabrics together with L-cysteine (L-Cys) monomer to prepare synergistic flame-retardant cotton fabrics. The chemical structure of AMP-Na2/L-Cys monomers, the surface morphology, residual carbon morphology, thermal property and flame retardant property of photografted flame retardant cotton fabrics are analyzed. FT-IR and 1H NMR spectra verified the AMP-Na2 and L-Cys monomers with unsaturated double bonds. Scanning electron micrographs revealed the carbon residue of photografted fiber maintains a natural curled and fibers shape. TGA showed the major pyrolysis temperature of photografted cotton fabric declined by 42℃, with the weight loss reduced by 21.6%, proving that good charring effect. The continuous burning and smoldering time of photografted cotton fabric are decreased to 0s. The experimental results indicate that AMP-Na2/L-Cys monomers can reveal good durability and remarkable flame retardancy property to cotton fabrics via facile treatment of photografting.

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.

Flame Retardant Finishing and Dyeing of Cotton Fabric in One Bath

2020 ◽  
Vol 7 (4) ◽  
pp. 9-14
Author(s):  
Pengshuang He ◽  
Chaohong Dong ◽  
Xiaoyan Chen ◽  
Peng Wang ◽  
Zhou Lu ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Flame Retardant ◽  
Cotton Fabric ◽  
Reactive Dyes ◽  
Treatment Temperature ◽  
Color Fastness ◽  
Dye Uptake ◽  
Flame Resistance ◽  
Saving Energy ◽  
Hydrogen Phosphite

Flame resistant cotton fabric is usually dyed first, and is then treated with a flame retardant by the pad-dry-cure technique. In this research, cotton fabric was treated with 2-(2-aminoethyl hydrogen phosphite)-4,6-dichloro-1,3,5-triazine (APDCT). APDCT contains s-triazine groups, which are the same used by reactive dyes. This process allows cotton fabric dyeing and flame retardant treatment to occur simultaneously, while decreasing treatment temperature, improving efficiency, and saving energy. Optimal treatment was determined by the percent dye uptake, fixation, and fabric flame resistance. The color fastness to rubbing of the treated cotton fabric was almost unchanged. The tensile strength of the treated cotton fabric was slightly reduced.

Sign in / Sign up

Export Citation Format

Share Document