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.

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.

In Situ Synthesis of SiO2 Nanoparticles by Sol-Gel Method on Cotton Fabrics and Investigation of their Physical and Chemical Properties

2021 ◽  
Vol 891 ◽  
pp. 37-42
Author(s):  
Sheila Shahidi ◽  
Hakimeh Mohammadbagherloo ◽  
Seyedmohammad Elahi ◽  
Sanaz Dalalsharifi ◽  
Rattanaphol Mongkholrattanasit
Keyword(s):  
Flame Retardant ◽  
Water Drop ◽  
Sol Gel ◽  
Cotton Fabrics ◽  
In Situ Synthesis ◽  
Order Structure ◽  
Gel Method ◽  
Sol Gel Method ◽  
Flame Retardant Properties

In this paper, the sol-gel method was used for in-situ synthesis of SiO2 nanoparticles (NPs) on cotton fabrics with tetraethyl orthosilicate (TEOS) in the presence of acid and alkaline indicators. The samples were characterized using by (X-ray diffraction) XRD, (scanning electron Microscopy) SEM, (Inductively coupled plasma) ICP, water drop test and also the flame retardant properties were studied by char yield. The SEM images showed that the nanoparticles are spherical in shape and the acidity or alkalinity of the medium has an effect on the formation of particles. The XRD patterns showed the typical diffraction of amorphous SiO2 (Si-O short-order structure), also ICP analysis showed that by washing the fabrics, the nanoparticles are still present on the fabric, and this indicated the stability of the washing of the fabrics impregnated with the nanoparticles. By in-situ synthesis of SiO2 nanoparticles, the flame retardant properties have been improved significantly and the amount of residual char was increased and samples were observed to be hydrophilic.

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.

Research on the Multifunction Fabric Loaded with Nano-ZnO and β-Cyclodextrin

2011 ◽  
Vol 332-334 ◽  
pp. 1439-1442
Author(s):  
Chun Mei Wang ◽  
Jin Xin He
Keyword(s):  
Weight Gain ◽  
Photocatalytic Degradation ◽  
Cotton Fabric ◽  
Cotton Fabrics ◽  
Bacterial Activity ◽  
Raw Material ◽  
Nano Zno ◽  
Gain Rate ◽  
Weight Gain Rate

Nano-ZnO sol solution was prepared by using Zn(CH3COO)2•2H2O as raw material and β-cyclodextrin (β-CD) was added into the sol, then cotton fabric was treaded with the sol by pad-dry-cure technique. Moreover, the fixation fastness of the composite sol on the fabric was improved by adding the adhesives. Based on the tests of anti-UV, photocatalysis, antibacterial and weight gain rate after adsorbing essence, the results showed that the treated cotton fabrics added with β-CD had better adsorbability to essence, anti-bacterial activity, photocatalytic degradation to formaldehyde and excellent anti-UV property.

A Novel Method for Preparing Electroconductive Cotton Fabric

2011 ◽  
Vol 287-290 ◽  
pp. 2713-2716 ◽  
Author(s):  
Feng Wang ◽  
Bao Ran Li ◽  
Yue Qi ◽  
Sheng Dong Liu ◽  
Li Juan Wang
Keyword(s):  
Cotton Fabric ◽  
Electroless Plating ◽  
Electroless Nickel ◽  
Cotton Fabrics ◽  
The Novel ◽  
Electroless Nickel Plating ◽  
Nickel Plating ◽  
Cotton Fibres ◽  
Naoh Solution ◽  
Novel Method

Cotton fabrics were used as substrate to develop an electroconductive textile. Due to hydrophilia and porosity of cellulose, a novel electroless nickel plating process was attempted, in which activation and electroless plating were combined. In order to improve the wettability of cotton fibres, specimens were treated by NaOH solution and were bleached in NaClO solution. Then, the treated fabric was plated by using the novel process. The surface resistivity of the plated specimens reached to 15.34 mΩ·cm, which indicated the plated cotton fabrics have good conductivity.

In situ generation and deposition of nano-ZnO on cotton fabric by hyperbranched polymer for its functional finishing

2013 ◽  
Vol 83 (15) ◽  
pp. 1625-1633 ◽  
Author(s):  
Desuo Zhang ◽  
Ling Chen ◽  
Di Fang ◽  
Guoyang William Toh ◽  
Xinxia Yue ◽  
...  
Keyword(s):  
Cotton Fabric ◽  
Hyperbranched Polymer ◽  
Nano Zno ◽  
In Situ Generation

Conductivity, superhydrophobicity and mechanical properties of cotton fabric treated with polypyrrole by in-situ polymerization using the binary oxidants ammonium Peroxodisulfate and ferric chloride

2018 ◽  
Vol 89 (12) ◽  
pp. 2376-2394 ◽  
Author(s):  
Suhyun Lee ◽  
Chung Hee Park
Keyword(s):  
Mechanical Properties ◽  
Surface Temperature ◽  
Cotton Fabric ◽  
Ferric Chloride ◽  
In Situ Polymerization ◽  
Cotton Fabrics ◽  
Heating Performance ◽  
Scale Roughness ◽  
Ammonium Peroxodisulfate

In this study, polypyrrole deposition and a superhydrophobic coating were applied to cotton fabrics to develop a self-cleaning and conductive fabric with electric heating performance. The binary oxidants ammonium peroxodisulfate and ferric chloride were introduced during the polymerization to adjust the size of the polypyrrole particles for creating diverse nano-scale roughness on the surface of the cotton fabrics and to prevent degradation in the mechanical properties of textiles. The in-situ polymerization of polypyrrole that introduced the binary oxidants succeeded in depositing polypyrrole particles on the surface of the cotton fabrics. Binary oxidants formed small polypyrrole particles contrary to the single oxidants. In terms of conductivity, the surface resistivity decreased as the FeCl3 ratio in the oxidants increased. The binary oxidants led to a similar level of conductivity even though the amount of polypyrrole deposition was less than that in the case of the single oxidant. The electrical heating performance improved as the surface resistance was decreased, resulting in an up to 20℃ increase in the surface temperature. On the other hand, the duration of the electro-heating effect was shorter with higher surface temperature. In terms of wettability, a superhydrophobicity with a contact angle of 150° or higher and a shedding angle of less than 10° was achieved under all oxidant conditions because of the nano-scale roughness caused by polypyrrole. Polypyrrole deposition reduced the tensile strength of the cotton fabric and increased its stiffness. The binary oxidants exhibited smaller changes in the mechanical properties of the textile than the single oxidants.

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.

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.

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