A Study on the Self-Cleaning effect of the Cotton with Nano-TiO2

2013 ◽  
Vol 821-822 ◽  
pp. 440-445
Author(s):  
Shuang Li ◽  
Wei Guo Dong ◽  
Jan Hui Ma

Immerse cotton fabric into the TiO2 sol directly, which is produced by Titanate hydrolysis. Make cotton fabric and nano-TiO2 bind directly, so that the treated cotton fabric obtain a better decomposition of organic stains function. Combination fastness of fabric and TiO2 , self-cleaning function , regain , breaking strength , permeability , wrinkle recovery angle were tested.The results showed that: the fabric coated with nano-TiO2 has a self-cleaning function, good fastness, wrinkle recovery angle increases, moisture regain, tensile strength and permeability decrease slightly.

2011 ◽  
Vol 175-176 ◽  
pp. 624-628 ◽  
Author(s):  
Tie Ling Xing ◽  
Jie Liu ◽  
Guo Qiang Chen ◽  
Jia Yong Sheng ◽  
Dao Quan Sun ◽  
...  

In order to take the advantage of the specific property of sericin to improve wear property of cotton fabric, cotton fabric was finished with sericin. Sericin was fixed onto the surface of cotton fabric in the presence of poly-carboxylic acids (CA and BTCA) at high temperature using a pad-dry-cure process. The effects of catalyst concentration, pH value, curing temperature and curing time on the finish were investigated. The optimized finishing conditions for cotton fabric were obtained. The weight gain of treated fabric with BTCA as crosslinking agent was higher than CA. The whiteness, breaking strength, moisture regain, permeability to gas and crease recovery properties of treated fabrics were measured. The results showed that wrinkle recovery angle evidently increased, and the wrinkle recover angle of BTCA combined secrin treated fabric was higher than CA. The breaking strength, moisture regain and whiteness of the treated fabric slightly decreased, the permeability to gas of cotton fabrics were not changed.


2013 ◽  
Vol 8 (4) ◽  
pp. 155892501300800
Author(s):  
Ali Nazari ◽  
Majid Montazer ◽  
Navid Nasirizadeh ◽  
Behnam Namiranian

In this study, cellulase pre-treated mercerized cotton (EMC) fabrics were treated with citric acid (CA), butane tetra carboxylic acid (BTCA) and nano TiO2 (NTO) to produce fabric with enhanced cross-linking, self-cleaning, and antibacterial properties. However treatment of EMC fabrics with NTO/CA/BTCA has not been reported. The NTO particles were stabilized on the cotton surface using CA/BTCA cross-linking agents. In order to create optimum dry crease recovery angle (DCRA), self-cleaning based on (ΔE*) and bacteria reduction against Gram-positive and Gram-negative bacteria, the appropriate models were obtained based on Design of Expert software. The roles of CA, BTCA and NTO concentrations in cross-linking, self-cleaning, and antibacterial properties of the EMC fabric were investigated using response surface methodology (RSM). Overall, the cellulase pre-treatment of the mercerized cotton fabrics improved the antibacterial activity against Staphylococcus aureus and Escherichia coli bacteria, and also enhanced DCRA and self-cleaning properties significantly as compared with control samples. Also, reflectance spectra analyses (200–400 nm) and Scanning Electron Microscopy (SEM) were employed to confirm the NTO particles on the EMC fabric surface.


2013 ◽  
Vol 14 (6) ◽  
pp. 996-1000 ◽  
Author(s):  
Salar Zohoori ◽  
Loghman Karimi

2009 ◽  
Vol 16 (05) ◽  
pp. 715-721 ◽  
Author(s):  
CHAOXIA WANG ◽  
LI CHEN

The silica sol was applied onto 1, 2, 3, 4-butanetetracarboxylic acid (BTCA) finished cotton fabrics with the attempt to improve the physical properties especially the tensile strength which had a big loss in the previous anti-crease finishing processing. The parameters including the dosage of the coupling agent, the concentration and pH of the sol and the processing methods were studied in detail. Compared to the sample finished with BTCA, 11.8% of the increase in the crease recovery angle and 18.6% of the enhancement in the tensile strength of the cotton fabric also treated with silica sol in the better selected conditions were obtained. The abrasion resistance was also improved.


2019 ◽  
Vol 50 (3) ◽  
pp. 278-292 ◽  
Author(s):  
Khaled Mostafa ◽  
Heba Ameen ◽  
Mahmoud Morsy ◽  
Amal el-ebiassy ◽  
Azza El-Sanabary ◽  
...  

To minimize the serious defects of durable press finishing of cellulosic textiles with respect to the great loss in strength properties, new pioneering strengthening approach of cotton fabric based on our previously prepared starch nanoparticles of size around 80–100 nm was used. For this purpose, cotton fabrics were treated with different concentrations of starch nanoparticles via coating technique using pad-dry-cure method, at which the starch nanoparticles are attached to the fabrics with the use of a padder adjusted to appropriate pressure and speed, followed by drying and curing. Fabric stiffness, surface roughness, tensile strength, elongation at break, abrasion resistance, wrinkle recovery angles, add-on %, and degree of whiteness as well as durability of treated fabrics were fully explored. SEM was used for detecting the change in surface morphology of reinforced coated fabric. The results obtained reflect the following findings: (a) all fabric performance like tensile strength, stiffness, wrinkle recovery angle, abrasion resistance and add on % were improved for coated fabrics with starch nanoparticles in comparison with untreated fabric, except that of surface roughness; (b) SEM confirmed the change in surface morphology of cotton fabric after reinforcement treatment using starch nanoparticles; (c) the dry wrinkle recovery angle and tensile strength of cotton fabrics treated in presence of 30 g/l starch nanoparticles are slightly decreased after 10 washing cycles as compared with untreated fabric; and (d) starch nanoparticles introduce an advance in textile finishing with respect to the above-mention fabric performance except that of surface roughness.


2011 ◽  
Vol 287-290 ◽  
pp. 2705-2708 ◽  
Author(s):  
Yun Hui Xu ◽  
Yong Jin Deng

For improving wear properties of cotton fabric and exploiting ecological cotton textile with multifunction, cotton fabric was modified with anthraquinone extract of aloe. Aloe anthraquinone was fixed onto the surface of cotton fabric through the esterification crosslink of citric acid at high temperature using a pad-dry-cure process. The effects of citric acid concentration, catalyst concentration, aloe anthraquinone concentration and curing temperature on the treatment were mainly investigated. The optimized treating parameters for cotton fabric were obtained. The weight gain of modified fabric was significantly affected by the technical conditions. The breaking strength, moisture adsorption, wrinkle recovery angle, UV resistance and antibacterial properties of treated fabrics were respectively measured. The results showed that the wrinkle recovery angle of treated fabric markedly increased, whereas the breaking strength slightly decreased, and the moisture adsorption of fabrics kept almost unchanged. Additionally, the ultraviolet resistance and antibacterial property of modified cotton fabric became strong.


2011 ◽  
Vol 331 ◽  
pp. 382-385
Author(s):  
Hao Wang ◽  
Chen Huang ◽  
Na Liu

Cotton fabric was treated by chitosan and epoxy-silicone finishing agents to improve its wrinkle-resistant property. The study showed that mixed finish by two agents can provide higher wrinkle-resistance than single finish when applied to the cotton fabrics due to their synergistic effect. In the wrinkle-resistant finishing process, four main factors (chitosan mass concentration, organosilicon volume concentration, baking temperature and baking time) influencing finish effect were discussed and then process conditions were determined. After optimum process treatment, the wrinkle-recovery angle of mixed finished cotton fabric increased evidently while its whiteness and breaking strength dropped a little. In addition, the addition of organosilicon can improve fabric softness. After washed for 30 times, delay wrinkle-recovery angle of mixed finished fabric was 54° higher than that of native fabric, and the treated cotton exhibited good washing resistance.


2017 ◽  
Vol 728 ◽  
pp. 246-251
Author(s):  
Siripan Metanawin ◽  
Sureerak Oney ◽  
Tirapong Chaichalermvong ◽  
Tanapak Metanawin

This study investigates the effects of the hybrid TiO2 polymerin PET fiber on the mechanical properties, thermal properties, and self-cleaning properties. The results showed that the tensile strength of the hybrid TiO2/PET composite fibers decreased with the increasing contents of TiO2 in polymer matrix. The contents of TiO2 in the composite fibers had no impact on the thermal properties of the fibers, but the %Crystalline of the composite fibers increased with the contents of TiO2 in the composite fibers. The photocatalytic characteristics of the composite fibers were studied through self-cleaning properties. The presence of contents of hybrid TiO2 in the PET fiber significantly showed the improvement of the self-cleaning properties under UV-A radiation. The hybrid TiO2/PET fibers in the presence of TiO2 10wt% showed the best results of self-cleaning under the 24 hours of UV radiation exposure period.


Materials ◽  
2021 ◽  
Vol 14 (22) ◽  
pp. 6998
Author(s):  
Muhammad Irfan ◽  
Muhammad Y. Naz ◽  
Muhammad Saleem ◽  
Malik Tanawush ◽  
Adam Głowacz ◽  
...  

Nonthermal plasma processing is a dry, environment-friendly and chemical-free method of improving the wettability, adhesion, self-cleaning and dying quality of fabrics without affecting their bulk properties. This study presents a green synthesis and coating method for the immobilization of nanoparticles of ZnO on the nonthermal plasma functionalized cotton fabric. The self-cleaning activity of ZnO-coated cotton was then optimized statistically. The ultraviolet protection and antimicrobial activity of the optimized and a control sample were also elaborated in this study. Psidium guajava Linn (guava) plant extract and zinc chloride were used in the ultrasonic biosynthesis of ZnO nanoparticles and concurrent immobilization over plasma functionalized cotton. Sodium hydroxide was used as a reaction accelerator. Statistical complete composite design (CCD) based on the amount of ZnCl2, NaOH and plasma exposure time was used to optimize the role of input parameters on the self-cleaning ability of the coated cotton. Methylene blue in water was used as a sample pollutant in the self-cleaning study. The ZnO-coated cotton showed notably high self-cleaning activity of 94% and a UV protection factor of 69.87. The antimicrobial activity against E. Coli and S. Aureus bacteria was also appreciably high compared to the control.


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