scholarly journals Investigating the effect of self-cleaning treatment on the air permeability, stain removal and water repellency properties of functionalized double jacquard woven upholstery fabrics

2019 ◽  
Vol 70 (06) ◽  
pp. 512-518
Author(s):  
DUYGU YAVUZKASAP AYAKTA ◽  
NAZLI ÇAĞLAR CİNPERİ ◽  
HAKAN ÖZDEMİR
Keyword(s):  
Raw Materials ◽  
Sol Gel ◽  
Water Repellency ◽  
Air Permeability ◽  
Woven Fabrics ◽  
Cleaning Efficiency ◽  
Nano Tio2 ◽  
Stain Removal ◽  
Self Cleaning ◽  
Weave Pattern

Self-cleaning is the important and required function for the upholstery fabrics. At this research, which was not studied in the references, nano TiO2 coating was appliqued on 18 double faced woven fabrics produced with jacquard weaving technique with three different weft density, two different raw materials of warp yarns that are polyester and rayon, three different face weave pattern under the same conditions by using sol-gel method. All fabrics were stained with the same amount of coffee. Self-cleaning efficiency of the applied fabrics were tested at spectrophotometer by using K/S (Colour/Strength) values after waiting 6, 12 and 24 hours under artificial sunlight and stain removal ratios were calculated. The effects of the fibre type, weft setting and weave pattern on the air permeability of upholstery fabrics were investigated by variance analysis by means of Minitab 17.0. TiO2 application caused air permeability reduction of 18‒40% in polyester warp fabrics and 30‒47% in rayon warp fabrics. It was seen that self-cleaning property can be got at double faced polyester/cotton and rayon/cotton fabrics by using nano TiO2. After 24 hours sunlight exposure, the average stain removal rates were found as 74.8% for polyester warp fabrics and 66.7% for rayon warp fabrics. Also, it has been observed that TiO2 application imparts hydrophobic properties to all rayon and polyester warp fabrics.

STUDY OF WRINKLE RESISTANT, BREATHABLE, ANTI-UV NANOCOATED WOVEN POLYESTER FABRIC

2016 ◽  
Vol 23 (03) ◽  
pp. 1650003 ◽  
Author(s):  
HAFEEZULLAH MEMON ◽  
SOHAIL YASIN ◽  
NAZAKAT ALI KHOSO ◽  
SAMIULAH MEMON
Keyword(s):  
Sol Gel ◽  
Polyester Fabric ◽  
Air Permeability ◽  
Woven Fabrics ◽  
Visual Appearance ◽  
Gel Method ◽  
Sol Gel Method ◽  
Ftir Studies ◽  
Dispersion Of Nanoparticles

The multifunctional textiles are interesting areas to be researched on. In this paper, the effect of the fiber nanocoating on the wrinkle recovery, air permeability and anti-Ultraviolet (UV) property of different woven fabrics using sol–gel method has been studied. The sol–gel method has various advantages over other methods. Along with these properties, no change in visual appearance has also been discussed in this paper. The dispersion of nanoparticles of titanium was obtained into silica sol. The characterization of nanocoating was done using Field emission scanning electron micrograph (FESEM) and Fourier transform infrared spectroscopy (FTIR) studies. The fabric wrinkle recovery properties, air permeability and anti-UV performance were analyzed using three different immersion timings into the nanosol. The results revealed that both wrinkle recovery properties and anti-UV performance have increased with respect to immersing time of the nanocoating although a slight decrease in air permeability and whiteness index of the fabric was also observed.

scholarly journals Comparative study of multifunctional properties of synthesised ZnO and MgO NPs for textiles applications

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Saira Faisal ◽  
Shenela Naqvi ◽  
Muhammad Ali ◽  
Long Lin
Keyword(s):  
Low Cost ◽  
Sol Gel ◽  
Cotton Fabrics ◽  
Nano Particles ◽  
Single Type ◽  
Cleaning Efficiency ◽  
Zno Nps ◽  
Content Type ◽  
Stain Removal ◽  
Textile Products

Purpose Among various metal oxide nano particles, MgO NPs and ZnO nanoparticles (NPs) in particular are gaining increasing attention due to their multifunctional characteristics, low cost and compatibility with textile materials. Each type of nanoparticle excels over others in certain properties. As such, it is often crucial to carry out comparative studies of NPs to identify the one showing higher efficiency/output for particular applications of textile products. Design/methodology/approach In the investigation reported in this paper, ZnO NPs and MgO NPs were synthesised via sol-gel technique and characterised. For comparative analysis, the synthesised NPs were evaluated for multiple properties using standard procedures before and after being applied on cotton fabrics by a dip-pad-dry-cure method. Findings XRD and FTIR analyses confirmed the successful synthesis of ZnO and MgO NPs. Homogeneous formation of desired NPs and their dense and uniform deposition on the cotton fibre surface were observed using SEM. ZnO NPs and MgO NPs coatings on cotton were observed to significantly enhance self-cleaning/stain removal properties achieving Grade 5 and Grade 4 categories, respectively. In terms of ultraviolet (UV) protection, ZnO or MgO NP coated fabrics showed UPF values of greater than 50, i.e. excellent in blocking UV rays. MgO NPs exhibited 20% cleaning efficiency in treating reactive dye wastewater against ZnO NPs which were 4% efficient in the same treatment, so MgO was more suitable for such type of treatments at low cost. Both NPs were able to impart multifunctionality to cotton fabrics as per requirement of the end products. However, ZnO NPs were better for stain removal from the fabrics while MgO NPs were appropriate for UV blocking. Originality/value It was therefore clear that multifunctional textile products could be developed by employing a single type of cost effective and efficient nano particles.

Study on the Photocatalytic Degradation of Ammonia Nitrogen in Aquaculture Wastewater by Sn4+-Doped Nano-TiO2 under UV Irradiation

2011 ◽  
Vol 347-353 ◽  
pp. 2351-2355 ◽  
Author(s):  
Xiao Cai Yu ◽  
Peng Fei Zhu ◽  
Min Zhang ◽  
Ji Yao Guo ◽  
Xv Zheng
Keyword(s):  
Photocatalytic Degradation ◽  
Calcination Temperature ◽  
Uv Irradiation ◽  
Raw Materials ◽  
Removal Rate ◽  
Sol Gel ◽  
Ammonia Nitrogen ◽  
Tetrabutyl Titanate ◽  
Nano Tio2 ◽  
Aquaculture Wastewater

The Sn4+-doped nano-TiO2 particles with various amounts of dopant Sn4+ irons was prepared by sol-gel method using tetrabutyl titanate(TEOT) as one of the primary raw materials at different calcination temperatures (400-700°C). The products were characterized by XRD and SEM, which revealed that the crystal structure of Sn4+-doped nano-TiO2 changes from anatase to rutile with the calcination temperature increasing, and the nanoparticles diameter was around 10-30 nm. The photocatalytic degradation of ammonia nitrogen in aquaculture wastewater was investigated by using Sn4+-doped nano-TiO2 under UV irradiation. The experimental results can be stated as follows: when the ratio of dopant Sn4+ was 3% wt, the calcination temperature of Sn4+-doped nano-TiO2 was 500 °C, the dosage of Sn4+-doped nano-TiO2 was 0.8 g/L, respectively, if the reaction time may last 4h, the removal rate of ammonia-N was expected to reach 87.13%.

scholarly journals Permeability and Wicking Properties of Modal and Lyocell Woven Fabrics Used for Clothing

2017 ◽  
Vol 12 (1) ◽  
pp. 155892501701200 ◽  
Author(s):  
Hakan Ozdemir
Keyword(s):  
Structural Parameters ◽  
Water Vapor Permeability ◽  
Air Permeability ◽  
Woven Fabrics ◽  
Raw Material ◽  
Weft Yarn ◽  
Vapor Permeability ◽  
Yarn Twist ◽  
Lyocell Fibers ◽  
Weave Pattern

In this study, air permeability, water vapor permeability and wicking properties of certain woven fabrics, which are important comfort properties for clothes and garments, have been investigated. The effects of raw material (modal, Lyocell), weave pattern (plain, 2/2 twill, 1/3 twill, 2/2 matt) and weft yarn density (18, 22, 26) on these properties have been analysed graphically and statistically. The comfort characteristics of fabrics (permeability and wicking properties) are closely associated with the changes in their structural parameters: 2/2 matt and plain woven fabrics, where porosities are high, have better permeability and wicking properties. Increasing weft yarn density lead to decreases in porosity, resulting in decreased permeability and wicking properties. Increasing yarn twist increased the porosity of the fabrics. Lyocell fabrics showed improved permeability and wicking properties over modal fabrics due to Lyocell fibers’ high percentage of fibrillary structure.

Analysis of Mechanical Properties for 2D Woven Kenaf Composite

2014 ◽  
Vol 660 ◽  
pp. 125-129 ◽  
Author(s):  
Md. Saidin Wahab ◽  
Muhammad Nazri Rejab ◽  
Mohd Pahmi Saiman
Keyword(s):  
Mechanical Properties ◽  
Natural Fiber ◽  
Raw Materials ◽  
Woven Fabrics ◽  
Element Analysis ◽  
Weave Structure ◽  
Physical Testing ◽  
Modeling Software ◽  
Weave Pattern ◽  
Woven Kenaf

Woven composite based on natural fiber increasingly used for many applications in industries because of their advantages such as good relative mechanical properties and renewable resources, but there are some issues as cost and protracted development period to perform reliability evaluation by experimental with real scale. Predictive modeling technique is use to minimize the need for physical testing, shorten design timescales and provide optimized designs. Mechanical properties of woven fabrics for technical textile depend on a) type of raw materials b) type and count of warp and weft yarns c) yarn density and d) the type of weave structure. The effect of fabric architecture to the mechanical properties is investigated. Woven kenaf composite is modeled using the modeling software to get the properties of the model. Further, the model is analyzed using finite element analysis to predict the mechanical properties of the woven kenaf composite. In addition, the effect of the combination of yarn size and weave pattern to the woven kenaf composite is stated base on the mechanical properties to predict the optimum structure of woven kenaf composite.

The Preparation of Nitrogen-Doped Nano-TiO2 for Self-Cleaning Fabric

2012 ◽  
Vol 472-475 ◽  
pp. 2189-2194 ◽  
Author(s):  
Jia Guang Meng ◽  
Huan Li ◽  
Chao Zhi
Keyword(s):  
Sol Gel ◽  
Hydroxylamine Hydrochloride ◽  
Tetrabutyl Titanate ◽  
Transmission Electron Micrograph ◽  
Doping Amount ◽  
Nano Tio2 ◽  
Nitrogen Doped ◽  
Transmission Electron ◽  
Self Cleaning ◽  
And Performance

By sol-gel method, nitrogen-doped nano-TiO2 photocatalyst are prepared with a series of different calcining temperature and different doping amount, using tetrabutyl titanate as a titanium source and hydroxylamine hydrochloride as a nitrogen source. And more, the photocatalysts were characterized by X-ray diffraction(XRD), Transmission electron micrograph(TEM) to analyze the microstructure and performance. We ensured the optimal process to prepare nitrogen-doped nano-TiO2 for self-cleaning fabric. At last, we are carried out the test of self-cleaning effect.

Epitaxial Growth of Sr0.3Ba0.7Nb2O6 Thin Films Prepared by Sol-Gel Process

1999 ◽  
Vol 606 ◽  
Author(s):  
Keishi Nishio ◽  
Jirawat Thongrueng ◽  
Yuichi Watanabe ◽  
Toshio Tsuchiya
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Epitaxial Growth ◽  
Raw Materials ◽  
Substrate Surface ◽  
Sol Gel ◽  
Tungsten Bronze ◽  
Monomethyl Ether ◽  
Tetragonal Tungsten Bronze ◽  
Sol Gel Process

AbstructWe succeeded in the preparation of strontium-barium niobate (Sr0.3Ba0.7Nb2O6 : SBN30)that have a tetragonal tungsten bronze type structure thin films on SrTiO3 (100), STO, or La doped SrTiO3 (100), LSTO, single crystal substrates by a spin coating process. LSTO substrate can be used for electrode. A homogeneous coating solution was prepared with Sr and Ba acetates and Nb(OEt)5 as raw materials, and acetic acid and diethylene glycol monomethyl ether as solvents. The coating thin films were sintered at temperature from 700 to 1000°C for 10 min in air. It was confirmed that the thin films on STO substrate sintered above 700°C were in the epitaxial growth because the 16 diffraction spots were observed on the pole figure using (121) reflection. The <130> and <310> direction of the thin film on STO were oriented with the c-axis in parallel to the substrate surface. However, the diffraction spots of thin film on LSTO substrate sintered at 700°C were corresponds to the expected pattern for (110).

PENGGUNAAN TiO2 PARTIKEL NANO HASIL SINTESIS BERBASIS AIR MENGGUNAKAN METODA SOL-GEL PADA BAHAN KAPAS SEBAGAI APLIKASI UNTUK TEKSTIL ANTI UV

Arena Tekstil ◽  
2013 ◽  
Vol 28 (1) ◽  
Author(s):  
Maya Komalasari ◽  
Bambang Sunendar
Keyword(s):  
Fourier Transform ◽  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Sol Gel ◽  
Crosslinking Agent ◽  
X Ray Diffraction ◽  
Nano Tio2 ◽  
X Ray ◽  
Infra Red ◽  
Scanning Electron

Partikel nano TiO2 berbasis air dengan pH basa telah berhasil disintesis dengan menggunakan metode sol-gel dan diimobilisasi pada kain kapas dengan menggunakan kitosan sebagai zat pengikat silang. Sintesis dilakukan  dengan prekursor TiCl4 pada konsentrasi 0,3 M, 0,5 M dan 1 M, dan menggunakan templat kanji dengan proses kalsinasi pada suhu 500˚C selama 2 jam. Partikel nano TiO2 diaplikasikan ke kain kapas dengan metoda pad-dry-cure dan menggunakan kitosan sebagai crosslinking agent. Berdasarkan hasil Scanning Electron Microscope (SEM),diketahui bahwa morfologi partikel TiO2 berbentuk spherical dengan ukuran nano (kurang dari 100 nm). Karakterisasi X-Ray Diffraction (XRD) menunjukkan adanya tiga tipe struktur kristal utama, yaitu (100), (101) dan (102) dengan fasa kristal yang terbentuk adalah anatase dan rutile. Pada karakterisasi menggunakan SEM terhadap serbuk dari TiO2 yang telah diaplikasikan ke permukaan kain kapas, terlihat adanya imobilisasi partikel nano TiO2 melalui ikatan hidrogen silang dengan kitosan pada kain kapas. Hasil analisa tersebut kemudian dikonfirmasi dengan FTIR (Fourier Transform Infra Red) yang hasilnya memperlihatkan puncak serapan pada bilangan gelombang 3495 cm-1, 2546 cm-1, dan 511 cm-1,  yang masing-masing diasumsikan sebagai adanya vibrasi gugus fungsi O-H, N-H dan Ti-O-Ti. Hasil SEM menunjukkan pula bahwa kristal nano yang terbentuk diantaranya adalah fasa rutile , yang berdasarkan literatur terbukti dapatberfungsi sebagai anti UV.

scholarly journals Hydrolytic Modification of SiO2 Microspheres with Na2SiO3 and the Performance of Supported Nano-TiO2 Composite Photocatalyst

Materials ◽  
2021 ◽  
Vol 14 (10) ◽  
pp. 2553
Author(s):  
Yu Tu ◽  
Weihua Ao ◽  
Chunhong Wang ◽  
Tianyu Ren ◽  
Lijuan Zhang ◽  
...  
Keyword(s):  
Sol Gel ◽  
Active Surface ◽  
Hydroxyl Groups ◽  
Nano Tio2 ◽  
Amorphous Sio2 ◽  
Composite Photocatalyst ◽  
Sio2 Shell ◽  
Functional Efficiency ◽  
Sio2 Microspheres ◽  
Better Than

Modified microspheres (SiO2-M) were obtained by the hydrolytic modification of silicon dioxide (SiO2) microspheres with Na2SiO3, and then, SiO2-M was used as a carrier to prepare a composite photocatalyst (SiO2-M/TiO2) using the sol-gel method; i.e., nano-TiO2 was loaded on the surface of SiO2-M. The structure, morphology, and photocatalytic properties of SiO2-M/TiO2 were investigated. Besides, the mechanism of the effect of SiO2-M was also explored. The results show that the hydrolytic modification of Na2SiO3 coated the surface of SiO2 microspheres with an amorphous SiO2 shell layer and increased the quantity of hydroxyl groups. The photocatalytic performance of the composite photocatalyst was slightly better than that of pure nano-TiO2 and significantly better than that of the composite photocatalyst supported by unmodified SiO2. Thus, increasing the loading capacity of nano-TiO2, improving the dispersion of TiO2, and increasing the active surface sites are essential factors for improving the functional efficiency of nano-TiO2. This work provides a new concept for the design of composite photocatalysts by optimizing the performance of the carrier.

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