Preparation and application of fluorocarbon polymer/SiO2 hybrid materials, part 2: Water and oil repellent processing for cotton fabrics by sol–gel method

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.

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Preparation and the PL Properties of Er3+ - Ce3+ Co-Doped TiO2 Powders

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.528.30 ◽

2014 ◽

Vol 528 ◽

pp. 30-33

Author(s):

Ling Yun Bai ◽

Long Fa Jiang ◽

Jun Huai Xiang

Keyword(s):

Hybrid Materials ◽

Sol Gel ◽

Gel Method ◽

Sol Gel Method ◽

Hybrid Matrix ◽

Peak Intensity ◽

Dispersion Effects ◽

Co Doped

The 0.5-3.0 mol% Er3+-Ce3+ co-doped TiO2 powders have been prepared by sintering the hybrid materials Er0.5Ce0.5(AA)3phen-doped TiO2/PMMA, which were prepared by sol-gel method, using the modified titanium (IV) n-butoxide [Ti(O-Bu)4-x(AAPhen)x] as precursors which were given by the chelate reaction between Ti(O-Bu)4, AA and Phen at 70°C. The hybrid matrix TiO2/PMMA improved the dispersion of Er3+, which caused an enhancement in the photoluminescence (PL) peak intensity at 1.53 mm of the 1 mol% Er (AA)3phen-doped TiO2/PMMA powders sintered at 700 °C of about 23 times higher than that only had TiO2 as its matrix. When co-doped with Ce3+, the above ratio of the PL peak intensity was raised to 75 times, which illustrated the obvious sensitization and dispersion effects of Ce3+ on Er3+.

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SiO2reinforced HDPE hybrid materials obtained by the sol-gel method

Journal of Applied Polymer Science ◽

10.1002/app.39891 ◽

2013 ◽

Vol 131 (6) ◽

pp. n/a-n/a ◽

Cited By ~ 2

Author(s):

Wenzhong Ma ◽

Fanghong Gong ◽

Chunlin Liu ◽

Guoliang Tao ◽

Jianping Xu ◽

...

Keyword(s):

Hybrid Materials ◽

Sol Gel ◽

Gel Method ◽

Sol Gel Method

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Synthesis of PCEC-CaO-SiO2 Hybrid Materials by Sol-Gel Method

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.898.37 ◽

2014 ◽

Vol 898 ◽

pp. 37-40

Author(s):

Xiao Tian Ke ◽

Cao Huang ◽

Jin Ling Zhang ◽

Gang Wu

Keyword(s):

Compressive Strength ◽

Hybrid Materials ◽

Hybrid Material ◽

Sol Gel ◽

Brittle Crack ◽

Gel Method ◽

Sol Gel Method ◽

Organic Components ◽

End Groups

PCEC-CaO-SiO2hybrid material was synthesized by a two steps method. FTIR results proved the structure of the telechelic PCEC with triethoxysilane-propyl end groups synthesized in the first step. Then the PCEC-CaO-SiO2hybrid material was synthesized by Sol-gel method. The chemical link between the functionalized polymer and the organic components prevent the hybrid materials brittle crack. The compressive strength was increased with the inorganic contents increasing in the hybrid materials. The hydrophilic PEG contents of PCEC accelerate the hydroxyapatite deposition on the hybrid materials after it was soaked in the SBF for a period of time.

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Ultraviolet resistant/antiwrinkle finishing of cotton fabrics by sol-gel method

Journal of Applied Polymer Science ◽

10.1002/app.34289 ◽

2011 ◽

Vol 122 (3) ◽

pp. 2090-2098 ◽

Cited By ~ 11

Author(s):

Chenghui Zheng ◽

Guoqiang Chen ◽

Zhenming QI

Keyword(s):

Sol Gel ◽

Cotton Fabrics ◽

Gel Method ◽

Sol Gel Method

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Effect of hybrid phosphorus-doped silica thin films produced by sol-gel method on the thermal behavior of cotton fabrics

Polymer Degradation and Stability ◽

10.1016/j.polymdegradstab.2011.01.013 ◽

2011 ◽

Vol 96 (4) ◽

pp. 483-490 ◽

Cited By ~ 90

Author(s):

G. Brancatelli ◽

C. Colleoni ◽

M.R. Massafra ◽

G. Rosace

Keyword(s):

Thin Films ◽

Thermal Behavior ◽

Sol Gel ◽

Cotton Fabrics ◽

Gel Method ◽

Sol Gel Method ◽

Silica Thin Films ◽

Phosphorus Doped

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Synthesis of Fluoro-Containing Superhydrophobic Cotton Fabric with Washing Resistant Property Using Nano-SiO2 Sol-Gel Method

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.121-122.23 ◽

2010 ◽

Vol 121-122 ◽

pp. 23-26 ◽

Cited By ~ 10

Author(s):

Li Fen Hao ◽

Qiu Feng An ◽

Wei Xu ◽

Qian Jin Wang

Keyword(s):

Silica Nanoparticles ◽

Cotton Fabric ◽

Sol Gel ◽

Cotton Fabrics ◽

Water Repellent ◽

Water Contact ◽

Gel Method ◽

Sol Gel Method ◽

Washing Durability ◽

Reactive Groups

A superhydrophobic complex coating for cotton fabrics based on silica nanoparticles and new fluoroalkylsiloxane polymer was reported here. The complex thin film was prepared through sol-gel method using cotton fabrics as a substrate. Silica nanoparticles in the coating made the textile surface much rougher, and new fluoroalkylsiloxane polymer with reactive groups on the top layer of the surface lowered the surface free energy and enhanced the binding between silica nanoparticles and the fluoro-containing polymer. Textiles coated with this coating showed excellent water repellent property, and water contact angle (CA) increased from 138° on the pure fluoroalkylsiloxane polymer treated cotton fabric up to 156.5° on complex one. Moreover, this superhydrophobic complex coating possesses favorable washing durability and its CA still retain 106° after 20 times of soaping operations.

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Removal of dyes from water using chitosan hydrogel/SiO2 and chitin hydrogel/SiO2 hybrid materials obtained by the sol–gel method

Journal of Hazardous Materials ◽

10.1016/j.jhazmat.2010.11.097 ◽

2011 ◽

Vol 186 (1) ◽

pp. 932-939 ◽

Cited By ~ 95

Author(s):

Guillermo J. Copello ◽

Andrea M. Mebert ◽

M. Raineri ◽

Mariela P. Pesenti ◽

Luis E. Diaz

Keyword(s):

Hybrid Materials ◽

Sol Gel ◽

Chitosan Hydrogel ◽

Gel Method ◽

Sol Gel Method

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Pašattīroši audumi: kas tie ir un kāpēc tādi nepieciešami?

Material Science and Applied Chemistry ◽

10.7250/msac-2018-0011 ◽

2018 ◽

Vol 35 ◽

pp. 216-232

Author(s):

Raivis Eglītis ◽

Gundars Mežinskis ◽

Ieva Buiķe

Keyword(s):

Sol Gel ◽

Cotton Fabrics ◽

Gel Method ◽

Sol Gel Method ◽

Textile Materials ◽

Institute Of Design ◽

Technical University ◽

Self Cleaning ◽

Zno And Tio2 Nanoparticles ◽

Silicate Materials

Pašattīroši audumi ir tekstilmateriāli, kuriem piemīt spēja ārēju vides faktoru iedarbībā atbrīvot savu virsmu no dažādiem piesārņojumiem. Šādi audumi ļauj samazināt ūdens un enerģijas patēriņu, kas saistīts ar drēbju mazgāšanu, samazināt infekciju risku, pateicoties to biocīdām īpašībām, kā arī pasargā cilvēkus no UV starojuma. Papildus tam šādus audumus arī būtu grūtāk saslapināt; tas mūsdienu mitrajā klimatā samazinātu diskomfortu no salijušām drēbēm. Šādus efektus pašattīroši audumi iegūtu ar tādiem mehānismiem kā fotokatalīze un superhidrofobitāte. Lai audumi iegūtu augstāk minētās īpašības, piemērotākie ir ZnO un TiO2 nanodaļiņu veidotie pārklājumi. Savukārt pārklājumu ieguvei jāizmanto sola-gēla metode, kas sniedz iespēju izveidot homogēnus pārklājumus pie temperatūrām, kuras iztur organiskas dabas materiāli. Kopš 2011. gada ar šādu audumu izstrādi ir nodarbojies Rīgas Tehniskās universitātes Dizaina tehnoloģiju institūts. Kopš 2016. gada ar šādiem pārklājumiem nodarbojas arī Rīgas Tehniskās universitātes Silikātu materiālu institūtā. Izmantojot savas gadu desmitu laikā iegūtās zināšanas sola-gēla tehnoloģijā un nanostrukturētu pārklājumu ieguvē, sekmīgi uzsākti pētījumi rūpnieciski izmantojamu tehnoloģiju izstrādei kokvilnas audumiem.Self-Cleaning Fabrics: What Are They and How Are They Used?Self-cleaning fabrics are textile materials, which under the influence of various external environmental factors have the ability to rid their surface from various contaminants. Such fabrics make it possible to reduce water and energy consumption associated with washing clothes, to reduce the risk of infections due to their biocidal properties, and to protect people from UV radiation. In addition, such fabrics would also be more difficult to wet. This would reduce the possibility of wet clothes in damp climates. Such effects by self-cleaning fabrics could be achieved through mechanisms of photocatalysis and superhydrophobicity. To develop textiles with above mentioned properties, the most suitable approach is the deposition of coatings formed by ZnO and TiO2 nanoparticles. In turn, the sol-gel method should be used to obtain coatings. This would make it possible to create homogeneous coatings at temperatures that organic materials can withstand. Institute of Design Technologies, Riga Technical University, has been working on the development of such fabrics since 2011. The research in the field of such coatings at the Institute of Silicate Materials, Riga Technical University, has been performed since 2016. Thanks to decades long research in sol-gel technology and nanostructured coatings, the development of commercially available technologies for cotton fabrics has been successfully launched at the Institute of Silicate Materials.Keywords: self-cleaning fabrics, sol-gel method, TiO2, ZnO

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