Stabilized dispersions of titania nanoparticles via a sol–gel process and applications in UV-curable hybrid systems

2006 ◽  
Vol 55 (4) ◽  
pp. 466-472 ◽  
Author(s):  
Xiahong Zhang ◽  
Jianwen Yang ◽  
Zhaohua Zeng ◽  
Liang Huang ◽  
Yonglie Chen ◽  
...  
Keyword(s):  
Hybrid Systems ◽  
Sol Gel ◽  
Titania Nanoparticles ◽  
Uv Curable ◽  
Sol Gel Process

UV Curable Organic-Inorganic Hybrid Materials

2000 ◽  
Vol 628 ◽  
Author(s):  
Guang-Way Jang ◽  
Ren-Jye Wu ◽  
Yuung-Ching Sheen ◽  
Ya-Hui Lin ◽  
Chi-Jung Chang
Keyword(s):  
Hybrid Materials ◽  
Colloidal Silica ◽  
Sol Gel ◽  
Solution Ph ◽  
Uv Curable ◽  
Inorganic Hybrid ◽  
Degradation Temperature ◽  
Sol Gel Process ◽  
The Stability ◽  
Thermal Degradation Temperature

This work successfully prepared an UV curable organic-inorganic hybrid material consisting of organic modified colloidal silica. Applications of UV curable organic-inorganic hybrid materials include abrasion resistant coatings, photo-patternable thin films and waveguides. Colloidal silica containing reactive functional groups were also prepared by reacting organic silane and tetraethyl orthosilicate (TEOS) using sol-gel process. In addition, the efficiency of grafting organic moiety onto silica nanoparticles was investigated by applying TGA and FTIR techniques. Experimental results indicated a strong interdependence between surface modification efficiency and solution pH. Acrylate-SiO2 hybrid formation could result in a shifting of thermal degradation temperature of organic component from about 200°C to near 400°C. In addition, the stability of organic modified colloidal silica in UV curable formula and the physical properties of resulting coatings were discussed. Furthermore, the morphology of organic modified colloidal silica was investigated by performing TEM and SEM studies‥

Structure–property behavior of UV-curable polyepoxy–acrylate hybrid materials prepared via sol–gel process

2003 ◽  
Vol 87 (10) ◽  
pp. 1654-1659 ◽  
Author(s):  
Ling Zhang ◽  
Zhaohua Zeng ◽  
Jianwen Yang ◽  
Yonglie Chen
Keyword(s):  
Hybrid Materials ◽  
Sol Gel ◽  
Structure Property ◽  
Uv Curable ◽  
Sol Gel Process

Preparation and characterization of UV curable waterborne poly(urethane-acrylate)/antimony doped tin oxide thermal insulation coatings by sol-gel process

2017 ◽  
Vol 113 ◽  
pp. 39-46 ◽  
Author(s):  
Kaihua Wu ◽  
Shanglin Xiang ◽  
Weiqiang Zhi ◽  
Renji Bian ◽  
Chenchen Wang ◽  
...  
Keyword(s):  
Thermal Insulation ◽  
Tin Oxide ◽  
Sol Gel ◽  
Urethane Acrylate ◽  
Uv Curable ◽  
Sol Gel Process

Structural, Magnetic, and Catalytic Properties of Mn-Doped Titania Nanoparticles Synthesized by a Sol–Gel Process

2018 ◽  
Vol 29 (6) ◽  
pp. 1255-1267 ◽  
Author(s):  
M. Chandra Sekhar ◽  
B. Purusottam Reddy ◽  
S. V. Prabhakar Vattikuti ◽  
Gnanendra Shanmugam ◽  
Chang-Hoi Ahn ◽  
...  
Keyword(s):  
Catalytic Properties ◽  
Sol Gel ◽  
Titania Nanoparticles ◽  
Sol Gel Process ◽  
Doped Titania ◽  
Mn Doped

Characterization and properties of UV-curable polyurethane-acrylate/silica hybrid materials prepared by the sol-gel process

2004 ◽  
Vol 53 (10) ◽  
pp. 1431-1435 ◽  
Author(s):  
Ling Zhang ◽  
Zhaohua Zeng ◽  
Jianwen Yang ◽  
Yonglie Chen
Keyword(s):  
Hybrid Materials ◽  
Sol Gel ◽  
Uv Curable ◽  
Polyurethane Acrylate ◽  
Sol Gel Process ◽  
Silica Hybrid

Anti-reflection and anti-static (AR/AS) coatings made by TiO2 sol-gel process with poly(3,4-ethylenedioxy thiophene)

e-Polymers ◽  
2008 ◽  
Vol 8 (1) ◽  
Author(s):  
Won Jung Kim ◽  
Tae Young Kim ◽  
Chin Su Park ◽  
Jong Eun Kim ◽  
Tae Hee Lee ◽  
...  
Keyword(s):  
Refractive Index ◽  
Sol Gel ◽  
Nir Spectroscopy ◽  
High Refractive Index ◽  
Conducting Layer ◽  
Uv Curable ◽  
Sol Gel Process ◽  
Refractive Index Layer ◽  
Poly Ethylene ◽  
Low Refractive Index

AbstractIn this study, we designed a two-layer hybrid Anti-Reflection/Anti-Static (AR/AS) thin film. Two kinds of UV-curable fluorinated compounds were synthesized as low refractive index materials, and a TiO2 sol combined with a conducting polymer, poly(3,4-ethylenedioxythiophene) was made by the sol-gel process for use as a high refractive index material as well as a conducting layer. In order to determine the most optimized AR/AS system, the spectral properties were simulated with the refractive index of each layer. According to the simulated results, a high refractive index layer was deposited on the hard coated poly(ethylene terephthalate) (PET) substrate by the spin coating technique, and a low refractive index layer was spin coated on the low refractive index layer. The reflectance and transmittance were measured by UV-VIS-NIR spectroscopy. It was found that the measured reflectance and the maximum transmittance of the AR/AS film were 0.71 %R at a wavelength of 550 nm and 93 %T in the wavelength range between 400 and 700 nm, respectively. The surface resistance of the AR/AS film was 108.6 ohms.

scholarly journals UV-curable hybrid organic-inorganic membranes for the use as PEM in fuel cell

2019 ◽  
Vol 7 (1) ◽  
pp. 81-89
Author(s):  
Oksana I. Demchyna ◽  
Khrystyna V. Rymsha ◽  
Mariia M. Zhyhailo ◽  
Iryna Yu. Yevchuk ◽  
Viktoria V. Kochubei
Keyword(s):  
Fuel Cell ◽  
Proton Conductivity ◽  
Sol Gel ◽  
Inorganic Membranes ◽  
Uv Curable ◽  
Fuel Cell Application ◽  
High Proton ◽  
System Characterization ◽  
Sol Gel Process

The series of membranes were prepared by UV-initiated polymerization of acrylic monomers (acrylonitrile AN, acrylic acid AA and potassium 3-sulfopropylacrylate SPAK) at the presence of photoinitiator (2,2-dimethoxy-2-phenylacetophenone (DMPA)) and cross-linker ethyleneglycole dimethacrylate (EGDMA), and simultaneous sol-gel process in TEOS-based sol-gel system. Characterization of the obtained nanocomposites includes measurements of proton conductivity, thermal behaviuor, water/methanol uptake, free surface energy. The synthesized membranes have high proton conductivity (10-2 Sm/cm) and other properties allowing to consider them as promising candidates for fuel cell application.

Synthesis of silsesquioxane urethane hybrid materials by a modified sol–gel process

2015 ◽  
Vol 39 (12) ◽  
pp. 9789-9799 ◽  
Author(s):  
Sizhe Wang ◽  
Guangli Li ◽  
John J. Chiao ◽  
Z. Jeffrey Wang ◽  
Yanwen Yvonne Duan
Keyword(s):  
Functional Groups ◽  
Hybrid Materials ◽  
Sol Gel ◽  
Uv Curable ◽  
Sol Gel Process ◽  
Molecular Hybrids ◽  
The Stability

UV-curable molecular hybrids were prepared by a sol–gel process that could be adopted industrially. The stability was improved and additional functional groups introduced.

Novel Uv-Curable Low-Shrinking Silanes as Precursors for the Sol-Gel-Process

1998 ◽  
Vol 519 ◽  
Author(s):  
S. Stein ◽  
N. Moszner ◽  
Th. Voelkel ◽  
V. Rheinberger
Keyword(s):  
Radical Polymerization ◽  
Uv Light ◽  
Sol Gel ◽  
Uv Curable ◽  
New Class ◽  
Sol Gel Process ◽  
Hydrolysis And Condensation ◽  
First Results ◽  
Alkoxy Groups

AbstractThe increasing interest in inorganic-organic nanocomposites which offer the possibility to build up both an inorganic and organic network by hydrolysis and condensation and by polymerization reactions, respectively, leads to the development of a new class of double bond functionalized silanes. These 2-vinylcyclopropyl silanes were synthesized e.g. by reaction of 1-methoxycarbonyl-2-vinylcyclopropane-l-carboxylic acid with 3-isocyanatopropyltriethoxysilane. Hydrolysis and condensation of the alkoxy groups as well as cocondensation with tetraalkoxysilanes lead to solvent-free liquid resins that can be cured by UV-light-induced radical polymerization of the vinylcyclopropane group. The synthesis and characterization of different 2-vinylcyclopropyl silanes, hydrolysation and condensation behavior and first results of the radical polymerization will be discussed.

Sign in / Sign up

Export Citation Format

Share Document