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

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‥

Homogeneous phase synthesis of chitosan silica hybrid materials in ionic liquid medium and adsorption of Fe(III) from aqueous solutions

2019 ◽  
Vol 38 (9) ◽  
pp. 586-597 ◽  
Author(s):  
Ananda S. Amarasekara ◽  
Deping Wang
Keyword(s):  
Ionic Liquid ◽  
Hybrid Materials ◽  
Sol Gel ◽  
Phase Reaction ◽  
Phase Synthesis ◽  
Homogeneous Phase ◽  
Sol Gel Process ◽  
Hydrolysis Of ◽  
Silica Hybrid ◽  
Ionic Liquid Medium

Two chitosan silica hybrid materials were prepared by a two-step process in 78–84% yields using the homogeneous phase reaction of 3-(triethoxysilyl)propyl isocyanate with chitosan dissolved in 1-n-butyl-3-methylimidazolium chloride ionic liquid (∼10% w/w), which was followed by NH4OH catalyzed hydrolysis of triethoxysilyl groups and then sol-gel process. These new hybrid materials were shown to adsorb up to about 95% of Fe3+ from 5 × 10−4 M aqueous solution at room temperature in 24 h.

Epoxy-silica hybrid materials synthesized via sol-gel process

2005 ◽  
Vol 11 (8-9) ◽  
pp. 631-641 ◽  
Author(s):  
Wei-Hsiang Weng ◽  
Chih-Chung Chang ◽  
Hui Chen
Keyword(s):  
Hybrid Materials ◽  
Sol Gel ◽  
Sol Gel Process ◽  
Silica Hybrid

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

Feature article. Preparation of new polyimide–silica hybrid materials via the sol–gel process

1992 ◽  
Vol 2 (7) ◽  
pp. 679-689 ◽  
Author(s):  
Atsushi Morikawa ◽  
Yoshitake Iyoku ◽  
Masa-Aki Kakimoto ◽  
Yoshio Imai
Keyword(s):  
Hybrid Materials ◽  
Sol Gel ◽  
Feature Article ◽  
Sol Gel Process ◽  
Silica Hybrid
Sign in / Sign up

Export Citation Format

Share Document