Development of the scratch resistance on acrylic sheet with basic colloidal silica (SiO2)-methyltrimethoxysilane (MTMS) nanocomposite films by sol-gel technique

2011 ◽  
Vol 90 (4) ◽  
pp. 888-896 ◽  
Author(s):  
Rojcharin Chantarachindawong ◽  
Wasutap Luangtip ◽  
Pongpan Chindaudom ◽  
Tanakorn Osotchan ◽  
Toemsak Srikhirin
Keyword(s):  
Colloidal Silica ◽  
Sol Gel ◽  
Scratch Resistance ◽  
Nanocomposite Films ◽  
Acrylic Sheet ◽  
Gel Technique

Factors towards Pencil Scratch Resistance of Protective Sol-Gel Coatings on Polycarbonate Substrate

2006 ◽  
Vol 312 ◽  
pp. 339-344 ◽  
Author(s):  
Edmund Chwa ◽  
Linda Wu ◽  
Z. Chen
Keyword(s):  
Fracture Toughness ◽  
Colloidal Silica ◽  
Elasticity Modulus ◽  
Sol Gel ◽  
Hardness Test ◽  
Scratch Resistance ◽  
Indentation Hardness ◽  
Pencil Hardness ◽  
Film Cracking ◽  
Polycarbonate Substrate

Sol-gel coatings with different amount of colloidal silica were prepared on polycarbonate substrate. The scratch resistance was measured by the pencil hardness test based on ASTM Standard D3363-00. The indentation hardness, elasticity modulus and fracture toughness of the coatings were also characterized and correlated to the observed pencil hardness. The scratch failure was found to be due to film cracking at the trailing end. Based on such an observation, the current analysis points out that the main factors towards scratch resistance are elasticity modulus, thickness and fracture toughness of the film.

Preparation of anchored ceramic coatings on metal substrates: a modified sol-gel technique using colloidal silica sol

1996 ◽  
Vol 31 (23) ◽  
pp. 6345-6349 ◽  
Author(s):  
M. F. M. Zwinkels ◽  
S. G. Järås ◽  
P. Govind Menon ◽  
Knut I. Åsen
Keyword(s):  
Colloidal Silica ◽  
Sol Gel ◽  
Ceramic Coatings ◽  
Silica Sol ◽  
Metal Substrates ◽  
Gel Technique

Optical properties of Mg0.05Zn0.95O/SiO2 nanocomposite films prepared by sol–gel technique

2005 ◽  
Vol 7 (2-3) ◽  
pp. 195-201 ◽  
Author(s):  
A. Dev ◽  
S. Chakrabarti ◽  
S. Kar ◽  
S. Chaudhuri
Keyword(s):  
Optical Properties ◽  
Sol Gel ◽  
Nanocomposite Films ◽  
Gel Technique

Electrochromic Properties of Ni/NiO/rGO Nanocomposite Films Prepared by a Facile Sol-Gel Technique

2017 ◽  
Vol 164 (13) ◽  
pp. H896-H902 ◽  
Author(s):  
Shanshan Jiang ◽  
Guangzhong Yuan ◽  
Chenzheng Hua ◽  
Shahid Khan ◽  
Zhizheng Wu ◽  
...  
Keyword(s):  
Sol Gel ◽  
Nanocomposite Films ◽  
Electrochromic Properties ◽  
Gel Technique

Preparation and Deposition of Hydroxyapatite on Biomaterials by Sol-Gel Technique-A Review

2013 ◽  
Vol 1 (2) ◽  
pp. 59-69 ◽  
Author(s):  
Sarbjit Kaur ◽  
Niraj Bala ◽  
Charu Khosla
Keyword(s):  
Sol Gel ◽  
Gel Technique

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‥

Sol - Gel Technique Applied for Biomaterials Achievement

2011 ◽  
Vol 4 (3) ◽  
pp. 224-237 ◽  
Author(s):  
Aurica P. Chiriac ◽  
Loredana E. Nita ◽  
Iordana Neamtu ◽  
Manuela T. Nistor
Keyword(s):  
Sol Gel ◽  
Gel Technique
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