Results 161 to 170 of about 3,172 (245)

Protection of HDG Steel Using ORMOSIL Coatings Enhanced with CeO2(5-ATDT)- Ceramic Nanocontainers

Applied Science and Engineering Progress, 2022
First, we studied the anticorrosion efficiency of the corrosiveness inhibitors CeO2, 5-amino-1,3,4-thiadiazole- 2-thiol (5-ATDT), Ce(NH4)2(NO3)6 in hot-dip galvanized zinc (HDG) steel. The best protection is shown by the compound Ce(NH4)2(NO3)6 among the
G. Kordas
semanticscholar   +1 more source

Rubbery Ormosils

MRS Proceedings, 1990
ABSTRACTA new technique which permits the successful preparation of ORMOSILS (Organically Modified Silicates) with rubbery elasticity has been developed. Common alkoxides were reacted with polydimethyl siloxane (PDMS) and the microstructures were carefully controlled. Large monoliths of the porous rubbery ORMOSILS have been prepared.
Young J. Chung, Su-Jen Ting, John D. Mackenzie   +2 more
openaire   +1 more source

Surface modified ormosil nanoparticles

Journal of Colloid and Interface Science, 2004
Organically modified silanes (ORMOSIL) such as vinyl triethoxysilane readily aggregate in the aqueous cores of reverse micelles where the triethoxysilane moieties are hydrolyzed to form a hydrated silica network and the vinyl groups protruded out from the surface of the nanoparticles toward the hydrophobic side of the micellar interface.
Rakesh Kumar, Sharma, Shraboni, Das, Amarnath, Maitra   +2 more
openaire   +2 more sources

Hardness Equation for Ormosils

Journal of Sol-Gel Science and Technology, 2000
Hardness of ormosils coating on various kinds of substrates is important, and by considering recent progresses in understanding the hardness of ionic crystals or covalent crystals, new hardness equations for calculating the hardness of glasses or ormosils from chemical compositions were derived.
Akio Makishima, J.D. Mackenzie
openaire   +1 more source

Mechanical properties of ormosils

Journal of Sol-Gel Science and Technology, 1996
Many organically modified silicates (ormosils) can be prepared by the sol-gel method with very different mechanical properties by varying the ratio of polydimethylsiloxane (PDMS) to tetraethoxysilane (TEOS) contents and processing conditions.
John D. Mackenzie, Qixin Huang, Takashi Iwamoto   +2 more
openaire   +1 more source

Ormosils of High Hardness

MRS Proceedings, 1994
ABSTRACTOrganically modified silicates (ormosils) of high hardness were prepared by the reactions of tetraethoxysilane (TEOS) and polydimethylsiloxane (PDMS) aided by ultrasonic irradiation. The mechanisms leading to the hard ormosil formation were investigated by liquid state 29Si
Takashi Iwamoto, John D. Mackenzie
openaire   +1 more source

Rubbery ormosils and their applications

Journal of Non-Crystalline Solids, 1992
When a polymer such as silanol terminated polydimethylsiloxane (PDMS) is mixed with an alkoxide such as tetraethoxysilane (TEOS) in a suitable solvent and catalyst, gels can be prepared which exhibit rubbery elasticity. The microstructures of such organically modified silicates (ormosils) can be controlled to give solids which are opaque or transparent
John D. Mackenzie, Y.J. Chung, Y. Hu
openaire   +1 more source

ORMOSIL films: Properties and microelectronic applications

Journal of Sol-Gel Science and Technology, 1997
The properties, as well as some issues of microelectronic applications of organically modified silicate (ORMOSIL) films, prepared by cohydrolysis in various proportions of tetraethoxysilane (TEOS) and phenyltriethoxysilane (PTEOS), or diphenyldiethylhexyloxydiethoxydisiloxane (DPS)1, are discussed.
K.A. Vorotilov, V.I. Petrovsky, V.A. Vasiljev, M.V. Sobolevsky   +3 more
openaire   +1 more source

Integrated Dual-Functional ORMOSIL Coatings with AgNPs@rGO Nanocomposite for Corrosion Resistance and Antifouling Applications

, 2020
Reduced graphene oxide/ silver nanoparticles (AgNPs@rGO) nanocomposite was prepared via a simple, straightforward and environmentally benign thermal reduction method.
Zhixiong Liu, Shu Tian, Qiang Li, Jiancheng Wang, Jibin Pu, Gang Wang, Wenjie Zhao, Feng Feng, Jun Qin, Lichun Ren   +9 more
semanticscholar   +1 more source

Incorporation of functionalized Ag-TiO2NPs to ormosil-based coatings as multifunctional biocide, superhydrophobic and photocatalytic surface treatments for porous ceramic materials

, 2021
Microbial fouling on the surface and water retention are common problems affecting porous ceramic materials (stone, concrete…) that can alter their properties, shorten their service life and even pose a health risk.
R. Zarzuela, M. Carbú, Almoraima Gil, J. Cantoral, M. Mosquera   +4 more
semanticscholar   +1 more source