scholarly journals Preparation of the heat-resistant superhydrophobic coating with a nanostructured finish layer based on a suspension of silicon dioxide in a fluorinated film-former and its properties

2021 ◽  
Vol 57 (3) ◽  
pp. 346-355
Author(s):  
V. D. Koshevar ◽  
V. G. Shkadretsova ◽  
A. S. Pismenskaya
Keyword(s):  
Silicon Dioxide ◽  
Carbon Nanoparticles ◽  
Chemical Nature ◽  
Superhydrophobic Coating ◽  
Modes Of Operation ◽  
Anticorrosive Coating ◽  
Heat Resistant ◽  
Heat Resistant Coating ◽  
Bead Mill ◽  
Metal Products

The processes of obtaining compositions based on organosilicon resin for a heat-resistant coating of accelerated drying, as well as its hydrophobization by creating an isotropic nano-microstructure on the surface, are studied. It is shown that the chemical nature, the content of the ingredients and the thickness of the coatings have the greatest influence on the physicochemical properties of heat-resistant coatings. The methods of obtaining a composition for heat-resistant coatings using a dissolver and a bead mill in various modes of operation were studied, which allowed us to develop a technological process for manufacturing heat-resistant paint and varnish material. The composition and technology of obtaining a final hydrophobic layer based on a suspension of aerosil HDK 12H and carbon nanoparticles in a fluorine-containing varnish LF 32LN was developed in order to obtain a complex heat-resistant, superhydrophobic and anticorrosive coating for the protection of metal products and its properties were investigated.

Modification of films of heat-resistant polyimides by adding hydrosilicate and carbon nanoparticles of various geometries

2007 ◽  
Vol 77 (7) ◽  
pp. 1158-1163 ◽  
Author(s):  
I. V. Gofman ◽  
V. M. Svetlichnyi ◽  
V. E. Yudin ◽  
A. V. Dobrodumov ◽  
A. L. Didenko ◽  
...  
Keyword(s):  
Carbon Nanoparticles ◽  
Heat Resistant

Ensuring flat heat transfer in heat units of food production

2021 ◽  
pp. 20-23
Author(s):  
Николай Алексеевич Ермошин ◽  
Сергей Александрович Романчиков ◽  
Артем Николаевич Брагин
Keyword(s):  
Heat Transfer ◽  
Wear Resistance ◽  
Food Production ◽  
Heat Losses ◽  
Metal Powders ◽  
Heat Resistant ◽  
Gas Dynamic ◽  
Heat Resistant Coating ◽  
Point Source Of Heat ◽  
Fine Ceramics

Предлагается способ модификации тепловых блоков пищевых производств с точечным источником генерации теплоты, позволяющий обеспечить плоскостной принцип его передачи на стенки варочного сосуда. Способ обеспечивает повышенную износостойкость и жаропрочность стенок варочного сосуда и теплового блока за счет применения газодинамического напыления запатентованного состава специального покрытия, включающего коллоидный графит, оксид меди, каолин, металлические порошки и мелкодисперсную керамику. Раскрыт порядок нанесения покрытия на стенки теплового блока и варочного сосуда, приводятся физико-химические свойства исходных компонентов керамического жаростойкого покрытия, наносимого на внутренние стенки теплового блока. Предложены образцы теплового оборудования для подготовки исходных компонентов изготовления противоизносного жаростойкого защитного покрытия. Обоснованы условия реализации технических и технологических операций по нанесению покрытий. Исследованы зависимости и получены закономерности изменения теплопередачи и теплопотерь в тепловых блоках пищевых производств в зависимости от состава покрытия и его толщины. A method is proposed for modifying the thermal blocks of food production with a point source of heat generation, which allows to ensure the plane principle of its transfer to the walls of the cooking vessel. The method provides increased wear resistance and heat resistance of the walls of the cooking vessel and the heat block due to the use of gas-dynamic spraying of a patented composition of a special coating including colloidal graphite, copper oxide, kaolin, metal powders and fine ceramics. The procedure for coating the walls of the heating block and the cooking vessel is disclosed, and the physicochemical properties of the initial components of the ceramic heat-resistant coating applied to the inner walls of the heating block are presented. Samples of thermal equipment for the preparation of the initial components for the manufacture of antiwear heat-resistant protective coating are proposed. The conditions for the implementation of technical and technological operations for coating are substantiated. The dependences are investigated and the regularities of changes in heat transfer and heat losses in the thermal blocks of food production are obtained depending on the composition of the coating and its thickness.

Radioparent Heat-Resistant Coating Based on Inorganic Binder

2017 ◽  
Vol 58 (2) ◽  
pp. 239-241
Author(s):  
P. A. Stepanov ◽  
V. V. Antonov ◽  
I. G. Atroshchenko ◽  
O. V. Nikulina ◽  
O. A. Stroeva ◽  
...  
Keyword(s):  
Inorganic Binder ◽  
Heat Resistant ◽  
Resistant Coating ◽  
Heat Resistant Coating

Chemical nature of active sites for defect-mediated nucleation on silicon dioxide

AIChE Journal ◽  
2015 ◽  
Vol 62 (2) ◽  
pp. 367-372 ◽  
Author(s):  
Joseph M. McCrate ◽  
John G. Ekerdt
Keyword(s):  
Silicon Dioxide ◽  
Active Sites ◽  
Chemical Nature
Sign in / Sign up

Export Citation Format

Share Document