Non-volatile Facility for Vacuum Drying of Thermolabile Materials

Сафин, Р. Р.; Khakimzyanov, I.F.; Mukhametzyanov, Shamil

doi:10.1016/j.proeng.2017.10.595

Cited by 8 publications

(6 citation statements)

References 10 publications

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“…The photographs show that the change in the shape and size of the drop in the first 10 seconds of experiments on control samples are practically not observed. While on samples of natural wood treated with ozone [17], there is a rapid spreading of a drop over the surface of the material. Moreover, the effect of ozonation on the drop spreading is significant both for natural wood and heat treated wood.…”

Section: Resultsmentioning

confidence: 99%

“…Chipping is necessary to remove the decomposition products of resinous substances melted onto the surface during heat treatment. [16,17] Experiments on ozonation of wood samples in the form of bars were carried out inOZ-0500AC ozone chamber of GOTECH Testing Machines Inc. and UGNLab Co., Ltd. Testing Equipment, designed to evaluate the ozone resistance of materials.…”

Section: Methodsmentioning

confidence: 99%

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Modification of the surface of thermally modified wood with ozone when creating glued structures

et al. 2021

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The greatest interest of researchers is focused on the processes of heat treatment of wood, taking place in an airless environment at temperatures of 180-250 °C, since heat treatment of wood allows increasing its moisture resistance, reduce hygroscopicity, and increase resistance to decay. However, a decrease in the hygroscopicity of wood adversely affects the process of obtaining glued materials due to a decrease in the wettability of thermowood surface and, as a consequence, a decrease in adhesion characteristics. This work is devoted to the study of the effect of ozone on the surface of thermally modified wood to increase the adhesive properties during gluing. It has been determined that the ozonation contributes to an increase in the wettability of the surface layer of thermal wood by more than 15% due to the reactivity of ozone to oxidize and degrade ligno-containing products of wood. It was revealed that the modification of wood, including preliminary volumetric heat treatment followed by surface treatment with ozone, causes an increase in the strength of the glue line when operated in high humidity conditions. In connection with the results obtained, an improved technology for the production of glued load-bearing structures for wooden housing construction is proposed.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Modification of the surface of thermally modified wood with ozone when creating glued structures

et al. 2021

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“…In order to study the properties of composites obtained on a 3D printer and to determine the effect of the filler on printing quality, studies were conducted to determine the roughness of the sample surface and the size of the filler particles depending on the temperature of thermal modification [12,15]. The average values of the roughness parameter Ra of products manufactured from polylactide on 3D printing installations are presented in Table 1.…”

Section: Methodsmentioning

confidence: 99%

Improvement of Composite Filaments for Extrusive 3D Printing

Mukhametzyanov

Сафин

Galyavetdinov

2020

MSF

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Today, the technology of extrusion 3D printing of plastic products is developing at the highest rate, due to its availability. Therefore, the creation of composite materials, based on thermoplastics, which contain various additives, aimed at improving the physico-mechanical and aesthetic characteristics is becoming more important. In this regard, the studies on the effectiveness of using a thermally modified wood filler in the filaments, used in extrusion 3D printing technologies, were conducted in this work. It was found that the presence of a thermally modified wood filler reduces shrinkage of the composite and allows obtaining products with the smallest surface roughness. However, with a high content of filler in the composite, a decrease in its strength properties is observed.

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“…Ключовi слова: роторно-дисковий плiвковий випарний апарат, тепловiддача, k-ε модель турбулентностi, вимушена конвекцiя, ANSYS, СFX, напруження зсуву UDC 536.2, 536.7 DOI: 10.15587/1729-4061.2019.156649 energy. To improve energy efficiency of the process, a scheme was built that includes heat pumps and several drying chambers [3]. A given scheme is based on utilizing wood for energy generation: this circumstance, under conditions for meeting the requirements to proper manufacturing practices by pharmaceutical plants, prevents its industrial application.…”

Section: наведено узагальнення отриманих результатIв комп'ютерного моmentioning

confidence: 99%

Revealing special features of hydrodynamics in a rotor-disk film vaporizing plant

Kostyk

Shybetskyy

Fesenko

et al. 2019

EEJET

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Non-volatile Facility for Vacuum Drying of Thermolabile Materials

Cited by 8 publications

References 10 publications

Modification of the surface of thermally modified wood with ozone when creating glued structures

Modification of the surface of thermally modified wood with ozone when creating glued structures

Improvement of Composite Filaments for Extrusive 3D Printing

Revealing special features of hydrodynamics in a rotor-disk film vaporizing plant

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