Прочностные и гидравлические свойства открытоячеистого пеностеклоуглерода, полученного разными методами

The paper reports on comparative studies of mechanical strength and hydraulic permeability of open-cell vitreous carbon foams manufactured by different methods. Vitreous carbon foam were manufactured either by infiltration of the epoxy precursor resin into a layer of pore-forming removable granules or by replication of a structure of polyurethane foam template with the phenolic precursor resin followed by pyrolysis of the precursor resins in neutral gaseous environment. It was stated that the vitreous carbon foams manufactured by the replication method had higher hydraulic permeability compared to the vitreous carbon foams manufactured by infiltration, but had poorer mechanical strength at similar cell diameter and within similar relative densities range. Recommendations for the use of the studied foams in various areas have been proposed.Проведены сравнительные исследования механической прочности и гидравлической проницаемости открытоячеистого пеностеклоуглерода, полученного разными методами. Пеностеклоуглерод получали инфильтрацией полимер-прекурсора в слой порообразующих удаляемых гранул и дублированием структуры высокопористого полимерного каркаса полимер-прекурсором с последующим пиролизом прекурсора в нейтральной газовой среде. Установлено, что при близком диаметре ячеек и в близком диапазоне относительных плотностей пеностеклоуглерод, полученный дублированием полимерного каркаса, превосходит по гидравлической проницаемости пеностеклоуглерод, полученный инфильтрацией, но уступает ему по механической прочности. Предложены рекомендации по применению исследованных пеноматериалов в различных областях

USE OF THE ADSORPTION CATALYTIC METHOD FOR PURIFICATION OF EMISSION OF FORMING SITES OF FOUNDRY SHOPS OF VAPORS OF PHENOL AND FORMALDEHYDE

The purpose of this article is studying of process of neutralization of the phenol and formaldehyde vapor by adsorption and catalytic method

USE OF THE ADSORPTION CATALYTIC METHOD FOR PURIFICATION OF EMISSION FORMED AT USE OF NITROGEN-CONTAINING MOLDING SANDS

The purpose of this work was studying of process of neutralization of the nitrogen-containing vapor, escaping from forming sand blends by means of adsorption-catalytic method

USING OF ADSORPTIVE AND CATALYTIC METHOD FOR CLEANING OF EMISSION INTO ATMOSPHERE WHICH ARE FORMED AT USING THE NON-STICK COVERINGS CONTAINING ETHYL ALCOHOL

The article is dedicated to actual problem and is of scientific and practical interest. Purpose of this work is studying of process of the ethanol vapors neutralization by adsorption-catalytic method

Monolithic catalyst supports with foam structure

The present article considers the production of monolithic catalyst supports with a foam structure. A model of an open cell foam material structure is described. Technological schemes for the production of ceramic and metal foam materials, alongside with the main properties of the latter and control algorithms are presented

Rectification of cast through foam-ceramic filters is an effective method of metal quality improvement

The article presents comparative analysis of various classes of sponge permeable materials according to their structural, hydrodynamic, physicomechanical and filter characteristics. It is shown that foam-ceramic filters are most effective for rectification of metal alloys of nonmetal lie inclusions

Structured nanocomposite catalysts of biofuels transformation into syngas and hydrogen: Design and performance

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