DEFINITION OF THE THERMAL AND FIRE-PROTECTIVE PROPERTIES OF ETHYLENE-VINYL ACETATE COPOLYMER NANOCOMPOSITES
| Autor: | L. N. Vakhitova, Volodymyr Bessarabov, Anatolii F. Popov, Glib Zagoriy, Nadezhda Тaran, Andrey Redko, Victor Anishchenko |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Materials science
020209 energy 0211 other engineering and technologies intumescent coatings Energy Engineering and Power Technology 02 engineering and technology Industrial and Manufacturing Engineering chemistry.chemical_compound Management of Technology and Innovation 021105 building & construction lcsh:Technology (General) 0202 electrical engineering electronic engineering information engineering lcsh:Industry Thermal stability Electrical and Electronic Engineering Ammonium polyphosphate hydrocarbon fire organomodified montmorillonite Nanocomposite nanocomposite Applied Mathematics Mechanical Engineering Thermal decomposition Ethylene-vinyl acetate Computer Science Applications Montmorillonite chemistry Chemical engineering Control and Systems Engineering thermally expanded graphite lcsh:T1-995 lcsh:HD2321-4730.9 Intumescent Fire retardant |
| Zdroj: | Eastern-European Journal of Enterprise Technologies, Vol 1, Iss 6 (97), Pp 13-20 (2019) |
| Popis: | To create a fire retardant coating that can be applied in the hydrocarbon fire, the nanocomposites of the ethylene-vinyl acetate (EVA) copolymer with montmorillonite (MMT), thermally expanded graphite (EG) are synthesized and their structure, physicochemical and thermal properties are studied. Using IR spectroscopy and X-ray phase analysis, it is found that the EVA nanocomposites with montmorillonite and nanographite obtained in solution and melt have the same structure. Thermal-oxidative degradation of the EVA copolymer and nanocomposites on its basis in the temperature range of 100–700 °C is investigated. It is proved that nanoclay and nanographite as a part of nanocomposites increase thermal characteristics of the original polymers. The thermal stability of the studied compounds increases in the series: polymer The effect of organomodified montmorillonite and graphite in the EVA nanocomposites on the thermal destruction of the intumescent system of ammonium polyphosphate/melamine/pentaerythritol is studied. The synergistic effect of the mixture of clay and graphite nanoparticles in a hybrid nanocomposite is revealed. Synergism consists in increased fire resistance of metal structures by almost 20 % compared with the coating containing the polymer-nanoclay or polymer-nanographite nanocomposite. Based on the results obtained, the intumescent base of fire retardant paint for steel structures, which is recommended for use to increase the fire-resistance rating of metal in the hydrocarbon fire is developed |
| Databáze: | OpenAIRE |
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