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Development and Analysis of the Physicochemical and Mechanical Properties of Diorite-Reinforced Epoxy Composites

The aim of this paper is to study the effect of a polyfunctional modifier oligo (resorcinol phenyl phosphate) with terminal phenyl groups and a dispersed mineral filler, diorite, on the physicochemical and deformation-strength properties of epoxy-based composites. The efficiency of using diorite as...

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Autores principales: Bekeshev, Amirbek, Mostovoy, Anton, Kadykova, Yulia, Akhmetova, Marzhan, Tastanova, Lyazzat, Lopukhova, Marina
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8348695/
https://www.ncbi.nlm.nih.gov/pubmed/34372024
http://dx.doi.org/10.3390/polym13152421
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author Bekeshev, Amirbek
Mostovoy, Anton
Kadykova, Yulia
Akhmetova, Marzhan
Tastanova, Lyazzat
Lopukhova, Marina
author_facet Bekeshev, Amirbek
Mostovoy, Anton
Kadykova, Yulia
Akhmetova, Marzhan
Tastanova, Lyazzat
Lopukhova, Marina
author_sort Bekeshev, Amirbek
collection PubMed
description The aim of this paper is to study the effect of a polyfunctional modifier oligo (resorcinol phenyl phosphate) with terminal phenyl groups and a dispersed mineral filler, diorite, on the physicochemical and deformation-strength properties of epoxy-based composites. The efficiency of using diorite as an active filler of an epoxy polymer, ensuring an increase in strength and a change in the physicochemical properties of epoxy composites, has been proven. We selected the optimal content of diorite both as a structuring additive and as a filler in the composition of the epoxy composite (0.1 and 50 parts by mass), at which diorite reinforces the epoxy composite. It has been found that the addition of diorite into the epoxy composite results in an increase in the Vicat heat resistance from 132 to 140–188 °C and increases the thermal stability of the epoxy composite, which is observed in a shift of the initial destruction temperature to higher temperatures. Furthermore, during the thermal destruction of the composite, the yield of carbonized structures increases (from 54 to 70–77% of the mass), preventing the release of volatile pyrolysis products into the gas phase, which leads to a decrease in the flammability of the epoxy composite. The efficiency of the functionalization of the diorite surface with APTES has been proven, which ensures chemical interaction at the polymer matrix/filler interface and also prevents the aggregation of diorite particles, which, in general, provides an increase in the strength characteristics of epoxy-based composite materials by 10–48%.
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spelling pubmed-83486952021-08-08 Development and Analysis of the Physicochemical and Mechanical Properties of Diorite-Reinforced Epoxy Composites Bekeshev, Amirbek Mostovoy, Anton Kadykova, Yulia Akhmetova, Marzhan Tastanova, Lyazzat Lopukhova, Marina Polymers (Basel) Article The aim of this paper is to study the effect of a polyfunctional modifier oligo (resorcinol phenyl phosphate) with terminal phenyl groups and a dispersed mineral filler, diorite, on the physicochemical and deformation-strength properties of epoxy-based composites. The efficiency of using diorite as an active filler of an epoxy polymer, ensuring an increase in strength and a change in the physicochemical properties of epoxy composites, has been proven. We selected the optimal content of diorite both as a structuring additive and as a filler in the composition of the epoxy composite (0.1 and 50 parts by mass), at which diorite reinforces the epoxy composite. It has been found that the addition of diorite into the epoxy composite results in an increase in the Vicat heat resistance from 132 to 140–188 °C and increases the thermal stability of the epoxy composite, which is observed in a shift of the initial destruction temperature to higher temperatures. Furthermore, during the thermal destruction of the composite, the yield of carbonized structures increases (from 54 to 70–77% of the mass), preventing the release of volatile pyrolysis products into the gas phase, which leads to a decrease in the flammability of the epoxy composite. The efficiency of the functionalization of the diorite surface with APTES has been proven, which ensures chemical interaction at the polymer matrix/filler interface and also prevents the aggregation of diorite particles, which, in general, provides an increase in the strength characteristics of epoxy-based composite materials by 10–48%. MDPI 2021-07-23 /pmc/articles/PMC8348695/ /pubmed/34372024 http://dx.doi.org/10.3390/polym13152421 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Bekeshev, Amirbek
Mostovoy, Anton
Kadykova, Yulia
Akhmetova, Marzhan
Tastanova, Lyazzat
Lopukhova, Marina
Development and Analysis of the Physicochemical and Mechanical Properties of Diorite-Reinforced Epoxy Composites
title Development and Analysis of the Physicochemical and Mechanical Properties of Diorite-Reinforced Epoxy Composites
title_full Development and Analysis of the Physicochemical and Mechanical Properties of Diorite-Reinforced Epoxy Composites
title_fullStr Development and Analysis of the Physicochemical and Mechanical Properties of Diorite-Reinforced Epoxy Composites
title_full_unstemmed Development and Analysis of the Physicochemical and Mechanical Properties of Diorite-Reinforced Epoxy Composites
title_short Development and Analysis of the Physicochemical and Mechanical Properties of Diorite-Reinforced Epoxy Composites
title_sort development and analysis of the physicochemical and mechanical properties of diorite-reinforced epoxy composites
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8348695/
https://www.ncbi.nlm.nih.gov/pubmed/34372024
http://dx.doi.org/10.3390/polym13152421
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