Thermoplastic Intumescent Coatings Modified with Pentaerythritol-Occluded Carbon Nanotubes

A thermoplastic intumescent coating system (IC) based on poly(vinyl acetate) was modified by two forms of multiwalled carbon nanotubes (CNTs), i.e., by a nanofiller powder and its solid dispersions in pentaerythritol (PER-CNTs). It was revealed that only the PER-CNTs modifier allows us to obtain sol...

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Autores principales:	Michał Tomczak, Jakub Łopiński, Agnieszka Kowalczyk, Krzysztof Kowalczyk
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	carbon nanotubes intumescent layer nanofiller pentaerythritol solid dispersion Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/57664bca43ba4e3d9c29e7a8afb2aeb0
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spelling	oai:doaj.org-article:57664bca43ba4e3d9c29e7a8afb2aeb02021-11-11T17:51:30ZThermoplastic Intumescent Coatings Modified with Pentaerythritol-Occluded Carbon Nanotubes10.3390/ma142162841996-1944https://doaj.org/article/57664bca43ba4e3d9c29e7a8afb2aeb02021-10-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/21/6284https://doaj.org/toc/1996-1944A thermoplastic intumescent coating system (IC) based on poly(vinyl acetate) was modified by two forms of multiwalled carbon nanotubes (CNTs), i.e., by a nanofiller powder and its solid dispersions in pentaerythritol (PER-CNTs). It was revealed that only the PER-CNTs modifier allows us to obtain solvent-borne ICs with a relatively high CNTs concentration (1–3 wt. parts of CNTs/100 wt. parts of paint solids) and acceptable application viscosity. Thermal insulation time (TIT) and intumescent factor (<i>IF</i>) of the ICs on a steel substrate (a fire test according to a cellulosic fire curve), as well as morphology, chemical structure (by the FT-IR technique) and mechanical strength of the charred systems, were investigated. It was found that the CNTs powder decreases TIT and <i>IF</i> values while PER-occluded CNTs improve these parameters (e.g., +4.6 min and +102% vs. an unmodified sample, respectively). Compressive strength of the charred ICs was improved by the PER-CNTs modifier as well.Michał TomczakJakub ŁopińskiAgnieszka KowalczykKrzysztof KowalczykMDPI AGarticlecarbon nanotubesintumescent layernanofillerpentaerythritolsolid dispersionTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6284, p 6284 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	carbon nanotubes intumescent layer nanofiller pentaerythritol solid dispersion Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	carbon nanotubes intumescent layer nanofiller pentaerythritol solid dispersion Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Michał Tomczak Jakub Łopiński Agnieszka Kowalczyk Krzysztof Kowalczyk Thermoplastic Intumescent Coatings Modified with Pentaerythritol-Occluded Carbon Nanotubes
description	A thermoplastic intumescent coating system (IC) based on poly(vinyl acetate) was modified by two forms of multiwalled carbon nanotubes (CNTs), i.e., by a nanofiller powder and its solid dispersions in pentaerythritol (PER-CNTs). It was revealed that only the PER-CNTs modifier allows us to obtain solvent-borne ICs with a relatively high CNTs concentration (1–3 wt. parts of CNTs/100 wt. parts of paint solids) and acceptable application viscosity. Thermal insulation time (TIT) and intumescent factor (<i>IF</i>) of the ICs on a steel substrate (a fire test according to a cellulosic fire curve), as well as morphology, chemical structure (by the FT-IR technique) and mechanical strength of the charred systems, were investigated. It was found that the CNTs powder decreases TIT and <i>IF</i> values while PER-occluded CNTs improve these parameters (e.g., +4.6 min and +102% vs. an unmodified sample, respectively). Compressive strength of the charred ICs was improved by the PER-CNTs modifier as well.
format	article
author	Michał Tomczak Jakub Łopiński Agnieszka Kowalczyk Krzysztof Kowalczyk
author_facet	Michał Tomczak Jakub Łopiński Agnieszka Kowalczyk Krzysztof Kowalczyk
author_sort	Michał Tomczak
title	Thermoplastic Intumescent Coatings Modified with Pentaerythritol-Occluded Carbon Nanotubes
title_short	Thermoplastic Intumescent Coatings Modified with Pentaerythritol-Occluded Carbon Nanotubes
title_full	Thermoplastic Intumescent Coatings Modified with Pentaerythritol-Occluded Carbon Nanotubes
title_fullStr	Thermoplastic Intumescent Coatings Modified with Pentaerythritol-Occluded Carbon Nanotubes
title_full_unstemmed	Thermoplastic Intumescent Coatings Modified with Pentaerythritol-Occluded Carbon Nanotubes
title_sort	thermoplastic intumescent coatings modified with pentaerythritol-occluded carbon nanotubes
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/57664bca43ba4e3d9c29e7a8afb2aeb0
work_keys_str_mv	AT michałtomczak thermoplasticintumescentcoatingsmodifiedwithpentaerythritoloccludedcarbonnanotubes AT jakubłopinski thermoplasticintumescentcoatingsmodifiedwithpentaerythritoloccludedcarbonnanotubes AT agnieszkakowalczyk thermoplasticintumescentcoatingsmodifiedwithpentaerythritoloccludedcarbonnanotubes AT krzysztofkowalczyk thermoplasticintumescentcoatingsmodifiedwithpentaerythritoloccludedcarbonnanotubes
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Thermoplastic Intumescent Coatings Modified with Pentaerythritol-Occluded Carbon Nanotubes

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