Modification of high-density polyethylene using functionalized titanium dioxide nanoparticles
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Matéria (Rio de Janeiro. Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-70762022000100331 |
Resumo: | ABSTRACT High-density polyethylene (HDPE) has many applications, including in the electrical sector, due to its excellent electrical, mechanical, and thermal properties. In insulators employed in electricity networks, the material is exposed to various adverse conditions (solar radiation, humidity, temperature cycles, and pollution), which can accelerate degradation of the polymer, modifying its properties and affecting its performance in the field. The surface resistivity of HDPE hinders the transmission of electrical current on the surface, consequently avoiding tracking. However, factors such as contamination of the surface by industrial pollutants, salt, and other agents, together with high humidity, act to decrease the surface resistivity, facilitating the flow of current between different potentials and initiating the electrical tracking process, which can lead to loss of the insulation property. In order to avoid electrical tracking, it is important to prevent the adhesion of dirt on the surface of the insulator, which can be achieved by the provision of a hydrophobic surface. The aim of this work was to modify the surface of HDPE using a coating of TiO2 nanoparticles. The nanoparticles were functionalized to optimize adhesion to the polymer surface during immersion processes, obtaining hydrophobic surfaces with self-cleaning characteristics that could improve performance when applied to insulators. Four different functionalization agents were studied, with different carbon chain lengths: trimethoxypropylsilane (TMPSi), trimethoxyoctylsilane (TMOSi), trimethoxyhexadecylsilane (TM16Si), and trimethoxyoctadecylsilane (TM18Si). The modification of the nanoparticle surface was confirmed by analysis using Fourier transform infrared (FTIR) spectroscopy. The HDPE sample surfaces showed good adhesion of the functionalized nanoparticles, with enhanced hydrophobicity. |
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Modification of high-density polyethylene using functionalized titanium dioxide nanoparticlesHigh-density polyethylenehydrophobicitysurface modificationfunctionalized TiO2silanesABSTRACT High-density polyethylene (HDPE) has many applications, including in the electrical sector, due to its excellent electrical, mechanical, and thermal properties. In insulators employed in electricity networks, the material is exposed to various adverse conditions (solar radiation, humidity, temperature cycles, and pollution), which can accelerate degradation of the polymer, modifying its properties and affecting its performance in the field. The surface resistivity of HDPE hinders the transmission of electrical current on the surface, consequently avoiding tracking. However, factors such as contamination of the surface by industrial pollutants, salt, and other agents, together with high humidity, act to decrease the surface resistivity, facilitating the flow of current between different potentials and initiating the electrical tracking process, which can lead to loss of the insulation property. In order to avoid electrical tracking, it is important to prevent the adhesion of dirt on the surface of the insulator, which can be achieved by the provision of a hydrophobic surface. The aim of this work was to modify the surface of HDPE using a coating of TiO2 nanoparticles. The nanoparticles were functionalized to optimize adhesion to the polymer surface during immersion processes, obtaining hydrophobic surfaces with self-cleaning characteristics that could improve performance when applied to insulators. Four different functionalization agents were studied, with different carbon chain lengths: trimethoxypropylsilane (TMPSi), trimethoxyoctylsilane (TMOSi), trimethoxyhexadecylsilane (TM16Si), and trimethoxyoctadecylsilane (TM18Si). The modification of the nanoparticle surface was confirmed by analysis using Fourier transform infrared (FTIR) spectroscopy. The HDPE sample surfaces showed good adhesion of the functionalized nanoparticles, with enhanced hydrophobicity.Laboratório de Hidrogênio, Coppe - Universidade Federal do Rio de Janeiroem cooperação com a Associação Brasileira do Hidrogênio, ABH22022-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-70762022000100331Matéria (Rio de Janeiro) v.27 n.1 2022reponame:Matéria (Rio de Janeiro. Online)instname:Matéria (Rio de Janeiro. Online)instacron:RLAM10.1590/s1517-707620220001.1357info:eu-repo/semantics/openAccessSalum,Aline SouzaVeiga,Paulo Apolinário da SilvaLoddi,TarcisioGulmine,Joseane ValenteSwinka Filho,Vitoldoeng2022-05-12T00:00:00Zoai:scielo:S1517-70762022000100331Revistahttp://www.materia.coppe.ufrj.br/https://old.scielo.br/oai/scielo-oai.php||materia@labh2.coppe.ufrj.br1517-70761517-7076opendoar:2022-05-12T00:00Matéria (Rio de Janeiro. Online) - Matéria (Rio de Janeiro. Online)false |
dc.title.none.fl_str_mv |
Modification of high-density polyethylene using functionalized titanium dioxide nanoparticles |
title |
Modification of high-density polyethylene using functionalized titanium dioxide nanoparticles |
spellingShingle |
Modification of high-density polyethylene using functionalized titanium dioxide nanoparticles Salum,Aline Souza High-density polyethylene hydrophobicity surface modification functionalized TiO2 silanes |
title_short |
Modification of high-density polyethylene using functionalized titanium dioxide nanoparticles |
title_full |
Modification of high-density polyethylene using functionalized titanium dioxide nanoparticles |
title_fullStr |
Modification of high-density polyethylene using functionalized titanium dioxide nanoparticles |
title_full_unstemmed |
Modification of high-density polyethylene using functionalized titanium dioxide nanoparticles |
title_sort |
Modification of high-density polyethylene using functionalized titanium dioxide nanoparticles |
author |
Salum,Aline Souza |
author_facet |
Salum,Aline Souza Veiga,Paulo Apolinário da Silva Loddi,Tarcisio Gulmine,Joseane Valente Swinka Filho,Vitoldo |
author_role |
author |
author2 |
Veiga,Paulo Apolinário da Silva Loddi,Tarcisio Gulmine,Joseane Valente Swinka Filho,Vitoldo |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Salum,Aline Souza Veiga,Paulo Apolinário da Silva Loddi,Tarcisio Gulmine,Joseane Valente Swinka Filho,Vitoldo |
dc.subject.por.fl_str_mv |
High-density polyethylene hydrophobicity surface modification functionalized TiO2 silanes |
topic |
High-density polyethylene hydrophobicity surface modification functionalized TiO2 silanes |
description |
ABSTRACT High-density polyethylene (HDPE) has many applications, including in the electrical sector, due to its excellent electrical, mechanical, and thermal properties. In insulators employed in electricity networks, the material is exposed to various adverse conditions (solar radiation, humidity, temperature cycles, and pollution), which can accelerate degradation of the polymer, modifying its properties and affecting its performance in the field. The surface resistivity of HDPE hinders the transmission of electrical current on the surface, consequently avoiding tracking. However, factors such as contamination of the surface by industrial pollutants, salt, and other agents, together with high humidity, act to decrease the surface resistivity, facilitating the flow of current between different potentials and initiating the electrical tracking process, which can lead to loss of the insulation property. In order to avoid electrical tracking, it is important to prevent the adhesion of dirt on the surface of the insulator, which can be achieved by the provision of a hydrophobic surface. The aim of this work was to modify the surface of HDPE using a coating of TiO2 nanoparticles. The nanoparticles were functionalized to optimize adhesion to the polymer surface during immersion processes, obtaining hydrophobic surfaces with self-cleaning characteristics that could improve performance when applied to insulators. Four different functionalization agents were studied, with different carbon chain lengths: trimethoxypropylsilane (TMPSi), trimethoxyoctylsilane (TMOSi), trimethoxyhexadecylsilane (TM16Si), and trimethoxyoctadecylsilane (TM18Si). The modification of the nanoparticle surface was confirmed by analysis using Fourier transform infrared (FTIR) spectroscopy. The HDPE sample surfaces showed good adhesion of the functionalized nanoparticles, with enhanced hydrophobicity. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-70762022000100331 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-70762022000100331 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/s1517-707620220001.1357 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Laboratório de Hidrogênio, Coppe - Universidade Federal do Rio de Janeiro em cooperação com a Associação Brasileira do Hidrogênio, ABH2 |
publisher.none.fl_str_mv |
Laboratório de Hidrogênio, Coppe - Universidade Federal do Rio de Janeiro em cooperação com a Associação Brasileira do Hidrogênio, ABH2 |
dc.source.none.fl_str_mv |
Matéria (Rio de Janeiro) v.27 n.1 2022 reponame:Matéria (Rio de Janeiro. Online) instname:Matéria (Rio de Janeiro. Online) instacron:RLAM |
instname_str |
Matéria (Rio de Janeiro. Online) |
instacron_str |
RLAM |
institution |
RLAM |
reponame_str |
Matéria (Rio de Janeiro. Online) |
collection |
Matéria (Rio de Janeiro. Online) |
repository.name.fl_str_mv |
Matéria (Rio de Janeiro. Online) - Matéria (Rio de Janeiro. Online) |
repository.mail.fl_str_mv |
||materia@labh2.coppe.ufrj.br |
_version_ |
1752126694853967872 |