Tio2-modified Pinus elliottii: A pine wood presenting increased resistance to water and ultraviolet radiation

Abstract: The aim of the present study is to subject Pinus elliottii wood specimens to TiO2-based modification in order to make them resistant to water and UV radiation. The microwave-assisted solvothermal method, which is little reported in the literature, was here in use for this purpose. The adop...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Pereira Acosta,Andrey, Zanatta,Paula, Gallio,Ezequiel, Freire,Nivaldo, Lazarotto,Marília, Gomes Jardim,Pedro Lovato, Gatto,Darci Alberto, Moreira,Mario Lucio
Lenguaje:	English
Publicado:	Universidad del Bío-Bío 2021
Materias:	Hydrophobic surface microwave system solvothermal TiO2-modified wood wood modification wood protection.
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2021000100438
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0718-221X2021000100438
record_format	dspace
spelling	oai:scielo:S0718-221X20210001004382021-05-30Tio2-modified Pinus elliottii: A pine wood presenting increased resistance to water and ultraviolet radiationPereira Acosta,AndreyZanatta,PaulaGallio,EzequielFreire,NivaldoLazarotto,MaríliaGomes Jardim,Pedro LovatoGatto,Darci AlbertoMoreira,Mario Lucio Hydrophobic surface microwave system solvothermal TiO2-modified wood wood modification wood protection. Abstract: The aim of the present study is to subject Pinus elliottii wood specimens to TiO2-based modification in order to make them resistant to water and UV radiation. The microwave-assisted solvothermal method, which is little reported in the literature, was here in use for this purpose. The adopted methodology led to a 1 % mass gain; although it was a low value, it was enough to fully coat the surface of the wood with nanoparticles to the extent of changing its characteristics and turning it into a functional material. The nanoparticle distribution on the surface of the wood changed your natural topography by increasing the surface area and, consequently, increasing the contact angle of the modified wood (approximately 130°). The leaching test showed that the wood remained coated after it was immersed in water, as well as that it did not lose its water-repelling ability. This result demonstrates the stable interaction between the two materials, due to hydroxyl radicals found in them. The coating also protected the wood against UV radiation for 500 hours of intense exposure, besides preserving its initial color. The properties achieved through this simple and fast modification process provide an alternative to help to improve the performance of the herein investigated wood species, mainly for applications in environments subjected to high solar incidence and humidity.info:eu-repo/semantics/openAccessUniversidad del Bío-BíoMaderas. Ciencia y tecnología v.23 20212021-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2021000100438en10.4067/s0718-221x2021000100438
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Hydrophobic surface microwave system solvothermal TiO2-modified wood wood modification wood protection.
spellingShingle	Hydrophobic surface microwave system solvothermal TiO2-modified wood wood modification wood protection. Pereira Acosta,Andrey Zanatta,Paula Gallio,Ezequiel Freire,Nivaldo Lazarotto,Marília Gomes Jardim,Pedro Lovato Gatto,Darci Alberto Moreira,Mario Lucio Tio2-modified Pinus elliottii: A pine wood presenting increased resistance to water and ultraviolet radiation
description	Abstract: The aim of the present study is to subject Pinus elliottii wood specimens to TiO2-based modification in order to make them resistant to water and UV radiation. The microwave-assisted solvothermal method, which is little reported in the literature, was here in use for this purpose. The adopted methodology led to a 1 % mass gain; although it was a low value, it was enough to fully coat the surface of the wood with nanoparticles to the extent of changing its characteristics and turning it into a functional material. The nanoparticle distribution on the surface of the wood changed your natural topography by increasing the surface area and, consequently, increasing the contact angle of the modified wood (approximately 130°). The leaching test showed that the wood remained coated after it was immersed in water, as well as that it did not lose its water-repelling ability. This result demonstrates the stable interaction between the two materials, due to hydroxyl radicals found in them. The coating also protected the wood against UV radiation for 500 hours of intense exposure, besides preserving its initial color. The properties achieved through this simple and fast modification process provide an alternative to help to improve the performance of the herein investigated wood species, mainly for applications in environments subjected to high solar incidence and humidity.
author	Pereira Acosta,Andrey Zanatta,Paula Gallio,Ezequiel Freire,Nivaldo Lazarotto,Marília Gomes Jardim,Pedro Lovato Gatto,Darci Alberto Moreira,Mario Lucio
author_facet	Pereira Acosta,Andrey Zanatta,Paula Gallio,Ezequiel Freire,Nivaldo Lazarotto,Marília Gomes Jardim,Pedro Lovato Gatto,Darci Alberto Moreira,Mario Lucio
author_sort	Pereira Acosta,Andrey
title	Tio2-modified Pinus elliottii: A pine wood presenting increased resistance to water and ultraviolet radiation
title_short	Tio2-modified Pinus elliottii: A pine wood presenting increased resistance to water and ultraviolet radiation
title_full	Tio2-modified Pinus elliottii: A pine wood presenting increased resistance to water and ultraviolet radiation
title_fullStr	Tio2-modified Pinus elliottii: A pine wood presenting increased resistance to water and ultraviolet radiation
title_full_unstemmed	Tio2-modified Pinus elliottii: A pine wood presenting increased resistance to water and ultraviolet radiation
title_sort	tio2-modified pinus elliottii: a pine wood presenting increased resistance to water and ultraviolet radiation
publisher	Universidad del Bío-Bío
publishDate	2021
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2021000100438
work_keys_str_mv	AT pereiraacostaandrey tio2modifiedpinuselliottiiapinewoodpresentingincreasedresistancetowaterandultravioletradiation AT zanattapaula tio2modifiedpinuselliottiiapinewoodpresentingincreasedresistancetowaterandultravioletradiation AT gallioezequiel tio2modifiedpinuselliottiiapinewoodpresentingincreasedresistancetowaterandultravioletradiation AT freirenivaldo tio2modifiedpinuselliottiiapinewoodpresentingincreasedresistancetowaterandultravioletradiation AT lazarottomarilia tio2modifiedpinuselliottiiapinewoodpresentingincreasedresistancetowaterandultravioletradiation AT gomesjardimpedrolovato tio2modifiedpinuselliottiiapinewoodpresentingincreasedresistancetowaterandultravioletradiation AT gattodarcialberto tio2modifiedpinuselliottiiapinewoodpresentingincreasedresistancetowaterandultravioletradiation AT moreiramariolucio tio2modifiedpinuselliottiiapinewoodpresentingincreasedresistancetowaterandultravioletradiation
_version_	1714202703314288640

Tio2-modified Pinus elliottii: A pine wood presenting increased resistance to water and ultraviolet radiation

Ejemplares similares