Influence of temperature on the adhesion of fibre reinforced polymers to timber surface

Influence of temperature on the adhesion of fibre reinforced polymers to timber surface

Carbon and glass fibre reinforced polymer composites are being increasingly used in timber structures, where they can be exposed to harsh temperature conditions. In order to be properly used, information is needed on their adhesion to the substrate. The objective of this research is to evaluate the...

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Main Authors: Valle, Ângela do, Moraes, Poliana Dias de, Mantovani, Giancarlo Zibetti, Fagundes, Hudson
Format: Online
Language:eng
Published: ANTAC - Associação Nacional de Tecnologia do Ambiente Construído 2019
Online Access:https://seer.ufrgs.br/ambienteconstruido/article/view/85667
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spelling ojs-article-856672019-06-17T21:12:22Z Influence of temperature on the adhesion of fibre reinforced polymers to timber surface Influence of temperature on the adhesion of fibre reinforced polymers to timber surface Valle, Ângela do Moraes, Poliana Dias de Mantovani, Giancarlo Zibetti Fagundes, Hudson Bonding; polymeric adhesives; temperature; timber; structural reinforcement Bonding; polymeric adhesives; temperature; timber; structural reinforcement Carbon and glass fibre reinforced polymer composites are being increasingly used in timber structures, where they can be exposed to harsh temperature conditions. In order to be properly used, information is needed on their adhesion to the substrate. The objective of this research is to evaluate the influence of temperatures between 20 and 80 ºC on the adhesion of these reinforcements to the wood. The shear test of adhesive line and pull-off test of the reinforcement from wood surface were carried out using specimens made of Pinus spp. The results demonstrated that temperature causes the nonlinear reduction of the reinforcement adhesion. The specimens exposed to a temperature of 80 °C presented residual bond strength means of 34% and 20% of the mean strength at room temperature for CFRP and for GFRP, respectively. Caution in using the applied resins is required due to the presented behaviour even in the service temperature range specified by the manufacturers. In this paper, experimental results concerning the influence of the temperature on the adhesion of carbon and glass fibre reinforced polymers to timber, in the temperature range from 20 to 80°C, is presented. The shear test of adhesive line and pull-off test of the reinforcement from wood surface were carried out using specimens made of Pinus spp. The results have shown that specimens exposed to a temperature of 80 °C presented residual bond strength means of 34% and 20% of the mean strength at room temperature for carbon fibre reinforced polymer (CFRP) and for glass fibre reinforced polymer (GFRP), respectively. ANTAC - Associação Nacional de Tecnologia do Ambiente Construído Texiglass Company, Program PIBIC/UFSC, CNPq Texiglass Company, Program PIBIC/UFSC, CNPq 2019-06-17 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://seer.ufrgs.br/ambienteconstruido/article/view/85667 Ambiente Construído; v. 19, n. 3 (2019); 25-38 Ambiente Construído; v. 19, n. 3 (2019); 25-38 Ambiente Construído; v. 19, n. 3 (2019); 25-38 1678-8621 1415-8876 eng https://seer.ufrgs.br/ambienteconstruido/article/view/85667/53042 https://seer.ufrgs.br/ambienteconstruido/article/downloadSuppFile/85667/48631 Direitos autorais 2019 Ambiente Construído https://creativecommons.org/licenses/by/4.0
institution Universidade Federal do Rio Grande do Sul
collection OJS
language eng
format Online
author Valle, Ângela do
Moraes, Poliana Dias de
Mantovani, Giancarlo Zibetti
Fagundes, Hudson
spellingShingle Valle, Ângela do
Moraes, Poliana Dias de
Mantovani, Giancarlo Zibetti
Fagundes, Hudson
Influence of temperature on the adhesion of fibre reinforced polymers to timber surface
author_facet Valle, Ângela do
Moraes, Poliana Dias de
Mantovani, Giancarlo Zibetti
Fagundes, Hudson
author_sort Valle, Ângela do
title Influence of temperature on the adhesion of fibre reinforced polymers to timber surface
title_short Influence of temperature on the adhesion of fibre reinforced polymers to timber surface
title_full Influence of temperature on the adhesion of fibre reinforced polymers to timber surface
title_fullStr Influence of temperature on the adhesion of fibre reinforced polymers to timber surface
title_full_unstemmed Influence of temperature on the adhesion of fibre reinforced polymers to timber surface
title_sort influence of temperature on the adhesion of fibre reinforced polymers to timber surface
description Carbon and glass fibre reinforced polymer composites are being increasingly used in timber structures, where they can be exposed to harsh temperature conditions. In order to be properly used, information is needed on their adhesion to the substrate. The objective of this research is to evaluate the influence of temperatures between 20 and 80 ºC on the adhesion of these reinforcements to the wood. The shear test of adhesive line and pull-off test of the reinforcement from wood surface were carried out using specimens made of Pinus spp. The results demonstrated that temperature causes the nonlinear reduction of the reinforcement adhesion. The specimens exposed to a temperature of 80 °C presented residual bond strength means of 34% and 20% of the mean strength at room temperature for CFRP and for GFRP, respectively. Caution in using the applied resins is required due to the presented behaviour even in the service temperature range specified by the manufacturers.
publisher ANTAC - Associação Nacional de Tecnologia do Ambiente Construído
publishDate 2019
url https://seer.ufrgs.br/ambienteconstruido/article/view/85667
work_keys_str_mv AT valleangelado influenceoftemperatureontheadhesionoffibrereinforcedpolymerstotimbersurface
AT moraespolianadiasde influenceoftemperatureontheadhesionoffibrereinforcedpolymerstotimbersurface
AT mantovanigiancarlozibetti influenceoftemperatureontheadhesionoffibrereinforcedpolymerstotimbersurface
AT fagundeshudson influenceoftemperatureontheadhesionoffibrereinforcedpolymerstotimbersurface
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