Elaboration and characterization of engineered floors made with woods of different densities
A possible option to increase the value of low-density woods may be to combine species with different densities. The manufacture of boards involving joining and mixing wood with different properties is known as an engineering product. The present work aimed to design, produce, and evaluate a 16 mm-t...
| Main Authors: | , , , |
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| Format: | Online |
| Language: | spa |
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Instituto de Ecología, A.C.
2023
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| Online Access: | https://myb.ojs.inecol.mx/index.php/myb/article/view/2439 |
| _version_ | 1799769437666017280 |
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| author | Barrera Cruz, Omar Isaí Rodríguez Anda, Raúl Silva Guzmán, José Antonio Fuentes Talavera, Francisco Javier |
| author_facet | Barrera Cruz, Omar Isaí Rodríguez Anda, Raúl Silva Guzmán, José Antonio Fuentes Talavera, Francisco Javier |
| author_sort | Barrera Cruz, Omar Isaí |
| collection | MYB |
| description | A possible option to increase the value of low-density woods may be to combine species with different densities. The manufacture of boards involving joining and mixing wood with different properties is known as an engineering product. The present work aimed to design, produce, and evaluate a 16 mm-thick three-layer engineered floor using coconut palm (Cocos nucifera) or melina (Gmelina arborea) as substrate and reinforced with red oak (Quercus castanea) using three types of adhesives: urea formaldehyde, henkel loctite and soy furfural. The results, with both wood substrates, showed an average specific weight of 0.53 g cm-3 and an average moisture content of 9%. The flexural strength ranged from 12 MPa to 62 MPa and from 1346 MPa to 10 660 MPa in modulus of elasticity, the combination of oak-melina-oak with urea formaldehyde being the one that presented the best results. Brinell hardness exhibits strengths from 30 N mm-2 to 48 N mm-2 with the oak-palm-oak combination with loctite achieving the highest value. The shear resistance of the gluing line renged from 0.11 MPa to 3.46 MPa, with the oak-palm-oak with soya furfural, oak-palm-oak with urea formaldehyde, as well as oak-melina-oak urea formaldehyde combinations showing no statistical differences. In delamination, floors with urea formaldehyde and furfural soy are susceptible to delamination by direct contact with water and while being subjected to dry changes in relative humidity in the environment of 35% and 55%. |
| format | Online |
| id | oai:oai.myb.ojs.inecol.mx:article-2439 |
| institution | Madera y Bosques |
| language | spa |
| publishDate | 2023 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.myb.ojs.inecol.mx:article-24392023-12-19T22:35:53Z Elaboration and characterization of engineered floors made with woods of different densities Elaboración y caracterización de pisos de ingeniería elaborados con maderas de diferentes densidades Barrera Cruz, Omar Isaí Rodríguez Anda, Raúl Silva Guzmán, José Antonio Fuentes Talavera, Francisco Javier Adhesivo verde Cocos nucifera delaminación Gmelina arborea propiedades físico-mecánícas Quercus castanea green adhesive Cocos nucifera delamination Gmelina arborea physical-mechanical properties Quercus castanea A possible option to increase the value of low-density woods may be to combine species with different densities. The manufacture of boards involving joining and mixing wood with different properties is known as an engineering product. The present work aimed to design, produce, and evaluate a 16 mm-thick three-layer engineered floor using coconut palm (Cocos nucifera) or melina (Gmelina arborea) as substrate and reinforced with red oak (Quercus castanea) using three types of adhesives: urea formaldehyde, henkel loctite and soy furfural. The results, with both wood substrates, showed an average specific weight of 0.53 g cm-3 and an average moisture content of 9%. The flexural strength ranged from 12 MPa to 62 MPa and from 1346 MPa to 10 660 MPa in modulus of elasticity, the combination of oak-melina-oak with urea formaldehyde being the one that presented the best results. Brinell hardness exhibits strengths from 30 N mm-2 to 48 N mm-2 with the oak-palm-oak combination with loctite achieving the highest value. The shear resistance of the gluing line renged from 0.11 MPa to 3.46 MPa, with the oak-palm-oak with soya furfural, oak-palm-oak with urea formaldehyde, as well as oak-melina-oak urea formaldehyde combinations showing no statistical differences. In delamination, floors with urea formaldehyde and furfural soy are susceptible to delamination by direct contact with water and while being subjected to dry changes in relative humidity in the environment of 35% and 55%. Una opción para incrementar el valor de las maderas de baja densidad puede ser el combinarlas con especies de densidades más altas. A los productos que combinan madera de diferentes propiedades se les conoce como productos de ingeniería. El presente trabajo tuvo como objetivo diseñar, producir y evaluar, a través de sus propiedades físicomecánicas, un piso de ingeniería de 16 mm de espesor. Este producto se conformó de tres capas, utilizando palma de coco (Cocos nucifera) o melina (Gmelina arborea) como sustrato y encino rojo (Quercus castanea) como refuerzo. Se ensayaron tres tipos de adhesivos: urea formaldehido, henkel loctite y soya furfural. Con los dos sustratos utilizados, se obtuvo una densidad normal promedio de 0.53 g cm-3 a un contenido de humedad promedio de 9%. La resistencia a la flexión fluctuó entre 12 MPa y 62 MPa y el módulo de elasticidad entre 1346 MPa y 10 660 MPa. La combinación de encino-melina-encino con urea formaldehido fue la que presentó los mejores resultados. La dureza Brinell exhibió valores de 30 N mm-2 a 48 N mm-2 y la combinación encino-palma-encino con loctite fue la que arrojó el mayor valor. La resistencia al cortante de la línea de encolado fue de 0.11 MPa a 3.46 MPa. Las combinaciones encino-palma-encino soya furfural, encino-palma-encino urea formaldehido, así como encino-melina-encino urea formaldehido no presentaron diferencias estadísticas significativas en la resistencia de la línea adhesiva. Los pisos con urea formaldehido y con soya furfural fueron susceptibles a la delaminación al contacto directo con el agua y ante cambios de humedad relativa en el ambiente de 35% y 55%. Instituto de Ecología, A.C. 2023-12-18 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo evaluado por pares application/pdf https://myb.ojs.inecol.mx/index.php/myb/article/view/2439 10.21829/myb.2023.2922439 Madera y Bosques; Vol. 29 No. 2 (2023): Summer 2023; e2922439 Madera y Bosques; Vol. 29 Núm. 2 (2023): Verano 2023; e2922439 2448-7597 1405-0471 spa https://myb.ojs.inecol.mx/index.php/myb/article/view/2439/2475 10.21829/myb.2020.2621062 http://creativecommons.org/licenses/by-nc-sa/4.0 |
| spellingShingle | Barrera Cruz, Omar Isaí Rodríguez Anda, Raúl Silva Guzmán, José Antonio Fuentes Talavera, Francisco Javier Elaboration and characterization of engineered floors made with woods of different densities |
| title | Elaboration and characterization of engineered floors made with woods of different densities |
| title_full | Elaboration and characterization of engineered floors made with woods of different densities |
| title_fullStr | Elaboration and characterization of engineered floors made with woods of different densities |
| title_full_unstemmed | Elaboration and characterization of engineered floors made with woods of different densities |
| title_short | Elaboration and characterization of engineered floors made with woods of different densities |
| title_sort | elaboration and characterization of engineered floors made with woods of different densities |
| url | https://myb.ojs.inecol.mx/index.php/myb/article/view/2439 |
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