Bonding of Selected Hardwoods with PVAc Adhesive
The bonding of wood with assembly adhesives is crucial for manufacturing wood composites, such as solid wood panels, glulam, furniture parts, and sport and musical instruments. This work investigates 13 hardwoods—bangkirai, beech, black locust, bubinga, ipé, iroko, maçaranduba, meranti, oak, palisan...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-12-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/11/1/67 |
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| author | Ján Iždinský Ladislav Reinprecht Ján Sedliačik Jozef Kúdela Viera Kučerová |
| author_facet | Ján Iždinský Ladislav Reinprecht Ján Sedliačik Jozef Kúdela Viera Kučerová |
| author_sort | Ján Iždinský |
| collection | DOAJ |
| description | The bonding of wood with assembly adhesives is crucial for manufacturing wood composites, such as solid wood panels, glulam, furniture parts, and sport and musical instruments. This work investigates 13 hardwoods—bangkirai, beech, black locust, bubinga, ipé, iroko, maçaranduba, meranti, oak, palisander, sapelli, wengé and zebrano—and analyzes the impact of their selected structural and physical characteristics (e.g., the density, cold water extract, pH value, roughness, and wettability) on the adhesion strength with the polyvinyl acetate (PVAc) adhesive Multibond SK8. The adhesion strength of the bonded hardwoods, determined by the standard EN 205, ranged in the dry state from 9.5 MPa to 17.2 MPa, from 0.6 MPa to 2.6 MPa in the wet state, and from 8.5 MPa to 19.2 MPa in the reconditioned state. The adhesion strength in the dry state of the bonded hardwoods was not influenced by their cold water extracts, pH values, or roughness parallel with the grain. On the contrary, the adhesion strength was significantly with positive tendency influenced by their higher densities, lower roughness parameters perpendicular to the grain, and lower water contact angles. |
| first_indexed | 2024-03-10T13:49:56Z |
| format | Article |
| id | doaj.art-f7984f61e2f24eb182943fdd38d590e2 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T13:49:56Z |
| publishDate | 2020-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-f7984f61e2f24eb182943fdd38d590e22023-11-21T02:19:03ZengMDPI AGApplied Sciences2076-34172020-12-011116710.3390/app11010067Bonding of Selected Hardwoods with PVAc AdhesiveJán Iždinský0Ladislav Reinprecht1Ján Sedliačik2Jozef Kúdela3Viera Kučerová4Department of Wood Technology, Faculty of Wood Science and Technology, Technical University in Zvolen, T. G. Masaryka 24, 960 01 Zvolen, SlovakiaDepartment of Wood Technology, Faculty of Wood Science and Technology, Technical University in Zvolen, T. G. Masaryka 24, 960 01 Zvolen, SlovakiaDepartment of Furniture and Wood Products, Faculty of Wood Science and Technology, Technical University in Zvolen, T. G. Masaryka 24, 960 01 Zvolen, SlovakiaDepartment of Wood Science, Faculty of Wood Science and Technology, Technical University in Zvolen, T. G. Masaryka 24, 960 01 Zvolen, SlovakiaDepartment of Chemistry and Chemical Technology, Faculty of Wood Science and Technology, Technical University in Zvolen, T. G. Masaryka 24, 960 01 Zvolen, SlovakiaThe bonding of wood with assembly adhesives is crucial for manufacturing wood composites, such as solid wood panels, glulam, furniture parts, and sport and musical instruments. This work investigates 13 hardwoods—bangkirai, beech, black locust, bubinga, ipé, iroko, maçaranduba, meranti, oak, palisander, sapelli, wengé and zebrano—and analyzes the impact of their selected structural and physical characteristics (e.g., the density, cold water extract, pH value, roughness, and wettability) on the adhesion strength with the polyvinyl acetate (PVAc) adhesive Multibond SK8. The adhesion strength of the bonded hardwoods, determined by the standard EN 205, ranged in the dry state from 9.5 MPa to 17.2 MPa, from 0.6 MPa to 2.6 MPa in the wet state, and from 8.5 MPa to 19.2 MPa in the reconditioned state. The adhesion strength in the dry state of the bonded hardwoods was not influenced by their cold water extracts, pH values, or roughness parallel with the grain. On the contrary, the adhesion strength was significantly with positive tendency influenced by their higher densities, lower roughness parameters perpendicular to the grain, and lower water contact angles.https://www.mdpi.com/2076-3417/11/1/67hardwoodsextractivespH valueroughnesswettabilityPVAc adhesive |
| spellingShingle | Ján Iždinský Ladislav Reinprecht Ján Sedliačik Jozef Kúdela Viera Kučerová Bonding of Selected Hardwoods with PVAc Adhesive Applied Sciences hardwoods extractives pH value roughness wettability PVAc adhesive |
| title | Bonding of Selected Hardwoods with PVAc Adhesive |
| title_full | Bonding of Selected Hardwoods with PVAc Adhesive |
| title_fullStr | Bonding of Selected Hardwoods with PVAc Adhesive |
| title_full_unstemmed | Bonding of Selected Hardwoods with PVAc Adhesive |
| title_short | Bonding of Selected Hardwoods with PVAc Adhesive |
| title_sort | bonding of selected hardwoods with pvac adhesive |
| topic | hardwoods extractives pH value roughness wettability PVAc adhesive |
| url | https://www.mdpi.com/2076-3417/11/1/67 |
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