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| Naji, M. |
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| Motta, Antonella |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Petrov, R. H. | Madrid |
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| Ali, M. A. |
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| Azevedo, Nuno Monteiro |
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Więcław-Midor, Anna
in Cooperation with on an Cooperation-Score of 37%
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Publications (3/3 displayed)
- 2020The Effect of Silica-Filler on Polyurethane Adhesives Based on Renewable Resource for Wood Bondingcitations
- 2020Influence of core‐shell structure on the cure depth in photopolymerizable alumina dispersioncitations
- 2018Surface modification of alumina powder to prevent exfoliation of samples fabricated by gelcasting
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article
The Effect of Silica-Filler on Polyurethane Adhesives Based on Renewable Resource for Wood Bonding
Abstract
The aim of the study was to evaluate the applicability and performance of polyglycerol- and sucrose-based polyols as components of a simplified formulation of polyurethane adhesives. Colloidal silica was used as a viscosity control and reinforcing agent. The adhesives were examined in terms of reactivity, thermal stability, viscosity, work of adhesion, wetting, surface energy, and bonding strength on wooden substrates. Silica was found to increase gelling time, but markedly improved bonding strength and adhesion with substrates. Bonded solid beech wood samples prepared at 80, 110, and 130 °C showed shear strengths between 7.1 MPa and 9.9 MPa with 100% wood failure. The renewable resource-based polyols were demonstrated to be useful in formulation of polyurethane adhesives for furniture industry—especially with silica as a filler.