PAPER making! FROM THE PUBLISHERS OF PAPER TECHNOLOGY INTERNATIONAL ® FROM THE PUBLISHERS OF PAPER TEC Volume 11, Number 2, 2025
Preliminary the Properties of Oriented Strand Boards Produced Using Green Adhesives MARIO NÚÑEZ-DECAP 1,2 , FELIPE DÍAZ-STUARDO 1 , MARCELA VIDAL-VEGA 1 , CAMILA OPAZO- CARLSSON 1 , BORIS MOYA-ROJAS 1 & VICENTE HERNÁNDEZ-CASTILLO 2,3 Investigation of In this work, we sought to study the properties of OSB panels manufactured with new green adhesives for wood that can replace formaldehyde-based wood adhesives currently on the market. After the manufacturing of the OSB panels, physical, mechanical, thermal, and formaldehyde emissions tests were performed according to international standards. From the results, it was found that OSB panels produced with green adhesives are less susceptible to color change after UV exposure than an OSB panel manufactured with phenol-formaldehyde adhesive. Furthermore, the OSB panels produced with green adhesives presented statistically the same dimensional stability as an OSB panel manufactured with phenol-formaldehyde adhesive. In terms of mechanical properties, sample OSB-1 outperformed the control sample by 7% (MOE flatwise) and 13% (MOR edgewise) and reached 68% of the tensile strength, 85% of the internal bond strength, and 87% of the Janka hardness of the control sample. Regarding the mechanical properties and formaldehyde emissions evaluation results, all three OSB samples tested could be classified into OSB/2 of the E1 classification, which means that the OSB panels produced with green adhesives presented a performance comparable to that of the OSB panels manufactured with a formaldehyde-based wood adhesive. Hence, the green adhesives could be a potential replacement for the phenol-formaldehyde adhesive in the manufacturing of OSB panels because they yielded, in most cases, results equal to those for a control OSB panel. Contact information: 1 Department of Civil and Environmental Engineering, Universidad del Bío-Bío, Avenida Collao 1202, Concepción 4051381, Chile. 2 Centro Nacional de Excelencia Para la Industria de la Madera (CENAMAD), Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Santiago 7820436, Chile. 3 Departamento de Manejo de Bosques y Medio Ambiente, Facultad de Ciencias Forestales, Universidad de Concepción, Victoria 631, Concepción 4070386, Chile.
Buildings 2025, 15, 1702 https://doi.org/10.3390/buildings15101702 This is an open access article under the Creative Commons Attribution 4.0 International License
The Paper Industry Technical Association (PITA) is an independent organisation which operates for the general benefit of its members – both individual and corporate – dedicated to promoting and improving the technical and scientific knowledge of those working in the UK pulp and paper industry. Formed in 1960, it serves the Industry, both manufacturers and suppliers, by providing a forum for members to meet and network; it organises visits, conferences and training seminars that cover all aspects of papermaking science. It also publishes the prestigious journal Paper Technology International ® and the PITA Annual Review , both sent free to members, and a range of other technical publications which include conference proceedings and the acclaimed Essential Guide to Aqueous Coating .
Article 4 – Wood Panel – OSB Adhesives
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