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Trischler, Johann
Publications (2 of 2) Show all publications
Trischler, J., Sandberg, D. & Dorn, M. (2018). Effect of temperature during vital gluten adhesive preparation and application on shear-bond strength. Journal of Adhesion Science and Technology, 32(4), 448-455
Open this publication in new window or tab >>Effect of temperature during vital gluten adhesive preparation and application on shear-bond strength
2018 (English)In: Journal of Adhesion Science and Technology, ISSN 0169-4243, E-ISSN 1568-5616, Vol. 32, no 4, p. 448-455Article in journal (Refereed) Published
Abstract [en]

If protein-based adhesives are to become a competitive bio-based alternative to synthetic adhesives, the preparation and application methods have to be considerable improved to reduce process time and thereby improve the economy of the adhesive system. The purpose of this study was to investigate the impact of the temperature during preparation and application on the shear-bond strength of an adhesive based on vital gluten for use in wood applications. Vital gluten was used in its natural form and mixed with water of different temperatures (preparation temperature 0 °C or 20 °C), and applied on beech veneer at different temperature (application temperature –10, 20, 60 and 100 °C). Tensile shear-bond strength samples were prepared and tested according to EN 205. The results showed that an increase in veneer temperature during application of the adhesive led to a decrease in the shear-bond strength, but that the preparation temperature of the adhesive had no influence on the strength.

Place, publisher, year, edition, pages
Taylor & Francis, 2018
National Category
Wood Science Other Mechanical Engineering
Research subject
Wood Science and Engineering
Identifiers
urn:nbn:se:ltu:diva-64983 (URN)10.1080/01694243.2017.1362807 (DOI)000419353700009 ()2-s2.0-85027024483 (Scopus ID)
Note

Validerad;2017;Nivå 2;2017-11-29 (rokbeg)

Available from: 2017-08-09 Created: 2017-08-09 Last updated: 2018-01-23Bibliographically approved
Trischler, J., Sandberg, D. & Dorn, M. (2018). Vital gluten for particleboard production: effect of wood-particle moisture on board properties. Forest products journal, 68(2), 127-131
Open this publication in new window or tab >>Vital gluten for particleboard production: effect of wood-particle moisture on board properties
2018 (English)In: Forest products journal, ISSN 0015-7473, Vol. 68, no 2, p. 127-131Article in journal (Refereed) Published
Abstract [en]

The growing environmental awareness is leading to an increased interest in the use of bio-based adhesives and proteins such as vital gluten. The purpose of this study was to investigate the influence of the wood-particle moisture content, water application and press time on the internal bond strength, thickness expansion and thickness swelling of particleboards glued with vital gluten. Green and dried wood particles with similar moisture contents were achieved through drying or water addition and were blended with vital gluten powder and pressed for 1 to 3 minutes. The results show that not only the pressing time and moisture content, but also the way of achieving the moisture content has a strong impact on the performance of the boards. At comparable moisture content, never-dried (green) particles with high moisture content in combination with a dry adhesive application produced boards which performed better than boards made of dry particles with water addition to simulate liquid adhesive application.

Place, publisher, year, edition, pages
Madison (WI): Forest Products Society, 2018
Keywords
bio-based adhesive, internal bond strength, particle configuration, thickness swelling.
National Category
Other Mechanical Engineering
Research subject
Wood Science and Engineering
Identifiers
urn:nbn:se:ltu:diva-71198 (URN)10.13073/FPJ-D-17-00036 (DOI)000461045800005 ()2-s2.0-85064054911 (Scopus ID)
Note

Validerad;2019;Nivå 2;2019-04-12 (johcin)

Available from: 2018-10-13 Created: 2018-10-13 Last updated: 2019-04-23Bibliographically approved
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