Behaviour of wood joints glued by one component polyurethane adhesive modified by cotton flakes and basalt fibers

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F22%3APU146978" target="_blank" >RIV/00216305:26110/22:PU146978 - isvavai.cz</a>
Result on the web
<a href="http://tces.vsb.cz/Home/ArticleDetail/848" target="_blank" >http://tces.vsb.cz/Home/ArticleDetail/848</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.35181/tces-2022-0018" target="_blank" >10.35181/tces-2022-0018</a>

Result language
angličtina
Original language name
Behaviour of wood joints glued by one component polyurethane adhesive modified by cotton flakes and basalt fibers
Original language description
The main objective of this paper is to describe the influence of cotton flakes and basalt fibers on the resulting tensile properties of one-component polyurethane and the tensile shear strength of glued lap joints of beech wood. Fillers are an integral part of the modification of adhesives, especially because they influence rheological and mechanical properties. A one-component polyurethane adhesive for waterproof joints was used for bonding. The amount of filler was optimized by determining the tensile properties of adhesive as a material. The basalt fibers improved the tensile properties of one-component polyurethane. The average tensile strength value for basalt fibers in the amount of 5% was found to be 30% higher than for basalt fibers in the amount of 1%. The resulting properties of glued joints were determined by tensile shear strength according to standard ČSN EN 302-1. It was found that the shear strength of the bonded beech joints was higher for modified one-component polyurethane by cotton flakes than those modified by basalt fibers of 7 mm length. Significant effect was shown for cohesive failure of lap joint especially for modification by cotton flakes when the value increased by 10% to reference wood joint.
Czech name
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Czech description
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Project
<a href="/en/project/GA21-20645S" target="_blank" >GA21-20645S: Characterization of properties of modified isocyanate-based adhesives for structural engineered wood products</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical
Transactions of the VŠB – Technical University of Ostrava, Civil Engineering Series
ISSN
1804-4824
e-ISSN
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Volume of the periodical
22
Issue of the periodical within the volume
2
Country of publishing house
CZ - CZECH REPUBLIC
Number of pages
5
Pages from-to
69-73
UT code for WoS article
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EID of the result in the Scopus database
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