Improving the tensile shear strength of lap joints of beech wood by adding basalt fibers to polyurethane adhesive

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F24%3A00376091" target="_blank" >RIV/68407700:21110/24:00376091 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1063/5.0210477" target="_blank" >https://doi.org/10.1063/5.0210477</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/5.0210477" target="_blank" >10.1063/5.0210477</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Improving the tensile shear strength of lap joints of beech wood by adding basalt fibers to polyurethane adhesive

Popis výsledku v původním jazyce

The purpose of this study was to assess the shear strength of the lap joints of beech wood. To achieve this objective, a one-component polyurethane adhesive filled with basalt fibers was used to create waterproof joints. The shear strength of the bonded joint was carried out according to EN 302-1. The results showed that the lap joints bonded with a one-component polyurethane adhesive containing 3% basalt fibers had significantly higher shear strength. While the average value of the shear strength of lap joints glued with one-component polyurethane without the filler in the hydrothermal stress was 8.8 N/mm2, the lap joints with basalt fibers achieved more than a 14% higher average shear strength of 10.1 N/mm2. In addition, the experimental data showed a higher occurrence of joint failure in the wood substrate when the modified adhesive was used, which contrasts with the behavior observed for reference joints bonded with an unmodified one-component polyurethane adhesive without basalt fibers.

Název v anglickém jazyce

Improving the tensile shear strength of lap joints of beech wood by adding basalt fibers to polyurethane adhesive

Popis výsledku anglicky

The purpose of this study was to assess the shear strength of the lap joints of beech wood. To achieve this objective, a one-component polyurethane adhesive filled with basalt fibers was used to create waterproof joints. The shear strength of the bonded joint was carried out according to EN 302-1. The results showed that the lap joints bonded with a one-component polyurethane adhesive containing 3% basalt fibers had significantly higher shear strength. While the average value of the shear strength of lap joints glued with one-component polyurethane without the filler in the hydrothermal stress was 8.8 N/mm2, the lap joints with basalt fibers achieved more than a 14% higher average shear strength of 10.1 N/mm2. In addition, the experimental data showed a higher occurrence of joint failure in the wood substrate when the modified adhesive was used, which contrasts with the behavior observed for reference joints bonded with an unmodified one-component polyurethane adhesive without basalt fibers.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/GA21-20645S" target="_blank" >GA21-20645S: Charakterizace vlastností modifikovaných lepidel na bázi izokyanátu pro speciální lepené aplikace dřevěných prvků</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

AIP Conference Proceedings

ISBN

—

ISSN

1551-7616

e-ISSN

1551-7616

Počet stran výsledku

5

Strana od-do

"120006-1"-"120006-5"

Název nakladatele

AIP Conference Proceedings

Místo vydání

New York

Místo konání akce

Heraklion, Kréta

Datum konání akce

19. 9. 2022

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

001244923000113