Modification of epoxy adhesives to enhance glue ductility in relation to wood adherends

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F14%3APU109724" target="_blank" >RIV/00216305:26110/14:PU109724 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Modification of epoxy adhesives to enhance glue ductility in relation to wood adherends

Popis výsledku v původním jazyce

Epoxy adhesives are a possible means of bonding wood that meet the limiting requirements for usage with parts exposed to external conditions. In comparison with other common adhesives used for load-bearing structures, thermosets usually show brittle behavior and are vulnerable to crack propagation. The reason for epoxy modification by nano particles is the increasing fracture toughness, which results in greater resistance to defect propagation. It has been proven that the application of primer has a significant effect in preventing excessive stress at the interface, as its penetration leads to the stabilization of the surface layer of the wood. An experiment was carried out using spruce wood as an adherend for an epoxy system consisting of a modified primer epoxy layer and epoxy adhesive layer. The epoxy primer was modified using micro and nano carbon blacks with different mixture treatments. The tensile shear strength and wood failure criterion were observed at the one lap shear test

Název v anglickém jazyce

Modification of epoxy adhesives to enhance glue ductility in relation to wood adherends

Popis výsledku anglicky

Epoxy adhesives are a possible means of bonding wood that meet the limiting requirements for usage with parts exposed to external conditions. In comparison with other common adhesives used for load-bearing structures, thermosets usually show brittle behavior and are vulnerable to crack propagation. The reason for epoxy modification by nano particles is the increasing fracture toughness, which results in greater resistance to defect propagation. It has been proven that the application of primer has a significant effect in preventing excessive stress at the interface, as its penetration leads to the stabilization of the surface layer of the wood. An experiment was carried out using spruce wood as an adherend for an epoxy system consisting of a modified primer epoxy layer and epoxy adhesive layer. The epoxy primer was modified using micro and nano carbon blacks with different mixture treatments. The tensile shear strength and wood failure criterion were observed at the one lap shear test

Druh

D - Stať ve sborníku

CEP obor

JN - Stavebnictví

OECD FORD obor

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Projekt

<a href="/cs/project/GAP104%2F11%2F1557" target="_blank" >GAP104/11/1557: Komplexní hodnocení trvanlivosti lepených dřevěných prvků</a><br>

Návaznosti

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

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název statě ve sborníku

International Conference on Wood Adhesives

ISBN

978-0-935018-37-0

ISSN

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e-ISSN

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Počet stran výsledku

10

Strana od-do

314-323

Název nakladatele

Forest Product Society

Místo vydání

Toronto

Místo konání akce

Toronto

Datum konání akce

9. 10. 2013

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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