Shear and adhesion strength of open and closed system heat-treated wood samples
Abstract: This paper investigated the effects of heat treatment in open (atmospheric pressure) and a closed (under pressure) system on the shear and adhesion strength of Scots pine (Pinus sylvestris) wood. In addition, pull-off adherence testing was carried out of the coatings with water-based, poly...
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| Lenguaje: | English |
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Universidad del Bío-Bío
2021
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oai:scielo:S0718-221X20210001004322021-05-30Shear and adhesion strength of open and closed system heat-treated wood samplesCan,AhmetKrystofiak,TomaszLis,Barbara Heat treatment mechanical properties Pinus sylvestris pull-off adhesion shear strength varnish. Abstract: This paper investigated the effects of heat treatment in open (atmospheric pressure) and a closed (under pressure) system on the shear and adhesion strength of Scots pine (Pinus sylvestris) wood. In addition, pull-off adherence testing was carried out of the coatings with water-based, polyurethane-based and oil/wax-based varnishes. Shear strength decreased significantly after heat treatment in Scots pine (31 % to 39 %) in the open system, while it decreased between 2 % and 38% in the closed system without glue. The shear strength of the wood samples glued with glue was higher than the samples without glue at the laboratory scale. The lower shear strength of modified wood could be attributed to other factors, such as the reduced chemical bonding or mechanical interlocking of adhesives, and the reduced strength of the brittle modified wood substrate. With increasing, heat treatment temperature adherence decreased. Maximum pull-off adhesion (4,80 MPa) was observed in the control samples coated with polyurethane-based varnish.info:eu-repo/semantics/openAccessUniversidad del Bío-BíoMaderas. Ciencia y tecnología v.23 20212021-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2021000100432en10.4067/s0718-221x2021000100432 |
| institution |
Scielo Chile |
| collection |
Scielo Chile |
| language |
English |
| topic |
Heat treatment mechanical properties Pinus sylvestris pull-off adhesion shear strength varnish. |
| spellingShingle |
Heat treatment mechanical properties Pinus sylvestris pull-off adhesion shear strength varnish. Can,Ahmet Krystofiak,Tomasz Lis,Barbara Shear and adhesion strength of open and closed system heat-treated wood samples |
| description |
Abstract: This paper investigated the effects of heat treatment in open (atmospheric pressure) and a closed (under pressure) system on the shear and adhesion strength of Scots pine (Pinus sylvestris) wood. In addition, pull-off adherence testing was carried out of the coatings with water-based, polyurethane-based and oil/wax-based varnishes. Shear strength decreased significantly after heat treatment in Scots pine (31 % to 39 %) in the open system, while it decreased between 2 % and 38% in the closed system without glue. The shear strength of the wood samples glued with glue was higher than the samples without glue at the laboratory scale. The lower shear strength of modified wood could be attributed to other factors, such as the reduced chemical bonding or mechanical interlocking of adhesives, and the reduced strength of the brittle modified wood substrate. With increasing, heat treatment temperature adherence decreased. Maximum pull-off adhesion (4,80 MPa) was observed in the control samples coated with polyurethane-based varnish. |
| author |
Can,Ahmet Krystofiak,Tomasz Lis,Barbara |
| author_facet |
Can,Ahmet Krystofiak,Tomasz Lis,Barbara |
| author_sort |
Can,Ahmet |
| title |
Shear and adhesion strength of open and closed system heat-treated wood samples |
| title_short |
Shear and adhesion strength of open and closed system heat-treated wood samples |
| title_full |
Shear and adhesion strength of open and closed system heat-treated wood samples |
| title_fullStr |
Shear and adhesion strength of open and closed system heat-treated wood samples |
| title_full_unstemmed |
Shear and adhesion strength of open and closed system heat-treated wood samples |
| title_sort |
shear and adhesion strength of open and closed system heat-treated wood samples |
| publisher |
Universidad del Bío-Bío |
| publishDate |
2021 |
| url |
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2021000100432 |
| work_keys_str_mv |
AT canahmet shearandadhesionstrengthofopenandclosedsystemheattreatedwoodsamples AT krystofiaktomasz shearandadhesionstrengthofopenandclosedsystemheattreatedwoodsamples AT lisbarbara shearandadhesionstrengthofopenandclosedsystemheattreatedwoodsamples |
| _version_ |
1714202702327578624 |