Studying effect of accelerated aging on adhesion resistance of half polyester and polyurethane transparent coatings applied on maple and pine species
In this study, effect of accelerated aging on adhesion strength of half-polyester and polyurethane transparent coatings were evaluated in maple and pine species. For this purpose, dried specimens with 12×110×550 millimeters were used. Sealer as substrate, and half-polyester and binary polyurethane a...
Guardado en:
| Autores principales: | , |
|---|---|
| Formato: | article |
| Lenguaje: | FA |
| Publicado: |
Regional Information Center for Science and Technology (RICeST)
2017
|
| Materias: | |
| Acceso en línea: | https://doaj.org/article/069b8a039fe04b94ad0862f78769b1ef |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| id |
oai:doaj.org-article:069b8a039fe04b94ad0862f78769b1ef |
|---|---|
| record_format |
dspace |
| spelling |
oai:doaj.org-article:069b8a039fe04b94ad0862f78769b1ef2021-12-02T02:20:06ZStudying effect of accelerated aging on adhesion resistance of half polyester and polyurethane transparent coatings applied on maple and pine species1735-09132383-112X10.22092/ijwpr.2017.109580https://doaj.org/article/069b8a039fe04b94ad0862f78769b1ef2017-07-01T00:00:00Zhttp://ijwpr.areeo.ac.ir/article_109580_4efba94301700bea2b9d1885a77640da.pdfhttps://doaj.org/toc/1735-0913https://doaj.org/toc/2383-112XIn this study, effect of accelerated aging on adhesion strength of half-polyester and polyurethane transparent coatings were evaluated in maple and pine species. For this purpose, dried specimens with 12×110×550 millimeters were used. Sealer as substrate, and half-polyester and binary polyurethane as coatings were applied on wood. Coatings were implemented thereby film applicator and gun methods, and accelerated aging test of wood specimens was carried out according to ASTM D1037. Results indicated that maximum value of adhesion strength is belong to binary polyurethane in maple applied by film applicator and minimum for half-polyester in pine applied by gun method, in opposite. Due to thin film, velocity variations in gun method by painter person, and consequent rapid evaporation of thinner, adhesion decreased in comparison with film applicator method. Also it's found that accelerated aging diminished adhesion strength of coatings in both maple and pine species. It can be concluded during the accelerated aging test, the steam causes moisture absorption and swelling of the fibers near the surface and thus reduce the resistance of the coating adhesion.Long-term effect of humidity and aging makes Ecowool quickly lose their stickiness.And the effect of floating in the water samples, lignin degradation products in the process of steaming and freezing and heating washed by water And cause the loosening of the cellulosic fibers in the wood, resulting in wood adhesive strength is significantly reduced due to the accelerated aging test.Fatemeh Hasani KhorshidiMehdi EmadiRegional Information Center for Science and Technology (RICeST)articleaccelerated agingMAPLEpineAdhesion strengthhalf-polyesterPolyurethaneForestrySD1-669.5FAتحقیقات علوم چوب و کاغذ ایران, Vol 32, Iss 2, Pp 205-214 (2017) |
| institution |
DOAJ |
| collection |
DOAJ |
| language |
FA |
| topic |
accelerated aging MAPLE pine Adhesion strength half-polyester Polyurethane Forestry SD1-669.5 |
| spellingShingle |
accelerated aging MAPLE pine Adhesion strength half-polyester Polyurethane Forestry SD1-669.5 Fatemeh Hasani Khorshidi Mehdi Emadi Studying effect of accelerated aging on adhesion resistance of half polyester and polyurethane transparent coatings applied on maple and pine species |
| description |
In this study, effect of accelerated aging on adhesion strength of half-polyester and polyurethane transparent coatings were evaluated in maple and pine species. For this purpose, dried specimens with 12×110×550 millimeters were used. Sealer as substrate, and half-polyester and binary polyurethane as coatings were applied on wood. Coatings were implemented thereby film applicator and gun methods, and accelerated aging test of wood specimens was carried out according to ASTM D1037. Results indicated that maximum value of adhesion strength is belong to binary polyurethane in maple applied by film applicator and minimum for half-polyester in pine applied by gun method, in opposite. Due to thin film, velocity variations in gun method by painter person, and consequent rapid evaporation of thinner, adhesion decreased in comparison with film applicator method. Also it's found that accelerated aging diminished adhesion strength of coatings in both maple and pine species. It can be concluded during the accelerated aging test, the steam causes moisture absorption and swelling of the fibers near the surface and thus reduce the resistance of the coating adhesion.Long-term effect of humidity and aging makes Ecowool quickly lose their stickiness.And the effect of floating in the water samples, lignin degradation products in the process of steaming and freezing and heating washed by water And cause the loosening of the cellulosic fibers in the wood, resulting in wood adhesive strength is significantly reduced due to the accelerated aging test. |
| format |
article |
| author |
Fatemeh Hasani Khorshidi Mehdi Emadi |
| author_facet |
Fatemeh Hasani Khorshidi Mehdi Emadi |
| author_sort |
Fatemeh Hasani Khorshidi |
| title |
Studying effect of accelerated aging on adhesion resistance of half polyester and polyurethane transparent coatings applied on maple and pine species |
| title_short |
Studying effect of accelerated aging on adhesion resistance of half polyester and polyurethane transparent coatings applied on maple and pine species |
| title_full |
Studying effect of accelerated aging on adhesion resistance of half polyester and polyurethane transparent coatings applied on maple and pine species |
| title_fullStr |
Studying effect of accelerated aging on adhesion resistance of half polyester and polyurethane transparent coatings applied on maple and pine species |
| title_full_unstemmed |
Studying effect of accelerated aging on adhesion resistance of half polyester and polyurethane transparent coatings applied on maple and pine species |
| title_sort |
studying effect of accelerated aging on adhesion resistance of half polyester and polyurethane transparent coatings applied on maple and pine species |
| publisher |
Regional Information Center for Science and Technology (RICeST) |
| publishDate |
2017 |
| url |
https://doaj.org/article/069b8a039fe04b94ad0862f78769b1ef |
| work_keys_str_mv |
AT fatemehhasanikhorshidi studyingeffectofacceleratedagingonadhesionresistanceofhalfpolyesterandpolyurethanetransparentcoatingsappliedonmapleandpinespecies AT mehdiemadi studyingeffectofacceleratedagingonadhesionresistanceofhalfpolyesterandpolyurethanetransparentcoatingsappliedonmapleandpinespecies |
| _version_ |
1718402509536493568 |