Study of adhesive bondlines in modified wood with fluorescence microscopy and X-ray micro-computed tomography.
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| Title: | Study of adhesive bondlines in modified wood with fluorescence microscopy and X-ray micro-computed tomography. |
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| Authors: | Bastani, Alireza1 abastan@gwdg.de, Adamopoulos, Stergios2, Koddenberg, Tim1, Militz, Holger1 |
| Source: | International Journal of Adhesion & Adhesives. Jul2016, Vol. 68, p351-358. 8p. |
| Subjects: | Adhesive joints, Fluorescence microscopy, X-ray computed microtomography, Wood, Emulsion polymerization, Heat treatment |
| Abstract: | The quantitative penetration of three coldset wood adhesives [one-component polyurethane (PU), emulsion polymer isocyanate (EPI), poly (vinyl acetate) (PVAc)] under hydraulic pressure into different types of modified wood was studied using fluorescence microscopy and the results were compared to these of a previous study without pressure on adjacent wood samples. The effective penetration (EP) of PU was negatively affected by furfurlylation and NMM modification when pressure was applied. For PVAc, 30% NMM treatment and heat treatment of Scots pine and beech at 210 °C had a negative effect on its EP, but against this the EP of this adhesive increased after heat treatment of beech at 195 °C. In the case of furfurylation, the depth of penetration of all adhesives was less into wood treated with higher concentration of furfuryl alcohol. PU showed a much deeper penetration into NMM-modified and heat-treated wood than the other adhesives with the exception of heat-treated beech at 195 °C. Application of pressure led to rather different results as compared to the EP data when no pressure was applied. The three-dimensional (3D) visualisation of the penetration of PU adhesive into heat-treated Scots pine was also examined by X-ray micro-computed tomography (XµCT). The 3D flow pattern of PU adhesive into heat-treated Scots pine was clearly depicted by XµCT. [ABSTRACT FROM AUTHOR] |
| Copyright of International Journal of Adhesion & Adhesives is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 115825285 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Study of adhesive bondlines in modified wood with fluorescence microscopy and X-ray micro-computed tomography. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Bastani%2C+Alireza%22">Bastani, Alireza</searchLink><relatesTo>1</relatesTo><i> abastan@gwdg.de</i><br /><searchLink fieldCode="AR" term="%22Adamopoulos%2C+Stergios%22">Adamopoulos, Stergios</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Koddenberg%2C+Tim%22">Koddenberg, Tim</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Militz%2C+Holger%22">Militz, Holger</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Adhesion+%26+Adhesives%22">International Journal of Adhesion & Adhesives</searchLink>. Jul2016, Vol. 68, p351-358. 8p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Adhesive+joints%22">Adhesive joints</searchLink><br /><searchLink fieldCode="DE" term="%22Fluorescence+microscopy%22">Fluorescence microscopy</searchLink><br /><searchLink fieldCode="DE" term="%22X-ray+computed+microtomography%22">X-ray computed microtomography</searchLink><br /><searchLink fieldCode="DE" term="%22Wood%22">Wood</searchLink><br /><searchLink fieldCode="DE" term="%22Emulsion+polymerization%22">Emulsion polymerization</searchLink><br /><searchLink fieldCode="DE" term="%22Heat+treatment%22">Heat treatment</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The quantitative penetration of three coldset wood adhesives [one-component polyurethane (PU), emulsion polymer isocyanate (EPI), poly (vinyl acetate) (PVAc)] under hydraulic pressure into different types of modified wood was studied using fluorescence microscopy and the results were compared to these of a previous study without pressure on adjacent wood samples. The effective penetration (EP) of PU was negatively affected by furfurlylation and NMM modification when pressure was applied. For PVAc, 30% NMM treatment and heat treatment of Scots pine and beech at 210 °C had a negative effect on its EP, but against this the EP of this adhesive increased after heat treatment of beech at 195 °C. In the case of furfurylation, the depth of penetration of all adhesives was less into wood treated with higher concentration of furfuryl alcohol. PU showed a much deeper penetration into NMM-modified and heat-treated wood than the other adhesives with the exception of heat-treated beech at 195 °C. Application of pressure led to rather different results as compared to the EP data when no pressure was applied. The three-dimensional (3D) visualisation of the penetration of PU adhesive into heat-treated Scots pine was also examined by X-ray micro-computed tomography (XµCT). The 3D flow pattern of PU adhesive into heat-treated Scots pine was clearly depicted by XµCT. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of International Journal of Adhesion & Adhesives is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.ijadhadh.2016.04.006 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 8 StartPage: 351 Subjects: – SubjectFull: Adhesive joints Type: general – SubjectFull: Fluorescence microscopy Type: general – SubjectFull: X-ray computed microtomography Type: general – SubjectFull: Wood Type: general – SubjectFull: Emulsion polymerization Type: general – SubjectFull: Heat treatment Type: general Titles: – TitleFull: Study of adhesive bondlines in modified wood with fluorescence microscopy and X-ray micro-computed tomography. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Bastani, Alireza – PersonEntity: Name: NameFull: Adamopoulos, Stergios – PersonEntity: Name: NameFull: Koddenberg, Tim – PersonEntity: Name: NameFull: Militz, Holger IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 07 Text: Jul2016 Type: published Y: 2016 Identifiers: – Type: issn-print Value: 01437496 Numbering: – Type: volume Value: 68 Titles: – TitleFull: International Journal of Adhesion & Adhesives Type: main |
| ResultId | 1 |
