Now showing 1 - 10 of 71
  • 2013Journal Article
    [["dc.bibliographiccitation.firstpage","685"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","Wood Science and Technology"],["dc.bibliographiccitation.lastpage","699"],["dc.bibliographiccitation.volume","47"],["dc.contributor.author","Pries, Malte"],["dc.contributor.author","Wagner, Roland"],["dc.contributor.author","Kaesler, Karl-Heinz"],["dc.contributor.author","Militz, Holger"],["dc.contributor.author","Mai, Carsten"],["dc.date.accessioned","2018-11-07T09:23:27Z"],["dc.date.available","2018-11-07T09:23:27Z"],["dc.date.issued","2013"],["dc.description.abstract","Scots pine sapwood was acetylated with ethyltriacetoxysilane using acetic acid as a solvent and sulfuric acid as a catalyst. A weight percent gain (WPG) of 14 % and cell wall bulking of 7 % were obtained after 5 h of reaction time. Pine specimens were acetylated with acetic anhydride in the presence of 1 % ethyltriacetoxysilane, dihydroxy-functional siloxane, acetoxy-functional siloxane, amino-functional siloxane and non-functional siloxane, respectively. Acetoxy-functional siloxane induced the greatest reduction in water uptake with a water repellent effectiveness after 24 h of up to 62 % as compared to acetylated wood. WPG and cell wall bulking increased compared to solely acetylated wood with increasing concentrations of acetoxy-functional siloxane in acetic anhydride; anti-shrink efficiency, however, did not increase. Fungal resistance of pine sapwood and beech as well as mechanical strength properties did not change when 20 % acetoxy-functional siloxane was added to acetic anhydride compared to solely acetylated specimens."],["dc.identifier.doi","10.1007/s00226-013-0535-x"],["dc.identifier.isi","000320282100003"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/10286"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/29581"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.relation.issn","0043-7719"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","Acetylation of wood in combination with polysiloxanes to improve water-related and mechanical properties of wood"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]
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  • 2011Journal Article
    [["dc.bibliographiccitation.firstpage","103"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Wood Science and Technology"],["dc.bibliographiccitation.lastpage","110"],["dc.bibliographiccitation.volume","45"],["dc.contributor.author","Larnoy, Erik"],["dc.contributor.author","Eikenes, Morten"],["dc.contributor.author","Militz, Holger"],["dc.date.accessioned","2018-11-07T08:59:40Z"],["dc.date.available","2018-11-07T08:59:40Z"],["dc.date.issued","2011"],["dc.description.abstract","The aim of this study was to use energy-dispersive X-ray spectroscopy (EDX) to localize chitosan in the cell wall of chitosan-impregnated Scots pine. It was of interest to investigate the concentration of chitosan in wood to gain further knowledge and understanding of the distribution of chitosan in the wooden matrix. After deacetylation, chitosan was re-acetylated with chloroacetic anhydride to achieve a covalent bonding of chloride to the chitosan polymer. Chloride-labelled chitosan was measured by EDX using a scanning electron microscope and described as chloride intensity. Analysis of free chloride anions was performed by dialysis and inductively coupled plasma atomic emission spectroscopy. There was a significant correlation between the molecular weight of chitosan and the intensity of covalent-bonded chloride to the chitosan polymer. High molecular weight chitosan showed a better interaction with the cell wall structure than low molecular chitosan."],["dc.description.sponsorship","Research Council of Norway (NFR)"],["dc.identifier.doi","10.1007/s00226-010-0306-x"],["dc.identifier.isi","000286195200008"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/7297"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/23956"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.relation.issn","0043-7719"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","Detection of chlorine-labelled chitosan in Scots pine by energy-dispersive X-ray spectroscopy"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]
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  • 2022Journal Article Research Paper
    [["dc.bibliographiccitation.firstpage","3665"],["dc.bibliographiccitation.issue","10"],["dc.bibliographiccitation.journal","Materials"],["dc.bibliographiccitation.volume","15"],["dc.contributor.author","Slabohm, Maik"],["dc.contributor.author","Mai, Carsten"],["dc.contributor.author","Militz, Holger"],["dc.date.accessioned","2022-06-01T09:40:00Z"],["dc.date.available","2022-06-01T09:40:00Z"],["dc.date.issued","2022"],["dc.date.updated","2022-06-05T22:52:18Z"],["dc.description.abstract","The purpose of this review is to put previous research findings on acetylated wood and the fabrication of veneer-based products in a common context. The first research on wood acetylation was already conducted in the 1920s using wood meal, whereas relevant research on veneer acetylation was published nearly two decades later, during the 1940s. In the years that followed, a great deal of research has been done on both solid wood and composite acetylation. Developments in the 1990s and early 2000s resulted in the creation of commercial products. Nowadays, wood is becoming increasingly popular in construction. Therefore, high-performance materials with high dimensional stability and durability are required. Veneers are thereby of particular relevance because of their propensity to absorb chemicals into even tough-to-treat wood species. However, acetylation alters the bonding properties of wood, which is important for the manufacture of engineered veneer products, especially in load-bearing construction. A large amount of research is now being conducted on the acetylation of veneer, and acetylated veneer products are anticipated in the near future. This study covers the fundamentals of bonding but focuses specifically on veneer acetylation and its fabrication to engineered veneer-based products. The influencing factors of acetylation on bonding are also discussed."],["dc.description.sponsorship","Open-Access-Publikationsfonds 2022"],["dc.identifier.doi","10.3390/ma15103665"],["dc.identifier.pii","ma15103665"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/108612"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-572"],["dc.relation.eissn","1996-1944"],["dc.rights","CC BY 4.0"],["dc.title","Bonding Acetylated Veneer for Engineered Wood Products—A Review"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]
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  • 2021Journal Article
    [["dc.bibliographiccitation.firstpage","3267"],["dc.bibliographiccitation.issue","19"],["dc.bibliographiccitation.journal","Polymers"],["dc.bibliographiccitation.volume","13"],["dc.contributor.author","Jiang, Wen"],["dc.contributor.author","Hosseinpourpia, Reza"],["dc.contributor.author","Biziks, Vladimirs"],["dc.contributor.author","Ahmed, Sheikh Ali"],["dc.contributor.author","Militz, Holger"],["dc.contributor.author","Adamopoulos, Stergios"],["dc.contributor.editor","Magalhães, Fernão D."],["dc.date.accessioned","2021-12-01T09:23:09Z"],["dc.date.available","2021-12-01T09:23:09Z"],["dc.date.issued","2021"],["dc.description.abstract","Polyurethane (PU) adhesives were prepared with bio-polyols obtained via acid-catalyzed polyhydric alcohol liquefaction of wood sawdust and polymeric diphenylmethane diisocyanate (pMDI). Two polyols, i.e., crude and purified liquefied wood (CLW and PLW), were obtained from the liquefaction process with a high yield of 99.7%. PU adhesives, namely CLWPU and PLWPU, were then prepared by reaction of CLW or PLW with pMDI at various isocyanate to hydroxyl group (NCO:OH) molar ratios of 0.5:1, 1:1, 1.5:1, and 2:1. The chemical structure and thermal behavior of the bio-polyols and the cured PU adhesives were analyzed by Fourier transform infrared spectroscopy (FTIR) and thermogravimetric analysis (TGA). Performance of the adhesives was evaluated by single-lap joint shear tests according to EN 302-1:2003, and by adhesive penetration. The highest shear strength was found at the NCO:OH molar ratio of 1.5:1 as 4.82 ± 1.01 N/mm2 and 4.80 ± 0.49 N/mm2 for CLWPU and PLWPU, respectively. The chemical structure and thermal properties of the cured CLWPU and PLWPU adhesives were considerably influenced by the NCO:OH molar ratio."],["dc.description.abstract","Polyurethane (PU) adhesives were prepared with bio-polyols obtained via acid-catalyzed polyhydric alcohol liquefaction of wood sawdust and polymeric diphenylmethane diisocyanate (pMDI). Two polyols, i.e., crude and purified liquefied wood (CLW and PLW), were obtained from the liquefaction process with a high yield of 99.7%. PU adhesives, namely CLWPU and PLWPU, were then prepared by reaction of CLW or PLW with pMDI at various isocyanate to hydroxyl group (NCO:OH) molar ratios of 0.5:1, 1:1, 1.5:1, and 2:1. The chemical structure and thermal behavior of the bio-polyols and the cured PU adhesives were analyzed by Fourier transform infrared spectroscopy (FTIR) and thermogravimetric analysis (TGA). Performance of the adhesives was evaluated by single-lap joint shear tests according to EN 302-1:2003, and by adhesive penetration. The highest shear strength was found at the NCO:OH molar ratio of 1.5:1 as 4.82 ± 1.01 N/mm2 and 4.80 ± 0.49 N/mm2 for CLWPU and PLWPU, respectively. The chemical structure and thermal properties of the cured CLWPU and PLWPU adhesives were considerably influenced by the NCO:OH molar ratio."],["dc.identifier.doi","10.3390/polym13193267"],["dc.identifier.pii","polym13193267"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/94574"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-478"],["dc.publisher","MDPI"],["dc.relation.eissn","2073-4360"],["dc.rights","Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/)."],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0/"],["dc.title","Preparation of Polyurethane Adhesives from Crude and Purified Liquefied Wood Sawdust"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]
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  • 2022Journal Article Research Paper
    [["dc.bibliographiccitation.firstpage","3855"],["dc.bibliographiccitation.issue","10"],["dc.bibliographiccitation.journal","Sensors"],["dc.bibliographiccitation.volume","22"],["dc.contributor.affiliation","Stolze, Hannes; 1Wood Biology and Wood Products, Faculty of Forest Sciences and Forest Ecology, University of Goettingen, Buesgenweg 4, 37077 Goettingen, Germany; michael.gurnik@uni-goettingen.de (M.G.); tim.koddenberg@uni-goettingen.de (T.K.); holger.militz@uni-goettingen.de (H.M.)"],["dc.contributor.affiliation","Gurnik, Michael; 1Wood Biology and Wood Products, Faculty of Forest Sciences and Forest Ecology, University of Goettingen, Buesgenweg 4, 37077 Goettingen, Germany; michael.gurnik@uni-goettingen.de (M.G.); tim.koddenberg@uni-goettingen.de (T.K.); holger.militz@uni-goettingen.de (H.M.)"],["dc.contributor.affiliation","Koddenberg, Tim; 1Wood Biology and Wood Products, Faculty of Forest Sciences and Forest Ecology, University of Goettingen, Buesgenweg 4, 37077 Goettingen, Germany; michael.gurnik@uni-goettingen.de (M.G.); tim.koddenberg@uni-goettingen.de (T.K.); holger.militz@uni-goettingen.de (H.M.)"],["dc.contributor.affiliation","Kröger, Jonas; 2Department for Cutting and Joining Manufacturing Processes, Institute of Production Technology and Logistics, University of Kassel, Kurt-Wolters-Straße 3, 34125 Kassel, Germany; jonas.kroeger@unity-mail.de"],["dc.contributor.affiliation","Köhler, Robert; 3Laboratory of Laser and Plasma Technologies, Faculty of Engineering and Health, University of Applied Sciences and Arts, Von-Ossietzky-Straße 99, 37085 Goettingen, Germany; robert.koehler@hawk.de (R.K.); wolfgang.vioel@hawk.de (W.V.)"],["dc.contributor.affiliation","Viöl, Wolfgang; 3Laboratory of Laser and Plasma Technologies, Faculty of Engineering and Health, University of Applied Sciences and Arts, Von-Ossietzky-Straße 99, 37085 Goettingen, Germany; robert.koehler@hawk.de (R.K.); wolfgang.vioel@hawk.de (W.V.)"],["dc.contributor.affiliation","Militz, Holger; 1Wood Biology and Wood Products, Faculty of Forest Sciences and Forest Ecology, University of Goettingen, Buesgenweg 4, 37077 Goettingen, Germany; michael.gurnik@uni-goettingen.de (M.G.); tim.koddenberg@uni-goettingen.de (T.K.); holger.militz@uni-goettingen.de (H.M.)"],["dc.contributor.author","Stolze, Hannes"],["dc.contributor.author","Gurnik, Michael"],["dc.contributor.author","Koddenberg, Tim"],["dc.contributor.author","Kröger, Jonas"],["dc.contributor.author","Köhler, Robert"],["dc.contributor.author","Viöl, Wolfgang"],["dc.contributor.author","Militz, Holger"],["dc.date.accessioned","2022-06-01T09:40:01Z"],["dc.date.available","2022-06-01T09:40:01Z"],["dc.date.issued","2022"],["dc.date.updated","2022-06-05T22:12:47Z"],["dc.description.abstract","In this study, the surface parameters wettability, roughness, and adhesive penetration, which are important for wood bonding, were investigated and evaluated utilizing non-destructive methods after different mechanical processing. For this purpose, beech and birch finger joints were prepared with different cutting combinations (three cutters with different sharpness levels and two feed rates) in an industrial process. Effects and interactions on the surface parameters resulting from the different cutting combinations were evaluated using three Full Factorial Designs. The various cutting parameters had a predominantly significant influence on the surface parameters. The effects and identified interactions highlight the complexity of the cutting surface and the importance of wood bonding. In this respect, a new finding is that with sharper cutters, higher contact angles of the adhesives occur. The methods (contact angle measurement, laser scanning microscopy, and brightfield microscopy) used were well suited to make effects visible and quantifiable, which can be of interest for the quality control of the wood processing industry. The results can help to better understand and evaluate the design of wood surfaces via machining and the bonding of hardwoods. Possibly the results can contribute to further standardizing the production of load-bearing hardwood finger joints and making them more efficient."],["dc.description.sponsorship","German Federal Ministry for Economic Affairs and Energy (BMWi) through the Central Innovation Programme for small and medium-sized enterprises (SMEs)"],["dc.description.sponsorship","Open-Access-Publikationsfonds 2022"],["dc.identifier.doi","10.3390/s22103855"],["dc.identifier.pii","s22103855"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/108618"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-572"],["dc.relation.eissn","1424-8220"],["dc.rights","CC BY 4.0"],["dc.title","Non-Destructive Evaluation of the Cutting Surface of Hardwood Finger Joints"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]
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  • 2013Journal Article
    [["dc.bibliographiccitation.firstpage","421"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","Holzforschung"],["dc.bibliographiccitation.lastpage","427"],["dc.bibliographiccitation.volume","67"],["dc.contributor.author","Ghosh, Shyamal C."],["dc.contributor.author","Militz, Holger"],["dc.contributor.author","Mai, Carsten"],["dc.date.accessioned","2018-11-07T09:25:20Z"],["dc.date.available","2018-11-07T09:25:20Z"],["dc.date.issued","2013"],["dc.description.abstract","The water-related properties of Scots pine (Pinus sylvestris L.) sapwood have been improved by treatment with quat-and amino-silicones of different chain lengths. Standard leaching test and hot water Soxhlet extraction (6 h) showed that the amino-silicones are better fixed in wood than the quat-silicones. A water dipping test (24 h) revealed that both quat- and amino-silicones made wood hydrophobic; however, amino-silicones were more effective in reducing water uptake. The long-chained silicones of both types resulted in higher water repellent effectiveness compared with the respective short-chained silicones. As demonstrated by assessing cell wall bulking, scanning electron microscopy (SEM), and SEM energy-dispersive X-ray analysis, silicones with short chains penetrated the cell wall better than those with long chains regardless of the silicone type. The maximum antishrink efficiency of approximately 60% was attained with short-chained amino-silicone at approximately 39% weight percent gain. The short-chained silicones show more potential to enhance the water-related properties of solid wood and for the development of silicone-based industrial wood modification processes."],["dc.identifier.doi","10.1515/hf-2012-0103"],["dc.identifier.isi","000318222500009"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/10796"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/30040"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Walter De Gruyter Gmbh"],["dc.relation.issn","0018-3830"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","Modification of Pinus sylvestris L. wood with quat- and amino-silicones of different chain lengths"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]
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  • 2012Journal Article
    [["dc.bibliographiccitation.firstpage","1033"],["dc.bibliographiccitation.issue","6"],["dc.bibliographiccitation.journal","Wood Science and Technology"],["dc.bibliographiccitation.lastpage","1041"],["dc.bibliographiccitation.volume","46"],["dc.contributor.author","Ghosh, Shyamal C."],["dc.contributor.author","Peters, Brenton C."],["dc.contributor.author","Fitzgerald, Chris J."],["dc.contributor.author","Militz, Holger"],["dc.contributor.author","Mai, Carsten"],["dc.date.accessioned","2018-11-07T09:04:13Z"],["dc.date.available","2018-11-07T09:04:13Z"],["dc.date.issued","2012"],["dc.description.abstract","Scots pine (Pinus sylvestris L.) sapwood was treated with quat-silicone micro-emulsion (< 40 nm), amino-silicone macro-emulsion (110 nm), alkyl-modified silicone macro-emulsion (740 nm) and solutions of inorganic water glass. Three treatment concentrations of 5, 15 and 30% (w/w) were used for the impregnation of the test specimens. Termite resistance was assessed following a 16-week field trial conducted in northern Queensland, Australia. Two different field sites were chosen for exposure to feeding by Coptotermes acinaciformis (Froggatt) and Mastotermes darwiniensis (Froggatt). Following exposure, the test and feeder specimens were inspected and assessed for termite damage using a visual rating system (from 10 sound to 0 completely destroyed) and individual mass losses. The specimens treated with quat- and amino-silicone emulsions resisted damage by both termite species, even at less than 15% weight percent gains (WPGs). Alkyl-modified silicone macro-emulsion and water glass treatment induced somewhat less resistance to termite damage, but imparted protection at higher WPGs."],["dc.identifier.doi","10.1007/s00226-012-0464-0"],["dc.identifier.isi","000310225800002"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/8792"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/25068"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.relation.issn","0043-7719"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","Resistance of Scots pine (Pinus sylvestris L.) wood modified with functionalized commercial silicone emulsions against subterranean termites"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]
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  • 2011Journal Article Discussion
    [["dc.bibliographiccitation.firstpage","329"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","European Journal of Wood and Wood Products"],["dc.bibliographiccitation.lastpage","332"],["dc.bibliographiccitation.volume","69"],["dc.contributor.author","Avramidis, Georg"],["dc.contributor.author","Nothnick, E."],["dc.contributor.author","Militz, Holger"],["dc.contributor.author","Vioel, Wolfgang"],["dc.contributor.author","Wolkenhauer, Arndt"],["dc.date.accessioned","2018-11-07T08:56:46Z"],["dc.date.available","2018-11-07T08:56:46Z"],["dc.date.issued","2011"],["dc.description.abstract","In this study the effect of plasma treatment at atmospheric pressure of wood veneers on the curing behaviour of a PVAc adhesive was investigated. Time-dependent shear bond strength tests on untreated and plasma-treated maple (Acer pseudoplanatus), oak (Quercus sp.), beech (Fagus sylvatica) and teak (Tectona grandis) veneers were carried out. The results confirm that plasma treatment accelerated curing of the PVAc adhesive on the wood veneers."],["dc.identifier.doi","10.1007/s00107-010-0429-7"],["dc.identifier.isi","000289438300021"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/7512"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/23225"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.relation.issn","1436-736X"],["dc.relation.issn","0018-3768"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","Accelerated curing of PVAc adhesive on plasma-treated wood veneers"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.subtype","letter_note"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]
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  • 2018Journal Article
    [["dc.bibliographiccitation.firstpage","1"],["dc.bibliographiccitation.journal","Advances in Condensed Matter Physics"],["dc.bibliographiccitation.lastpage","11"],["dc.bibliographiccitation.volume","2018"],["dc.contributor.author","Wallenhorst, L."],["dc.contributor.author","Rerich, R."],["dc.contributor.author","Vovk, M."],["dc.contributor.author","Dahle, S."],["dc.contributor.author","Militz, H."],["dc.contributor.author","Ohms, G."],["dc.contributor.author","Viöl, W."],["dc.date.accessioned","2019-07-09T11:45:04Z"],["dc.date.available","2019-07-09T11:45:04Z"],["dc.date.issued","2018"],["dc.description.abstract","This study investigated themorphologic and chemical properties of coatings based on PMMA/ATH powder and deposited by cold plasma spraying on wood and glass. Since the deposition of pure PMMA/ATH powder with air as process gas yielded coatings with insufficient abrasion resistance, two modifications of the basic process were investigated. Previous studies showed that replacing air as process gas with forming gas did not enhance the abrasion resistance, but the addition of a phenol-formaldehyde resin (PF) succeeded in stabilising the particle coatings. In thiswork, results frommorphologic and chemical analysis suggestedanencasement of the PMMA/ATH particles by plasma-modified PF and thus a fusion of individual particles, explaining the enhanced bonding. Moreover, adhesion tests confirmed an outstanding bonding between the coating and wood as well as glass, which is assumed to result from interactions between the PF’s hydroxyl groups and functional groups on the substrates’ surfaces. Studies on the wettability revealed a hydrophobic character of such coatings, therefore generally indicating a possible application, for example, to reduce water uptake by wooden materials."],["dc.identifier.doi","10.1155/2018/3539417"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/15027"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/59155"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.relation.issn","1687-8124"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.subject.ddc","570"],["dc.title","Morphologic and Chemical Properties of PMMA/ATH Layers with Enhanced Abrasion Resistance Realised by Cold Plasma Spraying at Atmospheric Pressure"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]
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  • 2011Journal Article
    [["dc.bibliographiccitation.firstpage","49"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Wood Science and Technology"],["dc.bibliographiccitation.lastpage","61"],["dc.bibliographiccitation.volume","45"],["dc.contributor.author","Xie, Yanjun"],["dc.contributor.author","Hill, Callum A. S."],["dc.contributor.author","Xiao, Zefang"],["dc.contributor.author","Mai, Carsten"],["dc.contributor.author","Militz, Holger"],["dc.date.accessioned","2018-11-07T09:00:00Z"],["dc.date.available","2018-11-07T09:00:00Z"],["dc.date.issued","2011"],["dc.description.abstract","The dynamic water vapour sorption properties of Scots pine (Pinus sylvestris L.) wood samples were studied to investigate the modifying effects of glutaraldehyde. Pine sapwood was treated with solutions of glutaraldehyde and a catalyst (magnesium chloride) to obtain weight per cent gains of 0.5, 8.6, 15.5, and 21.0%, respectively. The sorption behaviour of untreated and treated wood was measured using a Dynamic Vapour Sorption apparatus. The results showed considerable reduction in equilibrium moisture content of wood and the corresponding equilibrium time at each target relative humidity (RH) due to glutaraldehyde treatment. The moisture adsorption and desorption rates of modified and unmodified wood were generally faster in the low RH range (up to approximate 20%) than in the high range. Modification primarily reduced the adsorption and desorption rates over the high RH range of 20-95%. Glutaraldehyde modification resulted in a reduction in sorption hysteresis due to the loss of elasticity of cell walls."],["dc.description.sponsorship","German Academic Exchange Service (DAAD)"],["dc.identifier.doi","10.1007/s00226-010-0311-0"],["dc.identifier.isi","000286195200004"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/7298"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/24042"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.relation.issn","0043-7719"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","Dynamic water vapour sorption properties of wood treated with glutaraldehyde"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]
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