Mai, Carsten

[["dc.bibliographiccitation.firstpage","761"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","European Journal of Wood and Wood Products"],["dc.bibliographiccitation.lastpage","769"],["dc.bibliographiccitation.volume","77"],["dc.contributor.author","Nelis, Philipp A."],["dc.contributor.author","Mai, Carsten"],["dc.date.accessioned","2020-12-10T14:08:21Z"],["dc.date.available","2020-12-10T14:08:21Z"],["dc.date.issued","2019"],["dc.identifier.doi","10.1007/s00107-019-01442-7"],["dc.identifier.eissn","1436-736X"],["dc.identifier.issn","0018-3768"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/70436"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Improved strength properties of three-layered particleboards with different core and surface layers based on kiri wood (Paulownia spp.)"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["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"]]

[["dc.bibliographiccitation.firstpage","387"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","Applied Microbiology and Biotechnology"],["dc.bibliographiccitation.lastpage","394"],["dc.bibliographiccitation.volume","55"],["dc.contributor.author","Huttermann, A."],["dc.contributor.author","Mai, Carsten"],["dc.contributor.author","Kharazipour, Alireza"],["dc.date.accessioned","2018-11-07T09:05:17Z"],["dc.date.available","2018-11-07T09:05:17Z"],["dc.date.issued","2001"],["dc.description.abstract","The cell walls of woody plants are compound ed materials made by in situ polymerization of a polyphenolic matrix (lignin) into a web of fibers (cellulose), a process that is catalysed by polyphenoloxidases (laccases) or peroxidases. The first attempt to transform the basic strategy of this natural process for use in human craftsmanship was the ancient lacquer method. The sap of the lacquer tree (Rhus verniciflua) contains large amounts of a phenol (urushiol), a polysaccharide and the enzyme laccase. This oil-in-water emulsion solidifies in the presence of oxygen. The Chinese began using this phenomenon for the production of highly creative artwork more than 6,000 years ago. It was the first example of an isolated enzyme being used as a catalyst to create an artificial plastic compound. In order to apply this process to the production of products on an industrial scale, an inexpensive phenol must be used, which is transferred by an enzyme to active radicals that react with different components to form a compounded material. At present, the following approaches have been studied: (1) In situ polymerization of lignin for the production of particle boards. Adhesive cure is based on the oxidative polymerization of lignin using phenoloxidases (laccase) as radical donors. This lignin-based bio-adhesive can be applied under conventional pressing conditions. The resulting particle boards meet German performance standards. By this process, 80% of the petrochemical binders in the wood-composite industry can be replaced by materials from renewable resources. (2) Enzymatic copolymerization of lignin and alkenes. In the presence of organic hydroperoxides, laccase catalyses the reaction between lignin and olefins. Derailed studies on the reaction between lignin and acrylate monomers showed that chemo-enzymatic copolymerization offers the possibility to produce defined lignin-acrylate copolymers. The system allows control of the molecular weights of the products in a way that has not been possible with chemical catalysts. This is a novel attempt to enzymatically induce grafting of polymeric side chains onto the lignin backbone, and it enables the utilization of lignin as part of new engineering materials. (3) Enzymatic activation of the middle-lamella lignin of wood fibers for the production of wood composites. The incubation of wood fibers with a phenol oxidizing enzyme results in oxidative activation of the lignin crust on the fiber surface. When such fibers are pressed together, boards are obtained which meet the German standards for medium-density fiber boards (MDF). The fibers are bound together in a way that comes close to that by which wood fibers are bound together in naturally grown wood. This process will, for the first time, yield wood composites that are produced solely from naturally grown products without any addition of resins."],["dc.identifier.isi","000168842900001"],["dc.identifier.pmid","11398916"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/25281"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.relation.issn","1432-0614"],["dc.relation.issn","0175-7598"],["dc.title","Modification of lignin for the production of new compounded materials"],["dc.type","review"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","10452"],["dc.bibliographiccitation.issue","12"],["dc.bibliographiccitation.journal","ACS Sustainable Chemistry & Engineering"],["dc.bibliographiccitation.lastpage","10459"],["dc.bibliographiccitation.volume","7"],["dc.contributor.author","Zhang, Hua"],["dc.contributor.author","Liu, Peiwen"],["dc.contributor.author","Musa, Saleh Md."],["dc.contributor.author","Mai, Carsten"],["dc.contributor.author","Zhang, Kai"],["dc.date.accessioned","2020-05-18T09:57:27Z"],["dc.date.available","2020-05-18T09:57:27Z"],["dc.date.issued","2019"],["dc.description.abstract","Novel adhesives based on natural biopolymers with high performance are still desired for the wood industry, in order to replace conventional fossil-based adhesives on the market. In this study, aqueous solutions of dialdehyde cellulose (DAC) with various degrees of oxidation (DOs) and distinct concentrations were evaluated as robust adhesives for wood bonding, which has not yet been systematically studied. The adhesion performance of DAC adhesives was investigated using tensile shear strength measurements according to European standard EN302-1. Results showed the DO and the concentration of DACs had a predominant impact on the adhesion performance. The optimal formulation of DAC adhesives was found to be the aqueous solutions of DAC with a DO of 1.75 and a concentration of 40 wt %. The corresponding best bonding performance was represented by the bonding strength of about 9.53 MPa for beech wood specimens and 5.75 MPa for spruce wood specimens. Furthermore, wood specimens in shear strength tests mainly revealed a substrate failure mode rather than adhesive or cohesive failure. This indicates that the DAC adhesives possessed a stronger bonding strength than the wood itself. Therefore, our study demonstrates that DAC is a potential bio-based adhesive for wood bonding, especially under indoor conditions."],["dc.identifier.doi","10.1021/acssuschemeng.9b00801"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/65496"],["dc.language.iso","en"],["dc.title","Dialdehyde Cellulose as a Bio-Based Robust Adhesive for Wood Bonding"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","315"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","European Journal of Wood and Wood Products"],["dc.bibliographiccitation.lastpage","324"],["dc.bibliographiccitation.volume","75"],["dc.contributor.author","Gascon-Garrido, Patricia"],["dc.contributor.author","Mainusch, Nils"],["dc.contributor.author","Militz, Holger"],["dc.contributor.author","Vioel, Wolfgang"],["dc.contributor.author","Mai, Carsten"],["dc.date.accessioned","2018-11-07T10:24:35Z"],["dc.date.available","2018-11-07T10:24:35Z"],["dc.date.issued","2017"],["dc.description.abstract","Atmospheric pressure plasma was used to deposit thin layers of copper and aluminium micro-particles on the surface of Scots pine sapwood (Pinus sylvestris L.) boards. Three different loadings of metal particles were established. Additional wood boards were topcoated with a commercial acrylic binder. Boards were exposed to natural weathering for 18 months. Discolouration of copper-treated boards was slowed down, and the treatment at highest loading displayed the best appearance. Aluminium treatment was not sufficient to prevent or reduce discolouration. The application of an acrylic binder as topcoating enhanced the general appearance of metal-treated boards. Evaluation of treated boards did not reveal any reduction in crack formation or water uptake due to the particle deposition. Infrared spectroscopy suggested that copper does not protect lignin from photo-degradation. Nevertheless, copper treatment reduced fungal infestation on wood; at highest copper loading, blue stain did not penetrate through the treated surface."],["dc.description.sponsorship","German Federal Ministry of Education and Research (BMBF) [03X5519A]"],["dc.identifier.doi","10.1007/s00107-016-1121-3"],["dc.identifier.isi","000399708300004"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/42691"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","PUB_WoS_Import"],["dc.publisher","Springer"],["dc.relation.issn","1436-736X"],["dc.relation.issn","0018-3768"],["dc.title","Copper and aluminium deposition by cold-plasma spray on wood surfaces: effects on natural weathering behaviour"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","291"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","Progress in Organic Coatings"],["dc.bibliographiccitation.lastpage","300"],["dc.bibliographiccitation.volume","57"],["dc.contributor.author","Xie, Yanjun"],["dc.contributor.author","Krause, Andreas"],["dc.contributor.author","Militz, Holger"],["dc.contributor.author","Mai, Carsten"],["dc.date.accessioned","2018-11-07T08:55:51Z"],["dc.date.available","2018-11-07T08:55:51Z"],["dc.date.issued","2006"],["dc.description.abstract","This study describes the effects of wood modification with modified 1,3-dimethylol-4,5-dihydroxyethyleneurea (mDMDHEU) on the coating performance of solvent- and water-borne finishes. Although the basic colour of wood was slightly changed due to the modification, modified and unmodified samples did not display any colour differences after coating with translucent stains. Blocking of coated wooden substrates (degree of adhesiveness) was dependant on the type of finish system and, in a few cases, on the wood substrate. For all wood substrates, both treated and untreated, solvent-borne alkyd finish penetrated into the surface layers of the wood cells, while water-borne acrylic finishes spread only on the wood surfaces. The solvent-borne alkyd finish dried much more slowly on wood substrates than did the water-borne acrylics. Modification with mDMDHEU did not affect the drying rates of the finishes tested. The wet adhesion depended on the finish systems tested and on the pre-treatment of the wooden substrate. With regard to the pre-treatment, wet adhesion of one water-borne and the solvent-borne finish systems was significantly enhanced through precedent modification with mDMDHEU. The other two water-borne finish systems showed a higher degree of wet adhesion. This study demonstrates that modification of the wood substrate with mDMDHEU is compatible with both water-borne and solvent-borne finish systems and improves their wet adhesion on the wood surface. (C) 2006 Elsevier B.V. All rights reserved."],["dc.identifier.doi","10.1016/j.porgcoat.2006.06.010"],["dc.identifier.isi","000243251100001"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/23002"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Science Sa"],["dc.relation.issn","0300-9440"],["dc.title","Coating performance of finishes on wood modified with an N-methylol compound"],["dc.type","review"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["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"]]

[["dc.bibliographiccitation.firstpage","658"],["dc.bibliographiccitation.issue","6"],["dc.bibliographiccitation.journal","Forests"],["dc.bibliographiccitation.volume","11"],["dc.contributor.author","Hundhausen, Ulrich"],["dc.contributor.author","Mai, Carsten"],["dc.contributor.author","Slabohm, Maik"],["dc.contributor.author","Gschweidl, Florian"],["dc.contributor.author","Schwarzenbrunner, Ronald"],["dc.date.accessioned","2021-04-14T08:25:06Z"],["dc.date.available","2021-04-14T08:25:06Z"],["dc.date.issued","2020"],["dc.identifier.doi","10.3390/f11060658"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/81523"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-399"],["dc.publisher","MDPI"],["dc.relation.eissn","1999-4907"],["dc.rights","https://creativecommons.org/licenses/by/4.0/"],["dc.title","The Staining Effect of Iron (II) Sulfate on Nine Different Wooden Substrates"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","105529"],["dc.bibliographiccitation.journal","Composites Part A: Applied Science and Manufacturing"],["dc.bibliographiccitation.volume","125"],["dc.contributor.author","Altgen, Daniela"],["dc.contributor.author","Grigsby, Warren"],["dc.contributor.author","Altgen, Michael"],["dc.contributor.author","Rautkari, Lauri"],["dc.contributor.author","Mai, Carsten"],["dc.date.accessioned","2020-12-10T14:23:16Z"],["dc.date.available","2020-12-10T14:23:16Z"],["dc.date.issued","2019"],["dc.identifier.doi","10.1016/j.compositesa.2019.105529"],["dc.identifier.issn","1359-835X"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/71880"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Analyzing the UF resin distribution in particleboards by confocal laser scanning microscopy"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","13"],["dc.bibliographiccitation.journal","International Biodeterioration & Biodegradation"],["dc.bibliographiccitation.lastpage","16"],["dc.bibliographiccitation.volume","82"],["dc.contributor.author","Gascon-Garrido, Patricia"],["dc.contributor.author","Oliver-Villanueva, Jose-Vicente"],["dc.contributor.author","Ibiza-Palacios, M. S."],["dc.contributor.author","Militz, Holger"],["dc.contributor.author","Mai, Carsten"],["dc.contributor.author","Adamopoulos, S."],["dc.date.accessioned","2018-11-07T09:22:15Z"],["dc.date.available","2018-11-07T09:22:15Z"],["dc.date.issued","2013"],["dc.description.abstract","A laboratory no-choice test following the standard EN-117 was conducted to evaluate the efficacy of wood modified with different technologies against subterranean termites of the genus Reticulitermes spp. European beech modified with DMDHEU, acetylated radiata pine, and furfurylated Southern yellow pine were used for termite testing. Before the bioassay, half the number of the specimens (including controls) was subjected to an accelerated aging test according to EN-84. The specimens were exposed for 8 wk to the termites. Additionally, mass losses were measured. The results indicated that the feeding pressure was sufficient according to EN-117 for a valid test. Acetylated wood and DMDHEU-modified wood were classified as durable, showing excellent termite resistance. Furfurylated wood was resistant in the case of non-leached specimens; however, the leaching process led to a classification of non-durable. Thus, the new modification technologies open a real possibility of their use in the Mediterranean region as alternative preventive treatments against subterranean termites. (C) 2013 Elsevier Ltd. All rights reserved."],["dc.identifier.doi","10.1016/j.ibiod.2012.07.024"],["dc.identifier.isi","000319545800003"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/29297"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Sci Ltd"],["dc.relation.issn","0964-8305"],["dc.title","Resistance of wood modified with different technologies against Mediterranean termites (Reticulitermes spp.)"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]