Bollmus, Susanne

[["dc.bibliographiccitation.firstpage","206"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","International Journal of Adhesion and Adhesives"],["dc.bibliographiccitation.lastpage","209"],["dc.bibliographiccitation.volume","29"],["dc.contributor.author","Dieste, Andres"],["dc.contributor.author","Krause, Andreas"],["dc.contributor.author","Bollmus, Susanne"],["dc.contributor.author","Militz, Holger"],["dc.date.accessioned","2018-11-07T08:32:12Z"],["dc.date.available","2018-11-07T08:32:12Z"],["dc.date.issued","2009"],["dc.description.abstract","The shear strength, the cohesive wood failure, and the delamination were determined in plywood constructed with veneers of Fagus sp., Betula sp., and Picea sp. impregnated with 0.8,1.3, and 2.3 M 1,3-dimethylol-4,5-dihydroxyethyleneurea (DMDHEU). The plywood production process consisted of two steps: firstly impregnation and curing of the veneers, and secondly assembly of the panel. The adhesive used was a phenolic resin. The values obtained for shear strength were above the standard limit of rejection (1 N mm(-2)), and therefore the samples met the European requirements of plywood designed for exterior conditions. The phenolic resin improved its adhesive ability when the samples were heated for 72h at 95 degrees C. The highest shear strength for modified wood was 3.97 +/- .45 N mm(-2) at 0.8 M, 3.39 +/- 0.26 N mm(-2) at 1.3 M, and 2.35 +/- 0.23 N mm(-2) at 2.3 M, for Betula sp., Fagus sp., and Piceo sp., respectively. The samples constructed with unmodified veneers presented higher shear strengths and higher cohesive wood failures than the samples constructed with modified veneers. The possible effect of the two-steps production of the plywood is discussed. The delamination test of DMDHEU-modified Betula sp. and Fagus sp. plywood showed no open glue lines, while the samples of Picea sp. treated with the higher concentration of DMDHEU suffered delamination. (C) 2008 Elsevier Ltd. All rights reserved."],["dc.identifier.doi","10.1016/j.ijadhadh.2008.05.001"],["dc.identifier.isi","000262241800012"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/17280"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Sci Ltd"],["dc.relation.issn","0143-7496"],["dc.title","Gluing ability of plywood produced with DMDHEU-modified veneers of Fagus sp., Betula sp., and Picea sp."],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","71"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Drvna industrija"],["dc.bibliographiccitation.lastpage","76"],["dc.bibliographiccitation.volume","70"],["dc.contributor.author","Brischke, Christian"],["dc.contributor.author","Ziegeler, Neele"],["dc.contributor.author","Bollmus, Susanne"],["dc.date.accessioned","2020-12-10T18:47:59Z"],["dc.date.available","2020-12-10T18:47:59Z"],["dc.date.issued","2019"],["dc.identifier.doi","10.5552/drvind.2019.1813"],["dc.identifier.eissn","1847-1153"],["dc.identifier.issn","0012-6772"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/78969"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Abrasion Resistance of Thermally and Chemically Modified Timber"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","22"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","International wood products journal"],["dc.bibliographiccitation.lastpage","27"],["dc.bibliographiccitation.volume","9"],["dc.contributor.author","Behr, Georg"],["dc.contributor.author","Bollmus, Susanne"],["dc.contributor.author","Gellerich, Antje"],["dc.contributor.author","Militz, Holger"],["dc.date.accessioned","2020-12-10T18:15:31Z"],["dc.date.available","2020-12-10T18:15:31Z"],["dc.date.issued","2018"],["dc.identifier.doi","10.1080/20426445.2017.1416738"],["dc.identifier.eissn","2042-6453"],["dc.identifier.issn","2042-6445"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/74872"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","The influence of curing conditions on the properties of European beech ( Fagus sylvatica ) modified with melamine resin assessed by light microscopy and SEM-EDX"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","786"],["dc.bibliographiccitation.issue","9"],["dc.bibliographiccitation.journal","Holzforschung"],["dc.bibliographiccitation.lastpage","797"],["dc.bibliographiccitation.volume","75"],["dc.contributor.author","Emmerich, Lukas"],["dc.contributor.author","Bleckmann, Maja"],["dc.contributor.author","Strohbusch, Sarah"],["dc.contributor.author","Brischke, Christian"],["dc.contributor.author","Bollmus, Susanne"],["dc.contributor.author","Militz, Holger"],["dc.date.accessioned","2021-10-01T09:58:15Z"],["dc.date.available","2021-10-01T09:58:15Z"],["dc.date.issued","2021"],["dc.description.abstract","Abstract Chemical wood modification has been used to modify wood and improve its decay resistance. However, the mode of protective action is still not fully understood. Occasionally, outdoor products made from chemically modified timber (CMT) show internal decay while their outer shell remains intact. Hence, it was hypothesized that wood decay fungi may grow through CMT without losing their capability to degrade non-modified wood. This study aimed at developing a laboratory test set-up to investigate (1) whether decay fungi grow through CMT and (2) retain their ability to degrade non-modified wood. Acetylated and 1,3-dimethylol-4,5-dihydroxyethyleneurea (DMDHEU) treated wood were used in decay tests with modified ‘mantle specimens’ and untreated ‘core dowels’. It became evident that white rot ( Trametes versicolor ), brown rot ( Coniophora puteana ) and soft rot fungi can grow through CMT without losing their ability to degrade untreated wood. Consequently, full volume impregnation of wood with the modifying agent is required to achieve complete protection of wooden products. In decay tests with DMDHEU treated specimens, significant amounts of apparently non-fixated DMDHEU were translocated from modified mantle specimens to untreated wood cores. A diffusion-driven transport of nitrogen and DMDHEU seemed to be responsible for mass translocation during decay testing."],["dc.description.abstract","Abstract Chemical wood modification has been used to modify wood and improve its decay resistance. However, the mode of protective action is still not fully understood. Occasionally, outdoor products made from chemically modified timber (CMT) show internal decay while their outer shell remains intact. Hence, it was hypothesized that wood decay fungi may grow through CMT without losing their capability to degrade non-modified wood. This study aimed at developing a laboratory test set-up to investigate (1) whether decay fungi grow through CMT and (2) retain their ability to degrade non-modified wood. Acetylated and 1,3-dimethylol-4,5-dihydroxyethyleneurea (DMDHEU) treated wood were used in decay tests with modified ‘mantle specimens’ and untreated ‘core dowels’. It became evident that white rot ( Trametes versicolor ), brown rot ( Coniophora puteana ) and soft rot fungi can grow through CMT without losing their ability to degrade untreated wood. Consequently, full volume impregnation of wood with the modifying agent is required to achieve complete protection of wooden products. In decay tests with DMDHEU treated specimens, significant amounts of apparently non-fixated DMDHEU were translocated from modified mantle specimens to untreated wood cores. A diffusion-driven transport of nitrogen and DMDHEU seemed to be responsible for mass translocation during decay testing."],["dc.identifier.doi","10.1515/hf-2020-0252"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/90022"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-469"],["dc.relation.eissn","1437-434X"],["dc.relation.issn","0018-3830"],["dc.title","Growth behavior of wood-destroying fungi in chemically modified wood: wood degradation and translocation of nitrogen compounds"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.journal","European Journal of Wood and Wood Products"],["dc.contributor.author","Brischke, Christian"],["dc.contributor.author","von Boch-Galhau, Nicklas"],["dc.contributor.author","Bollmus, Susanne"],["dc.date.accessioned","2021-09-01T06:42:44Z"],["dc.date.available","2021-09-01T06:42:44Z"],["dc.date.issued","2021"],["dc.description.abstract","Abstract The biological durability of wood is frequently determined in laboratory tests with monocultures of different decay fungi under ideal conditions for fungal growth. To avoid contamination with mould and inhibition of fungal growth, wood specimens need to be sterilized using different methods. To determine the mass loss of wood blocks during incubation, the initial total dry mass is needed but should be determined without oven-drying to avoid the loss of volatile compounds of the tested wood. In this study the effect of different sterilization techniques in combination with different methods of determining the oven-dry weight on mass loss (ML F ) in agar plate wood block tests was investigated. No significant ML F differences were observed between sterilization through gamma radiation, steam, autoclaving, ethanol dipping and oven-drying. Solely, non-sterilized specimens showed reduced ML F , since the test fungus was inhibited by mould growth. Oven-drying of wood species that contain volatile and resistance-affecting compounds such as Scots pine ( Pinus sylvestris ) led to reduced biological durability and should either be avoided or adapted to kiln-drying temperatures usually applied in practice."],["dc.description.abstract","Abstract The biological durability of wood is frequently determined in laboratory tests with monocultures of different decay fungi under ideal conditions for fungal growth. To avoid contamination with mould and inhibition of fungal growth, wood specimens need to be sterilized using different methods. To determine the mass loss of wood blocks during incubation, the initial total dry mass is needed but should be determined without oven-drying to avoid the loss of volatile compounds of the tested wood. In this study the effect of different sterilization techniques in combination with different methods of determining the oven-dry weight on mass loss (ML F ) in agar plate wood block tests was investigated. No significant ML F differences were observed between sterilization through gamma radiation, steam, autoclaving, ethanol dipping and oven-drying. Solely, non-sterilized specimens showed reduced ML F , since the test fungus was inhibited by mould growth. Oven-drying of wood species that contain volatile and resistance-affecting compounds such as Scots pine ( Pinus sylvestris ) led to reduced biological durability and should either be avoided or adapted to kiln-drying temperatures usually applied in practice."],["dc.identifier.doi","10.1007/s00107-021-01745-8"],["dc.identifier.pii","1745"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/89132"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-455"],["dc.relation.eissn","1436-736X"],["dc.relation.issn","0018-3768"],["dc.title","Impact of different sterilization techniques and mass loss measurements on the durability of wood against wood-destroying fungi"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.journal","European Journal of Wood and Wood Products"],["dc.contributor.author","Brischke, Christian"],["dc.contributor.author","Grünwald, Leopold K."],["dc.contributor.author","Bollmus, Susanne"],["dc.date.accessioned","2021-08-12T07:45:39Z"],["dc.date.available","2021-08-12T07:45:39Z"],["dc.date.issued","2021"],["dc.identifier.doi","10.1007/s00107-021-01730-1"],["dc.identifier.pii","1730"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/88517"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-448"],["dc.relation.eissn","1436-736X"],["dc.relation.iserratumof","/handle/2/81871"],["dc.relation.issn","0018-3768"],["dc.title","Correction to: Effect of size and shape of specimens on the mass loss caused by Coniophora puteana in wood durability tests"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","erratum_ja"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","527"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","European Journal of Wood and Wood Products"],["dc.bibliographiccitation.lastpage","530"],["dc.bibliographiccitation.volume","70"],["dc.contributor.author","Alfredsen, Gry"],["dc.contributor.author","Bader, Thomas Karl"],["dc.contributor.author","Dibdiakova, Janka"],["dc.contributor.author","Filbakk, Tore"],["dc.contributor.author","Bollmus, Susanne"],["dc.contributor.author","Hofstetter, Karin"],["dc.date.accessioned","2018-11-07T09:08:59Z"],["dc.date.available","2018-11-07T09:08:59Z"],["dc.date.issued","2012"],["dc.description.abstract","The paper focuses on the use of thermogravimetric analysis (TGA) as a fast method for estimating the change of lignocellulosic materials during fungal degradation in laboratory trials. Traditionally, evaluations of durability tests are based on mass loss. However, to gain more knowledge of the reasons for differences in durability and strength between wooden materials, information on the chemical changes is needed. Pinus sylvestris sapwood was incubated with the brown rot fungus Gloeophyllum trabeum and the white rot fungus Trametes versicolor. The TGA approach used was found to be reproducible between laboratories. The TGA method did not prove useful for wood deteriorated by white rot, but the TGA showed to be a convenient tool for fast estimation of lignocellulosic components both in sound wood and wood decayed by brown rot."],["dc.identifier.doi","10.1007/s00107-011-0566-7"],["dc.identifier.isi","000304653300017"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/26159"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.relation.issn","0018-3768"],["dc.title","Thermogravimetric analysis for wood decay characterisation"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","129"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","European Journal of Wood and Wood Products"],["dc.bibliographiccitation.lastpage","133"],["dc.bibliographiccitation.volume","72"],["dc.contributor.author","Brischke, Christian"],["dc.contributor.author","Welzbacher, Christian R."],["dc.contributor.author","Gellerich, Antje"],["dc.contributor.author","Bollmus, Susanne"],["dc.contributor.author","Humar, Miha"],["dc.contributor.author","Plaschkies, Katharina"],["dc.contributor.author","Scheiding, Wolfram"],["dc.contributor.author","Alfredsen, Gry"],["dc.contributor.author","van Acker, Joris"],["dc.contributor.author","De Windt, Imke"],["dc.date.accessioned","2018-11-07T09:46:52Z"],["dc.date.available","2018-11-07T09:46:52Z"],["dc.date.issued","2014"],["dc.description.abstract","In Europe, the durability of wood against wood-destroying basidiomycetes is tested according to CEN/TS 15083-1 (Durability of wood and wood-based products-determination of the natural durability of solid wood against wood-destroying fungi, test methods-part 1: basidiomycetes, 2005). Existing experience with this standard is quite heterogeneous wherefore six research institutions teamed up and established a new round-robin trial. Fagus sylvatica, Quercus robur, Robinia pseudoacacia as well as sap- and heartwood of Pinus sylvestris, were tested against Coniophora puteana and Trametes versicolor without any pre-treatment, with pre-leaching (EN 84) and with 6 months natural weathering of the specimens. Durability classification revealed differences between test laboratories and depended on pre-treatment and respective statistical measures applied."],["dc.identifier.doi","10.1007/s00107-013-0764-6"],["dc.identifier.isi","329640000017"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/34984"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.relation.issn","1436-736X"],["dc.relation.issn","0018-3768"],["dc.title","Wood natural durability testing under laboratory conditions: results from a round-robin test"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","191"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Holzforschung"],["dc.bibliographiccitation.lastpage","198"],["dc.bibliographiccitation.volume","66"],["dc.contributor.author","Bader, Thomas Karl"],["dc.contributor.author","Hofstetter, Karin"],["dc.contributor.author","Alfredsen, Gry"],["dc.contributor.author","Bollmus, Susanne"],["dc.date.accessioned","2018-11-07T09:15:40Z"],["dc.date.available","2018-11-07T09:15:40Z"],["dc.date.issued","2012"],["dc.description.abstract","Fungal degradation alters the microstructure of wood and its physical and chemical properties are also changed. While these changes are well investigated as a function of mass loss, mass density loss and changes in equilibrium moisture content are not well elucidated. The physical and chemical alterations are crucial when linking microstructural characteristics with macroscopic mechanical properties. In the present article, a consistent set of physical, chemical and mechanical characteristics is presented, which were measured on the same sample before and after fungal degradation. In the first part of this two-part contribution, elucidating microstructure/stiffness-relationships of degraded wood, changes in physical and chemical data are presented, which were collected from specimens of Scots pine (Pinus syluestris) sapwood degraded by Gloeophyllum trabeum (brown rot) and Trametes versicolor (white rot) for up to 28 weeks degradation time. A comparison of mass loss with corresponding mass density loss demonstrated that mass loss entails two effects: firstly, a decrease in sample size (more pronounced for G. trabeum), and secondly, a decrease of mass density within the sample (more pronounced for T. versicolor). These two concurrent effects are interrelated with sample size and shape. Hemicelluloses and cellulose are degraded by G. trabeum, while T. versicolor was additionally able to degrade lignin. In particular because of the breakdown of hemicelluloses and paracrystalline parts of cellulose, the equilibrium moisture content of degraded samples is lower than that in the initial state."],["dc.identifier.doi","10.1515/HF.2011.149"],["dc.identifier.isi","000300740500007"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/27751"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Walter De Gruyter Gmbh"],["dc.relation.issn","0018-3830"],["dc.title","Microstructure and stiffness of Scots pine (Pinus sylvestris L) sapwood degraded by Gloeophyllum trabeum and Trametes versicolor - Part I: Changes in chemical composition, density and equilibrium moisture content"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","911"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","European Journal of Wood and Wood Products"],["dc.bibliographiccitation.lastpage","923"],["dc.bibliographiccitation.volume","76"],["dc.contributor.author","Schlotzhauer, Philipp"],["dc.contributor.author","Wilhelms, Fritz"],["dc.contributor.author","Lux, Christian"],["dc.contributor.author","Bollmus, Susanne"],["dc.date.accessioned","2020-12-10T14:08:19Z"],["dc.date.available","2020-12-10T14:08:19Z"],["dc.date.issued","2018"],["dc.identifier.doi","10.1007/s00107-018-1286-z"],["dc.identifier.eissn","1436-736X"],["dc.identifier.issn","0018-3768"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/70426"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Comparison of three systems for automatic grain angle determination on European hardwood for construction use"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]