The influence of high defibration temperature on the properties of medium-density fiberboard (MDF) made from laccase-treated softwood fibers

Autor: Pia Qvintus-Leino, Petri Widsten, Jaakko E. Laine, Simo Tuominen

Publikováno v: Widsten, P, Tuominen, S, Qvintus-Leino, P & Laine, J E 2004, ' The influence of high defibration temperature on the properties of medium-density fiberboard (MDF) made from laccase-treated softwood fibers ', Wood Science and Technology, vol. 38, no. 7, pp. 521-528 . https://doi.org/10.1007/s00226-003-0206-4

This study was carried out to elucidate the effect of defibration temperature in the range 171–202°C on the properties of 12-mm thick MDF boards made without synthetic resins from softwood fibers activated by laccase treatment for the generation o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::081086fd0bbb548d4ab09f25fcf26fd5
https://doi.org/10.1007/s00226-003-0206-4

Effect of high defibration temperature on the properties of medium-density fiberboard (MDF) made from laccase-treated hardwood fibers

Autor: Pia Qvintus-Leino, Petri Widsten, Jaakko E. Laine, Simo Tuominen

Publikováno v: Journal of Adhesion Science and Technology. 17:67-78

High-temperature defibration of hardwood improves the reactivity of hardwood fibers during laccase-catalyzed oxidation. This is due to the progressive breakdown of the lignin polymer with increasing refining temperature, which makes it a more amenabl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ad9d270275577fad39bac9135da62c7c
https://doi.org/10.1163/15685610360472448

Technologies, innovations and new business opportunities in printed intelligence

Autor: Harri Kopola, Eero Hurme, Jani-Mikael Kuusisto, Maria Smolander, Markus Tuomikoski, Terho Kololuoma, Jukka Hast, Markku Känsäkoski, Ari Alastalo, Antti Kemppainen, Caj Södergård, Pia Qvintus-Leino, Arto Maaninen

Publikováno v: Kopola, H, Hurme, E, Kuusisto, J-M, Smolander, M, Tuomikoski, M, Kololuoma, T, Hast, J, Känsäkoski, M, Alastalo, A, Kemppainen, A, Södergård, C, Qvintus-Leino, P & Maaninen, A 2007, Technologies, innovations and new business opportunities in printed intelligence . in Proceedings on CD . 3rd Global Plastic Electronics Conference and Showcase, Frankfurt, Germany, 29/10/07 . < http://www.vtt.fi/proj/cpi/files/Kopola_plenary__PlasticElectronics.pdf >
VTT Technical Research Centre of Finland-PURE

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::3b251a252128e5b6a35a08489650f484
https://cris.vtt.fi/en/publications/bb22164f-e70f-48ec-b93a-58361f91fd79

Fingerprint detection on counterfeit US banknotes

Autor: Kimmo Himberg, Myriam Azoury, Terhi Saari, Drorit Cohen, Joseph Almog, Pia Qvintus-Leino

Publikováno v: Azouri, M, Cohen, D, Himberg, K, Qvintus-Leino, P, Saari, T & Almog, J 2004, ' Fingerprint detection on counterfeit US banknotes : The importance of preliminary paper examination ', Journal of Forensic Sciences, vol. 49, no. 5 . https://doi.org/10.1520/JFS2003424

Two seizures of counterfeit 100 US$ bills related to the same indicative number were submitted for processing of latent fingerprints. On one group of notes, identifiable fingerprints could be detected by the routine application of amino acid reagents

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9ee525428350ed1749cd4b49c627e10a
https://doi.org/10.1520/JFS2003424

Effect of high-temperature fiberization on the chemical structure of softwood

Autor: Pia Qvintus-Leino, Simo Tuominen, Jaakko E. Laine, Petri Widsten

Publikováno v: Widsten, P, Laine, J E, Qvintus-Leino, P & Tuominen, S 2001, ' Effect of high-temperature fiberization on the chemical structure of softwood ', Journal of Wood Chemistry and Technology, vol. 21, no. 3, pp. 227-245 . https://doi.org/10.1081/WCT-100105374

Softwoods fiberized at high temperatures (above 170°C) were subjected to bulk and surface chemical analyses. It was found that the frequency of lignin β-O-4 linkages declined while that of phenolic hydroxyl groups increased with an increase in fibe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3f805fd2257d32dd6d75fe47ba2b95a7
https://cris.vtt.fi/en/publications/0cafcd09-0f03-43ed-a9c4-130d1ff1db06