Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Jonas Hafrén"'
Publikováno v:
Wood Science and Technology. 48:737-753
High-yield pulping of wood chips using low-consistency (LC) refining in combination with primary-stage high-consistency (HC) refining has previously been shown to produce paper with quality parameters (tensile strength and light-scattering coefficien
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::806a264f1ec5ea6dd27fbdbbc541468c
https://doi.org/10.1007/s00226-014-0636-1
https://doi.org/10.1007/s00226-014-0636-1
Publikováno v:
hfsg. 66:907-915
The structure of lignin in the compound middle lamella (CML) of softwood tracheids differs from that in the secondary wall (SW) in regard to the content of condensed structures (5-5′-biphenyl, dibenzodioxocin and 4-O-5′-diphenyl ether). In an ear
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::146138b783ffde56beab459c46f2bd61
https://doi.org/10.1515/hf-2012-0021
https://doi.org/10.1515/hf-2012-0021
Publikováno v:
Holzforschung. 66:817-824
The effects of pressurised compressive chip pre-treatment and low dosage sulphite pre-treatment were evaluated for production of thermomechanical pulp in mill scale trials using Norway spruce (Picea abies) at the Braviken paper mill (Holmen Paper AB,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2bb3c8d2bcfaf3075c33a3489a759678
https://doi.org/10.1515/hf-2011-0184
https://doi.org/10.1515/hf-2011-0184
Publikováno v:
Nordic Pulp & Paper Research Journal. 26:372-379
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9530f8beeb3c28c6f025049cf656211b
https://doi.org/10.3183/npprj-2011-26-04-p372-379
https://doi.org/10.3183/npprj-2011-26-04-p372-379
Publikováno v:
Macromolecular Rapid Communications. 31:740-744
A simple and direct method for derivatization of solid polysaccharides is presented. The novel methodology is based on the combination of organic acid-catalyzed esterification or etherification and photochemical thiol-ene click derivatization of a he
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::262cf4afe8ddef8b50b333f5f8eebe4c
https://doi.org/10.1002/marc.200900764
https://doi.org/10.1002/marc.200900764
Publikováno v:
Journal of Wood Science. 55:236-239
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3f18c0aa00c48d6eb8b552d71a8dc5f1
https://doi.org/10.1007/s10086-009-1028-2
https://doi.org/10.1007/s10086-009-1028-2
Autor:
Jonas Hafrén, Ulrika Råberg
Publikováno v:
International Biodeterioration & Biodegradation. 62:210-213
The biodegradation of plastics and wood with different susceptibility to fungal attack have in this study been compared in order to show the biodegradability in relation to the properties of plastic and solid wood. Wood blocks of Scots pine and Engli
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ea5109d3e87535a141ba51e00a046e67
https://doi.org/10.1016/j.ibiod.2007.12.006
https://doi.org/10.1016/j.ibiod.2007.12.006
Publikováno v:
Journal of Wood Science. 54:134-142
Due to the increasing demand for Norway spruce as prime raw material for high-yield pulping, recent interest has focused on Scots pine as an alternative. However, the intrinsic properties of Scots pine, particularly the high amounts of extractives an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::81bd9478a3546248f9bf32b2253360b1
https://doi.org/10.1007/s10086-007-0917-5
https://doi.org/10.1007/s10086-007-0917-5
Autor:
Jonas Hafrén, Armando Córdova
Publikováno v:
Scopus-Elsevier
Direct Bronsted acid-catalyzed derivatization of cellulose with poly(L-lactic acid) and D-mandelic acid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ca0862aca857d43879e54013f50f45a
https://doi.org/10.3183/npprj-2007-22-02-p184-187
https://doi.org/10.3183/npprj-2007-22-02-p184-187
Publikováno v:
Applied Surface Science. 253:5355-5362
In this study, the effects of UV-light irradiation and water spray on colour and surface chemistry of scots pine sapwood samples were investigated. The specimens were treated with chromated copper arsenate (CCA), a metal-free propiconazol-based formu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aaf9811cb24eb9f754ed67a920f155d2
https://doi.org/10.1016/j.apsusc.2006.12.005
https://doi.org/10.1016/j.apsusc.2006.12.005