THE INFLUENCE OF CATIONIZED BIRCH XYLAN ON WET AND DRY STRENGTH OF FINE PAPER

Autor: Janne Kataja-aho,, Sanna Haavisto,, Jaakko Asikainen,, Sari Hyvärinen,, Sauli Vuoti

Publikováno v: BioResources, Vol 7, Iss 2, Pp 1713-1728 (2012)

Cationized birch xylan was prepared and its use as a papermaking chemical was evaluated. The focus was on studying the effects of cationized birch xylan on the wet and dry strength of fine paper. The results of the laboratory experiments show that th

Externí odkaz: https://doaj.org/article/bce14db0eee34dc29247c4fed5c13d8f

PROPERTIES AND FLOCCULATION EFFICIENCY OF CATIONIZED BIOPOLYMERS AND THEIR APPLICABILITY IN PAPERMAKING AND IN CONDITIONING OF PULP AND PAPER SLUDGE

Autor: Lauri Kuutti, Sanna Haavisto, Sari Hyvärinen, Hannu Mikkonen, Riikka Koski, Soili Peltonen, Tapani Suortti, Hanna Kyllönen

Publikováno v: BioResources, Vol 6, Iss 3, Pp 2836-2850 (2011)
Kuutti, L, Haavisto, S, Hyvärinen, S, Mikkonen, H, Koski, R, Peltonen, S, Suortti, T & Kyllönen, H 2011, ' Properties and flocculation efficiency of cationized biopolymers and their applicability in papermaking and in conditioning of pulp and paper sludge ', BioResources, vol. 6, no. 3, pp. 2836-2850 . < https://bioresources.cnr.ncsu.edu//BioRes_06/BioRes_06_3_2836_Kuutti_HMKPK_Prop_Flocculat_Cat_Biopoly_Papermak_Cond_Sludge_1181.pdf >
VTT Technical Research Centre of Finland-PURE

Safe biodegradable “green” alternatives with minimal environmental and health risks have received widespread research interest. Thirty different kinds of bio-based flocculants (modified starches, modified celluloses, native chitosan, and lignin-b

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::28cf3319f74ff16f1a3ce2f07c25ca80
http://www.ncsu.edu/bioresources/BioRes_06/BioRes_06_3_2836_Kuutti_HMKPK_Prop_Flocculat_Cat_Biopoly_Papermak_Cond_Sludge_1181.pdf

THE INFLUENCE OF CATIONIZED BIRCH XYLAN ON WET AND DRY STRENGTH OF FINE PAPER

Autor: Sanna Haavisto, Sauli Vuoti, Sari Hyvärinen, Janne Kataja-aho, Jaakko Asikainen

Publikováno v: Kataja-aho, J, Haavisto, S, Asikainen, J, Hyvärinen, S & Vuoti, S 2012, ' The influence of cationized birch xylan on wet and dry strength of fine paper ', BioResources, vol. 7, no. 2, pp. 1713-1728 . < http://www.ncsu.edu/bioresources/BioRes_07/BioRes_07_2_1713_Katajaaho_HAHV_Infl_Cat_Xylan_Wet_Dry_Strength_Paper_2389.pdf >
BioResources, Vol 7, Iss 2, Pp 1713-1728 (2012)

Cationized birch xylan was prepared and its use as a papermaking chemical was evaluated. The focus was on studying the effects of cationized birch xylan on the wet and dry strength of fine paper. The results of the laboratory experiments show that th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8e276df0c52ff371ee3e18ba36105bea
https://doi.org/10.15376/biores.7.2.1713-1728

Optimization of Lignofiber (LGF) organosolv process for fractionation of lignocellulosics

Autor: Heli Kangas, Terhi Hakala, Sari Hyvärinen, Marjo Määttänen

Publikováno v: Kangas, H, Hakala, T, Hyvärinen, S & Määttänen, M 2012, Optimization of Lignofiber (LGF) organosolv process for fractionation of lignocellulosics . in V Mäkelä (ed.), 12th European Workshop on Lignocellulosics and Pulp : EWLP 2012 : August 27-30, 2012, Espoo, Finland : Proceedings . University of Helsinki, Helsinki, pp. 312-315, 12th European workshop on lignocellulosics and pulp, EWLP 2012, Espoo, Finland, 27/08/12 .
VTT Technical Research Centre of Finland-PURE

The aim of this work was to optimize the LGF organosolv process using acetic acid as the solvent, by attempting to enhance the xylan recovery and to increase the dissolution of lignin during the process. In addition, the goal was to make the process

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::85e572bd441315b7f98995478c6122e7
https://cris.vtt.fi/en/publications/541d3016-64b7-424b-ae23-181b79644418

Determination of the degree of substitution of acetylated starch by hydrolysis, 1H NMR and TGA/IR

Autor: Pasi Soininen, Arto Urtti, Reino Laatikainen, Soili Peltonen, Sari Hyvärinen, Tomas Asplund, Matti Elomaa

Publikováno v: Elomaa, M, Asplund, T, Soininen, P, Laatikainen, R, Peltonen, S, Hyvärinen, S & Urtti, A 2004, ' Determination of the degree of substitution of acetylated starch by hydrolysis, 1 H NMR and TGA/IR ', Carbohydrate Polymers, vol. 57, no. 3, pp. 261-267 . https://doi.org/10.1016/j.carbpol.2004.05.003

The suitability of TGA/IR method for the analysis of the degree of substitution (DS) of acetylated starch (SA) was assessed. Ten standard samples were analysed for their DS by hydrolysis method and, those of the standards which could be properly diss

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::05df85d07a341ff106e0812762ebca41
https://cris.vtt.fi/en/publications/0faac9f3-98ac-4926-81f6-db5f9dd77802