caa a22 4500 37886775X CHVBK 20180305123402.0 cr unu---uuuuu 161128e20030820xx s 000 0 eng 10.1515/HF.2003.073 doi (NATIONALLICENCE)gruyter-10.1515/HF.2003.073 Alkaline Chemi-Mechanical Pulp from Poplar. Relationship between Chemical State, Swelling and Papermaking Properties [Elektronische Daten] [M. Zanuttini, V. Marzocchi] In order to analyse the fundamentals of alkaline chemi-mechanical pulping of hardwoods, the chemical state of the wood was related to both the swelling level of fibres and the papermaking properties of pulp. Wafers of poplar wood were alkali treated following a factorial experimental design for two variables: temperature and alkali concentration. Treated wafers were hot defibrated in a 300-mm disk mill at 15% consistency, and then refined in PFI mill at 20% consistency. Results show how fibre swelling gradually increases as alkaline action is increased. The significant improvement in tensile and tear strength of the pulp can, in great part, be ascribed to the development of fibre bonding capacity. A limited effect of ion content on cell wall swelling was found. Swelling correlates well with deacetylation level, and is a major factor in determining the tensile strength and scattering ability of the pulp. Copyright © 2003 by Walter de Gruyter GmbH & Co. KG Timber & wood processing nationallicence Biotechnology nationallicence Materials science nationallicence Zanuttini M. aut Marzocchi V. aut Holzforschung Walter de Gruyter 57/5(2003-08-20), 489-495 0018-3830 57:5<489 2003 57 hfsg https://doi.org/10.1515/HF.2003.073 text/html Onlinezugriff via DOI 1 research article jats NATIONALLICENCE 856 40 https://doi.org/10.1515/HF.2003.073 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Zanuttini M. aut NATIONALLICENCE 700 1- Marzocchi V. aut NATIONALLICENCE 773 0- Holzforschung Walter de Gruyter 57/5(2003-08-20), 489-495 0018-3830 57:5<489 2003 57 hfsg CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-gruyter