Determination of the distribution of wood resin in handsheets by confocal laser scanning microscopy

A4 Konferenspublikationer


Interna författare/redaktörer


Publikationens författare: Stefan Willför, Anna Sundberg, Christer Eckerman, Bjarne Holmbom
Förläggare: CPPA
Förlagsort: Montreal
Publiceringsår: 1997
Förläggare: Canadian Pulp and Paper Association
Moderpublikationens namn: ISWPC : 9th International Symposium on Wood and Pulping Chemistry, June 9-12, 1997
Artikelns första sida, sidnummer: 1191
Artikelns sista sida, sidnummer: 1193
Antal sidor: 3
ISBN: 1-896742-15-7


Abstrakt

A method for determining the resin distribution in handsheets was developed. The method involves staining of resin dissolved in acetone with a fluorescent dye and injecting the resin into water, followed by removal of the acetone from the resin dispersion by dialysis. After sheet preparation, using a cationic fixing agent to aggregate the resin, the sheets are examined with confocal laser scanning microscopy. In this model system the resin did not become uniformly distributed on the fibres in the sheets. Resin aggregates from 1 mu m up to about 10 mu m could be observed. These aggregates are of the size that can be expected with the fixing agent used.


Nyckelord

confocal laser scanning microscopy, handsheets, kraft pulp, lipophilic extractives, resin distribution, wood resin

Senast uppdaterad 2019-09-12 vid 03:32