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Wood chemical composition as related to properties of handsheets made from loblolly pine refiner groundwood

โœ Scribed by Charles W. McMillin


Publisher
Springer
Year
1969
Tongue
English
Weight
416 KB
Volume
3
Category
Article
ISSN
0043-7719

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โœฆ Synopsis


Burst and tear strengths of handsheets made from 48 pulps disk-refined from chips of varying chemical composition decreased with increasing extractive content after the independent effects of fiber morphology were specified. This result was attributed to lessened bond strength caused by reduced surface tension forces and blocking of reactive sites on the fiber surfaces.

Zusammenfassung

Berstzahl und ReiBfestigkeit der BlOtter -con 48 verschiedenen Zellstoffen aus scheibengemahlenen Spi~nen mit unterschiedlichen ehemischen Bestandteilen verrfi~gerten sieh mit ansteigendem Extraktstoffgehalt; die davon unabh~ngigen Einflfisse des Faseraufbaues sind dabei berficksichtigt. Diese Tatsache wird der verminderten Bindungskraft zugeschrieben, verursacht durch die herabgesetzte Oberfl~chenspannung und die Bloekierung yon Bindungsstellen an den Faseroberfl~ehen.


๐Ÿ“œ SIMILAR VOLUMES


Quality of refiner groundwood pulp as re
โœ Charles W. McMillin ๐Ÿ“‚ Article ๐Ÿ“… 1969 ๐Ÿ› Springer ๐ŸŒ English โš– 824 KB

Pulp quality, in terms of a fiber shape factor S and a fiber length factor L, was determined for 96 pulps disk-refined from chips of varying characteristics. S was evaluated in terms of the Canadian Standard Freeness of the 48/100 fiber length fraction and is a parameter inversely proportional to sp