Title page for ETD etd-07212010-020015
|Type of Document
||Ferguson, Paul Charles
||Utilization potential for pulp and paper of southern pine harvested from beetle infested forests.
||Master of Science
||Forestry and Forest Products
|Heikkenen, Herman John
|Oderwald, Richard G.
|Date of Defense
From the results of this study, the following conclusions may be
(1) Pulp yield is not affected significantly by allowing the dead trees
to remain on the stump for extended periods of time (three years).
(2) Canadian Standard Freeness increases significantly at high beating
times as wood deteriorates (up to 24 months) until a large amount
of fines exist in the pulp because of the refining of extremely
decayed fibers (after 24 months). These fines effectively reduce
the freeness of the pulp by clogging the apparatus screen.
(3) Tensile strength of paper is reduced significantly (after an initial
increase) as the wood deteriorates on the stump beyond 24 months.
(4) Tear strength of paper is reduced significantly after the initial
attack of wood destroying fungi which follows closely the death
and drying out of the tree.
(5) A thorough summary relating the gross external characteristics of
southern pines infested by bark beetles to various periods of time
since death would be a valuable supplement to this investigation
for the practicing forester.
(6) Whenever the tear resistance of paper made from the kraft process
is a critical determinate for the utility of that paper, the
usefulness of deteriorated southern pine should be carefully
evaluated by the pulpmill operator.
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