Effect of Hardboard Process Variables on Fiberbonding

Severely cooked Masonite gun pulp was used in the laboratory to manufacture these four hardboard types: S1S-wet formed, S2S-wet formed, S1S-dry formed (water added after forming), S2S-dry formed. No resins or other additives were used. S2S boards, both wet and dry formed, had superior mechanical properties. However, these same boards had greater linear expansion. S1S-dry formed boards were very similar to S1S-wet formed boards. The conclusion was reached that such highly reactive pulp could be used for the manufacture of high quality, dry formed, binderless hardboard.

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