Abstract
Compounds with Iona hydrocarbon chains, such as triolein, oleic acid and steryl esters, reduced tensile strength and friction of paper. All extractives tested increased the contact angle of water on the sheet surface due to the hydrophobic nature of the compounds. The increase varied, however, with the different compounds tested. Small amounts of extractives affected the sheet properties significantly. However, the effect levelled out at amounts above 1-2 mg/g.
Original language | Undefined/Unknown |
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Pages (from-to) | 382–386 |
Number of pages | 5 |
Journal | Nordic Pulp and Paper Research Journal |
Volume | 17 |
Issue number | 4 |
Publication status | Published - 2002 |
MoE publication type | A1 Journal article-refereed |
Keywords
- friction
- hydrophobicity
- lipophilic extractives
- mechanical pulp
- Norway spruce
- strength properties
- wood resin