Reducing friction between metal and thermo-mechanical pulp using alkyl ketene dimers and magnesium stearate
Journal article, 2024
The friction between natural fibers and metal affects tool life, wear and tear and surface defects of extrudates. The ability of alkyl ketene dimer (AKD) and magnesium stearate (MgSt) to reduce coefficient of friction (COF) between thermomechanical pulp (TMP) and metal were determined at temperatures of 30, 100, and 180 °C and additive concentrations from 0.5 to 5 wt%. The AKD and MgSt were added to TMP sheets through spraying, followed by drying. ATR-FTIR and IR microscopy confirmed the presence of AKD and MgSt on the TMP. AKD addition at 2 wt%, consistently reduced the COF of TMP and metal, whereas MgSt reduced COF at 100 and 180 °C, only. No further reduction in COF was observed at 5 wt% of AKD or MgSt.
Roughness
Profilometer
3BOP
Three balls on plate
Author
Seyedehsan Hosseini
Chalmers, Chemistry and Chemical Engineering, Chemistry and Biochemistry
Roujin Ghaffari
Wallenberg Wood Science Center (WWSC)
Chalmers, Chemistry and Chemical Engineering, Applied Chemistry
Anette Larsson
Wallenberg Wood Science Center (WWSC)
Chalmers, Chemistry and Chemical Engineering, Applied Chemistry
Gunnar Westman
Chalmers, Chemistry and Chemical Engineering, Chemistry and Biochemistry
Anna Ström
Chalmers, Chemistry and Chemical Engineering, Applied Chemistry
Tribology International
0301-679X (ISSN)
Vol. 192 109280Subject Categories
Chemical Process Engineering
DOI
10.1016/j.triboint.2024.109280