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National Repository of Grey Literature 1 records found  Search took 0.00 seconds. 
Smáčivost povrchu dřeva kapalinami v závislosti na jeho drsnosti
 Kořínek, Zdeněk
This work discusses about the problems of surface properties of wood. Specifi-cally engaged wettability depending on the influence of mechanical processing concrete-ly on the influence of rotational speed of the speed during milling of the oak wood. And the experimental determination of contact angle and the surface free energy according to the methodology of Liptakova and Kudela. From the measurements it was found, that the impact speed of the rotation of the tool causes increase a speed and increase of contact angle and decrease the surface ener-gy and vice versa. The main question remains a factor that causes this effect, because the roughness measurement was no indication the main factor that would influence this is-sue. The values of the surface energy of wood ranges from 59 to 82 mJ/m2 in all the measured speeds.
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