Advances in Materials Science and Engineering / 2015 / Article / Tab 3

Research Article

Adhesion Strength of Cellulosic Varnish Coated Wood Species as Function of Their Surface Roughness

Table 3

Duncan test results of the samples.

Strength propertiesFactorsLS
mean
Homogenous
groups*

Surface roughnessWood species
 Beech33.053b
 Alder34.498a
 Spruce32.571bc
 Fir31.313c
Grain orientation
 Tangential33.744a
 Radial31.974b
Grit size
 8036.099a
 18029.620b

Adhesion strengthSpecies
 Beech2.277a
 Alder2.012b
 Spruce1.981b
 Fir1.936b
Grain orientation
 Tangential2.105a
 Radial1.999b
Grit size
 802.100a
 1802.004b

Different letters indicate statistically significant difference between the groups.

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