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3 Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

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Screw holding performance in WPC composites

100%

Borysiuk P. , Auriga A. , Auriga R.

tom No. 113

43--52

Screw holding performance in WPC composites. In this research effort, the impact of fillers’ composition on wood-plastic composites (WPC) made of poly (lactic acid) PLA was tested. The composites varied in filler type (bark, sawdust) and its content in the boards (40, 50, 60%). The composites were manufactured in a two-stage process consisting of extrusion and flat pressing. Analogically prepared HDPE boards were a reference. Composites were tested for density, density profile, and screw-holding ability. Boards based on PLA performed better screw-holding ability than HDPE. The greatest influence was exerted by the share of matrix/filler. An increase in the content of lignocellulosic particles from 40 to 60% (regardless of the type of matrix: PLA or HDPE) generally reduced screw-holding ability. The type of filler (sawdust, bark) was almost 3 times more important in the case of HDPE boards compared to PLA boards.

The influence of pitch on the holding power of screws in Scots pine wood

75%

Sydor M. , Zmyslony G. , Pinkowski G. , Szymanski W.

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

2015

tom 90

Screw holding performance in WPC composites

63%

Borysiuk P. , Auriga A. , Auriga R.

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

2021

tom 113