DOI: 10.5281/zenodo.18350472
title: Properties of particleboard composed of recycled wood particles bonded by suberinic acids

description: The data set represents results of experimental particleboards produced of sawdust bonded with natural suberinic acids (SA) mixture obtained from birch outer bark. The data set is generated from results of tested particleboard properties summarized in 5 Excel files. Each file consists of multiple worksheets representing experimental data of each particleboard sample and a 'Description' worksheet which provides a concise description of the methods used to obtain the data and the abbreviations used throughout the file. In addition, a descriptive PNG file is included representing a scheme of particleboard cutting to individual specimens for each property testing.

Ten particleboards samples (No 9. 10, 11, 12, 13, 21, 22, 31, 32, 33) were produced from recycled particleboard particles supplied by the local particleboard manufacturer Kronospan Latvia, varying density and pressing parameters defined in the table below. The furnish of recycled particles consisted of fine (< 2 mm) and coarse (55% > 2 mm) fractions formed in face and core layers, respectively. 15–21 wt.% (dry basis) of wet SA binder was added to the supplied particles. The blended furnish was then dried to a moisture content < 2%, and hot-pressed at varying the temperatures (200–220 ℃) and pressing times (0.9–1.5 min/mm) to obtain the particleboards with final dimensions of 9 mm × 310 mm × 310 mm, and a target density ranging from 650 to 750 kg/m3. Three particleboard samples (No 11, 12, 13) were made with final dimensions of 7 mm × 160 mm × 190 mm.








Sample

No



SA

%



Temperature ℃



Time

min



Pres.rate min/mm



Density kg/m3





9



15



200



9.0



1.0



654





10



15



200



9.0



0.9



730





11



15



200



6.5



0.9



655





12



15



220



6.5



0.9



661





13



15



220



6.5



0.9



751





21



21



220



13.5



1.5



617





22



21



220



13.5



1.5



719





31



15



200



13.5



1.5



665





32



15



220



10.0



1.1



644





33



15



220



13.5



1.5



653






 The pressing cycle of particleboard production consisted of four stages: 1) pressing at maximum pressure (3 MPa) to reach the target thickness for 3.5 min; 2) releasing the pressure at 0.2 MPa for 30 s; 3) pressing at reduced pressure (< 2 MPa) to stabilize the thickness for 3 min; 4) pressing under minimum pressure (0.5 MPa) until the end of the set pressing time. The obtained particleboards were characterized according to the relevant standards by determining density (EN 323), modulus of elasticity (MOE) and modulus of rupture (MOR) in a three-point bending test (EN 310), tensile strength perpendicular to the board surface (IB) (EN 319), thickness swelling and water absorption (TS/WA) after 24 h immersion in water (EN 317), and face withdrawal of screw resistance (WSR) (EN 320). Mechanical tests (MOE, MOR, IB, FWS) were performed using a ZWICK/Roell Z010 (Ulm, Germany) universal machine.

The data set contains the following files:

1.     Specimen cutting scheme.png

2.     Density.xlsx

3.     Bending properties.xlsx

4.     Swelling in water.xlsx

5.     Internal bonding.xlsx

6.     WSR.xlsx