Possibility of the production of three-layer MDF

• Autorzy: Nicewicz D. , Klimczewski M.
• Języki publikacji: EN

Abstrakty

EN

The paper proposes the production of a three-layer MDF instead one layer boards. Three-layer panels have been made from fibers of varying dimensions for the outer and the core layers. The outer layers were produced from standard fibers, while the core layer from longer and thicker fibers (of lower pulp freeness). In order to determine the optimal technological parameters in the production of three layer boards, the experimental plan was used in the study. Three factors at two levels were tested. Analysis of variance (ANOVA) was used to analyze the significance of factors. Regression coefficients and 3D contour plots were used to quantify the relationship between panel properties and test factors. Properties of obtained boards were tested according to the standard EN 622-5/2010. All selected factors within the examined range of settings had influence on MDF properties. It has been found that the best properties of the plates were 25x50x25 involving layers, the content of the glue in the outer layers of 10% and the core layer of 12% at the time of overheating of the mats 90s.

Słowa kluczowe

EN

three-layers MDF; properties of boards

• Wydawca: Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
• Czasopismo: Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology
• Rocznik: 2014
• Tom: No. 88
• Strony: 162--169
• Opis fizyczny: Bibliogr. 7 poz.

Twórcy

autor

Nicewicz D.

• Faculty of Wood Technology, Warsaw University of Life Sciences – SGGW

autor

Klimczewski M.

• Faculty of Wood Technology, Warsaw University of Life Sciences – SGGW

Bibliografia

• 1. Benker B., Erbreich M., Plinke B., Wollmann A. 2003: Characterisation of wood fibres for MDF – off-line and on-line measurements for production monitoring. 7th European Panel Products Symposium, 8-10th October, Llandudno, UK.
• 2. Feddersen J. 2003: Prozessenergieverbrauch in der Holzwerkstoffindustri. Diplomarbeit im Studiengang Holzwirtschaft der Universität Hamburg. Ordinariat für Holztechnologie – Holzphysik. 145.
• 3. Johansson O., Hogan D., Blankenship D., Snow E., More W., Qualis R., Pugh K.,169.
• 4. Wanderer M. 2001: Improved process optimization through adjustable refiner plates. International Mechanical Pulping Conference Helsinki. Finland (Sonderdruck von J&L Fiber Services).
• 5. Wold D. 2010: The EVO 56 Defibrator system – the obvious choice at Medite; Metso Results Pulp & Paper 3/2010: 26-27 (www.metso.com/pulpandpaper).
• 6. Xing Ch., Deng J., Zhang S. Y , Riedl B, Cloutier A. 2006: Properties of MDF fromblack spruce tops as affected by thermomechanical refining conditions. Holz Roh Werkst 64: 507–512.
• 7. Xing Ch, Deng J., Zhang S. Y. 2007: Effect of thermo-mechanical refining on properties of MDF made from black spruce bark. Wood Science Technology 41:329–338.