Properties of OSB Glued With PMDI-Modified PF Resin

• Autorzy: Radosław Mirski , Aleksandra Banaszak , Jakub Kerber
• Języki publikacji: EN

Abstrakty

EN

The aim of this study was to investigate the applicability of PF-pMDI hybrid resins for the manufacture of OSBs. A three-layer OSBs were manufactured with the adhesive solution (PF-pMDI mixture), pMDI share in the adhesive solution was 0, 10, 25, 50, 75, 90 or 100%. The assessed properties of OSBs were: modulus of rigidity, modulus of elasticity (EN 310), internal bond (EN 319), tensile strength perpendicular to the plane of the board (EN 319), water resistance as per V-100 test (EN-1087-1), swelling after 24 hours (EN 317), as well the authors took into account the relation between the mixture price and resulting bending strength. On the basis of data the fallowing conclusions were drown: the partial substitution of PF resin with pMDI allows for manufacturing OSBs with better mechanical properties and changing their class from OSB/3 to OSB/4, the use of hybrid resin PF/pMDI significantly increases water resistance of the boards determined by the boiling test, addition of pMDI to PF resin does not markedly change physical and mechanical properties of OSBs but allows for reducing the cost of the adhesive mixture.(original abstract)

Słowa kluczowe

EN

Wood industry; Wood market; Technology; Production

PL

Przemysł drzewny; Rynek drzewny; Technologia; Produkcja

• Czasopismo: Intercathedra
• Rocznik: 2015
• Numer: nr 31(4)
• Strony: 59--64

Twórcy

autor

Radosław Mirski

• Poznan University of Life Sciences, Poland

autor

Aleksandra Banaszak

• Poznan University of Life Sciences, Poland

autor

Jakub Kerber

• Poznan University of Life Sciences, Poland

Bibliografia

• Alexandropoulus D., Nakos P. i Mantanis G. [2005]. European approach to particleboard and MDF adhesives. A.C.M. WOOD CHEMICALS PLC.
• Chelak W., Newman W.H. [1991]: MDI high moisture content bonding mechanism, parameters, and benefits using MDI in composite wood products. W: Proc. 25th International Sympozium of Washington State University on Particleboard Composite Materials. Pullman, Washington:205-229.
• Chen S., Fang L., Liu X., Welleood R. [2008 b]: E_ect of mat structure on modulus of elasticity of oriented strandboard. Wood Science and Technology [45]: 197-210.
• Gündüz G., Yapici F.I., Özçifçi A., Kalaycıoğlu H., Eroğlu H. [2011]: The e_ects of andhesive ratio and pressure time on some properties of oriented strand board. BioResources 6 [2]: 2118- 2124.
• Hse CH.-Y. [1980]: Method of bonding particle board and the like using polyisocyanate/phenolic adhesive. US 4,209,433.
• Mayers K.L. [2001]: Impact of strand geometry and orientation on mechanical properties of strand composites, Thesis Ms. Sc. In Civil Engineering, Washington State University.
• Miller T., Creel L.D., Detlefsen W.D. [2002]: Hybrid phenol-formaldehyde and polymeric isocyanate based adhesive and methods of synthesis and use, US 6,478,998.
• Mirski R., Dziurka D.[2011 b]: The utilization of chips from comminuted wood waste as a substitute for flakes in the oriented strand board core. Forest Product Journal 61[6]: 473-478.
• Mirski R., Dziurka D., Łęcka J. [2008]: Properties of phenol-formaldehyde resin modified with organic acid esters. Journal of Applied Polymer Science 107 [5]: 3358-3366.
• Sellers Jr.T., Lora J.H., Okuma M. [1994 a]: Organosolv-lignin-modified phenolics as strandboard binder I. Organosolv lignin and modified phenolic resin. The Japan Wood Research Society 40 [10]: 1078-1084.
• Smith G.D. [2005]: The lap-shear strength of bonds between Oriented Strand Board (OSB) like strands coated with pMDI resin. Holz als Roh- und Werkstoff [63]: 311-312.
• EN 1087-1 [1999] Particleboards. Determination of moisture resistance. Part 1: Boil test.
• EN 300 [2006]: Oriented Strand Boards (OSB) - Definitions, classification and specifications.
• EN 310 [1993]: Wood-Based Panels. Determination of Modulus of Elasticity in Bending and of Bending Strength.
• EN 317 [1993]: Particleboards and Fibreboards. Determination of Swelling in Thickness after Immersion in Water.
• EN 319 [1993]: Particleboards and Fibreboards. Determination of Tensile Strength Perpendicular to the Plane of the Board.