The effect of veneer impregnation with a mixture of potassium carbonate and urea on the properties of manufactured plywood

• Autorzy: Kawalerczyk Jakub , Dziurka Dorota , Mirski Radosław , Grześkowiak Wojciech

Identyfikatory

DOI

10.12841/wood.1644-3985.281.12

• Języki publikacji: EN

Abstrakty

EN

It was determined how the impregnation of birch veneers with a mixture of potassium carbonate and urea affected the fire protection properties, shear strength, modulus of elasticity and modulus of rigidity of plywood glued with PF and UF resin. Veneers were impregnated by soaking in aqueous fire retardant solutions with concentrations of 20% and 30%. Measurements of mass loss, burned area and time of ignition showed the fire protection provided to be very effective. Impregnation did not significantly affect the modulus of elasticity or modulus of rigidity of the plywood. Impregnation caused a decrease in bonding quality, especially in the case of plywood with UF resin soaked in water. For the samples with PF resin, both immersed and boiled in water, impregnation had less impact on the shear strength: its values exceeded 1 N/mm2, thus meeting the requirements of EN 314-2.

Słowa kluczowe

EN

plywood; fire retardant; impregnation; flammability; veneer; mechanical properties

• Wydawca: Sieć Badawcza Łukasiewicz - Poznański Instytut Technologiczny
• Czasopismo: Drewno : prace naukowe, doniesienia, komunikaty
• Rocznik: 2019
• Tom: vol. 62, nr 203
• Strony: 197--116
• Opis fizyczny: Bibliogr. 30 poz., tab.

Twórcy

autor

Kawalerczyk Jakub

• Poznań University of Life Sciences, Poznań, Poland

autor

Dziurka Dorota

• Poznań University of Life Sciences, Poznań, Poland

autor

Mirski Radosław

• Poznań University of Life Sciences, Poznań, Poland

autor

Grześkowiak Wojciech

• Poznań University of Life Sciences, Poznań, Poland

Bibliografia

• Borysiuk P., Krajewski K., Boruszewski P., Jenczyk-Tołłoczko I., Jabłoński M. [2011]: Bonding quality of veneers protected with fire-proofing preservation based on diammonium hydrogen phosphate, citric acid and sodium benzoate. Annals of Warsaw University of Life Sciences – SGGW, Forestry and Wood Technology 73: 158-161
• Bekhta P., Bryn O., Sedliačik J., Novák I. [2016]: Effect of different fire retardants on birch plywood properties. Acta Facultatis Xylologiae Zvolen 58 [1]: 59-66
• Bueno F., Navarro A.B., Banon M.V., De Morentin M., Mortalla Garcia J. [2014]: Treatment of natural wood veneers with nano-oxides to improve their fire behavior. 2nd International Conference on Structural Nano Composites: 64
• Chang H., Kuo Z.H., Tsai K.C., Chen T.L. [2011]: Analysis on properties of water-based fire-retardant nano-coatings. Advanced Materials Research, 8: 311-313
• Cheng R.-X., Wang Q.-W. [2011]: The influence of FRW-1 fire retardant treatment on the bonding of plywood. Journal of Adhesion Science and Technology 25 [14]: 1715-1724
• Chou C.-S., Lin S.-H., Wang C.-I., Liu K.-H. [2010]: A hybrid intumescent fire retardant coating from cake and eggshell-type IFRC. Powder Technology 198 [1]: 149-156
• Craft S.T., Isgor B., Hadjisophoceleous G., Mehaffey J.R. [2008]: Predicting the thermal response of gypsum board subjected to a constant heat flux. Fire and Materials 32 [6]: 335-355
• Grexa O., Horváthová E., Bešinova O., Lehocký P. [1999]: Flame retardant treated plywood. Polymer Degradation and Stability 64 [3]: 529-533
• Grześkowiak W., Cofta G., Janiak G. [2016]: Influence of impregnation time on degree of wood-based materials fire protection. Annals of Warsaw University of Life Sciences – SGGW, Forestry and Wood Technology 94: 278-282
• Kim J.-M., Cung W.-Y., Lee P.-W. [1984]: A comparative study on the mechanical properties of plywood treated with several fire retardant chemicals (I) – Effect of soaking time on the static bending strength of treated plywood. Journal of the Korean Wood Science and Technology 12 [2]
• LeVan S.L., Kim J.M., Nagel R.J., Evans J.W. [1996]: Mechanical properties of fire-retardant-treated plywood after cyclic temperature exposure. Forest Products Journal 46 [5]: 64-71
• Lutomski K. [2002]: Metody badań chemicznych środków ochrony drewna i technologii ich stosowania (Methods of chemical testing of wood preservatives and technologies of their application). Wydawnictwo Akademii Rolniczej w Poznaniu, Poznań: 137-139
• Mahr M.S., Hübert T., Sabel M., Schartel B., Bahr H., Militz H. [2012]: Fire retardancy of sol-gel derived titania wood-inorganic composites. Journal of Materials Science 47 [19]: 6849-6861
• Peterson J.M. [2006]: Flammability Testing of Materials Used in Construction, Transport and Mining. Woodhead Publishing: 275-301
• Soltani A., Hosseinpourpia R., Adamopoulo S., Taghiyari H.R., Ghaffaria E. [2016]: Effects of Heat-Treatment and Nano-Wollastonite Impregnation on Fire Properties of Solid Wood. BioResources 11 [4]: 8953-8967
• Taghiyari H.R. [2012]: Fire-retarding properties of nano-silver in solid woods. Wood Science and Technology 46 [5]: 939-952. DOI: 10.1007/s00226-011-0455-6
• Wang M., Ye B., Wenjing S., Haiping J., Li L. [2012]: Synergistic effect of zeolite on bonding strength of flame retardant plywood. Applied Mechanics and Materials 481-485
• Wang M., Wang X., Li L., Ji H. [2014]: Fire performance of plywood treated with ammonium polyphosphate and 4A zeolite. BioResources, 9 [3]: 4934-4945
• Wang S.-Y., Rao Y.-C. [1999]: Structural performance of fire-retardant treated plywood: Effect of elevated temperature. Holzforschung 53: 547-552
• Yew M.C., Ramli Sulong N.H., Yew M.K., Amalina M.A., Johan M.R. [2015]: Eggshells: A novel bio-filler for intumescent flame-retardant coatings. Progress in Organic Coatings
• Zenkteler M. [1996]: Kleje i klejenie drewna (Adhesives and wood gluing). Wydawnictwo Akademii Rolniczej w Poznaniu, Poznań: 208-237
• List of standards
• EN 12092:2002 Adhesives – Determination of viscosity EN-1245:2011 Adhesives – Determination of pH
• EN 310:1993 Wood-Based Panels. Determination of Modulus of Elasticity in Bending and of Bending Strength
• EN 314-1:2004 Plywood. Bonding quality. Test methods
• EN 314-2:1993 Plywood. Bonding quality. Requirements
• EN-322:1999 Wood-based panels – Determination of moisture content
• EN 827:2005 Adhesives – Determination of conventional solid content and constant mass solids content
• EN-ISO 9363:2004 Plastics – Phenolic resins – Determination of the gel time at a given temperature using automatic apparatus
• PN-C-89352-3:1996 Wood adhesives. Test methods – Determination of gelation time
• PN-ISO 8962:1996 Plastics – Polymer dispersions – Determination of density

Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).