Organosilanes in wood protection – chemical analysis of wood and cellulose treated with MTMOS

• Autorzy: Babicka Marta , Woźniak Magdalena , Ratajczak Izabela

Identyfikatory

DOI

10.5604/01.3001.0014.3674

• Języki publikacji: EN

Abstrakty

EN

Organosilanes in wood protection – chemical analysis of wood and cellulose treated with MTMOS. The paper presents the results of methyltrimethoxysilane (MTMOS) reactivity with Scots pine wood and cellulose. The lignocellulosic material after treatment with ethanolic solution of MTMOS was analysed using instrumental methods – atomic absorption spectrometry (AAS) and attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR). The analysis of silicon concentration in treated material indicated the presence of silane in structure of wood and cellulose. The bands characteristic of vibrations of the silicon-carbon and silicon-oxygen originating from MTMOS molecule were observed in the spectra of modified materials, which confirmed the reactivity of silane with wood and cellulose. Moreover, the chemical analysis indicated that MTMOS exhibited higher reactivity to cellulose than to pine wood.

PL

Organosilany w ochronie drewna – analizy chemiczne drewna i celulozy traktowanej MTMOS. W pracy przedstawiono wyniki badań reaktywności metylotrimetoksysilanu (MTMOS) z drewnem sosny zwyczajnej oraz celulozą. Materiał lignocelulozowy po działaniu etanolowego roztworu MTMOS był analizowany z wykorzystaniem metod instrumentalnych – AAS oraz ATR-FTIR. Analiza stężenia krzemu w impregnowanym materiale wskazuje na obecność silanu w strukturze drewna i celulozy. Charakterystyczne pasma dla drgań krzem-węgiel oraz krzem-tlen, pochodzące z cząsteczki MTMOS obserwowane w widmach modyfikowanych materiałów potwierdzają reaktywność silanu z drewnem oraz celulozą. Ponadto, analiza chemiczna wykazała, że MTMOS wykazywał wyższą reaktywność wobec celulozy niż drewna sosny.

Słowa kluczowe

EN

Scots pine; cellulose; methyltrimethoxysilane; infrared spectroscopy; atomic absorption spectrometry

• Wydawca: Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
• Czasopismo: Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology
• Rocznik: 2020
• Tom: No. 110
• Strony: 5--8
• Opis fizyczny: Bibliogr. 12 poz., rys.

Twórcy

autor

Babicka Marta

• Department of Chemistry, Faculty of Forestry and Wood Technology, Poznań University of Life Sciences, Poland

autor

Woźniak Magdalena

• Department of Chemistry, Faculty of Forestry and Wood Technology, Poznań University of Life Sciences, Poland

autor

Ratajczak Izabela

• Poznań University of Life Sciences, Department of Chemistry

Bibliografia

• 1. BREBNER K.I., SCHNEIDER M.H. 1985: Wood-polymer combinations: bonding of alkoxysilane coupling agents to wood. Wood Science Technology 19: pp. 75–81.
• 2. DONATH S., MILITZ H., MAI C. 2006: Treatment of wood with aminofunctional silanes for protection against wood destroying fungi. Holzforschung 60: pp. 210–216.
• 3. GIUDICE C.A., ALFIERI P.V., CANOSA G. 2013: Decay resistance and dimensional stability of Araucaria angustifolia using siloxanes synthesized by sol–gel process. International Biodeterioration & Biodegradation 83: pp. 166–170.
• 4. HAGER R. 1995: Waterborne silicones as wood preservatives. International Research Group on Wood Preservation (IRG/WP 95–30062) Stockholm.
• 5. HUNG K.C., WU J.H. 2018: Effect of SiO2 content on the extended creep behaviour of SiO2-based wood-inorganic composites derived via the sol-gel process using the stepped isostress method. Polymers 10 (409): pp. 1–12.
• 6. ISMAIL W.A., ALI Z.A., PUTEH R. 2012: Optical and physical properties of methyltrimethoxysilane transparent film incorporated with nanoparticles. Hindawi Publishing Corporation, Advances in Materials Science and Engineering, Article ID 124820.
• 7. MAI C., MILITZ H. 2004a: Modification of wood with silicon compounds. Inorganic silicon compounds and sol-gel systems: A review. Wood Science and Technology 37(5): pp. 339–348.
• 8. MAI C., MILITZ H. 2004b: Modification of wood with silicon compounds. Treatment systems based on organic silicon compounds – a review. Wood Science and Technology 37(6): pp. 453–461.
• 9. MIYAFUJI H., SAKA S. 2001: Na2O-SiO2 wood inorganic composites prepared by the sol-gel process and their fire resistant properties. Journal of Wood Science 47: 483-489.
• 10. RATAJCZAK I., MAZELA B. 2009: Chemical reaction of cellulose with alkoxysilane molecules. Part II. AAS analysis. Annals of Warsaw University of Life Sciences – SGGW Forestry and Wood Technology No 69: pp. 223–226.
• 11. RATAJCZAK I., WICHŁACZ-SZENTNER K., MAZELA B., HOCHMAŃSKA P., RISSMANN I. 2010: Silicon compounds as additives improving coating performance: fixation of silicon compounds with cellulose. European Journal of Wood and Wood Products 68: pp. 483–486.
• 12. TSHABALALA M.A., YANG V., LIBERT R. 2009: Surface modification of wood by alkoxysilane sol-gel deposition to create anti-mold and anti-fungal characteristics. Silanes and Other Coupling Agents 5: pp. 135–150.

Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).