Nano ölçekte Bor Nitrürle Emprenyelenmiş Ahşapta Nano Partiküllerin Dağılımları

Öz

Termal kararlılık, ahşap materyallerin en önemli özelliklerinden biridir. Bu yüzden birçok çalışma termal kararlılığı iyileştirmek için yürütülmektedir. Nanoteknoloji geleneksel metotlarla sağlanamayan termal kararlılığı artırmak için önemli bir fırsat sunmaktadır. Odun içerisinde nanopartiküllerin dağılımları ne kadar iyiyse odunun termal kararlılığındaki iyileşme daha yüksek olmaktadır. Bu çalışmada; odun, vakum ve basınç oranları kontrol edilebilen bir kabin içerisinde %3lük bir nano boyutta bor nitrür (BN) çözeltiyle emprenye edilmiştir. Emprenye sonrasında, SEM/EDX analizi, nanopartiküllerin dağılımını belirlemek için yürütülmüştür. SEM resimlerine göre, geçit ve hücre duvarları üzerinde bazı BN kalıntılarına rastlanmıştır. Buna karşın bu BN kalıntılarının yüzeyin (örnekler 30 mm kalınlığındadır) 10 mm derinliğine kadar görüntülenebilmiştir.

Anahtar Kelimeler

• BN,Dişbudak odunu,Nano partikül,Emprenye,İnovasyon,SEM Analizi

Distribution of Nano Particles in the Wood Impregnated with Nano Scale Boron Nitride

Abstract

Thermal stability is the one of the most important properties of wood materials. Therefore, many papers have been conducted to improve the thermal instability. Nanotechnology offers an important opportunity to improve the thermal stability that cannot be provided by traditional methods. Nanoparticles distribution inside the wood is an economical and simple method to improve the thermal properties of wood. In this study, wood was impregnated with nano-sized boron nitride (BN) with a solution of 3% in a vessel which can be controlled the ratio of vacuum and pressure. After impregnation, SEM/EDX analysis was conducted to determine the distribution of nano particles. According to SEM pictures, some deposits of BN on the pits and the cell wall were found. However, the BN deposits were only viewed until 10 mm deeply (samples are 30 mm thickness) under the surface.

Keywords

• BN,Ash wood,Nano particle,Impregnation,Innovation,SEM analysis

References

1. Y. Afrouzi, A. Omidvar, and P. Marzbani, “Effect of Artificial Weathering on the Wood Impregnated with Nano-Zinc Oxide”, World Applied Sciences Journal, vol. 22, issu. 9, pp. 1200-1203, 2013.
2. Y. Akhtari and M. Arefkhani, “Study of Microscopy Properties of Wood Impregnated with Nanoparticles during Exposed to White-Rot Fungus”, Agriculture Science Developments, vol.2, issu. 11, pp. 116-119, 2013.
3. M. Akhtari, M. G. Kokandeh, H. R. Taghiyari, “Potential Usage of Nanotechnology in Wood Drying: Treating Poplar Boards with Nano-metals Affects the Drying Behavior”, Digest Journal of Nanomaterials and Bio-structures, vol.7, issu. 4, pp. 1627-1637, 2012.
4. D. Aydemir, B. Civi, M. Alsan, A. Can, H. Sivrikaya, G. Gunduz, and X. A. Wang, “Mechanical, Morphological and Thermal Properties of Nano-boron Nitride Treated Wood Materials”, Maderas: ciencia y technologia, vol. 18, issu. 1 pp.19-32, March 2016.
5. D. Aydemir, G. Uzun, H. Gumus, H. Muş, S. Yildiz, S. Gumus, T. Bardak and G. Gunduz, “Nanocomposites of polypropylene/nano titanium dioxide: effect of loading rates of nano titanium dioxide”, Materials Science, vol.22issu.3, pp.364-369, 2016.
6. N.Ayrilmis,T. Dundar, A. Kaymakci, F.Ozdemir, and J. H. Kwon,“Mechanical and Thermal Properties of Wood-Plastic Composites Reinforced with Hexagonal Boron Nitride”, Polymer composites vol. 35, issu. 1,pp. 194–200, 2014.
7. H. Chang and H. Leung, “Evaluation of antibacterial activities of zinc oxide, titanium dioxide nanocomposites prepared by sol-gel method”, Nanotechnology, vol.1, pp. 811-814, 2008.
8. C. A. Clausen, “Nanotechnology: implications for the wood preservation industry”, International Research Group on Wood Protection, Stockholm, Sweden, IRG/WP/07-30415, pp: 15, 2007.

9. S. Habibzade, H. R. Taghiyari, A. Omidvar, and H. R. Roudi, “Effects of Impregnation with Styrene and Nano-Zinc Oxide on Fire-Retarding, Physical, and Mechanical Properties of Poplar Wood”, Cerne, vol. 22, issu. 4, pp. 465-474, 2016.
10. M. G. Kookandeh, H. R. Taghiyari, and H. Siahposht, “Effects of heat treatment and impregnation with zincoxide nanoparticles on physical, mechanical, and biological properties of beech wood”, Wood Sci Technol, vol. 48, pp.727–736, 2014.
11. H. Matsunaga, M. Kiguchi, and P. D. Evans, “Micro distribution of copper-carbonate and iron oxide nanoparticles in treated wood”, J.Nanopart Res,vol. 11, pp. 1087–1098, 2009.
12. H. R. Taghiyari, A. Enayati, and H. Gholamiyan, “Effects of nano-silver impregnation on brittleness, physical and mechanical properties of heat-treated hardwoods”, Wood Sci Technol,vol. 47, pp. 467–480, 2013.
13. T. M. Xia, M. Kovochich, L. Liong, B.Madler,H. Gilbert, J. I. Shi, J.I. Yeh and A.E. Nel, “Comparison of the mechanism of toxicity of zinc oxide and cerium oxide nanoparticles based on dissolution and oxidative stress properties”. ACS Nano, vol. 2, pp. 2121-2134, 2008.
14. Afrouzi YM, Marzbani P, Omidvar A (2015). The Effect of Moisture Content on the Retention and Distribution of Nano-Titanium Dioxide in the Wood. Maderas. Ciencia y tecnología 17(2): 385 – 390.
15. Can, A & Sivrikaya, H. (2014). Effects of nano-zinc oxide based paint on weathering performance of coated wood. 3rd International Conference on Processing Technologies for the Forest and Bio-based Products Industries (PTF BPI 2014), Kuchl/Austria, 2014.
16. Sozen, E., Zor, M., & Aydemir, D. (2018). The Effect of Nano TiO2 and Nano Boron Nitride on Mechanical, Morphological and Thermal Properties of WF/PP Composites. Drvna industrija: Znanstveni časopis za pitanja drvne tehnologije, 69(1), 13-22.