Journal of the Korean Wood Science and Technology

The Korean Society of Wood Science & Technology (한국목재공학회)
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Decay of Populus cathay Treated with Paraffin Wax Emulsion and Copper Azole Compound

  • Liu, Jie (Beijing Key Laboratory of Wood Science and Engineering, MOE Key Laboratory of Wooden Material Science and Application, Beijing Forestry University) ;
  • Liu, Min (Beijing Key Laboratory of Wood Science and Engineering, MOE Key Laboratory of Wooden Material Science and Application, Beijing Forestry University) ;
  • Hou, Bingyi (Beijing Key Laboratory of Wood Science and Engineering, MOE Key Laboratory of Wooden Material Science and Application, Beijing Forestry University) ;
  • Ma, Erni (Beijing Key Laboratory of Wood Science and Engineering, MOE Key Laboratory of Wooden Material Science and Application, Beijing Forestry University)
  • Received : 2018.09.19
  • Accepted : 2018.12.21
  • Published : 2019.01.25
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Abstract

In order to investigate the decay process of wood treated with preservative, waterproofing agent and their compound systems, a full-cell process was applied to impregnate the sapwood of poplar (Populus cathay) at paraffin wax emulsion concentrations of 0.5% and 2.0%, Copper Azole (CA) concentrations of 0.3% and 0.5%, and their four compound systems, respectively. Leaching tests and laboratory decay resistance against the white-rot fungus Corious versicolor (L.) Murrill for treated wood were carried out according to the America Standard E11-06 and China Standard GB/T 13942.1-2009. At certain time intervals during the decay test, samples were characterized by Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction technique (XRD) to investigate the time-dependent changes of chemical components and crystalline structure, thus clarifying the decay mechanisms. The results suggested that white-rot fungi degrade hemicellulose and lignin in the wood cell wall first, followed by a simultaneous degradation of polysaccharides and lignin. Besides, CA could not only slower the decomposition of both hemicellulose and lignin, but also reduce the degradation amount of hemicellulose. However, paraffin wax emulsion at high concentration had a negative effect on the impregnation of CA for the compound system treated wood.

Keywords

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Fig. 1. Leaching rate of CA and compound system treated wood.

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Fig. 2. FTIR of samples during the decay process. (a) Control. (b) 0.5%C. (c) 2.0%W/0.5%C.

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Fig. 3. Relative absorbance at 1740 cm-1 (a) and 1242 cm-1 (b) of Control, CA and compound system treated wood during decay process.

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Fig. 4. FTIR of samples on the 10th (a), 20th (b), 30th (c), and 90th (d) day during decay process.

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Fig. 5. Crystallinity of samples during decay process.

Table 1. Group of wood samples

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Table 2. Evaluation criteria for laboratory test of wood decay resistance in China

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Table 3. Weight percent gain and mass loss rate of the samples.

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References

  1. AWPA (American Wood Protection Association Standard) U1-08, 2008. Standard Method for Use Category System: Use Specification for Treated Wood, America.
  2. AWPA (American Wood Protection Association Standard) E11-06, 2006. Standard Method for Accelerated Evaluation of Preservative Leaching, America.
  3. AWPA (American Wood Protection Association Standard) A21-14, 2014. Standard Method for the Analysis of Wood and Wood Treating Solutions by Inductively Coupled Plasma Emission Spectrometry, America.
  4. China Standard GB/T 13942.1-2009. Durability of wood: Method for laboratory test of natural decay resistance, China.
  5. Bari, E., Nazarnezhad, N., Kazemi, S.M., Ghanbary, M.A T., Mohebby, B., Mohebby, B., Schmidt, O., Clausen, C.A. 2015. Comparison between degradation capabilities of the white rot fungi Pleurotus ostreatus and Trametes versicolor in beech wood. International Biodeterioration & Biodegradation 104: 231-237. https://doi.org/10.1016/j.ibiod.2015.03.033
  6. Cao, J.Z., Yu, L.L. 2010. Properties of wood treated with water-borne preservatives. Beijing, China.
  7. Chen, R.W., Li, H.M., Zhang, Z.X., Yan, T. 2009. Effects of waterproof additives on hygroscopic performance of preservative-treated wood. China Wood Industry 23(5): 51-53. https://doi.org/10.3969/j.issn.1001-8654.2009.05.015
  8. Chi, Y.J. 2005. FTIR analysis on function groups of David Poplar wood and lignin degraded by 6 species of wood white-rot fungi. Scientia Silvea Sinicae 41(2): 136-140.
  9. Chinese Standard GB/T13942-2009. Durability of wood-Method for laboratory test of natural decay resistance, China.
  10. Du, F.Y. 2004. Study on law of degradation sequence in lignocelluose by white-rot fungi. Master. Thesis, Huazhong University of Science & Technology, China.
  11. Fackler, K., Stevanic, J.S., Ters, T., Hinterstoisser, B., Schwanninger, M., Salmen, L. 2011. FT-IR imaging microscopy to localize and characterize simultaneous and selective white-rot decay within spruce wood cells. Holzforschung 48(65): 1-10. https://doi.org/10.1515/hfsg.1994.48.1.1
  12. Freschet, G.T., Weedon, J.T., Aerts, R., Hal, J.R.V., Cornelissen, J.H.C. 2012. Interspecific differences in wood decay rates: insights from a new short-term method to study long-term wood decomposition. Journal of Ecology 100(1): 161-170. https://doi.org/10.1111/j.1365-2745.2011.01896.x
  13. Huang, Y.X., Ma, E.N., Zhao, G.J. 2015. Thermal and structure analysis on reaction mechanisms during the preparation of activated carbon fibers by KOH activation from liquefied wood-based fibers. Industrial Crops and Products 69: 447-455. https://doi.org/10.1016/j.indcrop.2015.03.002
  14. Humar, M., Lesar, B. 2008. Fungicidal properties of individual components of copper-ethanolamine-based wood preservatives. International Biodeterioration & Biodegradation 62(1): 46-50. https://doi.org/10.1016/j.ibiod.2007.06.017
  15. Jiang, M.L., Zhang, Y. 2008. Leachability of copperbased wood preservatives. China Wood Industry 22(3): 38-40. https://doi.org/10.3969/j.issn.1001-8654.2008.03.012
  16. Kartal, S.N., Terzi, E., Yilmaz, H., Goodell, B. 2015. Bioremediation and decay of wood treated with ACQ, micronized ACQ, nano-CuO and CCA wood preservatives. International Biodeterioration & Biodegradation 99: 95-101. https://doi.org/10.1016/j.ibiod.2015.01.004
  17. Lee, A., Jang,J., Hwang, W., Kim, N. 2017. Decay and Termite Resistance of Yellow-Hearted Pine (Pinus densiflora for. erecta Uyeki). Journal of the Korean Wood Science and Technology 45(1): 12-19. https://doi.org/10.5658/WOOD.2017.45.1.12
  18. Lee, H., Hwang, J., Lee, H.M., Son, D.W. 2016. Wood Decay Properties of Difference MCQ Retention Level. Journal of the Korean Wood Science and Technology 44(5): 716-725. https://doi.org/10.5658/WOOD.2016.44.5.716
  19. Lesar, B., Straze, A., Humar, M. 2011. Sorption properties of wood impregnated with aqueous solution of boric acid and montan wax emulsion. Journal of Applied Polymer Science 120(3): 1337-1345. https://doi.org/10.1002/app.33196
  20. Li, G.Y., Huang, A.M., Qin, T.F., Huang, L.H. 2010. FTIR studies of masson pine wood decayed by brown-rot fungi. Spectroscopy and Spectral Analysis 30(8): 2133-2136. https://doi.org/10.3964/j.issn.1000-0593(2010)08-2133-04
  21. Li, X.Y., Zhang, M.H., Shao, Z.W., Zhou, Y.J. 2017. The degree of crystallinity and the microfibril angle of acetylated wood studied by X-ray diffraction. Journal of Inner Mongolia Agricultural University (Natural Science Edition) 35(4): 121-124.
  22. Liao, Y.Q., Zhong, H., Ma, E.N. 2016. Stress relaxation of paraffin wax emulsion/copper azole compound system treated wood. Agricultural Science & Technology 17(5): 1243-1267.
  23. Lin, J., Zhao, G.J., Meng, L.X., Li, Z.P. 2010. Analysis of decayed wood by fungi with X-ray Diffractometry and Fourier Transform Infrared Spectroscopy. Spectroscopy and Spectral Analysis 30(6): 1674-1677. https://doi.org/10.3964/j.issn.1000-0593(2010)06-1674-04
  24. Liu, M., Zhong, H., Ma, E.N., Liu, R. 2018. Resistance to fungal decay of paraffin wax emulsion/copper azole compound system treated wood. International Biodeterioration & Biodegradation 129: 61-66. https://doi.org/10.1016/j.ibiod.2018.01.005
  25. Pandey, K.K., Pitman, A.J. 2003. FTIR studies of the changes in wood chemistry following decay by brown-rot and white-rot fungi. International Biodeterioration & Biodegradation 52(3): 151-160. https://doi.org/10.1016/S0964-8305(03)00052-0
  26. Pandey, K.K., Nagveni, H.C. 2007. Rapid characterisation of brown and white rot degraded chir pine and rubberwood by FTIR spectroscopy. Holz als Rohund Werkstoff 65(6): 477-481. https://doi.org/10.1007/s00107-007-0181-9
  27. Pandey, K.K., Pitman, A.J. 2010. Examination of the lignin content in a softwood and a hardwood decayed by a brown-rot fungus with the acetyl bromide method and Fourier transform infrared spectroscopy. Journal of Polymer Science Part A Polymer Chemistry 42(10): 2340-2346. https://doi.org/10.1002/pola.20071
  28. Qin, D.C. 2004. A fundamental study on the application of CuAz preservatives for bamboo. Doctor. Thesis, Chinese Academy of Forestry, China.
  29. Sen, S., Tascioglu, C., Tirak, K. 2009. Fixation, leachability, and decay resistance of wood treated with some commercial extracts and wood preservative salts. International Biodeterioration & Biodegradation 63(2): 135-141. https://doi.org/10.1016/j.ibiod.2008.07.007
  30. Tang, Z.Z., Yu, L.L., Ma, X.J., Zhu, L.Z. 2013. The impacts of several main waterborne preservative treated wood on the environmental safety. Chemistry and Industry of Forest Products 33(3): 138-142. https://doi.org/10.3969/j.issn.0253-2417.2013.03.027
  31. Tascioglu, C., Tsunoda, K. 2010. Biological performance of copper azole-treated wood and wood-based composites. Holzforschung 64(3): 399-406. https://doi.org/10.1515/HF.2010.039
  32. Wang, H.X., Du, F.Y., Zhang, X.Y. 2006. Selective degradation of corn straw lignocellulose by white-rot fungi. Journal of Huazhong University of Science & Technology (Nature Science Edition) 34(3): 97-100. https://doi.org/10.3321/j.issn:1671-4512.2006.03.029
  33. Wang, J.H., Li, F.Z., Chen, F., Xu, M. 2013. Study on decay resistance and leach ability of nano copper oxide wood preservative. Forestry Science & Technology 38(1): 25-28.
  34. Wang, J.J., Xie, G.J., Li, X.W. 2011. Study on water repellent performance improvement of ACQ wood preservative. Guangdong Forestry Science & Technology 27(3): 59-61. https://doi.org/10.3969/j.issn.1006-4427.2011.03.011
  35. Wang, J.M., Ma, E.N., Cao, J.Z. 2015. Metal Corrosion of Copper Azole(CA-C) / Paraffin Wax Emulsion Compound System Treated Wood. Scientia Silvea Sinicae 51(8): 74-80.
  36. Wang, J.M., Tang, S.H., Ma, E.N., Cao, J.Z. 2014. Properties of compound systems of paraffin wax emulsion and copper azole and treated wood. Agricultural Science & Technology 15(2): 222-224.
  37. Wang, J.M., Zhong, H., Ma, E.N., Cao, J.Z. 2018. Properties of wood treated with compound systems of paraffin wax emulsion and copper azole. European Journal of Wood and Wood Products 76(1): 315-323. https://doi.org/10.1007/s00107-016-1111-5
  38. Wang, X.Q., Fei, B.H., Ren, H.Q. 2009. FTIR spectroscopic studies of the photo-discoloration of Chinese Fir. Spectroscopy and Spectral Analysis 29(5): 1272-1275. https://doi.org/10.3964/j.issn.1000-0593(2009)05-1272-04
  39. Wang, Y.M. 2007. Study on application of CuAz wood/bamboo preservative and its properties evaluation. Doctor. Thesis, Inner Mongolia Agricultural University, China.
  40. Wang, Y.M., Ma, S.L., Feng, L.Q. 2014. The influence of oil heart treatment on wood decay resistance by Fourier infrared spectrum analysis. Spectroscopy and Spectral Analysis 34(3): 660-663.
  41. Wang, Y.M., Wang, X.M., Liu, J.L. 2009. Study on fixation mechanism of CuAz preservatives in bamboo by ATR-FTIR. Spectroscopy and Spectral Analysis 29(10): 2651-2653. https://doi.org/10.3964/j.issn.1000-0593(2009)10-2651-03
  42. Won, K., Hong, N., Jung, S., Kim, B., Byeon, H. 2017. Evaluation of Two Species of Soft Wood DecayResistance for Heat-Treated Wood Using the Catalyst (H2SO4). Journal of the Korean Wood Science and Technology 45(2): 195-201. https://doi.org/10.5658/WOOD.2017.45.2.195
  43. Won, K.R., Hong, N.E., Park, H.M., Byeon, H.S. 2016. Evaluation of Sapwood and Heartwood Decay Resistance after Immersion-Treatment with Pyroligneous Liquor. Journal of the Korean Wood Science and Technology 44(6): 880-889. https://doi.org/10.5658/WOOD.2016.44.6.880
  44. Xu, G.Q., Wang, L.H., Liu, J.L., Wu, J.Z. 2013. FTIR and XPS analysis of the changes in bamboo chemical structure decayed by white-rot and brown-rot fungi. Applied Surface Science 280: 799-805. https://doi.org/10.1016/j.apsusc.2013.05.065
  45. Yang, S.L., Luo, S., Wu, L.Q., Li, D., Ji, N. 2016. Literature overview on leaching resistance of copper-based wood preservatives. China Wood Industry 30(1): 35-38.
  46. Zhong, H., Wang, J.M., Tang, S. H., Ma, E.N. 2014. CA-B /New-type paraffin emulsion compound system: study on the mould preservation property of treated wood. Agricultural Science & Technology 15(12): 2053-2056.