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Impregnation of laser incised wood of Douglas fir and Japanese cedar by dipping (passive impregnation) in solutions of copper azole (CuAz-B) and a fire retardant (PPC)

  • Md Nazrul Islam EMAIL logo , Keisuke Ando , Hidefumi Yamauchi , Daisuke Kamikawa , Toshiro Harada , H.P.S. Abdul Khalil and Nobuaki Hattori
Published/Copyright: October 18, 2013
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Holzforschung
From the journal Holzforschung Volume 68 Issue 3

Abstract

The performance of the passive impregnation method of CO2-laser incised lumber has been investigated concerning wood preservation against different wood-destroying agents. Copper azole type B (CuAz-B) preservative and polyphosphatic carbamate (PPC) fire retardant were impregnated into Douglas fir and Japanese cedar lumber under both green and kiln-dried conditions. Final drying of the lumber was performed by steam injection or kiln drying. The temperature and pressure change in the lumber, as well as the total chemical retention, penetration, decay resistance, fire retardancy and total treatment time were calculated according to different standards. The preservative retention was higher in the Japanese cedar for both green and kiln-dried conditions (5.32 and 5.58 kg m-3, respectively) compared to Douglas fir (5.01 and 4.81 kg m-3). Fire retardant retentions were more than 100 kg m-3 in all cases. The penetration was approximately 100% throughout the lumber. There were no significant differences in the decay resistance test between the different categories of lumber. Moreover, it was possible to treat the green lumber in less than 48 h starting from the green conditon to the final drying. Hence, the presented passive impregnation technique could be useful for industrial application.

Keywords: Copper azole (CuAz-B); fire retardant (polyphosphatic carbamate PPC); laser incising; leaching; passive impregnation by dipping; penetration; processing time; refractory timber; retention of chemicals; wood
Corresponding author: Md Nazrul Islam, Department of Environmental and Natural Resource Science, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan; Life Science School, Khulna University, Khulna 9208, Bangladesh; and School of Industrial Technology, University Sains Malaysia, 11800 Penang, Malaysia, e-mail:

The authors are indebted to the Japan Society for the Promotion of Science (JSPS) for providing financial support in the form of a postdoctoral fellowship no. 22248019 (JSPS KAKENHI).

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Received: 2013-7-28
Accepted: 2013-9-23
Published Online: 2013-10-18
Published in Print: 2014-4-1

©2014 by Walter de Gruyter Berlin/Boston

Articles in the same Issue

  1. Frontmatter
  2. Original articles
  3. Enhancement of paper dry strength by carboxymethylated β-d-glucan from oat as additive
  4. Effect of fiber modification with 3-isopropenyl-dimethylbenzyl isocyanate (TMI) on the mechanical properties and water absorption of hemp-unsaturated polyester (UPE) composites
  5. Pulping-tailored fiber properties from a novel Brazilian Eucalyptus hybrid
  6. Mechanical performance of cellulose nanofibril film-wood flake laminate
  7. Variation of mechanical properties of single bamboo fibers (Dendrocalamus latiflorus Munro) with respect to age and location in culms
  8. Determination of the mechanical properties of radiata pine timber by means of longitudinal and transverse vibration methods
  9. A theoretical and experimental study of the circular sawing process
  10. Mathematical modeling of drying of Masson pine lumber and its asymmetrical moisture content profile
  11. Combined treatment of green pitch pine wood by heat and superheated steam and the effects on physical properties of the products
  12. Effect of mild torrefaction on pulverization of Norway spruce (Picea abies) by oscillatory ball milling: particle morphology and cellulose crystallinity
  13. Improved weathering performance and wettability of wood protected by CeO2 coating deposited onto the surface
  14. Impregnation of laser incised wood of Douglas fir and Japanese cedar by dipping (passive impregnation) in solutions of copper azole (CuAz-B) and a fire retardant (PPC)
  15. Short Notes
  16. Effect of initial moisture content on the anti-swelling efficiency of thermally modified Scots pine sapwood treated in a high-pressure reactor under saturated steam
  17. Comparison of antitermite properties of 2-thioxocoumarins against Coptotermes formosanus Shiraki
  18. Meetings
  19. Meetings
https://doi.org/10.1515/hf-2013-0140
Keywords for this article
Copper azole (CuAz-B); fire retardant (polyphosphatic carbamate PPC); laser incising; leaching; passive impregnation by dipping; penetration; processing time; refractory timber; retention of chemicals; wood

Articles in the same Issue

  1. Frontmatter
  2. Original articles
  3. Enhancement of paper dry strength by carboxymethylated β-d-glucan from oat as additive
  4. Effect of fiber modification with 3-isopropenyl-dimethylbenzyl isocyanate (TMI) on the mechanical properties and water absorption of hemp-unsaturated polyester (UPE) composites
  5. Pulping-tailored fiber properties from a novel Brazilian Eucalyptus hybrid
  6. Mechanical performance of cellulose nanofibril film-wood flake laminate
  7. Variation of mechanical properties of single bamboo fibers (Dendrocalamus latiflorus Munro) with respect to age and location in culms
  8. Determination of the mechanical properties of radiata pine timber by means of longitudinal and transverse vibration methods
  9. A theoretical and experimental study of the circular sawing process
  10. Mathematical modeling of drying of Masson pine lumber and its asymmetrical moisture content profile
  11. Combined treatment of green pitch pine wood by heat and superheated steam and the effects on physical properties of the products
  12. Effect of mild torrefaction on pulverization of Norway spruce (Picea abies) by oscillatory ball milling: particle morphology and cellulose crystallinity
  13. Improved weathering performance and wettability of wood protected by CeO2 coating deposited onto the surface
  14. Impregnation of laser incised wood of Douglas fir and Japanese cedar by dipping (passive impregnation) in solutions of copper azole (CuAz-B) and a fire retardant (PPC)
  15. Short Notes
  16. Effect of initial moisture content on the anti-swelling efficiency of thermally modified Scots pine sapwood treated in a high-pressure reactor under saturated steam
  17. Comparison of antitermite properties of 2-thioxocoumarins against Coptotermes formosanus Shiraki
  18. Meetings
  19. Meetings
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