Wood Science and Technology

, Volume 46, Issue 5, pp 939–952 | Cite as

Fire-retarding properties of nano-silver in solid woods

Original

Abstract

Fire-retarding properties of 200 ppm nano-silver solution, with a size ranging from 20 to 80 nm, on five woody species were studied and compared with Borax and Celcune®. Blocks of 150 × 130 × 9 mm³ were prepared and divided into four groups of control samples, nano-silver-, Borax-, and Celcune-impregnated specimens. A special apparatus was designed, and six fire-retarding properties of each specimen were measured, namely ignition, glowing, back-darkening and back-holing times, as well as length and width of burning. Results showed that all three kinds of treatments had improving effects on the fire-retarding properties. Celcune showed the best improvement on glowing time. Cluster analysis showed direct relation between density and fire-retardant properties; also, fire-retarding behaviors of the four hardwoods were quite different to those of the one softwood. Furthermore, there are improvements in some fire-retarding properties of nano-silver-impregnated specimens that are in connection with its heat-transfer property.

Notes

Acknowledgments

The author is grateful to Mr. Mohammad Hossein Nikoonejad, the Dean of The Basije Asatid of Shahid Rajaee Teacher Training University. I appreciate the kind efforts of Mr. Ne’mat Karimi, Mr. Nour-Mohammad Rahmatollahi, and Mr. Yousef Azari, BS graduates at SRTTU, and Mr. Taha Sokhandan and Mr. Abolfazl Rezaii, active members of Wood Industries Scientific Association of SRTTU, as well as Engin. Hadi Gholamiyan (The University of Tehran) for their great cooperation and help in primary wood preparation and tests.

References

  1. Anonymous (1999) Wood handbook—wood as an engineering material. Gen. Tech. Rep. FPL—GTR—113. U.S. Department of Agriculture, Forest Service, Forest Products Laboratory, Madison, p 463Google Scholar
  2. Ayrilmis N, Candan Z, White R (2007) Physical, mechanical, and fire properties of oriented strand board with fire retardant treated veneers. Holz Roh Werkst 65:449–458CrossRefGoogle Scholar
  3. LeVan SL, Winandy JE (1990) Effects of fire retardant treatments on wood strength: a review. Wood Fiber Sci 22(1):113–131Google Scholar
  4. Rassam GH, Taghiyari HR, Jamnani B, Khaje MA (2010) Effect of nano-silver treatment on densified wood properties, part one: swelling, recovery set, bending strength, International Research Group on Wood Protection, IRG/WP 10-40533, Section 4Google Scholar
  5. Taghiyari HR (2006) English for special purpose: wood and paper sciences and technology. Karafarinan Publication Organization, p 205. ISBN: 964-7284-50-0Google Scholar
  6. Taghiyari HR (2011a) Study on the effect of nano-silver impregnation on mechanical properties of heat-treated Populus nigra. Wood Sci Technol 45(2):399–404CrossRefGoogle Scholar
  7. Taghiyari HR (2011b) Effects of nano-silver on gas and liquid permeability of particleboard. Dig J Nanomater Bioresour 6(4):1509–1517Google Scholar
  8. Taghiyari HR, Sarvari SY (2010) Ultimate length for reporting gas permeability of Carpinus betulus wood; special topics and reviews in porous media, vol 1(4). Begell House ProductionGoogle Scholar
  9. Taghiyari HR, Rangavar H, Farajpour Bibalan O (2011) Nano-silver in particleboard. Bio Resour 6(4):4067–4075Google Scholar
  10. White RH, Dietenberger MA (1999) Wood handbook, chapter 17: fire safety; forest products laboratory, Gen. Tech. Rep. FPL—GTR—113. U.S. Department of Agriculture, Forest Service, Forest Products Laboratory, Madison, p 463Google Scholar
  11. Winandy JE (1998) Techline, properties and use of wood, composites, and fiber products, durability of fire-retardant-treated wood, United States Department of Agriculture, Forest Service, Forest Products Laboratory, VL-5, issued 01/98Google Scholar
  12. Winandy JE, Lebow PK, Murphy JF (2002) Predicting current serviceability and residual service life of plywood roof sheathing using kinetics-based models, the 9th Durability of Building Materials and Components Conference, Brisbane, Australia, p 7Google Scholar

Copyright information

© Springer-Verlag 2011

Authors and Affiliations

  1. 1.Wood Science and Technology Department, Faculty of Civil EngineeringShahid Rajaee Teacher Training University (SRTTU)Lavizan, Shabanloo St.Iran

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