Ag nanoparticles effects on heat transfer in press cycle and physical and mechanical properties of particleboard

Authors

Abstract

In this paper, effect of Ag nanoparticles different contents on heat transfer during press cycle and physical and mechanical properties of particleboard was investigated. Mechanical strength including Internal Bonding (IB) and Bending Strength and physical properties including Water Absorption (WA) and Thickness Swelling (TS) after 2 and 24 hours soaking was determined. Heart transfer process from hot press plates to core layer of the mat during press time was recorded by thermocouples. Energy Dispersive X-Ray Spectroscopy (EDX) and Scanning Electron Microscopy (SEM) result prove presence and dispersion of nanoparticles in glue line well. Results indicate that Ag nanoparticles increase heat transfer to the core layer and cause IB improvement. But nanoparticles had negative effects on physical properties and increased WA and TS after 24 hour soaking. Heat transfer acceleration during hot press cycle is a way to reduce press time that results in efficiency increase by preserving essential strengths.

Keywords

References



- Chopkar, M . Sudarshan, S. Das, P.K. and Mann, I. 2008. Effect of Particle Size on Thermal Conductivity
of Nanofluid. Metallurgical and materials transations. 39(A):1535-1542.
- Chun, B. Kan, H. and Kim, S. 2008. Effect of alumina nanoparticles in the fluid on heat transfer in
double-pipe heat exchanger system. Korean Journal of Chemical Engineering. 25(5): 966-971.
 - Doosthoseini, K. 2007.Textbook of Wood compressed panels Production Technology and Application. 2
Ed. Tehran university press, 708pp.  
- Drake, P.A. 1997. The composite panel industry: a global market assessment. In: Proceedings of the 31st
International Particleboard/Composite Materials Symposium, Washington State University, USA.
- Easter, J. Chio, S. and Li, S. 2001. Anomalusly increased effective thermal conductivity of ethylenglyconbased
nanofluid containing Cu nanoparticles. Applied physics letter. 78(6):7-20.
- Kashanizadeh, M.1988. Investigation of production four important factors on quality of particleboard
made from veneer wastes (Beech). Master of science thesis. Tehran University. 164pp.
 - Kargarfard, A. Doosthoseini, K. Jahanlatibari, A. and Hassanzadeh, A. 2003. Press time and temperature
effect on heat transfer in particleboard production process. Research and Construction. 16: 56-65.
 - Layeghi, M. Bina, M. and Hashemi. A. 2010. Investigation of Ag nanoparticles on physical and
mechanical properties and thermal conductivity of particleboard. International conference of new
technologies in wood and pares industry. Azad university of Chalos. May 18-19.
 - Meng, F. and Sun, Z. 2009. A mechanism for enhanced hydrophilicity of silver nanoparticles modified
TiO2 thin films deposited by RF magnetron sputtering. Applied Surface Science. 255: 6715–6720.
 - Moghadassi, A. Masoud hosseini, S. and Henneke, D.E. 2010. Effect of CuO Nanoparticles in Enhancing
the Thermal Conductivities of Monoethylene Glycol and Paraffin Fluids. Industrial & Engineering
Chemistry Research. 49: 1900–1904.
 - Noorbakhsh, A. and Kargarfard, A. 2006. Effect of density and press time on properties of insulation
poplar particleboard. Iran wood and paper researches. 21 (2): 115-122.
- Ramtin, A. Dadkhah, B. and doosthoseini, K. 2008. Investigation of press time and temperature on
physical and mechanical properties of poplar OSB. Iran wood and paper Research. 23 (1):74-82.
 - Tabarsa, T. (1988). Investigation of mat moisture content, temperature, press time on beech particleboard
properties and polymerization of UF resin. Master of science thesis. Tehran University. 64 pp.
- Withers, R.O. Loutfy, J.C. 2004. Nano carbon materials for enhancing thermal transfer in fluids. Journal of Nanotechnology. 6 (123): 60-62.
- Xia, X.S. Cai, J. Hu,C. and Xei, U. 2006. Water Absorption Characteristics of Novel Cu/LDPE Nanocomposite for Use in Intrauterine Devices. Wiley Periodicals, Inc. 345-352.
Forest and Wood Products
Volume 65, Issue 3 - Serial Number 3
October 2013
Pages 339-349

Files

Share

How to cite

Statistics