Journal of Nanomaterials & Molecular NanotechnologyISSN: 2324-8777

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Research Article, J Nanomater Mol Nanotechnol Vol: 2 Issue: 1

Effects of Nano-Wollastonite on Thermal Conductivity Coefficient of Medium-Density Fiberboard

Hamid Reza Taghiyari1*, Kamran Mobini2, Younes Sarvari Samadi3, Zahra Doosti3, Fattane Karimi3, Mehran Asghari3, Asghar Jahangiri1 and Pezhman Nouri1
1The Faculty of Civil Engineering, Shahid Rajaee Teacher Training University, Tehran, Iran
2School of Mechanical Engineering, Shahid Rajaee Teacher Training University, Tehran, Iran
3Nano-Technology Scientific Association of Shahid Rajaee Teacher Training University, Tehran, Iran
Corresponding author : Hamid Reza Taghiyari
The Faculty of Civil Engineering, Shahid Rajaee Teacher Training University (SRTTU), Lavizan, Shabanloo St., Tehran, Iran,
Tel: (+ 98) 0912-2000235; Fax: (+ 98-21) 22970021
E-mail: [email protected]; [email protected]
Received: December 10, 2012 Accepted: January 09, 2013 Published: January 15, 2013
Citation: Taghiyari HR, Mobini K, Sarvari Samadi Y, Doosti Z, Karimi F, et al. (2013) Effects of Nano-Wollastonite on Thermal Conductivity Coefficient of Medium-Density Fiberboard. J Nanomater Mol Nanotechnol 2:1. doi:10.4172/2324-8777.1000106

Abstract

Effects of Nano-Wollastonite on Thermal Conductivity Coefficient of Medium-Density Fiberboard

Effect of wollastonite nanofibers on the improvement of thermal conductivity coefficient of medium-density fiberboard (MDF) was studied here to find a possible solution to decrease hot-press time as a bottle-neck during composite production. Nanowollastonite (NW) was applied at 10%, based on the dry weight of wood fibers. Density of the control MDF boards was 0.66 g/cm3. Thermal conductivity coefficient was measured using an apparatus based on Fourier’s Law for heat conduction. Results indicated that thermal conductivity was increased by 11.5% in NW-treated MDF boards in comparison to the control boards; thermal conductivity of control MDF was 0.099, whereas that of the NW-treated MDF boards was 0.110 (w/mk). It may then be concluded that higher thermal conductivity of wollastonite nanofibers, spread all over the MDF-matrix, resulted in the increased thermal conductivity coefficient of NW-treated boards. This increased thermal conductivity contributed to better resin cure in the core section of the MDF mat, resulting in improved physical and mechanical properties reported in prior studies.
 

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