Thermo-Chemical Evaluation of Wood Plastic Nanocomposite

Article Preview

Abstract:

Most applications expose the materials to wide range of temperatures, which may influence on thermal behavior of materials. Thermal degradation of wood polymer composites (WPCs) is a crucial aspect for application and manufacturing process of these products. In this research, wood polymer composites with different nanoclay contents were prepared by melts compounding method. The amount of wood flour and coupling agent were fixed at 40% and 10% wt% (total weight), respectively, and the different levels of nanoclay include 0, 3 and 5% wt% were used in preparing the composites. Thermal properties of nanocomposites were characterized by Differential Scanning Calorimeter (DSC) and thermal gravimetric analysis (TGA). The DSC analyses show that the crystallization temperature (Tc), enthalpy ΔHm, and the degree of crystallinity (Xc) of the nanocomposites were increased by addition of nanoclay. The TGA results indicate that by increasing the nanoclay percentage the degradation temperatures and thermal stability was enhanced.

You might also be interested in these eBooks

Info:

Periodical:

Advanced Materials Research (Volumes 463-464)

Pages:

565-569

Citation:

Online since:

February 2012

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2012 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] PV. Joseph, G. Mathew, K. Joseph, G. Groeninckx and S. Thomas: Dynamic mechanical properties of short sisal fibre reinforced polypropylene composites. Composites, Part A; 34A (3) (2003), p.275–90.

DOI: 10.1016/s1359-835x(02)00020-9

Google Scholar

[2] A. Lele, G. Galgali and S. Agarwal: Effect of clay orientation on the tensile modulus of polypropylene – nanoclay composites. J. Polymer, 45 (2004), p.6059–6069.

DOI: 10.1016/j.polymer.2004.06.027

Google Scholar

[3] J.K. Mishra, K-J. Hwang and C. s. Ha: Preparation, Mechanical and Rheological properties of thermoplastic polyolefin (TPO)/ Organo clay nanocomposites with reference to the effect maleic anhydride modified polypropylene as a compatibilizer. J. Polymer. 46 (2005).

DOI: 10.1016/j.polymer.2004.12.044

Google Scholar

[4] UN. Ratnayake and B. Haworth: Polypropylene-clay nanocomposites: influence of low molecular weight polar additives on intercalation and exfoliation behavior. Polym Eng Sci. 46 (2006), p.1008.

DOI: 10.1002/pen.20573

Google Scholar

[5] D. Garcia-Lopez, I. Gobernado-Mitre, JC. Merino and JM. Pastor: Effect of the amount and funtionalization grade of PPgMA compatibilization agent in polypropylene/clay nanocomposites. Polym Bull 59 (2007), p.667.

DOI: 10.1007/s00289-007-0810-9

Google Scholar

[6] W.S. Chow: Water absorption of epoxy/glass fiber/ organo-montmorillonite nanocomposites. Express Polymer Letters, 1 (2007), p.104–108.

DOI: 10.3144/expresspolymlett.2007.18

Google Scholar

[7] S.Y. Lee, I.A. Kang, G.H. Doh, W.J. Kim, J.S. Kim, H.G. Yoon and Q. Wu: Thermal, mechanical and morphological properties of polypropylene /clay /wood flour nanocomposites. eXPRESS Polymer Letters, Vol. 2, No. 2 (2008), p.78–87.

DOI: 10.3144/expresspolymlett.2008.11

Google Scholar

[8] S. Yin, S. Wang, TG. Rials, KM. Kit and MG. Hansen: Polypropylene composites filled with steam-exploded wood fibers from beetle-killed loblolly pine by compression-molding. Wood Fiber Sci. 39, 1 (2007), p.95–108.

Google Scholar

[9] J. Pascual, E. Fages, O. Fenollar, D. Garcı´a and R. Balart: Influence of the compatibilizer/ nanoclay ratio on final properties of polypropylene matrix modified with montmorillonite-based organoclay. Polym. Bull, 62 (2009), p.367–380.

DOI: 10.1007/s00289-008-0018-7

Google Scholar

[10] Biplab K. Deka and T.K. Maji: Effect of coupling agent and nanoclay on properties of HDPE, LDPE, PP, PVC blend and Phargamites karka nanocomposite. Composites science and technology. 70 (2010), p.1755–1761.

DOI: 10.1016/j.compscitech.2010.07.010

Google Scholar

[11] MCN. Yemele, A. Koubaa, A. Cloutier and P. Soulounganga: Effect of bark fibre content and size on the mechanical properties of bark/HDPE composites. Compos Part A. 41 (2010), p.131–7.

DOI: 10.1016/j.compositesa.2009.06.005

Google Scholar