Study on Preventing Springback for Nanoporous Thermal Insulating Composites

Article Preview

Abstract:

nanosilica porous thermal insulating composites belong to super thermal insulations, which are prepared by dry molding technology. They have many advantages in comparison with aerogel such as easy preparation and good mechanical property. However, springback phenomenon is found in the process of molding. The springback is easy to lead to cracking of the samples, which directly affects applications of the composites. In order to solve this problem, steam curing method is introduced and the effects of steam curing medium and steam curing time on springback ratio are investigated. The results show that the springback ratio of composites is only 6.45% when water is selected as steam curing medium and the optimum steam curing time is 30 min.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

97-100

Citation:

Online since:

October 2014

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2014 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

[1] J. Kuhn, T. Gleissner, M.C. Arduini-Schuster: Non-Cryst. Solids Vol. 186 (1995), p.291.

Google Scholar

[2] J. Kim, T.H. Song: Int. J. Heat Mass Transfer Vol. 64 (2013), p.783.

Google Scholar

[3] D. Lee, P.C. Stevens, P. Stevens: Non-Cryst. Solids Vol. 186 (1995), p.285.

Google Scholar

[4] V.M. Gun'ko, I.F. Mironyuk, V.I. Zarko: Colloid Interface Sci Vol. 289 (2005), p.427.

Google Scholar

[5] V.M. Gun'ko, V.I. Zarko, V.V. Turov: Colloid Interface Sci Vol. 220 (1999), p.302.

Google Scholar

[6] J.P. Feng, D.P. Chen, W. Ni: Non-Cryst. Solids Vol. 356 (2010), p.480.

Google Scholar

[7] I. Abe, K. Sato, H. Abe and M. Naito: Adv. Powder Technol Vol. 19 (2008), p.311.

Google Scholar

[8] Z.S. Deng, J. Wang, A.M. Wu: Non-Cryst. Solids Vol. 225 (1998), p.101.

Google Scholar

[9] J.E. Fesmire: Cryogenics Vol. 46 (2006), p.111.

Google Scholar

[10] J.P. Feng, Y.Y. Yan, D.P. Chen: Composites Part B Vol. 42 (2011), p.1821.

Google Scholar