Paper Title:
Dynamic Rheological Behaviors of the Bone Scaffold Reinforced by Chitin Fibres
  Abstract

In this study, a novel bioabsorbable porous bone scaffold reinforced by chitin fibres was prepared, the porosity of which is about 90 % and the pore size is approximately 200µm. The Advanced Rheological Enlarged System (ARES) was used to study the dynamic rheological behaviors of the ropy materials which would be made into the reinforced scaffold. The increase of the fibres’ volume content (Cf) enhanced the complex modulus (G*) and complex viscosity (h*) of the materials, the reason of which is that the fibres formed networks in the materials. When Cf increased from 35 % to 45 %, the storage modulus (G’) and loss modulus (G’’) curve showed obvious yielding behavior, which indicates that G’ and G’’ of the materials are hardly variable in a wide range. When Cf was more than 35 %, the loss factor (tand) was obviously lower than 1 and the materials exhibited viscoelastic properties, which result in a disadvantage for materials’ processing.

  Info
Periodical
Materials Science Forum (Volumes 475-479)
Main Theme
Edited by
Z.Y. Zhong, H. Saka, T.H. Kim, E.A. Holm, Y.F. Han and X.S. Xie
Pages
2387-2390
DOI
10.4028/www.scientific.net/MSF.475-479.2387
Citation
X.M. Li, Q. L. Feng, "Dynamic Rheological Behaviors of the Bone Scaffold Reinforced by Chitin Fibres", Materials Science Forum, Vols. 475-479, pp. 2387-2390, 2005
Online since
January 2005
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Lie Feng Liang, Jie Weng, Bo Feng, Shao Xing Qu
Abstract:Porous blocks of bioactive ceramics are a more preferable tissue substitute to replace and reconstruct the defected tissues in that their...
2367
Authors: Qian Peng, Shao Xing Qu, Xiao Ying Lu, Jie Weng
Abstract:Hydroxyapatite (HA) spherulites had been fabricated successfully through a novel approach including chitin emulsion and geletion processes....
419
Authors: Shingo Masuda, Yusuke Yoshihara, Kazuaki Muramatsu, Izumi Wakebe
Abstract:Beta-tricalcium phosphate/carboxymethyl chitin composites [TCP/CMCh] of various ratios of TCP granules and CMCh were made and their...
791
Authors: Qian Peng, Jie Weng, Xiao Hong Li, Zong Wei Gu
Abstract:A porous composite scaffold for tissue engineering had been developed through a novel gel-casting approach with needle-like nano...
199
Authors: Qian Peng, L. Ming, C.X. Jiang, Bo Feng, Shao Xing Qu, Jie Weng
Abstract:Hollow hydroxyapatite microspheres (H-HAMs) with controlled characteristic mesoporous structure on the shell were successfully fabricated by...
65