Improvement of compressive strength of porous hydroxyapatite scaffolds by adding polystyrene to camphene-based slurries

Se W. Yook, Hyoun E. Kim, Byung H. Yoon, Young M. Soon, Young-Hag Koh

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

The compressive strength of porous hydroxyapatite (HA) scaffolds was enhanced by adding polystyrene (PS) polymer as a binder to hydroxyapatite (HA)/camphene slurries. As the PS content was increased from 0 to 20 vol.% in relation to the HA content, the compressive strength was significantly increased from 1.1 ± 0.2 to 2.3 ± 0.5 MPa, while the pore size was decreased from 277 ± 47 to 170 ± 29 μm. The improvement in the compressive strength was mainly attributed to both the suppression of the cracking of the green sample during freeze drying and the mitigation of the formation of micro-pores in the HA walls.

Original languageEnglish
Pages (from-to)955-958
Number of pages4
JournalMaterials Letters
Volume63
Issue number11
DOIs
Publication statusPublished - 2009 Apr 30

Fingerprint

Camphene
slurries
compressive strength
Polystyrenes
Slurries
Durapatite
Hydroxyapatite
Scaffolds
Compressive strength
polystyrene
porosity
freeze drying
retarding
Pore size
Binders
Drying
Polymers
polymers
camphene

Keywords

  • Compressive strength
  • Freeze casting
  • Hydroxyapatite
  • Polystyrene
  • Porous scaffolds

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Improvement of compressive strength of porous hydroxyapatite scaffolds by adding polystyrene to camphene-based slurries. / Yook, Se W.; Kim, Hyoun E.; Yoon, Byung H.; Soon, Young M.; Koh, Young-Hag.

In: Materials Letters, Vol. 63, No. 11, 30.04.2009, p. 955-958.

Research output: Contribution to journalArticle

Yook, Se W. ; Kim, Hyoun E. ; Yoon, Byung H. ; Soon, Young M. ; Koh, Young-Hag. / Improvement of compressive strength of porous hydroxyapatite scaffolds by adding polystyrene to camphene-based slurries. In: Materials Letters. 2009 ; Vol. 63, No. 11. pp. 955-958.
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