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

Se Won Yook; Hyoun Ee Kim; Byung Ho Yoon; Young Mi Soon; Young Hag Koh

doi:10.1016/j.matlet.2009.01.080

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

Se Won Yook, Hyoun Ee Kim, Byung Ho Yoon, Young Mi Soon, Young Hag Koh

School of Biomedical Engineering

Research output: Contribution to journal › Article › peer-review

28 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 language	English
Pages (from-to)	955-958
Number of pages	4
Journal	Materials Letters
Volume	63
Issue number	11
DOIs	https://doi.org/10.1016/j.matlet.2009.01.080
Publication status	Published - 2009 Apr 30

Keywords

Compressive strength
Freeze casting
Hydroxyapatite
Polystyrene
Porous scaffolds

ASJC Scopus subject areas

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

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10.1016/j.matlet.2009.01.080

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title = "Improvement of compressive strength of porous hydroxyapatite scaffolds by adding polystyrene to camphene-based slurries",

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.",

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note = "Funding Information: This research was supported by a grant from the Fundamental R&D Program for Core Technology of Materials funded by the Ministry of Knowledge Economy, Republic of Korea.",

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AU - Yook, Se Won

AU - Kim, Hyoun Ee

AU - Yoon, Byung Ho

AU - Soon, Young Mi

AU - Koh, Young Hag

N1 - Funding Information: This research was supported by a grant from the Fundamental R&D Program for Core Technology of Materials funded by the Ministry of Knowledge Economy, Republic of Korea.

PY - 2009/4/30

Y1 - 2009/4/30

N2 - 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.

AB - 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.

KW - Compressive strength

KW - Freeze casting

KW - Hydroxyapatite

KW - Polystyrene

KW - Porous scaffolds

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DO - 10.1016/j.matlet.2009.01.080

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JF - Materials Letters

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

Abstract

Keywords

ASJC Scopus subject areas

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