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Effect of a silane coupling agent on mechanical properties of hydroxyapatite/polycaprolactone composites
被引:3
|作者:
Yang, X. B.
[1
]
Lu, X.
[1
]
Ge, J. J.
[1
]
Weng, J.
[1
]
机构:
[1] SW Jiaotong Univ, Sch Mat Sci & Engn, Minist Educ, Key Lab Mat Adv Technol, Chengdu 610031, Peoples R China
来源:
BIOCERAMICS, VOL 20, PTS 1 AND 2
|
2008年
/
361-363卷
关键词:
polycaprolactone;
hydroxyapatite;
mechanical property;
silane coupling agent;
D O I:
10.4028/www.scientific.net/KEM.361-363.531
中图分类号:
TQ174 [陶瓷工业];
TB3 [工程材料学];
学科分类号:
0805 ;
080502 ;
摘要:
Silanization of hydroxyapatite was employed to improve the bonding between hydroxyapatite and polycaprolactone. FTIR of HA after silanization showed that new peaks attributed to silane do exist. The increase of melting and crystallization temperatures of silaned composites shown from DSC implied that there exists much stronger bonding between PCL and silaned HA particles. Fracture surface of composites after tensile testing observed by using SEM showed that silaned HA particles dispersed much evenly and coalesced compactly in PCL matrix, suggesting that silaned HA particles had good compatibility with PCL. The tensile strength and modulus increased from 16.81 MPa and 239.21 MPa to 20.49 MPa and 539.57 MPa, respectively.
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页码:531 / 534
页数:4
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