学术探索
学术期刊
学术作者
新闻热点
数据分析
智能评审

High strength and bioactive hydroxyapatite nano-particles reinforced ultrahigh molecular weight polyethylene

被引：68
作者：
Fang, Liming
Gao, Ping
Leng, Yang
机构：
[1] Hong Kong Univ Sci & Technol, Dept Mech Engn, Kowloon, Hong Kong, Peoples R China
[2] Hong Kong Univ Sci & Technol, Dept Chem Engn, Kowloon, Hong Kong, Peoples R China
来源：
COMPOSITES PART B-ENGINEERING | 2007年 / 38卷 / 03期
关键词：
nano-structures; directional orientation; mechanical properties; extrusion;
D O I：
10.1016/j.compositesb.2006.05.004
中图分类号：
T [工业技术];
学科分类号：
08 [工学];
摘要：
Nano-sized hydroxyapatite (HA) particles reinforced UHMWPE composite was developed for biomedical applications. The biocomposite with HA volume fraction of 0.5 was successfully processed by combined swelling/twin-screw extrusion, compression molding, and then hot drawing. SEM and EDAX characterization revealed that HA nano-particles were homogeneously dispersed in UHMWPE. WAXD showed that hot drawing effectively oriented the UHMWPE chains along the drawing direction. The composite exhibited tensile strength of 100 +/- 22 MPa after hot drawing, which was comparable to that of cortical bone. The composite also exhibited great ability of inducing calcium phosphate precipitates on its surface in simulated body fluid, which was widely accepted as an indication of bioactivity. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码：345 / 351
页数：7
相关论文
共 25 条
[1]
Mechanical properties of injection molded hydroxyapatite-polyetheretherketone biocomposites [J].
Abu Bakar, MS ;
Cheang, P ;
Khor, KA .
COMPOSITES SCIENCE AND TECHNOLOGY, 2003, 63 (3-4) :421-425
[2]
HYDROXYAPATITE REINFORCED POLYETHYLENE - A MECHANICALLY COMPATIBLE IMPLANT MATERIAL FOR BONE-REPLACEMENT [J].
BONFIELD, W ;
GRYNPAS, MD ;
TULLY, AE ;
BOWMAN, J ;
ABRAM, J .
BIOMATERIALS, 1981, 2 (03) :185-186
[3]
Effect of particulate morphology on the tensile behaviour of polymer-hydroxyapatite composites [J].
Cheang, P ;
Khor, KA .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2003, 345 (1-2) :47-54
[4]
ABINITIO CALCULATIONS OF THE DEFORMATION OF POLYETHYLENE [J].
CRIST, B ;
RATNER, MA ;
BROWER, AL ;
SABIN, JR .
JOURNAL OF APPLIED PHYSICS, 1979, 50 (10) :6047-6051
[5]
ELLIOTT JC, 1994, STRUCTURE CHEM APTIE
[6]
Composite technology in load-bearing orthopaedic implants [J].
Evans, SL ;
Gregson, PJ .
BIOMATERIALS, 1998, 19 (15) :1329-1342
[7]
Processing and mechanical properties of HA/UHMWPE nanocomposites [J].
Fang, LM ;
Leng, Y ;
Gao, P .
BIOMATERIALS, 2006, 27 (20) :3701-3707
[8]
Processing of hydroxyapatite reinforced ultrahigh molecular weight polyethylene for biomedical applications [J].
Fang, LM ;
Leng, Y ;
Gao, P .
BIOMATERIALS, 2005, 26 (17) :3471-3478
[9]
AN ESTIMATE OF THE STRENGTH OF POLYMERS [J].
HE, T .
POLYMER, 1986, 27 (02) :253-255
[10]
Evaluation of in vitro bioactivity and biocompatibility of Bioglass(R)-reinforced polyethylene composite [J].
Huang, J ;
DiSilvio, L ;
Wang, M ;
Rehman, I ;
Ohtsuki, C ;
Bonfield, W .
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE, 1997, 8 (12) :809-813
123