Fabrication of polylactic acid/hydroxyapatite/graphene oxide composite and their thermal stability, hydrophobic and mechanical properties

被引：99

作者：

Gong, Ming ^{[1
]}

Zhao, Qian ^{[1
]}

Dai, Liming ^{[1
]}

Li, Yingying ^{[1
]}

Jiang, Tingshun ^{[1
]}

机构：

[1] Jiangsu Univ, Sch Chem & Chem Engn, Zhenjiang 212013, Jiangsu, Peoples R China

来源：

JOURNAL OF ASIAN CERAMIC SOCIETIES | 2017年 / 5卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Polylactic acid; Graphene oxide; Hydroxyapatite; Thermal stability; Hydrophobic property; Mechanical propertya; REDUCED GRAPHENE OXIDE; CARBON NANOTUBES; POLY(LACTIC ACID); PLA; NANOCOMPOSITES; HYDROXYAPATITE; DEGRADATION; FILMS; BIOCOMPATIBILITY; STRATEGIES;

D O I：

10.1016/j.jascer.2017.04.001

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：

A series of polylactic acid/hydroxyapatite/graphene oxide composite (PLA/HA/GO) were fabricated via solution blending and casting method using N, N-dimethyl-formamide (DMF) and CH2Cl2 as mutual solvents. The physicochemical properties of the resulting composites were characterized by means of FT-IR, SEM, TEM, Raman spectra, XRD and N2-physisorption. Particularly, the thermal stabilities, hydrophobic and mechanical properties of PLA/HA/GO composites were systematically investigated. The influences of GO content on thermal stabilities, hydrophobic and mechanical properties of the composites were also evaluated. The results showed that the addition of GO and HA not only improved the thermal stability of PLA, but also improved the hydrophobic property of PLA-based composites. By compared with the PLA/HA/GO composite, the tensile strength of pristine PLA is slight high. The tensile strength and hardness of PLA/HA/GO composites increased with the increase of GO content. The obtained PLA/HA/GOcomposite may be a promising material for load-bearing orthopedic implants. (C) 2017 The Ceramic Society of Japan and the Korean Ceramic Society. Production and hosting by Elsevier B.V. This is an open access article under the CC BY-NC-ND license.

引用

页码：160 / 168

页数：9

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