[1]袁秋华,万磊,石鑫,等.HA-CS复合物界面作用与力学性能模拟[J].深圳大学学报理工版,2018,35(3):299-306.[doi:10.3724/SP.J.1249.2018.03299]
　YUAN Qiuhua,WAN Lei,SHI Xin,et al.Simulation study on interfacial interactions and mechanical properties of hydroxyapatite-chitosan composite materials[J].Journal of Shenzhen University Science and Engineering,2018,35(3):299-306.[doi:10.3724/SP.J.1249.2018.03299]
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HA-CS复合物界面作用与力学性能模拟()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第35卷
期数:
2018年第3期
页码:
299-306
栏目:
材料科学
出版日期:
2018-05-15

文章信息/Info

Title:
Simulation study on interfacial interactions and mechanical properties of hydroxyapatite-chitosan composite materials
文章编号:
201803009
作者:
袁秋华1; 万磊1; 石鑫1; 林亚宁2; 徐安平1; 张自强1; 陈泽汇1; 张培新1
1）深圳大学化学与环境工程学院，广东深圳 518060
2）中国电子科技集团公司第九研究所，四川绵阳621000
Author(s):
YUAN Qiuhua1;  WAN Lei1;  SHI Xin1;  LIN Yaning2;  XU Anping1;  ZHANG Ziqiang1;  CHEN Zehui1;  and ZHANG Peixin1
1) College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, Guangdong Province, P.R.China
2) 9th Institute of China Electronics Technology Group Corporation, Mianyang 621000, Sichuan Province, P.R.China
关键词:
生物材料学; 羟基磷灰石; 壳聚糖; 分子动力学; 结合能; 力学性能; 骨修复材料
Keywords:
biomaterial;  hydroxyapatite;  chitosan;  molecular dynamics;  binding energy;  mechanical property;  bone replacement material
分类号:
TB 39
DOI:
10.3724/SP.J.1249.2018.03299
文献标志码:
A
摘要:
羟基磷灰石（hydroxyapatite, HA）-壳聚糖（chitosan, CS）复合材料在很大程度上可实现HA与CS两者优势互补，有望成为一种理想的骨替换材料．本研究采用分子动力学(molecular dynamics, MD)方法研究HA的3个晶面（001）、（100）和（110）分别与CS复合后混合体系的相互作用，分析HA这3个晶面分别与CS复合后的力学性能．结果表明，3个晶面所对应结合能大小顺序为HA（110）＞HA（100）＞HA（001）．其中， HA（110）面与壳聚糖复合后的力学性能最佳，复合结构的剪切模量由29.2 GPa升至42.4 GPa；x、 y、 z方向上杨氏模量分别由92.0、62.7和57.0 GPa升至95.6、102.2和97.5 GPa，3个方向上的杨氏模量差量最大值由46.7%降为7.0%，由此克服了因材料各向异性导致的材料缺陷．
Abstract:
Hydroxyapatite-chitosan (HA-CS) composite could complement the advantages of the two materials and become an ideal bone replacement material. In this paper, by using the molecular dynamics (MD) method, we study the interactions between CS and the three lattice planes of HA ((001), (100) and (110)), respectively. The mechanical properties in the composites are also studied and analyzed. The results show that the highest binding energy appears between HA (110) and CS，whereas the lowest is between HA (001) and CS. On the other hand, the combination between HA (110) and CS has the best mechanical properties. The shear modulus of the composite material increases from 29.2 GPa to 42.4 GPa. Accordingly, the Young’s modulus rises from 92.0, 62.7 and 57.0 GPa to 95.6, 102.2 and 97.5 GPa, corresponding to the three Young’s modulus values in x, y and z directions, respectively. The maximum difference of Young’s moduli among the three directions are reduced from 46.7% to 7.0%, indicating that the material defects resulting from anisotropy could be overcome.

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备注/Memo

备注/Memo:
Received：2018-01-22；Accepted：2018-04-03
Foundation：Shenzhen Science and Technology Basic Research Foundation (JCYJ20150525092941007); National Nature Science Foundation of China (21471102)
Corresponding author：Associate professor Yuan Qiuhua．E-mail: yuanqiuh@szu.edu.cn; Lin Yaning. E-mail: linyaning7@163.com
Citation：YUAN Qiuhua, WAN Lei, SHI Xin, et al. Simulation study on interfacial interactions and mechanical properties of hydroxyapatite-chitosan composite materials［J］. Journal of Shenzhen University Science and Engineering, 2018, 35(3): 299-306.（in Chinese）
基金项目：深圳市科技基础研究计划资助项目（JCYJ20150525092941007）；国家自然科学基金资助项目（21471102）
作者简介：袁秋华(1967—)，男，深圳大学副教授、博士．研究方向：无机仿生材料．E-mail：yuanqiuh@szu.edu.cn
引文：袁秋华，万磊，石鑫，等．HA-CS复合物界面作用与力学性能模拟［J］. 深圳大学学报理工版，2018，35(3)：299-306.
更新日期/Last Update: 2018-04-28