Electrochemically assisted co-deposition of calcium phosphate/collagen coatings on carbon/carbon composites
Electrochemically assisted co-deposition of calcium phosphate/collagen coatings on carbon/carbon composites
复制标题
碳/碳复合材料上电化学辅助共沉积磷酸钙/胶原涂层
DOI：
10.1016/j.apsusc.2010.11.088
复制
发表时间：
2011-02
影响因子：
6.7
通讯作者：
Hou, Xianghui
中科院分区：
文献类型：
--
作者：
Zhao, Xueni;Hu, Tao;Li, Hejun;Chen, Mengdi;Cao, Sheng;Zhang, Leilei;Hou, Xianghui
采用电化学辅助共沉积技术在炭/炭（C/C）复合材料表面制备了磷酸钙（CaP）/胶原复合涂层。采用扫描电子显微镜（SEM）、X射线衍射（XRD）、傅立叶变换红外光谱（FTIR）和X射线光电子能谱（XPS）等分析手段，系统研究了电解液中胶原蛋白浓度对涂层形貌、结构和成分的影响。通过划痕试验和拉伸结合试验评价了涂层的结合强度。结果表明，在含有胶原蛋白的电解液中，C/C复合材料表面形成了具有三维胶原网络结构的涂层。胶原网络的表面被均匀的CaP聚集体覆盖。涂层实际上是CaP和胶原蛋白的复合物。随着电解液中胶原浓度的增加，涂层中的羟基磷灰石（HA）是一种有利的成分。胶原网络的形成提高了涂层的内聚强度和附着强度。随着电解液中胶原蛋白浓度的增加，涂层与基体之间的结合强度增加。在电解液中胶原蛋白浓度为500 mg/L时制备的涂层直到施加的载荷达到32.0±2.2 N时才被刮掉，涂层的平均拉伸粘合强度为4.83±0.71 MPa。将500 mg/L的C/C复合涂层浸渍在30-33 ℃、10 ~（-3）M的Ca（OH）_2溶液中，C/C复合材料表面经96 h处理后，可获得与人骨相似的纳米结构HA/胶原复合涂层。
Calcium phosphate (CaP)/collagen coatings were prepared on the surface of carbon/carbon (C/C) composites by electrochemically assisted co-deposition technique. The effects of collagen concentration in the electrolyte on morphology, structure and composition of the coatings were systematically investigated using scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transformed infrared (FTIR) spectroscopy and X-ray photoelectron spectroscopy (XPS). The adhesive strength of the coatings was also evaluated by scratch tests and tensile bond tests. It was demonstrated that the coatings of three-dimensional collagen network structure was formed on the C/C composites from the electrolyte containing collagen. The surface of the collagen network was covered by uniform CaP aggregates. The coatings were actually composites of CaP and collagen. Hydroxyapatite (HA) was a favorable composition in the coatings with the increase of the collagen concentration in the electrolyte. The formed collagen network increased the cohesive and adhesive strength of the coatings. The adhesive strength between the coatings and substrates increased as the collagen concentration in the electrolyte increased. The coatings prepared at the collagen concentration of 500 mg/L in the electrolyte were not scraped off until the applied load reached 32.0±2.2 N and the average tensile adhesive strength of the coatings was 4.83±0.71 MPa. After C/C coated with composite coatings (500 mg/L) being immersed in a 10-3 M Ca (OH) 2 solution at 30-33 deg. C for 96 h, nano-structured HA/collagen coatings similar to the natural human bone were obtained on the C/C.
登录
查看更多内容
影响因子：
14
作者：
Liu, CS;Huang, Y;Cui, JH
通讯作者：
Cui, JH
DOI：
10.1002/(sici)1097-4636(19981205)42:3
发表时间：
1998-12
期刊：
Journal of biomedical materials research
影响因子：
--
作者：
Jianxi Lu;A. Gallur;B. Flautre;Karine Anselme;M. Descamps;B. Thierry;P. Hardouin
通讯作者：
Jianxi Lu;A. Gallur;B. Flautre;Karine Anselme;M. Descamps;B. Thierry;P. Hardouin
影响因子：
2.4
作者：
Y. Zhai;F. Cui;Y. Wang
通讯作者：
Y. Zhai;F. Cui;Y. Wang
DOI：
10.1007/978-0-387-77718-4
发表时间：
2009-06
期刊：
--
影响因子：
--
作者：
K. Groot;J. Wolke;J. Jansen
通讯作者：
K. Groot;J. Wolke;J. Jansen
影响因子：
14
作者：
Fan, YW;Duan, K;Wang, RZ
通讯作者：
Wang, RZ