将聚乙烯醇(PVA)和纳米羟基磷灰石(HA)按一定比例共混,采用反复冷冻-融化法制备出PVA/HA复合水凝胶.观察了PVA/HA复合水凝胶的微观结构和晶态结构,并在小牛血清稀释液润滑条件下进行了PVA/HA复合水凝胶与牛膝关节软骨的摩擦磨损试验.结果表明:随着冷冻-融化循环数的增加,PVA/HA复合水凝胶结构中氢键的作用增强,缠结结构链上的交联点增多,复合水凝胶的结晶度也随之提高,微孔结构趋于完整,因而使其压缩刚度增大;PVA/HA复合水凝胶与牛膝关节软骨的摩擦系数、接触变形和磨损量都随着冷冻-融化循环数的增加而显著减小,使复合水凝胶的减摩性和耐磨性提高.
参考文献
| [1] | JI Bing,GAO Jin,MA Yuanzheng,Manufacture of prosthetic nucleus and analysis of stress-relaxation properties,Journal of University of Science and Technology Beijing,27(5),589(2005)(冀冰,高瑾,马远征,髓核假体的制备及应力松弛特性的影响分析,北京科技大学学报,27(5),589(2005)) |
| [2] | GU Zhengqiu,XIAO Jiumei,ZHANG Xianghong,The development of a kind of artificial articular cartilage PVA hydrogel,Journal of Biomedical Engineering,16(1),13(1999)(顾正秋,肖久梅,张湘虹,人工软骨材料-聚乙烯醇水凝胶的研制,生物医学工程学杂志,16(1),13(1999)) |
| [3] | Z.Q.GU,J.M.Xiao,The Development of artificial cartilage PVA hydrogel,Bio-Medical Matcrials and Engineering,8(1),75(1998) |
| [4] | Hisatoshi Kobayashi,Masabumi Kato,Tetsushi Taguchi.Collagen immobilized PVA hydrogel-hydroxyapatite composites prepared by kneading methods as a material for peripheral cuff of artificial cornea,Materials Science and Engineering,24,729(2004) |
| [5] | WANG Yingjun,LIU Qing,WU Gang,The compounding in situ by precipitation of Poly (vinyl alcohol) hydrogel with hydroxyapatite and investigation on the structure and properties,Chinese Journal of Biomedical Engineering,24(2),150(2005)(王迎军,刘青,吴刚,沉淀法原位复合聚乙烯醇(PVA)/羟基磷灰石(HA)水凝胶的结构与性能研究,中国生物医学工程学学报,24(2),150(2005)) |
| [6] | ZHENG Yudong,WANG Yingjun,CHEN Xiaofeng,Characterization and properties of poly (vinyl alcohol)/hydroxylapatite hydrogels prepared by compound in situ with sol-gel method,Chemical Journal of Chinese Universities,26(9),1735(2005)(郑裕东,王迎军,陈晓峰,溶胶-凝胶法原位复合PVA/HA水凝胶的结构表征与性能研究,高等学校化学学报,20(9),1735(2005)) |
| [7] | H.Nanao,S.Hosokawa,S.Mori,Relation between molecular structure of gels and friction properties under low load in water,Japanese Society of Triblogists,46(12),968(2001) |
| [8] | J.K.Katta,M.S.Marcolongo,A.M.Lowrnan,Friction and wear characteristics of PVA/PVP hydrogels as synthetic articular cartilage,IEEE,4,142(2004) |
| [9] | SONG Ming,MA Huimin,HUANG Yuexian,An analysis of polyvinyl alcohol,Chemistry,9,27(1996)(宋明,马会民,黄月仙,聚乙烯醇分析,化学通报,9,27(1996)) |
| [10] | S.Mollazadeh,J.Javadpour,A.Khavandi,In situ synthesis and characterization of nano-size hydroxyapatite in poly (vinyl alcohol) matrix,Ceramics International,33(8),1579(2007) |
| [11] | Claire Richard,Ghislain Guyot,Agnes Rivaton,Olga Trubetskaya,Oleg Trubetskoj,Luciano Cavani and Claudio Ciavatta,Spectroscopic approach for elucidation of structural peculiarities of andisol soil humic acid fractionated by SEC-PAGE setup,Geoderma,142(1-2),210(2007) |
| [12] | Prajakta R.Patil,Satyawati S.,Joshi Polymerized organic-inorganic synthesis of nanocrystalline zinc oxide,Materials Chemistry and Physics,105(2-3),354(2007) |
| [13] | Elena Landi,Anna Tampieri,Giancarlo Celotti,Simone Sprio,Monica Sandri,Giandomenico Logroscino,Srsubstituted hydroxyapatites for osteoporotic bone replacement,Acta Biomaterialia,3(6),961(2007) |
| [14] | R.M.Trommer,L.A.Santos,C.P.Bergmann,Alternative technique for hydroxyapatite coatings,Surface and Coatings Technology,201(24),9587(2007) |
| [15] | LIU Mingzhu,CHENG Rongshi,QIAN Renyuan,Investigation of swelling property of Poly (vinyl alcohol) hydrogel,Acta Polymerica Sinica,2,234(1996)(柳明珠,程觇时,钱人元,聚乙烯醇水凝胶溶胀特性研究,高分子学报,2,234(1996)) |
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