caa a22 4500 463232984 CHVBK 20180405153248.0 cr unu---uuuuu 170326e20070701xx s 000 0 eng 10.1007/s10853-006-1264-4 doi (NATIONALLICENCE)springer-10.1007/s10853-006-1264-4 Mechanical properties of nanohydroxyapatite reinforced poly(vinyl alcohol) gel composites as biomaterial [Elektronische Daten] [Pan Yusong, Xiong Dangsheng, Chen Xiaolin] Nanohydroxyapatite reinforced poly(vinyl alcohol) gel (nano-HA/PVA gel) composites has been proposed as a promising biomaterial, especially used as an articular cartilage repair biomaterial. In this paper, nano-HA/PVA gel composites were prepared from mixing nano-HA particles modified by silicon coupling agent, with physiological saline solution (PSS) of PVA by freezing-thawing method. The effects of various factors on the mechanical properties of nano-HA/PVA gel composites were evaluated. It was shown that the mechanical behavior of nano-HA/PVA gel composites was similar to that of natural articular cartilage, which held special viscoelastic characteristics. The tensile strength and tensile modulus of the composites improved correspondingly with the increase of freezing-thawing times and concentration of PVA solution. The more concentration of PVA solution, the higher influence degree of concentration on the tensile strength of composites is. The tensile strength and tensile modulus of nano-HA/PVA hydrogel composites increased first and then decreased with the rising nano-HA content of the composites. The tensile modulus of the composites improved remarkably with the increase of elongation ratio. Springer Science+Business Media, LLC, 2007 Yusong Pan Department of Material Science & Engineering, Nan Jing University of Science and Technology, No. 200, Xiaolingwei Street, 210094, Nanjing, Jiangsu, China aut Dangsheng Xiong Department of Material Science & Engineering, Nan Jing University of Science and Technology, No. 200, Xiaolingwei Street, 210094, Nanjing, Jiangsu, China aut Xiaolin Chen Department of Material Science & Engineering, Nan Jing University of Science and Technology, No. 200, Xiaolingwei Street, 210094, Nanjing, Jiangsu, China aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/13(2007-07-01), 5129-5134 0022-2461 42:13<5129 2007 42 10853 https://doi.org/10.1007/s10853-006-1264-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-1264-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Yusong Pan Department of Material Science & Engineering, Nan Jing University of Science and Technology, No. 200, Xiaolingwei Street, 210094, Nanjing, Jiangsu, China aut NATIONALLICENCE 700 1- Dangsheng Xiong Department of Material Science & Engineering, Nan Jing University of Science and Technology, No. 200, Xiaolingwei Street, 210094, Nanjing, Jiangsu, China aut NATIONALLICENCE 700 1- Xiaolin Chen Department of Material Science & Engineering, Nan Jing University of Science and Technology, No. 200, Xiaolingwei Street, 210094, Nanjing, Jiangsu, China aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/13(2007-07-01), 5129-5134 0022-2461 42:13<5129 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer