文献类型：期刊文献

英文题名：Synthesis of CaO-P2O5-SiO2 monolithic with double pore structure by peg/starch

作者：Yang, Hong-Bin[1]; Chen, Qi[1]; Song, Li[1]; Li, Hui-Ping[1]; Lu, Jian-Ying[1]; Zhang, Wu-Zhi[1]

机构：[1] Department of Inorganic Materials, East China University of Science and Technology, Shanghai 200237, China

年份：2007

卷号：330-332 II

起止页码：979

外文期刊名：Key Engineering Materials

收录：EI(收录号：20070410386452)

语种：英文

外文关键词：Body fluids - Hydroxyapatite - Microstructure - Polyethylene glycols - Pore size - Sol-gels - Starch

摘要：Porous CaO-P2O5-SiO2 monolithics with double-pore structure were prepared from tetraethoxysilane, triethylephosphate and calcium nitrate by a sol-gel method. Polyethylene glycol and starch were used as mesopore-making agent and as macropore-making agent, respectively. The porous monolithics, having mesopores with ～20 nm pore size and macropores with 7-20 μm pore size, could be formed from the removal of organic components after heated at 600°C for 2 hours. After soaked in simulated body fluid (SBF) at 37°C for 7 days, bonelike apatite was formed on the surface of the samples. The porous samples were degraded gradually in SBF solution.