期刊
CRYSTAL RESEARCH AND TECHNOLOGY
卷 46, 期 10, 页码 1071-1078出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/crat.201100261
关键词
calcium carbonate; cellulose; mineralization; morphology; polymorph; fiber
资金
- National Natural Science Foundation of China [50873082, 50903067]
- Scientific and Technical Project of Fujian Province of China [2009J1009, 2010H6021, 2010J01306]
- Special Program for Key Research of Chinese National Basic Research Program [2011CB612303]
- Science and Technology Project of Zhejiang Province of China [2009C31084]
Gel-forming fibers (GF fibers) can serve as nucleation sites to prepare calcium carbonate (CaCO3) because they can adsorb large amounts of Ca2+ due to their porous structure. In this paper, mineralization behavior of CaCO3 on GF fibers in ethanol-water mixed solvents without any additives has been investigated. The results showed that some crystals covered the fibers, while others were embedded in fibers. Twin-sphere based vaterite, zonary and rodlike calcite with large aspect ratio could be prepared successfully. The effect of ethanol content inside GF fibers, concentration of Ca2+ and CO32-, mineralization time, miscibility between alcohol and water, and temperature were studied. Lastly, a possible mineralization mode was suggested. This work could provide a new method to prepare inorganic/polymer hybrid materials. (C) 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
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