以无水氯化钙和尿素为原料、乙二醇-水为溶剂,在未加入其它有机大分子调控剂的条件下,采用低温溶剂热法制备出了尺寸均匀、形貌规整的凸透镜状碳酸钙,研究了Ca2+浓度和水洗陈化时间对碳酸钙形貌的影响;在水体系、乙醇-水体系及丙三醇-水体系中制备了碳酸钙,考察了醇类体系对碳酸钙形貌的影响;最后探讨了凸透镜状碳酸钙的形成机理.结果表明:凸透镜状碳酸钙的晶型主要为球霰石,并有部分方解石;醇类分子结构对碳酸钙的相结构、形貌起着关键性作用;增加Ca2+浓度会导致凸透镜状碳酸钙颗粒表面粗糙化;延长水洗陈化时间会使凸透镜状碳酸钙空心化,甚至造成颗粒溶解-重构.
参考文献
| [1] | CHENG Q;WU M;LI M et al.Uhratough artificial nacre based on conjugated cross-linked graphene oxide[J].ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,2013,52(13):3750-3755. |
| [2] | YAO H B;TAN Z H;FANG H Y et al.Artificial nacre-like bionanocomposite films with high performances:selgassembly of chitosan-montmorillonite hybrid building blocks[J].ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,2010,49(52):10127-10131. |
| [3] | 韩朋,井晓静,沈湘黔,闵春英,潘铁政.氧化石墨烯、短切碳纤维改性聚偏氟乙烯复合膜的摩擦磨损及介电性能[J].机械工程材料,2013(02):53-56,61. |
| [4] | 张海军,刘小萍,葛培林,梁柔,徐雪波,鲍明东.不同温度下多层结构TiCN/TiC/TiN镀层的摩擦学行为[J].机械工程材料,2012(01):41-44,57. |
| [5] | Jianfeng Wang;Qunfeng Cheng;Zhiyong Tang .Layered nanocomposites inspired by the structure and mechanical properties of nacre[J].Chemical Society Reviews,2012(3):1111-1129. |
| [6] | 肖宇鹏,赵旭,赵丽娜,吴晓霞,雷洪,任素霞,王子忱.以L-组氨酸为模板仿生合成针状纳米碳酸钙[J].高等学校化学学报,2009(03):530-533. |
| [7] | 刘炳杉,邹海峰,龚丽娜,吕蕾,郑克岩,盛野,石莹岩.微米级球形碳酸钙的合成与表征[J].吉林大学学报（理学版）,2013(04):715-719. |
| [8] | 齐利民,李洁,马季铭.醇-水混合溶剂中双亲水嵌段共聚物对CaCO3粒子形貌的调控[J].高等学校化学学报,2002(08):1595-1597. |
| [9] | Hua Tang;Jiaguo Yu;Xiufeng Zhao .Controlled Synthesis Of Crystalline Calcium Carbonate Aggregates With Unusual Morphologies Involving The Phase Transformation From Amorphous Calcium Carbonate[J].Materials Research Bulletin: An International Journal Reporting Research on Crystal Growth and Materials Preparation and Characterization,2009(4):831-835. |
| [10] | Huang, FZ;Shen, YH;Xie, AJ;Zhang, XZ;Cai, Y;Wu, WT .Controlled deposition and transformation of amorphous calcium carbonate thin films[J].Crystal Research and Technology: Journal of Experimental and Industrial Crystallography,2009(8):818-822. |
| [11] | 崔洪梅,刘宏,王继扬,李霞,韩峰.纳米粉体的团聚与分散[J].机械工程材料,2004(08):38-41. |
| [12] | RAO M S .Kinetics and mechanism of the transformation of vaterite to calcite[J].Bulletin of the Chemical Society of Japan,1973,46:1414-1417. |
| [13] | MANOLI F;DALAS E .Spontaneous precipitation of calci um carbonate in the presence of ethanol,isopropanol and di ethylene glycol[J].Journal of Crystal Growth,2000,218(02):359-364. |
| [14] | LENG B;JIANG F;LU K et al.Growth of calcium carbonate mediated by slowly released alginate[J].Cryst Eng Comm,2010,12(03):730-736. |
| [15] | Sarkar, A.;Mahapatra, S. .Synthesis of all crystalline phases of anhydrous calcium carbonate[J].Crystal growth & design,2010(5):2129-2135. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%