Preparation of monodispersed cubic calcium carbonate particles via precipitation reaction

被引：114

作者：

Cheng, B

Lei, M

Yu, JG

Zhao, XJ

机构：

[1] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China

[2] Wuhan Univ Technol, Minist Educ, Key Lab Silicate Mat & Engn, Wuhan 430070, Peoples R China

来源：

MATERIALS LETTERS | 2004年 / 58卷 / 10期

基金：

中国国家自然科学基金;

关键词：

CaCO3; preparation; polyacrylic acid (PAA); temperature; cubic; monodispersed; composite;

D O I：

10.1016/j.matlet.2003.10.027

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Monodispersed cubic calcium carbonate composite particles were prepared by the precipitation reaction of sodium carbonate with calcium chloride in water in the presence of polyacrylic acid (PAA) at 60-80 degreesC, and then characterized with scanning electron microscopy (SEM), X-ray diffraction (XRD) and Differential Scanning Calorimetry-Thermogravimetry (DSC-TG). It was found from the above results that variations in the concentration of PAA and CaCO3, molar ratio of PAA to CaCO3, and pH and temperature of solution drastically changed the morphology of the as-produced CaCO3 particles, but all the products obtained consisted of calcite crystals. The optimal experimental conditions for the production of cubic calcite particles were determined. The amount of PAA in the cubic calcite composite particles was about 1.4%. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：1565 / 1570

页数：6

共 13 条

[1] Shape-controlled synthesis of colloidal platinum nanoparticles [J].