尿素水解法制备晶须碳酸钙  

Preparation of Aragonite Whiskers with Urea Hydrolytic Method

作　　者：许兢[1] 陈庆华[1] 钱庆荣[1] 

机构地区：[1]福建师范大学化学与材料学院,福州350007

出　　处：《Chinese Journal of Structural Chemistry》2003年第2期233-237,共5页结构化学（英文）

基　　金：十五国家重点科技攻关计划(2002BA323C)

摘　　要：采用尿素水解法合成了晶须碳酸钙,研究了原料配比、反应时间等合成条件对晶须产率的影响,采用SEM、TG和X-射线衍射技术等方法对晶须进行了表征。结果表明,本方法体系简单,条件易于控制,且随尿素比例的增加、反应时间的延长,晶须的产率得以提高。In this paper, aragonite whiskers were prepared with urea hydrolytic method, and characterized by SEM, TG and XRD. The influence of the ratio of raw materials and reaction time on productivity was also investigated. The results show that in this simple system, the conditions can be well controlled, and the productivity can be increased when increasing the ratio of (NH2)(2)CO or reaction time.

关 键 词：制备 尿素水解法 晶须 碳酸钙 性能 

分 类 号：O784[理学—晶体学]