以富含胺基的阳离子聚合物聚乙烯亚胺(PEI)为碳酸钙生长的矿化调节剂,采用气体扩散的方法,研究了不同PEI浓度以及不同矿化时间对碳酸钙形貌和晶型的影响.分别采用扫描电子显微镜(SEM)、X射线粉末衍射(XRD)、傅里叶红外光谱(FT-IR)等实验手段对所得的样品进行了表征.结果表明,在较低的聚乙烯亚胺浓度下获得空心球状的球霰石和方解石,在较高浓度下,为方解石的聚集体,并随着矿化时间的延长,方解石的形貌趋于规则.
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