PAAM基质对CaCO_(3)结晶的调控  

Study on the Control of CaCO_(3) Crystallization by PAAM Matrix

作　　者：方亮[1] 余德龙[2] FANG Liang;YU Delong(Department of Agriculture,Forestry and Clothing,Anqing Vocational and Technical College,Anqing 246003,China;Department of CIvil Engineering,Anqing Vocational and Technical College,Anqing 246003,China)

机构地区：[1]安庆职业技术学院农林与服装学院,安徽安庆246003 [2]安庆职业技术学院建筑工程学院,安徽安庆246003

出　　处：《新乡学院学报》2021年第3期20-23,共4页Journal of Xinxiang University

基　　金：2020年安徽省教育厅质量工程项目(2020jyxm1130);2018年安徽省教育厅自然科学研究重点项目(KJ2018A0895)。

摘　　要：根据生物矿化原理,以PAAM(聚丙烯酰胺)为基质,仿生合成碳酸钙晶体,并讨论PAAM浓度、反应时间、pH值、温度和碳酸钙浓度等对产物晶型及形貌的影响。采用扫描电子显微镜(SEM)、X射线粉末衍射仪(XRD)、红外吸收光谱分析(FT-IR)等手段对所得产物进行表征。实验合成了各种各样形貌的碳酸钙晶体,比如菱形体、层形、杆状等,随着CaCO_(3)浓度的增加,杆状晶体更容易获得。According to the principle of biomineralization,we used PAAM(polyacrylamide)as the matrix to biomimize the synthesis of calcium carbonate crystals.In addition,the effects of reaction time,pH,temperature,PAAM concentration and calcium carbonate concentration on the crystal form and morphology of the product are discussed.The obtained product was characterized by scanning electron microscope(SEM),X-ray powder diffractometer(XRD),infrared absorption spectroscopy(FT-IR)and other means.We have synthesized calcium carbonate crystals with various morphologies,such as rhomboid,layered,rod-shaped,and others.We found that the rod-shaped crystals are easier to be synthesized with the increasing concentration of CaCO3.

关 键 词：碳酸钙 聚丙烯酰胺 晶体形貌 生物矿化 

分 类 号：Q617[生物学—生物物理学]