| 蛭石精矿的有机改性试验 |
| |
| 引用本文： | 李雪梅,廖立兵,谷勤,李瑞,王春燕.蛭石精矿的有机改性试验[J].岩矿测试,2008,27(1):63-66. |
| |
| 作者姓名： | 李雪梅 廖立兵 谷勤 李瑞 王春燕 |
| |
| 作者单位： | 中国地质大学材料科学与工程学院,北京,100083 |
| |
| 摘 要： | 采用十六烷基三甲基溴化铵(HDTMAB)对蛭石精矿进行了有机改性,利用X射线衍射法(XRD)、红外光谱(IR)、差示扫描量热法(DSC)和热失重分析(TG)对蛭石精矿和有机改性蛭石进行了表征。实验结果表明,当反应液中蛭石与水的质量比为1∶10、反应温度在60~70℃时,HDTMAB的阳离子HDTMA进入绝大部分蛭石晶粒的晶层,将蛭石的晶层间距撑大,蛭石的(001)晶面间距d001从1.45986 nm增大到3.70134 nm。HDTMA进入了单晶颗粒之间,将蛭石颗粒分散成单晶颗粒。
|
| 关 键 词： | 蛭石精矿 十六烷基三甲基溴化铵 有机改性 |
| 文章编号： | 0254-5357（2008）01-0063-04 |
| 收稿时间： | 2007-07-08 |
| 修稿时间： | 2007-09-29 |
Experiments on the Organic Modification of Vermiculite Concentrate |
| |
| LI Xue-mei,LIAO Li-bing,GU Qin,LI Ri,WANG Chun-yan.Experiments on the Organic Modification of Vermiculite Concentrate[J].Rock and Mineral Analysis,2008,27(1):63-66. |
| |
| Authors: | LI Xue-mei LIAO Li-bing GU Qin LI Ri WANG Chun-yan |
| |
| Institution: | (School of Material Science and Technology,China University of Geosciences,Beijing 100083,China) |
| |
| Abstract: | The vermiculite concentrate is organic modified with hexadecyl trimethyl ammonium bromide(HDTMAB) and vermiculite and organo-vermiculite are characterized by X-ray diffraction spectrometry(XRD),infrared spectrometry(IR),differential scanning calorimetry(DSC) and gravitational thermal analysis(TG).The experimental results show that when the mass ratio of vermiculite to water is 1∶10 in reaction suspension and the reaction temperature is controlled at 60~70℃,HDTMA cations enter the interlayer gap of most vermiculite particle and enlarge the distance between the crystal layers of vermiculite(the distance of the(001) crystal plane of vermiculite increasing from 1.45986 nm to 3.70134 nm).HDTMA cations enter the gap between single crystal particles of vermiculite and separate the vermiculite particles into single crystal particles with nanometer size. |
| |
| Keywords: | vermiculite concentrate hexadecyl trimethyl ammonium bromide (HDTMAB) organic modification |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《岩矿测试》浏览原始摘要信息 |
| 点击此处可从《岩矿测试》下载免费的PDF全文 |
|
