| 引用本文: | 张永民, 任建敏
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, 刘高源, 赵子龙.改性膨润土的制备与表征(J/M/D/N,J:杂志，M：书，D：论文，N：报纸).期刊名称,2009，（3）：286-290 |
| CHEN X. Adap tive slidingmode contr ol for discrete2ti me multi2inputmulti2 out put systems[ J ]. Aut omatica, 2006, 42(6): 4272-435 |
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| 摘要: |
| 摘 要:为了提高膨润土的层间距和疏水性,用十六烷基三甲基溴化铵(CTMAB)对膨润土进行了改性,
并用X 射线衍射(XRD) 、红外光谱( FTIR)技术和热分析(DSC)对改性土进行了结构表征,结果表明:改性
后,膨润土的底面层间距由1. 244 3 nm增加到1. 996 8 nm;改性土在2 912 cm- 1和2 840 cm- 1附近出现了明
显的甲基、亚甲基和次甲基的对称和不对称伸缩振动吸收峰,在1 498 cm- 1附近出现了N+ - CH3 中C - H
对称弯曲吸收峰;改性膨润土在300 |
| 关键词: 关键词:膨润土 CTMAB 改性 表征 |
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| Preparation and characterization of the modified bentonite |
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ZHANG Yong2m in, REN Jian2m in, L IU Gao2yuan, ZHAO Zi2long
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| Abstract: |
| Abstract: Bentonite ismodified with cetyltrimethylammonium bromide (CTMAB) to imp rove interlayer space
and the hydrophobic of Bentonite. The modified bentonite was characterized by XRD, IR and DSC techniques. The
results show that the basal spacing values of the modified Bentonite is increased from 1. 2443 nm to 1. 9968nm; The
symmetrical and dissymmetrical stretching peaks of cymene,methylene and hypocymene are p resent at 2912 cm- 1
and 2840 cm- 1 , and the C2H symmetrical bending peak comes out at 1498 cm- 1 in the FTIR spectra of the modified
Bentonite; The endothermic peaks in the region 300 - 600 ℃ are attributed to the stepwise removal of interlayer
CTMAB of the modified Bentonite. So the cetyltrimethylammonium bromide has been intercalated into the layers of
Bentonite, and its character is steady at normal temperature. |
| Key words: Key words: bentonite CTMAB modification characterization |
