采用单因素分析方法，考察苯甲酸用量、分散剂用量、反应时间等因素对苯甲酸有机膨润土有机物含量的影响。
In the experiment, single-factor analysis was adopted and the influence of the amount of benzoic acid and solvent and the reaction time on the organic con- tent in bentonite was studied.
此外，在催化剂制备中添加的分散剂以及催化剂的制备方法也对单壁碳管的产量影响很大。
Moreover, the additives that introduced during the catalyst preparation also have great effects on the yield and quality of the SWNTs.
淀粉丁二酸单酯用作水泥分散剂时，其分散机理也主要来自空间位阻作用，且较长的极性侧链对空间位阻效应具有一定的贡献。
The dispersing ability of SSHE as cement dispersant also came from steric hindrance effect and long side chain contributed to steric hindrance in a certain degree.
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