| 棕榈酸改性纳米碳酸钙的工艺研究 |
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| 引用本文： | 陈先勇,史伯安,唐琴,周贵云.棕榈酸改性纳米碳酸钙的工艺研究[J].化学与生物工程,2005,22(5):21-23. |
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| 作者姓名： | 陈先勇 史伯安 唐琴 周贵云 |
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| 作者单位： | 1. 湖北民族学院化学与环境工程学院,湖北,恩施,445000
2. 四川大学化工学院,四川,成都,610065 |
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| 基金项目： | 湖北省教育厅重点研究项目(2002A08007) |
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| 摘 要： | 采用从漆蜡中提取的棕榈酸作为表面改性剂,以活化度作为改性效果主要评价指标,对纳米碳酸钙粉体进行表面改性处理,确定了最佳改性工艺条件。对改性前后碳酸钙粉体的接触角、吸油率、石蜡糊粘度、粒度分布、分散性等性能进行了比较。结果表明,经棕榈酸表面改性处理后的纳米碳酸钙粒度分布均匀,分散性、亲油性好。
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| 关 键 词： | 棕榈酸 纳米碳酸钙 表面改性 活化度 分散性 |
| 文章编号： | 1672-5425(2005)05-0020-03 |
| 修稿时间： | 2005年1月31日 |
Study on Surface Modification of Nanometer Calcium Carbonate by Palmic Acid |
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| CHEN Xian-yong,SHI Bo-an,Tang Qin,ZHOU Gui-yun.Study on Surface Modification of Nanometer Calcium Carbonate by Palmic Acid[J].Chemistry & Bioengineering,2005,22(5):21-23. |
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| Authors: | CHEN Xian-yong SHI Bo-an Tang Qin ZHOU Gui-yun |
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| Affiliation: | CHEN Xian-yong~ |
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| Abstract: | The palmic acid extracting from lacquer wax was used as modifier of nanometer calcium carbonate, and the optimum condition of modification was obtained by using the activation grade as main judgement criteria. The value of oil absorption, viscosity of Nujol mull, specific surface area, contact angle, distribution of particle size and dispersivity of the calcium carbonate particles were also characterized. The results showed that the modified nanometer calcium carbonate particles were narrow size distribution , high dispersivity and oil affinity. |
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| Keywords: | palmic acid nano-CaCO_(3) surface modification activation grade dispersivity |
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