| 透明型白碳黑粉体比表面积的测定和计算 |
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| 引用本文： | 周广宇,简淼夫.透明型白碳黑粉体比表面积的测定和计算[J].哈尔滨师范大学自然科学学报,2006,22(2):65-67. |
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| 作者姓名： | 周广宇 简淼夫 |
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| 作者单位： | 南京工业大学工程测试研究所;南京工业大学工程测试研究所 |
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| 摘 要： | 本文系统的讨论了用ST-03型表面与孔径测定仪测定透明型白碳黑比表面积．基于白碳黑粉体在低温和气体饱和蒸气压范围内的多分子吸附平衡,依据BET多层吸附原理,采用流动色谱法测定白碳黑对氮气的吸附量．利用图解法确定工作曲线的斜率和截距,测定其样品的比表面积．由BET吸附公式计算出透明型白碳黑的比表面积为315．64 m2／g．
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| 关 键 词： | 白碳黑粉体 比表面积 BET 吸附法 |
| 收稿时间： | 2005-12-11 |
| 修稿时间： | 2005年12月11 |
SPECIFIC SURFACE AREA MEASUREMENT AND CALCULATION OF CRYSTAL TYPE OF SILICON DIOXIDE POWDER |
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| Zhou Guangyu,Jian Miaofu.SPECIFIC SURFACE AREA MEASUREMENT AND CALCULATION OF CRYSTAL TYPE OF SILICON DIOXIDE POWDER[J].Natural Science Journal of Harbin Normal University,2006,22(2):65-67. |
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| Authors: | Zhou Guangyu Jian Miaofu |
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| Abstract: | Measuring the specific surface area of Silicon Dioxide powder by the ST - 03 type of apparatus is systemized by this article. According to BET multiply absorption theory, the method of flow chromatography is adopted to measure the absorption capacity of the powders in low temperature and gas saturation vapor tension range, then the area of measured sample is calculated according to pressure variation and fitting parameters from the BET equation to be 315. 64 m Vg. |
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| Keywords: | Silicon Dioxide powder Specific surface area BET Absorption |
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