| 颗粒肥料比表面积快速测定法在控释肥料研制中的应用 |
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| 引用本文： | 戴建军,樊小林,喻建刚.颗粒肥料比表面积快速测定法在控释肥料研制中的应用[J].中国现代应用药学,2006(1):67-68. |
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| 作者姓名： | 戴建军 樊小林 喻建刚 |
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| 作者单位： | 华南农业大学资环学院 广东广州510642 |
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| 基金项目： | 国家自然科学基金(30270769,39870433)，广东省科技厅国际科技合作项目(50406,2004B50201015)，广东省教育厅“千百十工程”优秀人才培养基金(Q02070)资助 |
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| 摘 要： | 推荐一种快速测定颗粒肥料比表面积的方法。首先用排体积法测定一定量的颗粒肥料所排开液体质量,再根据这种液体的密度计算其体积,然后假设肥料颗粒为球体,根据肥料体积及其百粒质量可以计算出单粒肥料的平均半径。最后按照球体表面积公式计算肥料的比表面积。这一比表面积的测定方法可以方便地应用于控释肥料研制过程计算包膜的厚度和膜材的用量。
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| 关 键 词： | 颗粒肥料 测定比表面积 排体积法 |
| 修稿时间： | 9/6/2005 12:00:00 AM |
Application of rapid determination method for specific surface area of granulated fertilizer in study on controlled release fertilizer |
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| DAI Jianjun,FAN Xiaolin,YU Jiangang.Application of rapid determination method for specific surface area of granulated fertilizer in study on controlled release fertilizer[J].The Chinese Journal of Modern Applied Pharmacy,2006(1):67-68. |
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| Authors: | DAI Jianjun FAN Xiaolin YU Jiangang |
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| Abstract: | A rapid determination method for specific area of granulated fertilizer is recommended.The mass of liquid discharged from a certain volume of granulated fertilizer is determined,then its volume calculated out according to the liquid density.Supposed the fertilizer particle is a spheroid,the average radius of single fertilizer grain can be calculated out according to the fertilizer volume and the mass of one hundred particles.Finally the fertilizer specific surface area is obtained according to spheroid surface area formula finally. |
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| Keywords: | granulated fertilizer specific surface area the method of discharging volume |
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