表征颗粒形貌的参数。形貌上越接近球的颗粒,其球形度越接近于1.
(6)球形度(Sphericity) 球形度定义为圆心都在区域重心的内切圆与外接圆的半径之比(实际为边界上到重心的 最短距离与最长距离之比),即 / i c S r r ...
基于60个网页-相关网页
...性 21 二、粒子形态(了解) 粒子形态(了解) 形状指数( 形状指数(shape index) ) 球形度( 球形度(degree of sphericity) ) 表示粒子接近球体的程度。 表示粒子接近球体的程度。
基于6个网页-相关网页
Firstly, membrane emulsification technology was combined with internal gelation process, making use of its ability of preparing uniform emulsion or microparticles under mild conditions. The small size and narrow distribution gelbeads with smooth surface and good sphericity were successfully obtained.
首先,利用膜乳化技术能够在温和条件下制备均匀乳化液滴或微粒的特点,将其与内部凝胶化过程结合,成功制备出表面光洁、球形度好、尺寸小且分布均匀的海藻酸钙凝胶珠。
参考来源 - 膜乳化内部凝胶化过程及海藻酸钙凝胶珠性能研究The experimental results show that the sphericity of crosslinking microsbeads CPGMA is excellent and various factors the above-mentioned can all influence the particle diameter. And the optimal condition for prepareing CPGMA microsbeads with diameter about 100μm is determined.
研究结果表明,通过控制各反应条件,可以制备出球形度极好、粒径可控的交联微球CPGMA,并确定了制备粒径在100μm左右的CPGMA微球的最佳条件。
参考来源 - 高性能胆红素吸附材料和表面印迹材料的制备与特性研究·2,447,543篇论文数据,部分数据来源于NoteExpress
论文其次研究了操作工艺、料浆固含量对微球粒径与球形度的影响。
The effects of slurry solid content and operation technology on the sphericity and average diameter of the microspheres were investigated.
结果表明:随母液固含量的降低,样品的粒径变小,粒径分布也更为均匀,但其球形度变差;
With the drop of concentration, the sphericity goes bad, particle size decreases and particle distribution becomes narrow.
结果表明:在一定雾化条件下,氦气雾化粉末具有最高的有效雾化率、良好的粒度分布,且球形度最好;
The results show that the free-lead solder powder is best in the efficient atomization efficiency, size distribution and degree of sphericity with helium as the atomizing medium.
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