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- This paper proposes a physical model of the process from the fractal dimensions, and points out that the particle surface energy decides the fractal dimensions of floccules after colliding. 在实验研究的基础上,进一步指出:在药剂加入的初始阶段,其流体剪切力方式极其重要,控制其流体剪切力方式,就能最大程度降低颗粒的表面能,得到较高分形维数的絮体。
- Keywords ffective collision;fractal dimension;fluid shear force;particle surface energy;floccule structure;physical model; 有效碰撞;分形维数;流体剪切力;颗粒表面能;絮体结构;物理模型;
- particle surface energy 颗粒表面能
- The changing rule of surface energy with the particle size of HMX was analyzed,and the basic condition which ultrafine HMX could be coated by bonder was studied. 分析了HMX随粒径变化时其表面能的变化规律和黏结剂包覆超细HMX表面能的基本要求。
- The surface energy can be inferred from the observations fairly accurately. 表面自由能可以从观测中相当准确地推算出来。
- The wettability of particle surface was found tobe related directly to the stability of bothe aqueous and nonaqueous suspensions. 质点表面的润湿性与其水相和非水相悬浮液的稳定性有直接的对应关系。
- Meanwhile, modifying the surface of the alumina particle before grinding can reduce the particle's surface energy and prevent the fine particles from aggregating. 同时,在氧化铝粉碎前添加了表面分散剂之后,降低了颗粒的表面能,防止了粉碎后颗粒的再团聚,改善了粉碎的效果。
- The surface energy of mica cleaved in vacuum is about ten times that of mica cleaved in air. 在真空中剖开的云母的表面能比在空气中剖开的云母的表面能大十倍左右。
- Interannual and Seasonal Variability of the Surface Energy Balance and Temperature of Central Great Slave Lake. 湖中部表面能量平衡和温度的年际和季节变率。
- Floc properties may be described by properties as floc strength, specific surface area, surface potential and surface energy. 絮凝物可以通过絮凝物强度,具体表面,表面潜力和表面能量来描述。
- When the surface energy of the sample is relatively even, the DFT method is a good choice. 表征材料表面能量均匀的样品可首先考虑采用DFT法;
- This film also can be used on some low surface energy materials (such as Formica) commonly used in air showers. 此膜也可用于任何表面张力比较低的介质(如福美加板)区域,尤其适用于空气喷淋室的墙面。
- The surface energy of DLC films is dependent on the carbon bonds and surface roughness. DLC薄膜表面能高低取决于表面碳碳键与粗糙度的变化.
- The low surface energy of polymer-based substrates often leads to poor adhesion of inks, glues and coatings. 在低表面能的聚合物为基础的基板往往导致贫困的粘附油墨,胶水和涂料。
- A Study of the Antarctic Surface Energy Budget Using a Polar Regional Atmospheric Model Forced with Satellite-Derived Cloud Properties. 用从卫星获得的云特征驱动的极地区域大气模式研究南极地表能量收支。
- Improvement of particle surface activity 颗粒表面活性改良
- The nanomaterials as catalysts have high ratio surface area and high surface energy, showing much higher catalytic activity than traditional catalysts. 摘要纳米尺度的催化剂具有高的比表面积和表面能,其催化活性显著高于传统催化剂。
- Photo polymerization of acrylamide (AAM) onto CaCO_3 particle surfaces and its structure were studied by polymerization effectiveness, electron spectra for chemical analysis (ESCA), scanning electron microscopy (SEM) and particle size measurements. 采用表面光聚合技术处理CaCO3 粉末 ;研究了反应温度、时间、单体浓度等对丙烯酰胺 (AAM )在CaCO3 粉末表面光聚合的影响 ;并采用X光电子能谱 (ESCA)、粒度分析、扫描电子显微镜 (SEM )和模型模拟分析等研究了表面光聚合处理碳酸钙 (CaCO3 )的结构 .
- We also analyzed if alkyl thiol compound was deposited on particles surface by ESCA. 而藉由ESCA观察镀银微粒经硫醇修饰后,硫醇是否会长在其表面上。
- A review was given on the recent progress in the study of antifouling coatings with low surface energy (organosilicon system and fluoride system). 摘要低表面能防污涂料(有机硅系列和氟化物系列)因具有独特的性能而在许多领域得到广泛应用。
