Three different contact angle equations for hydrophobic coatings were introduced from the point of wetting theoretical model of solid surface. 疏水涂料已广泛应用于现代工业中的诸多方面。
An apparatus was designed for measuring water contact angle of polypropylene fiber with an exact balance according to wetting force principle. 对丙纶的接触角进行了测量,并对纤维长度、入水深度和平衡时间等对接触角的影响进行了重点研究。
When a liquid droplet is set on a smooth solid horizontal surface, it may spread out over substrate and the contact angle will approach zero if complete wetting takes place. 当液滴是建立在坚实光滑水平面上,它可能分布在衬底和接触角将接近零,如果完全润湿发生。
Study on Contact Angles of PP Fibers by Wetting Balance Method 润湿天平法测量纤维接触角的研究
Study on the Angle of Contact and the Wetting of Salicylic Acid in the Measuring Solution Methanol-Water System 水杨酸在甲醇-水测定体系的接触角和润湿性能研究
Transport rates of three liquids, water, oleic acid and paraffin liquid, in various fabrics have been measured. Wetting parameters, contact angles, adhesion work and wetting work have been estimated by washburn's equation and Young& Dupre's equation. 测定了油酸、液体石腊在各种织物上的迁移速度、并利用Washburn方程和young&Dupre方程计算了接触角、粘附功、润湿功等相应润湿参数。
Condensing Gas-fired Boiler with Direct Contact Heat Transfer Based on Air Wetting 基于空气加湿的直接接触换热冷凝式燃气锅炉
Research on treatment about landfill leachate by ABR-biological contact oxidation and wetting catalytic oxidize ABR-接触氧化-化学氧化组合工艺处理垃圾渗滤液方法研究
Very clearly, the dynamic contact angle θ_D, an important parameter describing wetting, is mainly dependent upon the moving velocity of contact line, properties of fluids and solid surface, and surface roughness. 湿润动力学的实验研究表明:动态接触角与接触线移动速度、液体物性、固体衬底物性和表面性质等诸多因素相关。
When the hysteresis happens, the contact and wetting properties become complicated, of which mechanism, in particular a thermodynamically based explanation, is yet not fully clear by now. 这时,接触角与表面润湿性的关系变得复杂,其物理机制,特别是如何用热力学原理来解释它,至今都没有澄清。
A hydrophobic index and the relative contact angle in the hydrophobic and wetting experiments were employed to evaluating modification results. The relative contact angle of the aqueous solution on the silica gel powder has been obtained by modified Washburn method. 用改进的Washburn方法测定16-2-16水溶液在硅胶粉末表面的接触角,并进一步讨论了16-2-16在硅胶表面的吸附引起的润湿性变化。
A dustproof method, adding dust-sticking bar to infusion, was studied. This method can reduce contact angle and shorten wetting time. 研究了煤层注水中添加粘尘棒溶液降低接触角、缩短接触润湿时间的除尘方法。
Characterized the surface wettability use the contact angles, which is a parameter describing fiber wetting ability or wetting degree. 利用接触角表征水凝胶纤维的润湿能力或者润湿程度。
This paper illustrates the importance of correctly determining the apparent contact angle ( a parameter that quantifies the wetting of the substrate which is governed by the surface free energy and the geometrical structure of the substrates) for predicting the maximum spreading of the splat. 详细阐述了表观接触角(衡量基体润湿性的一个参数,基体润湿性主要与其表面自由能和表面几何结构有关)对铺展系数的影响。
The water contact angle, the wetting time and the oil repellence grade of the treated fabric have been measured to characterize water and oil repellence of the sample. The limiting oxygen index and thermogravimetic ( TG) are used to characterize the fire performance of the fabric. 利用接触角、水的润湿时间和拒油等级表征了织物的拒水、拒油性能;利用用极限氧指数、热失重等分析等离子体处理后织物的阻燃性能。
With the increasing of the product concentration, the contact angle of the hydrophobic surface and the hydrophilic surface were reduced. the hydrophilic surface was more hydrophilic, the hydrophobic surface became hydrophilic by wetting reversal. 采用量高法测定了羧酸盐的润湿性能,随着产品浓度的增加,亲油表面和亲水表面的接触角均减小,使亲水表面更加亲水,亲油表面发生润湿反转变成亲水表面。