Jieyang contact angle measurement, contact angle measurement instrument manufacturers, ShengDing equipment (certified merchants) are provided by Dongguan Sheng Ding Precision Instrument Co., Ltd .. Dongguan Sheng Ding Precision Instrument Co., Ltd. (www.gdshengding.com) is a specialist in the "contact angle measurement, tensile tester, drop angle detector, tables, interface equipment," the company. Since its inception, we adhere to the "honesty, sound management" approach, the courage to participate in healthy competition in the market, so that the "" brand has a good reputation. We adhere to the "service first, customers first" principle, so ShengDing instrument has won the trust of customers congregation in chemical instrumentation, and establish a good corporate image. Special Note: This information is for reference pictures and information, please contact us to obtain the most accurate information, thank you! The so-called contact angle is dropping a droplet on a solid horizontal plane, solid appearance on solid - liquid - gas three-phase bordering point, the gas - liquid interface and solid - liquid interface of two tangents when the liquid sandwiched therebetween the angle formed. Contact angle measuring instrument used to measure the primary liquid contact angle on a solid, namely liquid wettability of the solid, the instrument can measure a variety of liquid contact angle on a variety of materials. The instrument for petroleum, printing and dyeing, pharmaceutical, coating, dressing and other professional research and production has a very important role. When the droplets freely in space without field on the contact angle measuring instrument supplier, due to the presence of interfacial tension and cylindrical ball. However, when the droplet with a solid surface contact, which depends on the shape of the droplets, after all, the internal cohesion and adhesion to the relative size of droplets between the solids. When a droplet placed on a solid plane, the droplets can automatically start to shop in a solid appearance, or the appearance of a solid contact angle of droplets must exist. Interfacial tension meter according to the principle can be divided into two kinds: Platinum Circle law and platinum plate method. Platinum Circle method is a traditional test methods, from the invention to the present time about 70 years or so. It is made of platinum wire perimeter of a certain ring. Under the test first platinum loop immersed in the liquid mixture of two incompatible interfaces (or liquid) 2-3mm, then slowly lift up Platinum Circle, ring and liquid will form a film. Film on Platinum Circle will have a pull down force, the entire measurement process film mention the role of platinum loop ring values ??for the maximum force, and then converted into a real interface (surface) tension. History platinum plate method applied to 20 years in a foreign country does not enter the country even more late. Platinum plate method based on the surface interfacial tension meter technically demanding, difficult to manufacture large contact angle measurement instrument price, domestic users really been widely used in recent years, with automatic surface or domestic platinum plate method / interfacial tension meter R & D / and put into the market. Platinum plate method is 24mm × 10mm × 0.1mm platinum plate, the surface blasting roughening treatment, in order to better wetting of the liquid to be measured. When testing the platinum plate lightly touches the interface (or surface), the liquid surface tension effects will pull down the platinum plate contact angle measurement quotes, when the reverse surface tension of the liquid and other relevant forces and instrument testing When the force equilibrium is reached, the test value is steady, if distilled water, ethanol, a pure substance, the entire testing process fastest only a few seconds.