The contact angle is not complicated, popular to say that the droplets in a semicircle shape solid surface naturally formed solid relative to the outer tangential plane. Contact angle is widely used, it can be said to involve around every detail, such as the automotive glass we hope the rain does not stick, but on the contrary we want to paint the car on a steel plate and never fall off. Other vegetables such as pesticides and foliar, coatings and internal and external walls, insulating oil and insulating materials, surface modification of nano-materials, etc., from the teaching and research, industrial and agricultural production and daily life abound. S1 series most widespread application, refers to the different selection of 100 × 100mm platform conventional case (also require slightly larger platform), retain a small amount of low-end models such as S1 manual section for research and teaching, such as Tsinghua University, Peking University, National Chiao Tung University , Chinese Academy of Sciences. High-end models such as the Z3 almost one-button automatic for production line workers operating in shifts completely to avoid human factors, such as Samsung Electronics, Amkor package, Philips, Foxconn, 3M and so on. See price list matching. If the university is generally recommended the most affordable on the line, but be careful to ask whether there are other heating needs, if you need an electric heating device should be selected. In addition, some special requirements such as making advancing angle, receding angle study, fiber contact angle, we can do according to user requirements. Sheng Ding S1 / S2 series contact angle / interfacial tension measuring instrument for measuring the contact angle of a liquid on a solid, liquid to solid ie wettability, Foreign Secretary also measure contact angle of the liquid. The instrument can measure the contact angle of various liquids on various materials, such as bulk materials, fibrous materials, textile materials, powder samples after tabletting can also be measured (Note 1). At the same time this series of instruments to measure and calculate the surface / interfacial tension (hanging drop method), the surface free energy. I produced the highest quality and integrity of the full range of contact angle measurement, pay attention to the following aspects when selection: measuring concave, convex contact angle measuring instrument, such as a hard glasses, contact lenses industry, glass brass wall, high temperature, The contact angle high pressure and other special industries (such as metallurgical industry requires high temperature contact angle). Price based on user needs as temperature, pressure, working environment. Note the high temperature and high-temperature vacuum different prices. Large platform (such as 52-inch LCD screen can not cut test, you need 1200 × 900mm platform), you need a special dedicated test platform and structure, generally two to understand customer demand for custom: a, platform size; b, the platform need to test points. (Required to test the platform section points or edges than required test platform for all points cheaper prices) to note the degree of understanding of user needs with features for testing the surface tension, the surface tension of the test method for incidental hanging drop method, classic, accurate However, the operator requires high (influenced by the operating level). If you need a different test batch testing table interfacial tension, it is recommended to use my company's automatic tension meter (rings hanging plate method method compatible); if the oil industry EOR need to measure ultra-low interfacial tension, suggested the use of my company's ultra-low interfacial tension meter (spinning drop method). Contact angle measuring instrument has instant freeze, automatic continuous photography, three kinds of shots the way high-speed photography, even volatile liquid can also ensure accurate measurement. Meanwhile, outside the influence of subjective factors tangent is the biggest problem, contact angle measurement of the geometric operations being done in software, the contact angle is no longer human judgment. Note 1: When testing the powder contact angle, if the sample can be tablet, we recommend using the following recommended tablet press. If the sample is not tablet, it is recommended to use my company's powder contact angle measurement. Learn to pay attention to the different users of the same liquid solid performance-based measure, the same or different solid liquid measuring performance based. If the liquid is relatively fixed, our standard knob sample peristaltic pump is very convenient smoothly. However, if the liquid changes often, difficult to clean or viscous liquids, or liquids with corrosive, recommended optional micro-injector or disposable injector and supporting fixture. When the contact angle measurements, the droplet size and the contact angle is no linear relationship between the amount of sample is 0.6 ~ 1.0ul best droplets too influenced by volatile large, the gravity factor drops too significant. Note that the test should not be free-falling droplets dripping on a solid surface, but should be increased sample platform, suspended after touching the lower end of the injector droplets fall, the droplets left on the solid surface. Of course, if you choose automatic model does not exist above the operating problem. Sheng Ding contact angle measurement http://www.dgshengding.com/ http://www.gdshengding.com/ 

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