Lianjiang contact angle measurement, ShengDing instruments, the contact angle measuring instrument where the good provided by the Dongguan City 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 in the congregation dedicated 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 contact angle is not complicated, popular to say that the droplets in the semi-solid surface morphology of the natural formation of the solid relative to the outer tangent plane. Contact angle is widely used, it can be said around every detail related to the contact angle measurement instrument price, for example, we want to rain on automotive glass does not stick, but on the contrary we want to paint on the car plate 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 teaching and research, industrial and agricultural production and daily life, the list goes on. Measures related to measuring the contact angle in front of the analyzer were introduced, should pay attention to the following two questions about the implementation: Balancing time and system temperature stability, when the system is not balanced, the contact angle will change the contact angle measurement instrument manufacturers, which The contact angle is referred to as a dynamic contact angle of the contact angle measurement, dynamic contact angle of a liquid on a large number of research activities in the viscosity of the solid planar or spreading are important (due to viscosity, the time length of the balance). Together, the temperature change on larger systems, because of changes in surface tension, contact angle will change, therefore, if one has Kipping up balanced system, the contact angle change can be related to changes in temperature, briefly determine the impact factors approach is to affect the balance of the time is usually in one direction, and the temperature fluctuations can be formed to increase or decrease γ. In addition to balancing time and temperature, the effects of exposure to the elements as well as the angle stable contact angle hysteresis and adsorption. Principle sedimentation sedimentation method (sedimentation size analysis) is based on the particles in suspension system, the particles themselves neutral (or suffered centrifugal force), suffered three buoyancy and viscous drag balance, and viscous forces obey the principle of Stokes to implement determination, in which case the particles in the suspension system at a constant velocity sedimentation and settling velocity is proportional to the square of the particle size. Notably, only to meet the following conditions in order to measure the particle size using the sedimentation method; particle should be close to spherical shape wanted, and the liquid was completely wetted; settling velocity of the particles in the suspension system is the slow and constant, and the speed reaches a constant Time is short; the particles in the suspension system of the Brownian motion does not interfere with its sedimentation rate; the interaction between the particles does not affect the settlement process. Determination of the particle size of the precipitation method into gravity settling into gravity settling and centrifugation two sedimentation, gravity sedimentation particle size of 2 to 100 is adapted to ?? m particles, and a centrifugal sedimentation method is suitable particle size of 10 ?? m ~ 20 ?? m particles. Due to centrifugal particle analyzer using Stokes theory, so the resulting analysis is an equivalent particle size distribution for the autumn equivalent weight average particle size distribution. Generally suitable for high-speed centrifugal sedimentation particle size analysis of materials Nali. The method is now more accepted extinction sedimentation method, due to the different particle size in the suspension system of settling velocity is different, the same depth particle settling time is different, so that the density at different depths in the suspension will exhibit different changes According to the measuring beam through the optical density of the suspension system can calculate the particle size distribution. The advantage is to measure the mass distribution. The advantage is a measure of the mass distribution, representation and strong, contrasting with the instrument test results good contact angle measuring instrument, the price is relatively cheap. The disadvantage of small particles for the test speed is slow, poor reproducibility; non-spherical particles in the error, it is not suitable for the mixed material, the dynamic range is narrower than the laser diffraction method.