Who Reall Uses Membrane Pore Size Analyzers?

Fully automatic membrane pore size analyzerIt is suitable for analyzing the pore size distribution of various microfiltration materials. The test process is fully automatic and intelligent, and can accurately measure bubble point pressure, maximum pore size, average pore size, most likely pore size, gas flux, gas permeability, pore size distribution, ETC.

 

Who Reall Uses Membrane Pore Size Analyzers?

The Fully automatic membrane pore size analyzerIt based on the gas-liquid discharge method is more suitable for measuring 80nm to 300μm pores; the Fully automatic membrane pore size analyzerIt based on the liquid-liquid discharge method is more suitable for measuring 5nm to 200μm pores. One concern is the measured pressure of the sample. Regardless of the measurement method, increasing the measurement pressure of the sample allows the detection of smaller apertures. However, too much pressure can bring a series of problems. First of all, some hollow fiber and tubular organic membrane samples cannot withstand too high pressure at all, generally no more than 5 kg; secondly, high pressure measurement may also bring difficulties to the sealing of samples, because samples often have to be squeezed vigorously to seal well ; Thirdly, most of the organic membrane samples may deform or even close the pores under high pressure, which makes the measurement results meaningless. Therefore, it is best to use the liquid-liquid discharge method for small-pore samples, while the gas-liquid discharge method can only be used for large-pore samples.

 

The new Fully automatic membrane pore size analyzerIt combines the two methods to easily measure a wide range of pore sizes without the need for high pressure, extending the instrument's range of use. In addition, the "pore diameter" measured by conventional instruments refers to the size of the thinnest part (or "pore throat") in the pore channel, while the PSDA series instrument also integrates a patented technology for measuring the diameter of surface pores, that is, it can measure the sample surface pore size distribution. In this way, the pore structure information of the filter material can be detected by comparing the pore size distribution of the pore throat and the orifice, which is helpful to study the filtration performance of the filter material. The preparation of many advanced filtration membranes requires multiple coatings. The surface pore size of the material directly affects the coating effect. Therefore, the measurement of the pore size is very important to control and improve the coating quality.

 

Shanghai Standard Group is a world-renowned manufacturer of Fully automatic membrane pore size analyzerIt. Our customers are all over the world and have a good reputation. Welcome to order!