Developed according to GB/T9267-2008 standard. At the same time, it meets the test requirements of GB/T 11175-2002. It is used to determine the minimum film-forming temperature of polymer emulsions and interface treatment agents. When polymer emulsions are used as surface treatment agents for coatings, adhesives, chemical fiber fabrics, leather and paper, their film-forming properties are one of the most important properties. . Using multi-channel inspection digital display, the temperature control data is accurate, and the calibration is convenient. Fully automatic measurement, no human error, simple, accurate, fast and convenient. It can simply, intuitively and accurately determine the minimum film-forming temperature of polymer emulsion.
A cooling source and a heating source are respectively set on a suitable metal plate, and kept at the constant temperature point of the set temperature, and different temperature gradients are generated on the metal plate through the principle of metal heat conduction. A uniform thickness of sample is coated on the temperature gradient plate, and the sample is subjected to the temperature on the gradient plate to evaporate water to form a film. Due to the different temperatures on the gradient plate, the phenomenon of film formation on the sample is also different. The part where the dividing line is found is the MFT temperature of the sample.