Polyester needled felt is made by hot air molding and other treatment methods. It has dimensional stability, high strength, large elongation, good elastic recovery, so wear and folding resistance is very good: good performance at room temperature, can Continuously working at 130 °C, instantaneously up to 150 °C, is the most cost-effective dust collection medium in low temperature conditions. However, polyester (polyester) is a polycondensation polymer and contains ester bonds in the molecule, so it is not resistant to alkalis and easily hydrolyzed, especially at high temperatures: Polyester is acid-resistant, insoluble in organic acids, and at low temperatures, it has low concentrations of inorganic The acid is very stable, but it is soluble in concentrated sulfuric acid and heated meta formic acid and is relatively stable to common organic solvents.
After the heat treatment of polyester needle punched felt, it has the advantages of smooth and smooth surface, not easy to deform, and easy to remove dust. It can be used as a basis for ordinary polyester needle felt, and it can achieve the effect of not easily blocking the paste bag and prolong the service life of the bag. And cleaning cycle, saving energy and maintenance costs, is the most widely used variety of mat filter, surface treatment methods according to the conditions of work conditions required singeing, calendering, dipping, coating and so on.
Among the polyester filter media, there are many different materials, common polyester needle punched felts, and waterproof rubber needled felts, as well as anti-static polyester needled felts, among which anti-static polyester needled felts include two kinds, namely Blended and striped polyester needle felts have different effects in industrial applications.