General-purpose BOPP films
BOPP film, that is, biaxially oriented polypropylene film, BOPP film production is the polymer polypropylene melt is first made into sheet or thick film through the narrow head, and then in a special stretching machine, at a certain temperature and set speed, while or in steps in the vertical two directions (longitudinal, transverse) of the stretching, and after appropriate cooling or heat treatment or special processing (such as corona, coating The film is made by appropriate cooling or heat treatment or special processing (e.g. corona, coating, etc.).
Multi-layer co-extrusion cast film extrusion production line is composed of multiple components, and the equipment is composed of main motor, reduction box, feeding system, mixing and extrusion system, screen changer, melt pump, casting roll, traction roll, tension roll, winding roll and electrical control system.
Good news! Good news! Guangzhou POTOP participated for the first time and stood out as the "The Biaxial Stretcher" project. It Won the winning prize of the growth group of high-end equipment manufacturing industry in the 11th China Innovation and Entrepreneurship Competition (Guangdong · Guangzhou) and the 2022 Guangzhou Science and Technology Innovation and Entrepreneurship Competition! Congratulations to POTOP!
Cellulose acetate membrane (CA membrane for short) is the most widely used type of cellulose reverse osmosis membrane. Cellulose acetate membrane has high flow rate and thermal stability. Compared with mixed cellulose ester microporous membrane, nylon membrane and PVDF membrane, it is also the filter membrane with the lowest adsorption capacity.
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