PTFE biaxially stretched film is made through special processes such as mixing, extrusion, extrusion, calendering, and biaxial stretching.
Due to the characteristics of ptfe fibrillation, when performing unidirectional stretching (i.e. longitudinal stretching), the ptfe polycrystalline aggregates begin to extend and form some fibrils. The fibrils are parallel to the stretching direction. At the same time, the fibrils The length increases.
The cross-section of ptfe fibrils is wide and thin, its maximum width is about 100nm, and the smallest fibril is ?0.5??1.0nm.
?PTFE biaxially stretched membrane has a microporous structure with staggered fibers. It has high porosity and a pore size in the range of 0.1μm-10μm. It is a polymer filter membrane that can intercept solid particles and colloidal particles in gas or liquid.
The pore size is small and uniform, so higher efficiency can be achieved with lower resistance.
Filter elements are widely used in air purification equipment and can effectively filter dust, particles, carbon dioxide, etc. in the air.
In addition to household use, it is also used for dust protection in factories, clean workshops, operating rooms, laboratories, electronic machinery and communication equipment, etc.
? New Material Technology Co., Ltd. is a PTFE composite material manufacturer focusing on the R&D and production of PTFE membranes. After years of painstaking research and R&D, the company not only has strong R&D strength, complete testing methods and domestic advanced Experimental equipment has also attracted a large number of outstanding technical talents.