With the continuous development of technology, ptfe materials have become more and more widely used. Many of these purifiers use High-efficiency PTFE composite filter material.
PTFE is a semi-crystalline polymer. Its crystals are composed of parallel-arranged folded chains to form lamellae, and then the lamellae are accumulated to form bands. It is a polycrystalline polymer with a sticky amorphous part between the lamellae. The interaction between PTFE molecular chains is weak, and the activation energy of the ribbon structure to form fibers is only 11.3KJ/mol, which is only several times the ambient temperature. Therefore, the ribbon structure can easily be pulled out of particles and become microfibers under the action of external stress.
The stretching process of PTFE is a process in which fine fibers are continuously pulled out from the folded lamellae and continue to become longer and thinner. During the unidirectional stretching (longitudinal stretching) process of the PTFE calendered film, the thin fibers are continuously pulled out, forming nodes composed of island nodes composed of unstretched crystal regions and slender fibers connecting the nodes. ——Fiber structure.
The purifier uses a high-efficiency filter cartridge as the filter element. The filter material used in this filter cartridge is different from the traditional filter material. Its surface is attached with a layer of polytetrafluoroethylene. vinyl film. The fiber gap of traditional filter materials (such as cotton, cotton sateen, paper and other traditional cellulose, etc.) is 5 to 60um. When smoke passes through, part of the dust particles in the smoke will enter the inside of the filter material and block the filter element; when the blockage When the situation gradually worsens and effective dust cleaning cannot be carried out, the air resistance of the filter element will increase, and the air flow that can pass through will also decrease. If there is no automatic dust cleaning, the filtration effect will decline rapidly. The high-efficiency PTFE composite filter material used in this series of purifiers has a layer of polytetrafluoroethylene film attached to the surface. Its small mesh can block large particles. Some submicron dust particles; submicron dust particles gather on the surface of the filter material and form a permeable dust cake. Most of the dust particles are blocked on the outer surface of the filter material and cannot enter the interior of the filter material. Under the purge of compressed air can be removed promptly and effectively.
High-efficiency PTFE composite filter materialAt the beginning of use, the pressure loss is higher than that of ordinary filter materials, but after it is put into operation, the pressure loss The loss does not change much as the use time increases, while the pressure loss of ordinary filter materials will increase with the use time. When ordinary filter materials are used, dust can easily enter the interior and accumulate more and more until the pores are blocked, making it impossible to continue using it. When using PTFE-coated filter media, the filtered dust is easily removed from the membrane surface, the dust cleaning effect is good, the cycle is long, and the cleaning pressure intensity used is lower, thereby increasing the service life of the filter material.
The currently independently developed high-efficiency PTFE composite filter material is the core raw material for industrial dust removal filter barrels and industrial dust removal filter bags, with a composite rate It has good fastness, reusability, good pulse dust removal effect, and high cost performance, and is widely praised by customers! Interested parties are welcome to enter the store for consultation and purchase!
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