After countless explorations, countless experiments, and countless failures, people finally developed a new type of environmentally friendly material, which is polytetrafluoroethylene microporous membrane.
People have long noticed that polytetrafluoroethylene (PTFE), which has the most outstanding comprehensive properties among polymer materials, has excellent high and low temperature properties, outstanding chemical stability, and good dielectric properties and hydrophobicity. Ideal membrane material for separating microparticles under some harsh conditions.
However, the infusible and insoluble characteristics of PTFE have made the technology for manufacturing its microfiltration membrane difficult to solve for a long time, limiting its application development.
In the 1960s, DuPont first used uniaxial stretching to produce PTFE stretched membranes. Although its micropore size, porosity, and membrane strength were not suitable for use in microfilters, it was widely used as a microfilter in the future. Sealing tape.
In the mid-1970s, the United States successfully developed PTFE biaxially stretched microfiltration membrane, and subsequently produced it in Japan and Europe.
But so far, only a few companies produce and sell polytetrafluoroethylene microporous membranes. ptfe film manufacturers specialize in the production of polytetrafluoroethylene microporous membranes, which utilize the oil absorption, insolubility and olefin properties of polytetrafluoroethylene plastic resin. The volatile characteristics of the material form micropores; taking advantage of the plasticity characteristics of polytetrafluoroethylene plastic before the curing temperature, it is biaxially stretched within the processing range of the process temperature section, and finally sintered and solidified in a high-temperature atmosphere to become a thick 0 .
A microporous polytetrafluoroethylene membrane of about 04mm that is breathable but does not leak.
PTFE film product materials are all imported raw materials, with high uniformity, stable performance, good air permeability, and a filtration efficiency of up to 99%.
999995%! It can basically meet the filtration efficiency grade requirements of sub-high efficiency, high efficiency and ultra high efficiency filters.
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