Polytetrafluoroethylene (ptfe) was first synthesized and discovered by DuPont in the late 1930s.
PTFE flat membranes are widely used in chemical industry, textile, papermaking, aerospace, petroleum, construction, food, medicine, machinery and marine operations.
MBR** is used in the microbial fermentation industry, and its application research in the field of sewage treatment began in the United States in the 1960s.
Early membrane technology mainly used ultrafiltration tubular membranes. Later, in order to save energy consumption, hollow fiber membranes were developed. Currently, MBR mainly includes tubular membranes and flat membranes. Tubular membranes are often used for reclaimed water return. Flat membranes are used for wastewater treatment.
MBR is generally composed of membrane modules and bioreactors. Compared with traditional bioreactors, it has the characteristics of taking up less space, stable operation, and convenient maintenance and management.
PTFE flat membrane can be compounded on various fabrics and substrates using special processes, and it can become a new type of filter material.
The pore size of the membrane is small, the distribution is very uniform, and the porosity is large. Therefore, the membrane can filter all dust particles including bacteria while ensuring air circulation, thereby achieving the purpose of advanced purification and ventilation.
The products of polytetrafluoroethylene flat membrane manufacturers are made from polytetrafluoroethylene (ptfe) suspended powder, which is expanded and stretched to form a microporous film.
PTFE high-efficiency filter paper has a fibrillar microporous structure. The porosity of the membrane can reach more than 88% or even higher. Moreover, the membrane has 1.4 billion micropores per square centimeter, with a pore diameter ranging from 0.1um to 0.5um, high-efficiency filter paper has high and low temperature resistance (-200℃-260℃) and strong weather resistance.
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