Technical requirements for ptfe waterproof and breathable membrane

PTFE waterproof and breathable membrane is a new type of polymer waterproof material. In terms of production technology, its technical requirements are much higher than those of ordinary waterproof materials; at the same time, in terms of quality, waterproof and breathable membranes also have functional characteristics that other waterproof materials do not have.

The technology of waterproof and breathable membranes was first introduced from European and American countries. However, the production processes of domestic products are diverse, and the quality of products from various manufacturers is uneven, failing to form a unified quality standards. In fact, waterproof and breathable membranes mainly consist of three layers: PP spunbond non-woven fabric, PE polymer breathable membrane, and PP spunbond non-woven fabric. The main function of spunbond non-woven fabric is to enhance the tensile force and hydrostatic pressure and protect the middle layer (breathable film). The real breathability mainly depends on the middle layer PE polymer breathable film.

Curing is usually performed under a certain tension to ensure pore formation and dimensional stability of the film. The curing temperature has a great impact on the pore size and porosity of the film. ptfe waterproof and breathable membrane has excellent breathability, corrosion resistance, aging resistance, high temperature resistance and other properties. According to the usage requirements, the pore diameter can be between 0.1-10um, the thickness can be between 2-100um, the porosity can reach 50%–80%, and there are up to hundreds of millions of micropores per square centimeter.

PTFE film manufacturer specializes in the production of polytetrafluoroethylene microporous membranes. It has a full set of advanced production equipment and technology, and also has an advanced clean room and an independent composite slitting workshop to ensure the production of PTFE membranes. Quality; the materials of the products produced are all imported raw materials, with high uniformity, stable performance, good air permeability, and the filtration efficiency can reach 99.999995%! It can basically meet the filtration efficiency grade requirements of sub-high efficiency, high efficiency and ultra high efficiency filters. Interested parties can enter the store to inquire and purchase!

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