PU microporous membrane
PU microporous waterproof and moisture-permeable film is an environmentally friendly film with polyurethane as the main material.●The PU microporous surface has a spider web-like microporous structure, and the microporous state is a regular fiber node structure. PU microporous is an asymmetric membrane. The size of the micropores on the front and back of the membrane is different. The cross section of the membrane is a network structure with a multi-layer structure. The three-dimensional structure of the pores has network connections, pore sleeves, and
pores. Very complex structures such as bending may consist of multiple micropores forming a channel, or a micropore may be connected to multiple channels.●By forming multiple micropores on the film, the pore size is between water droplets and water vapor molecules, water vapor and air molecules can pass freely, preventing water droplets from passing through, so that the film has both waterproof function and good moisture permeability.
