PP Microfiber

The diameter of PP microfiber is smaller, the diameter is generally no more than 50 μ m, and the length is generally no more than 20 mm. It is made by melting isotactic polypropylene and drawing directly through several spinneret holes. The cross section of the fiber is round or shaped. Several monofilaments are stretched, shaped and cut to a certain length to form a fiber bundle. The fiber bundle can be separated into monofilament during mixing with concrete.