Overview Of PP Non Woven Fabric

PP Non Woven Fabric is Nonwoven Fabric made of PP through melt stretching, web laying, hot rolling bonding and other processes. It has the advantages of good air permeability, low cost and strong mechanical properties. The fiber diameter of PP Non Woven is usually only a few microns. Since the fibers are very fine in diameter and irregularly stacked, tangled and overlapped, it has small through holes to ensure good breathability of the nonwoven. In addition, the pore structure of Non Woven Fabric polypropylene is fluffy. When filtering particles in the air, the fibers in the channel can fully contact the micro - nano particles in the air, thus exerting its excellent mechanical trapping effect. So as to achieve the effect of effectively filtering suspended particles in the air. It is a fiber filter material with excellent performance. In the field of air purification, Polypropylene Non Woven Material is often used as filter units for medium - efficiency filter equipment and personal protective equipment to filter small particles in the air.

However, Polypropylene Non Woven Fabric Rolls also have some disadvantages during use. Since the side chain of PP contains a large number of methyl groups, the presence of these methyl groups greatly reduces the chemical stability of PP and makes it easy to degrade under photothermal effects such as ultraviolet light irradiation and thermal energy. In addition, PP is a non - functional material and cannot interact with other organic substances, which also hinders its further application in the field of air purification. The study found that the surface modification technology is to introduce some guano groups on the surface of the material on the basis of ensuring the structural integrity of the substrate, to change the properties of the existing material, to endow it with new functions, and to make it more widely used.