PP woven bag coating material ye polypropylene resin ye.
Polypropylene resin, ye polymer kristal ye cɔl crystalline polymer ye cɔl crystalline polymer ye cɔl crystalline polymer ye cɔl crystalline polymer ye cɔl crystalline polymer ye cɔl crystalline polymer ye cɔl crystalline polymer ye cɔl crystalline polymer ye cɔl crystalline polymer A ye 0.90-0.91 ye, a ye resin ye kɔnɔ ye. Mechanical properties are good, heat resistance is good, its melting point is around 170°C, in no external force action, 150°C does not deform, chemical stability is good, resistant to acids, alkali and organic solvents, with most chemical drugs (such as fuming nitric acid, chromic acid solution, halogen, benzene, carbon tetrachloride, chloroform etc.) does not work, and almost does not absorb water. Polypropylene's disadvantages are easy aging, brittle when low temperature, low temperature impact strength poor, but can be used to add additives, co-mixing or co-aggregation to improve. Polypropylene's disadvantages are easy aging, brittle when low temperature, low temperature impact strength poor, but can be used to add additives, co-mixing or co-aggregation to improve.