دانلود رایگان پاورپوینت پلی پروپیلن (انگلیسی)

Polypropylene
Presentation by
Chemical and physical properties
Manufacturing
Applications

Manufacturing
Melt processing of polypropylene can be achieved via extrusion and molding. Common extrusion methods include production of melt-blown and spun-bond fibers to form long rolls for future conversion into a wide range of useful products, such as face masks, filters, nappies (diapers) and wipes.