Explanation
synthetic fiber spun from aliphatic polyolefin. Mainly polyethylene and polypropylene fiber. polyolefin is a nonpolar saturated aliphatic polymer with good flexibility of macromolecular chain and good crystallinity. However, due to the weak interaction between macromolecule, the glass transition temperature and melting temperature are relatively low. The mechanical properties of fiber are closely related to the molecular weight of polymer. polyolefin fiber is widely used in the production of various nonwovens due to its abundant raw materials and low price. The fiber has good lipophilicity and hydrophobicity, and is the raw material for manufacturing oil absorption and oil-water separation materials; With high fiber strength and low density, it is a good materials for producing ropes, cables, fishing nets, wrapping belts, etc. polyolefin can also be processed into a film, and then the film is stretched and split into fibers, called membrane split fibers; The film is also cut into flat strips, called flat filament, for processing ropes, packaging bags, etc.
Classification
Organic polymer materials -> Fiber -> Chemical fibers