Explanation

The two components of polymer form composite fiber of skin layer and core layer continuously along the longitudinal direction of the fiber. Different in arrangement and shape by component. It is used to surround the core with the skin component polymer, and the requirements for the spinnability of the core component can be lower, so there are many materials that can be used for the core, such as some inorganic substances or pure carbon, and can be made into X-ray absorption fiber, infrared absorption fiber, electroconcluctive fiber and optical waveguide fiber. The adhesive fiber made of low melting point polymer or hot-melt adhesive can be processed into high-performance nonwovens and fabrics with adhesive properties with other materials. The common polymer in the cortex are polyhexamethylene adipamide, polyhexaleucamide, polyethylene, etc., and the core layer is often polyethylene terephthalate, polypropylene, polycarbonate, etc. See "composite fiber" for its application.

Classification