| abstract |
The application discloses a preparation method of polyethylene fiber, the polyethylene fiber and its application, surgical suture and artificial joint, and belongs to the technical field of polyethylene fiber preparation. The preparation method comprises: mixing and swelling dry polyethylene resin with a molecular weight range of 4 million to 6.5 million and decahydronaphthalene, dissolving and configuring polyethylene decalin spinning solution; after metering, extruding from a spinneret hole , to obtain jelly tow; after heating in a deionized water bath and drawing at the same time, primary fibers are obtained; after drying, dry precursors are obtained; and after drawing, polyethylene fibers are obtained. The polyethylene fiber is prepared through the preparation method. The preparation method has short flow, controllable process, safety and stability; the polyethylene fiber is composed of 100% polyethylene, and the solvent residue is 0 ppm; the use of the polyethylene fiber includes surgical sutures and artificial joints. Surgical sutures and artificial closures prepared from the polyethylene fiber have biological safety. |