Procedure for the production of Polymer Strands of high tensile strength and low Permanent deformation of Polymers or copolymers, Strands of high tensile strength and low Permanent deformation and the use of such threads

摘要

Procedure for the production of Polymer Strands of high tensile strength Low Permanent deformation, characterized in that it comprises the following steps: a) preparing a mixture of: (i) a First Polymer or Copolymer of Ultra High Molecular Weight polyolefin, (ii) a Second C Opolu00edmero or polyolefin Polymer Clay nanocomposite and (iii) a nonpolar Solvent spinning,(b) feeding the resulting slurry through an Extruder at a temperature of at least 350f, causing the formation of a gel, The gel spinning c) obtained in a row with a ratio of length to diameter (L / d) of at least 15; (d) to cool The temperature by a thread below Of 35), and subsequently remove the non polar Solvent spinning,(f) to stretch the thread and thus obtained in order to achieve a tensile strength of at least 18 CN / dtex and a Lower Permanent deformation value of 0.07% per hour, where the first Polymer or Copolymer of Ultra High Molecular Weight polyolefin has a Molecular Weight Average Weight increased in 2000.000 g / mol and a polydispersity of at least 7 and the second polyolefin Copolymer or Polymer Clay nanocomposite is obtained through in situ polymerization of an olefin and an exfoliated clay layers, thus obtained the polyolefin having a Weight Average Molecular Weight d And at least 400 g / mol.