23 Jul Method for manufacturing three-dimensional porous disorder scaffolds from polylactic acid molten spinning fibers by means of thermal bonding and solidifying
Abstract
The invention discloses a method for manufacturing three-dimensional porous disorder scaffolds from polylactic acid molten spinning fibers by means of thermal bonding and solidifying. The method include steps of manufacturing the molten spinning fibers from polylactic acid slices with excellent biodegradation and biocompatibility by the aid of melt spinning processes and manufacturing parallelly arranged fiber assemblies by the aid of yarn winding technologies; shearing the parallelly arranged fiber assemblies to obtain short fibers with different lengths, and manufacturing the disorder scaffolds by the aid of uniform net laying and thermal bonding and solidifying processes; or manufacturing the disorder scaffolds from the polylactic acid slices with the excellent biodegradation and biocompatibility by the aid of single-screw plastic extruders, melt blowing technologies and thermal bonding of the polylactic acid slices. The method has the advantages that the three-dimensional porous disorder scaffolds manufactured from the PLC (polylactic acid) molten spinning fibers are stable in structure and have excellent internal pore structures, physical properties and mechanical properties; the disorder scaffolds can be applied to biomedical fields of bone tissue engineering and the like and have excellent application potential and prospects.
Year: 2015
Country: CN
Doc No: 104674454