Bio-based polyamide resin with high gas barrier property and manufacturing method the same

摘要

Disclosed is a polyamide resin for packaging films, which uses 100% bio-derived raw materials for packaging film polyamide resins and maintains excellent gas barrier properties and has excellent moisture absorption suppression performance at high humidity, and a manufacturing method suitable for realizing such performance. The present invention is a polyamide resin polymerized from aliphatic dicarboxylic acids of C10 to C18 and cadaverine, wherein the polyamide has an oxygen permeability of less than 3 cc·mm/m