A METHOD FOR PREPARING POLYMER / CLAY NANOCOMPOSITES BY USING REACTIVE EXTRUSION

摘要

The present invention relates to a technique concerning a composite material that fills the inorganic particles of nano size in the resin or a general-purpose engineering plastics (engineering plastics), and more particularly, nylon 6 (Nylon 6) a reaction extrusion (reactive extrusion) capable polymer such as polymerization while sodium is used as the inorganic filler particles - montmorillonite relates to (sodium-montmorillonite) and a technology for manufacturing a nano-composite material (nanocomposites) which evenly disperse the clay, such as nano-scale unit. According to the invention, to the reaction in a twin screw extruder after mixing the monomer and clay in advance the molecular level, or the addition of a clay in a screw extruder during the polymerization, mixed by it is possible to obtain a balanced state improved nanocomposites, in this way the produced nano composite material exhibits excellent mechanical and thermal properties and low gas permeability can be applied to a structural material or packaging material.