Nanocomposite

Since montmorillonite crystal is an inorganic compound having a nano-sized layered structure, it is attracting attention as a nanocomposite material in which organized bentonite is peeled and dispersed to various levels in various resins to the nano level. Nanocomposite resins with organic bentonite have the following excellent functions.  - It exhibits equivalent elastic modulus and tensile strength with less addition amount than other inorganic materials, improves transparency and 　 reduces weight. · Improved smoothness of resin surface · Improved gas barrier properties such as steam, oxygen and odor · Dramatic reduction of coefficient of linear thermal expansion, improved dimensional stability · Improved heat distortion resistance · Recycle of thermoplastic resin · Dyeing of resin is easy · Flame retardancy is improved In order to make the organic bentonite as a nanocomposite material to exhibit the above function, selection of a compound to modify to the end face of organic bentonite crystal, denaturation treatment of resin, establishment of melt kneading condition with resin, etc. are the key points. For resins with high melting temperature, organic bentonite with heat resistance is required.