Polyethylene glycol naphthalene dicarboxylate（PEN）

The main raw materials are 2,6-naphthalenedicarboxylic acid and ethylene glycol monomers. Generating synthesize the esterification intermediate firstly by co-esterification reaction firstly and then making PEN by polycondensation reaction. PEN is mainly used in fields such as injection molding processes, insulating films, sheets, and bottle making. The device is only double-reactor batch process experimental device, which adopts an intermittent high-viscosity special polycondensation reactor.