the market size of polyethylene naphthalate (pen) continues to expand, and there is an urgent need for localization.
polyethylene naphthalate (pen) is one of the important members of the polyester family. it is composed of 2,6-dimethyl naphthalate (ndc) or 2,6-naphthalenedicarboxylic acid (2,6-nda). ) and ethylene g…
