Preliminary Evaluation of the Phosphazene Resin PPZ

摘要

A phosphazene material, PPZTM, is reported by Idemitsu Petrochemical Company(Tokyo, Japan) to have excellent chemical and abrasion resistance properties for hardcoating applications. An evaluation of the chemical resistance of this coating is presented. PPZ coated on poly(ethylene terephthalate) (PET) films were challenged with simulants (2-chloroethyl ethyl sulfide (CEES), 2-chloroethyl methyl sulfide (CEMS), diisopropyl methylphosphonate (DIMP)) and a decontaminant (DS-2) via a droplet test method. Preliminary results showed that the PPZ coating was affected by DIMP, CEES, and CEMS as observed by optical and scanning electron microscopy, (SEM). Upon visual examination, the DS-2 treated specimen did show an effect; however, the coating's behavior to this corrosion liquid is inconclusive. In addition, PPZ(TM) resin was coated on polycarbon (PC) using a modified ASTM D823-87 method and cured by ultraviolet light. Curing time was determined by Fourier transform infrared spectroscopy (FTIR) using an attenuated total reflectance (ATR) technique. The Taber abrasion resistance of the PPZ-coated PC specimens were slightly lower than reported values. Phosphazene, Chemical resistance, Polyethylene terephthalate, Polycarbonates, Abrasion.