DEGRADATION MEASUREMENTS
- Coatings from ZDOL500 prepolymer
- best barrier properties due to the large increase in the TgF value caused by the presence of ZDOL 500 (PU-5-IPDI-5 coating is substantially made of both fluorinated and urethane glass, with significant reduction of the overall free volume of the polymer).
- Coatings from ZDOL1000 prepolymer
- since they are characterized by TgH>>T the fluorine content was the controlling parameter