This paper presents new measurement results for thermal and UV curing of liquid paints. By applying thermokinetic analysis4 to the DEA data for the thermal curing of a powder coating, the degree of crosslinking can be predicted and the curing process thereby optimized.

The NETZSCH DEA 230 Epsilon series with signals for both dielectric properties and temperature can measure over the widest ion conductivity range in multi-frequency sweeps from 0.001 Hz to 100 kHz. Of this series, the high-performance DEA 230/2 can be equipped with two external interface boxes for different conductivity ranges. The low-conductivity Integrated Circuit (IC) sensor can be utilized for highly accurate measurements. The single-channel DEA 230/1 or the 10-channel DEA 230/10 are designed to handle nearly all reactive paints and coatings. Due to their high data-acquisition rates, the high-speed DEA 231/1 is preferred for fast UV (ultra violet) light or EB (electronic beam) curing at one selected frequency.