The non-isothermal/TGIC curing kinetics of powder coating of polyester resin was investigated by differential scanning calorimetry（DSC).The curing process and thermal stability of this powder coating system were discussed based on the DSC and thermogravity（TG)results.The gelation temperature

curing peak temperature

and post-cure temperature were respectively calculated to be 113

146 and 195℃ from the non-isothermal DSC results by extrapolating the graph of temperature versus heating rate.The DSC data were analyzed with the Kissinger，Doyle-Ozawa and Crane equations

and the curing kinetic model of the powder coating system was established.The kinetic parameters

including the apparent activation energy

frequency factor and order of reaction were estimated to be 65.71 kJ·mol-1

8.50×106 min-1 and 0.95

respectively.The influence factors of curing reaction rate

degree of cure

curing temperature and time were discussed.This study provides a theoretical basis to understand and optimize the curing process of powder coating of polyester resin for aluminum electrostatic powder spraying.