Application of organic pyrolysis cryogenic curing agent in powder coatings

whether it is thermoplastic or thermoset powder coatings, generally need to bake 20min above 180 degrees CThe curing temperature is high, its application is limited to metal and other heat-resistant substrates, but can not be applied to the thermal substrate, such as wood, medium density fiberboard and other surface coatingThe high curing temperature also increases energy consumptionFor every 10 degrees C reduction in curing temperature, you can save about 10% of the coating energyThe long curing time also leads to a large continuous production line, increasing the time of the product in the oven, which is not conducive to production costs and production efficiencyTherefore, the study of low temperature curing and rapid curing of powder coatings has important economic and social benefitsresearchers have synthesized an organic anticina cryogenic curing agent (toluene-2,4-2) for epoxy powder coatings, and improved the production process of epoxy powder coatings to enable epoxy powder coatings to cure rapidly at low temperaturesAt the same time, the amount of curing agent of the components of the synthetic epoxy powder coating, the physical mechanical properties of the coating film and the chemical resistance are studied1 a low-temperature curing agent suitable for epoxy powder coatings (toluene-2,4-2,2))) and improved the production process of powder coatings so that epoxy powder coatings are cured completely at lower temperatures and in a relatively short period of time2 the application of organic pyridine compounds as a curing agent of epoxy powder coating, fixed curing agent dosage of 9%, take an improved process to produce powder coatings, can make epoxy powder coatings in 130 degrees C, 9min and 140 degrees C, 4min curing conditions, in order to meet the physical and mechanical properties of the coating film and chemical resistance at the same time, can greatly reduce the curing temperature, energy-saving effect is obvious, can meet the requirements of industrial production3 the synthesis of low-temperature cured epoxy powder coating, so that the application of powder coating is not limited to metal and other heat-resistant substrate surface coating, but also makes powder coating applied to plastic products, paper, cardboard and wood and other thermal substrate surface coating is possible, and finally achieve the wood powder coating specialization, in order to replace the wood furniture industry dominated by solvent-based coatings containing a large number of VOC, thus greatly expanding the application range of powder coatings