▎ 摘　　要

NOVELTY - Energy-saving curing super-weather-resistant powder coating comprises 100-120 pts. wt. modified resin, 20-30 pts. wt. crosslinking agent, 10-15 pts. wt. polyester resin P5127, 10-15 pts. wt. polyester resin P3250, 8-10 pts. wt. talc, 15-20 pts. wt. titanium dioxide, 5-10 pts. wt. leveling agent, 1-3 pts. wt. antifoaming agent, and 1-3 pts. wt. curing accelerator. The modified resin is prepared by (A1) stirring and refluxing 4,4'-dimethyldiphenylamine, carbon tetrachloride, azobisisobutyronitrile, and liquid hydrogen bromide, irradiating with high-pressure mercury lamp, dropwise adding hydrogen peroxide, reacting to obtain Intermediate 1, uniformly mixing intermediate 1, sulfur and iodine, and carrying out the reaction to not produce hydrogen sulfide gas to obtain intermediate 2, (A2) mixing 2,6-di-tert-butylphenol, sodium methoxide and ethanol, and (A3) uniformly mixing the intermediate 5, potassium carbonate and tetrahydrofuran. USE - Used as energy-saving curing super-weather-resistant powder coating. ADVANTAGE - The molecular chain of the modified resin contains multiple hindered phenol and phenothiazine structures, which can scavenge the free radicals generated by the polymer and decompose the generated peroxides, so that the modified resin has excellent oxidation resistance, the addition of the crosslinking agent makes the powder coating has excellent weather resistance, and unlike traditional coatings, these effects are not obtained by the blending of additives, which makes the high weather resistance of the powder coating more durable. DETAILED DESCRIPTION - Energy-saving curing super-weather-resistant powder coating comprises 100-120 pts. wt. modified resin, 20-30 pts. wt. crosslinking agent, 10-15 pts. wt. polyester resin P5127, 10-15 pts. wt. polyester resin P3250, 8-10 pts. wt. talc, 15-20 pts. wt. titanium dioxide, 5-10 pts. wt. leveling agent, 1-3 pts. wt. antifoaming agent, and 1-3 pts. wt. curing accelerator. The modified resin is prepared by (A1) stirring and refluxing 4,4'-dimethyldiphenylamine, carbon tetrachloride, azobisisobutyronitrile, and liquid hydrogen bromide, irradiating with high-pressure mercury lamp, dropwise adding hydrogen peroxide, reacting to obtain Intermediate 1, uniformly mixing intermediate 1, sulfur and iodine, and carrying out the reaction to not produce hydrogen sulfide gas to obtain intermediate 2, (A2) mixing 2,6-di-tert-butylphenol, sodium methoxide and ethanol, refluxing and adding dropwise methyl acrylate to react to obtain intermediate 3, dissolving the intermediate 3 in methanol, adding lithium aluminum hydride, refluxing and reacting to obtain the intermediate 4, mixing and reacting the intermediate 2, methyl acrylate and graphene oxide, extracting and distilling with ethyl acetate, dissolving the substrate in toluene, adding intermediate 4 and sodium methoxide, and reacting under reflux to obtain intermediate 5, and (A3) uniformly mixing the intermediate 5, potassium carbonate and tetrahydrofuran, adding the aqueous solution of tetraethylammonium bromide, refluxing and reacting to obtain the intermediate 6, uniformly mixing the intermediate 6, epoxy resin E-12 and acetone, stirring and adding potassium persulfate, heating up and reacting to prepare a modified resin.