Delustering agent for powder coating, application of delustering agent, delustering powder coating and application of delustering powder coating

The invention provides a delustering agent for a powder coating, an application of the delustering agent, a delustering powder coating and an application of the delustering powder coating, and belongs to the technical field of coatings. The delustering agent for the powder coating comprises a hydroxyl functional group-containing component and a carboxyl functional group-containing component, and the delustering agent can realize the delustering effect that the gloss of an HAA system powder coating is less than 30% (60 degrees); the matting agent resin is low in selectivity, and can achieve a very good matting effect when being matched with different carboxyl film-forming resins for use; the matting agent has a stable matting effect, and the prepared matting powder coating can obtain a stable matting effect under different curing conditions. 本发明提供了一种粉末涂料用消光剂及其应用、消光粉末涂料及其应用，属于涂料技术领域。本发明所述粉末涂料用消光剂包括含羟基官能团组分和含羧基官能团组分，所述消光剂可以实现HAA体系粉末涂料＜30％光泽(60°)的消光效果；所述消光剂树脂选择性低，配合不同的羧基成膜树脂使用时均能实现很好的消光效果；所述消光剂的消光效果稳定，所制备的消光粉末涂料在