Extinction low-temperature curing outdoor weather-resistant powder coating material

The invention discloses an extinction low-temperature curing outdoor weather-resistant powder coating material, which comprises the following raw materials: a high-acid-value semi-crystalline carboxylpolyester resin, a random carboxyl polyester resin, an isocyanuric acid glycidyl ester curing agent and an additive, and/or a pigment filler, wherein the random carboxyl polyester resin is a low-temperature curing type random carboxyl polyester resin. According to the invention, the extinction low-temperature curing outdoor weather-resistant powder coating material can be prepared through a one-step extrusion method, can achieve low-temperature curing extinction at 140 DEG C, and has stable extinction effect, good outdoor weather resistance and good storage stability. 本发明公开了一种消光低温固化户外耐候性粉末涂料，其原料包括：高酸值半结晶羧基聚酯树脂、无规羧基聚酯树脂、异氰尿酸缩水甘油酯类固化剂和添加剂，和/或颜填料，其中，无规羧基聚酯树脂为低温固化型无规羧基聚酯树脂。本发明能够通过一步挤出的方法制备，能够实现于140℃的低温固化消光，消光效果稳定，且具有很好的户外耐候性能和储存稳定性。