Application of Rheometer in Powder Coatings Products

Li Rui, Zhao Weiguo

(

Jotun Coatings（Zhangjiagang）Co., Ltd., Zhangjiagang, Jiangsu

)

Abstract:

Rheometer has been widely used in polymer materials, but the application of rheometer in powder coatings products was less reported. In this article, the curing process, application performance and product properties of powder coatings are studied by use of rheometer, and the application examples of rheometer in powder coatings product development were described and discussed, focusing on how to use rheometer to determine the gel time of powder coatings, and how to characterize the start of melting and end time of levering processes by rheometer. The viscosity characterization of powder coatings during curing process and how to use rheometer to test dry powder fluidity were studied. Through the introduction of the above aspects, the use of rheometer in powder co....