Ultrafine powder coatings for thin film applications

与液体涂料相比，粉末涂料具有环保、生产效率高的特点。然而，高薄膜厚度和较差的视觉外观限制了它们在需要高精度和高度美学效果的行业中的应用，例如消费电子产品，预涂覆金属（PCM）和其他小型部件，如铰链，天线，螺栓和螺母等。为了获得光滑的涂覆表面，粉碎粉末粒度是必要的，但这导致流动性差，流化和气动输送困难。

Powder coatings are environment-friendly and higher in production efficiency compared with liquid coatings. However, high film thickness and inferior visual appearance limited their uses in the industries where high precision and highly aesthetic effects are required, such as for consumer electronics, pre-coated metal (PCM) and other small components like hinges, antennas, bolts & nuts, etc. For getting smooth coated surface breaking down the powder particle size is necessary but this leads to poor flowability and difficulty in fluidization and pneumatic transport. At University of Western Ontario the powder technology and fluidization research group of Prof. Zhu specializes in particle research and industrial scale-up of ultrafine particle fluidization and powder coatings. With patents and rich experiences in powder handling, the researchers are aiming at converting the existing coarse powder formulae of H&G to ultrafine version, and then follow up with the industrial scale-up and conduct all the performance testing. H & G have the collaborative abilities to support the project from several perspectives, and the project will provide significant increase in value of manufactured products and will increase employment opportunities for highly qualified personnel and supporting manufacturing employees. And the University of Western Ontario will be able to broaden the application areas of fine powder technology and make contributions to real industrial practices.