The effects of powder coatings'particle size on gloss,fluidity,powder rate,recovery,and spraying area of coating surface were analyzed by means of scanning electron microscopy and laser particle size analyzer,etc.The test results showed that when the powder coatings'particle size is 30 μm,the gloss of the coating is 85%,the outflow of the powder coatings is 150 g in 30 seconds,the powder coating rate is 60%,the recovery rate is 63%,and the coating surface effect is good,smooth and fine.Compared with conventional powder coatings,the average film thickness of the thin powder coatings is 39.4 μm,which saves the powder coatings dosage 79.5%.The overall performance of the thin powder coatings is excellent and it meets the requirements of production and application of powder profile products.
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万方数据
