Understanding parameters affecting system transfer efficiency (STE) of powder coatings in the paint industry

Articles in Press

Document Type : Research Article

Authors

1 Institute of Chemical Engineering &Technology, University of the Punjab, Pakistan.

2 Institute of Chemical Engineering & Technology, University of the Punjab, Pakistan

3 Institute of Energy & Environmental Engineering, University of the Punjab, Pakistan.

4 Institute of Chemical Engineering & Technology, University of the Punjab, Pakistan.

Abstract

Powder coatings are fine ground fused plastic particles that are physically resembled to sand containing binders, extenders, pigments, fillers, and leveling additives. In this work, developed powder coating samples that consist of 70 % polyester and 30% epoxy majors were applied by a corona gun and after the application the powder coated surface was heated in an oven, powdered fine particles were melted and a coating film was developed. The study aims at evaluating the effects of different parameters like particle size distribution, particle moisture content and particle fluidization value on determining the system transfer efficiency of powder coating for application in the paint industry. The effect of the parameters showed a system transfer efficiency of 80% at 65 micrometer particle size and 0.25% moisture content. However, a system transfer efficiency of 83% was noted when the moisture content and fluidization value were studied at 0.25% and 145 respectively. New trends in powder coating production are sustainability, low-temperature cure, and high durability of a coating film as it steers supply chain difficulties and labour shortages, paving the way for a robust and creative future.

Keywords

Iranian Journal of Chemistry and Chemical Engineering

Articles in Press, Accepted Manuscript
Available Online from 15 August 2023

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