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Wednesday, 11 December 2019
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Raw materials & technologies, Technologies

A model for relating gloss and film thickness

Tuesday, 19 November 2019

Researchers recently develeoped a viscosity-mediated model for relating gloss and film thickness of coatings.

The model reflects the hindering of film formation due to non-Newtonian behaviour. Source: geralt / Pixabay.

The model reflects the hindering of film formation due to non-Newtonian behaviour. Source: geralt / Pixabay.

Film thickness determines many key coating properties including gloss. However, current literature hardly addresses the development of methods to directly correlate film thickness with gloss. Thus, the lack of accurate models hinders further product design and optimisation of coating products and processes.

Successful prediction of gloss-viscosity relationships

In a current contribution, a previously derived gloss-viscosity relationship is turned into a gloss-film thickness mathematical model. Experimental results of both matting and glossy agents are found to be successfully predicted by a model that is revealed as a simple and useful tool for day-to-day calculations.

The study is published in: Progress in Organic Coatings Volume 136, November 2019, 105195.

Image source: Pixabay

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