Improving paint and coating formulations

Paints and coatings are highly complex multi-component systems that pose many challenges for the formulation chemist. Ongoing control of raw materials and final formulations is essential for ensuring product quality and customer satisfaction, while an in-depth understanding of physical properties is necessary to devise new formulations.

This white paper discusses these challenges, and explains how obtaining information on the constituents of paint at the molecular and particle level using the techniques of X-ray fluorescence (XRF), X-ray diffraction (XRD), laser diffraction (LD), electrophoretic light scattering (ELS), gel permeation chromatography (GPC) (more generally known as size exclusion chromatography (SEC)), and particle image analysis can ultimately lead to better product performance, streamlined operations, and greater value to the business.

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Paints and coatings are highly complex multi-component systems that pose many challenges for the formulation chemist. Ongoing control of raw materials and final formulations is essential for ensuring product quality and customer satisfaction, while an in-depth understanding of physical properties is necessary to devise new formulations.

This white paper discusses these challenges, and explains how obtaining information on the constituents of paint at the molecular and particle level using the techniques of X-ray fluorescence (XRF), X-ray diffraction (XRD), laser diffraction (LD), electrophoretic light scattering (ELS), gel permeation chromatography (GPC) (more generally known as size exclusion chromatography (SEC)), and particle image analysis can ultimately lead to better product performance, streamlined operations, and greater value to the business.

Please download the whitepaper to read more.

Contents

Section #ContentsPage #
1.Introduction3
2.Challenges faced by paint manufacturers6
2.1Confirming chemical purity of raw materials7
2.2Adhering to regulations on lead content7
2.3Optimizing particle size for powder coatings8
2.4Determining droplet size in liquid spray paints9
2.5Understanding polymer properties9
2.6Understanding effects of particle properties on color performance10
2.7Understanding the role of dispersants for dispersion stability11
2.8Understanding effects of particle properties on gloss, weathering and flatting performance12
2.9Understanding effects of the formulation components on bulk properties13
2.10Measuring film thickness and composition15
2.11Investigating residual stress and microstructure in ‘smart’ coatings15
3.Analytical techniques used for analysis of paints and coatings16
3.1Elemental analysis using XRF17
3.2Crystal phase analysis using XRD18
3.3Particle size measurement using LD20
3.4Nanoparticle size measurement using DLS21
3.5Zeta potential measurement using22
3.6Particle shape and size measurement using image analysis23
3.7Polymer analysis using GPC/SEC25
4.Conclusions27
5.References29

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