Paint Pigments
Particle Size Analysis of Paint Pigments
"qNano provides a rapid, cost-effective and highly accurate method for particle-by-particle determination of the size, size distribution, and relative surface charge of nano- and micro-sized particles including paint pigments and emulsions."
Introduction
Increasingly, smaller nanoparticles with variable material compositions are under development for applications in biomedical, electronics, pharmaceutical, energy, optoelectronics, catalyst and ceramics industries.
The particle size and size distribution of these materials are of paramount importance to industry, as they influence significant colloid properties such as film gloss, rheology, surface area and packing density, which are important to the end user. Colour also depends on the several material properties of a pigment. First among these is the pigment particle size and size distribution. Most pigments are manufactured in a range of particle sizes intended for different applications (colouring plastics, ceramics, cements, cosmetics, paints, inks, etc.)
Industrial and R&D applications need precise and consistent information regarding particle size and size distribution so as to ensure accuracy and consistency in developing these characteristics.
Table of Contents
Analysis of Dyes and Paints Using qNano
Industrial Researchers Using the qNano
The qNano Platform
qNano uses nanopore based detection for particle-by-particle analysis, offering rapid, cost-effective, and highly accurate determination of particle size, size distribution and relative surface charge.
Analysis of Paint Pigments Using qNano
Paint pigments were analyzed using the qNano platform and the results are shown in the figures below.
Figure 1A. Particle Diameter (nm) verses Translocation Duration (ms) (time of flight) for Pigment Sample 1. Translocation duration is the time taken for the particles to pass through the nanopore and gives an indication of the relative surface charge of the particles.
Figure 1B. Size distribution graph for Pigment Sample 1, indicates a polydisperse sample, with a peak around 650nm.
Figure 2A. Particle Diameter (nm) verses Translocation Duration (ms) for Pigment Sample 2.
Figure 2B. Size distribution graph for Pigment Sample 2 indicates that most of the sample is around 260nm.
Industrial Researchers Using the qNano
The qNano platform is presently being used for industrial research in the following organizations:
- Resene Paint Ltd
- US Army, Weapons & Materials Research Directorate
- Sepmag Technologies
- Charles Stark Draper Laboratory, Inc.
- General Electric Healthcare
- GlaxoSmithKline
- Siemens
Conclusion
qNano provides a rapid, cost-effective and highly accurate method for particle-by-particle determination of the size, size distribution, and relative surface charge of nano- and micro-sized particles including paint pigments and emulsions.
The figures above might represent, for example, measurement before (Figures 1A & 1B) and after (Figure 2A & 2B) industrial processes such as nano-milling. Being able to accurately monitor changes to particle size distribution can result insignificant cost-savings and efficiency gains for manufacturers who require consistent and accurate particle size.
This detailed measurement is not available throughalternative approaches such as laser light scattering, whichonly give intensity weighted outputs and do not correctlyreflect the size distribution of polydisperse samples.
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