3D Quantitative Light-intensity Dispersion Index of Polymer Nanocomposites Based on Optical Microscopy

Title
3D Quantitative Light-intensity Dispersion Index of Polymer Nanocomposites Based on Optical Microscopy
Authors
박민박종혁김재우장지운오진우김성륜
Keywords
Carbon nanotubes; Dispersion; Nanocomposites; Optical microscopy; Extrusion
Issue Date
2021-03
Publisher
Fibers and polymers
Citation
VOL 22-771
Abstract
There is a great demand for a dispersion evaluation method that can be applied even when a nano-sized filler is incorporated, that can evaluate a three-dimensional (3D) quantitative dispersion of a composite material, and that is not expensive and time consuming. Here, we proposed light-intensity dispersion index (LDI) to quantitatively evaluate the dispersion based on the light scattering distribution on divided optical microscopy (OM) images. Difference in the light-intensity is determined by the dispersion and agglomeration of the filler in the polymer matrix; therefore, the smaller the distribution and the number of peaks of light-intensity, the more uniform the dispersion. The reliability of the developed LDI was improved by introducing an agglomeration size weighting factor. Furthermore, the validity of the LDI was also verified in comparison with the experimental results. In conclusion, we have successfully developed a method for the 3D quantitative dispersion evaluation of nanocomposites with minimal cost and time consumption.
URI
http://pubs.kist.re.kr/handle/201004/72356
ISSN
1229-9197
Appears in Collections:
KIST Publication > Article
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