Non-coherent video-reflectometry of growing pores in plasticized polymers during supercritical fluidic foaming

E. V. Ushakova; M. V. Alonova; D. A. Zimnyakov

doi:10.1117/12.2588599

4 May 2021 Non-coherent video-reflectometry of growing pores in plasticized polymers during supercritical fluidic foaming

E. V. Ushakova, M. V. Alonova, D. A. Zimnyakov

Author Affiliations +

Proceedings Volume 11845, Saratov Fall Meeting 2020: Optical and Nanotechnologies for Biology and Medicine; 118451A (2021) https://doi.org/10.1117/12.2588599
Event: Saratov Fall Meeting 2020, 2020, Saratov, Russian Federation

Abstract

A method of non-coherent video-reflectometry based on acquisition and analysis of image sequences in the backreflection mode under white light illumination is examined to characterize the nucleation stage in a plasticized biodegradable polymer (polylactide). Nucleation in the foamed system “polylactide – supercritical/subcritical carbon dioxide” is provoked by a pressure quenching in the quasi-isothermal mode. The features of image formation are discussed for the cases of birth and growth of the surface and bulk pores in the plasticized polymer.

Citation Download Citation

E. V. Ushakova, M. V. Alonova, and D. A. Zimnyakov "Non-coherent video-reflectometry of growing pores in plasticized polymers during supercritical fluidic foaming", Proc. SPIE 11845, Saratov Fall Meeting 2020: Optical and Nanotechnologies for Biology and Medicine, 118451A (4 May 2021); https://doi.org/10.1117/12.2588599

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