Morphology Mapping of Nanoparticle-Filled Immiscible Polymer Blends in Flow: The Existence of a Critical Ratio between Nanoparticle Concentration and Droplet Concentration

[Image: see text] The delicate flow-induced morphology of immiscible polypropylene/polystyrene blends in the presence of silica nanoparticles (NPs) is investigated in a multiparameter space. The morphology map constructed based on in situ morphology observation reveals that a critical ratio of NP co...

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Autores principales: Kong, Miqiu, Chen, Guangling, Xi, Shuting, Huang, Yajiang, Li, Guangxian
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2018
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6645428/
https://www.ncbi.nlm.nih.gov/pubmed/31459254
http://dx.doi.org/10.1021/acsomega.7b02072
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author Kong, Miqiu
Chen, Guangling
Xi, Shuting
Huang, Yajiang
Li, Guangxian
author_facet Kong, Miqiu
Chen, Guangling
Xi, Shuting
Huang, Yajiang
Li, Guangxian
author_sort Kong, Miqiu
collection PubMed
description [Image: see text] The delicate flow-induced morphology of immiscible polypropylene/polystyrene blends in the presence of silica nanoparticles (NPs) is investigated in a multiparameter space. The morphology map constructed based on in situ morphology observation reveals that a critical ratio of NP concentration to droplet concentration, which strongly depends on the NP surface chemistries and the ratio of the NP concentration to the droplet concentration, exists. Below or above the critical ratio, the NPs display diverse effects on the morphology (promote or suppress droplet coalescence). These results can be interpreted by the competition between the bridging mechanism (acceleratory effect) and the enhanced viscoelasticity (inhibitory effect) exerted by the NPs.
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spelling pubmed-66454282019-08-27 Morphology Mapping of Nanoparticle-Filled Immiscible Polymer Blends in Flow: The Existence of a Critical Ratio between Nanoparticle Concentration and Droplet Concentration Kong, Miqiu Chen, Guangling Xi, Shuting Huang, Yajiang Li, Guangxian ACS Omega [Image: see text] The delicate flow-induced morphology of immiscible polypropylene/polystyrene blends in the presence of silica nanoparticles (NPs) is investigated in a multiparameter space. The morphology map constructed based on in situ morphology observation reveals that a critical ratio of NP concentration to droplet concentration, which strongly depends on the NP surface chemistries and the ratio of the NP concentration to the droplet concentration, exists. Below or above the critical ratio, the NPs display diverse effects on the morphology (promote or suppress droplet coalescence). These results can be interpreted by the competition between the bridging mechanism (acceleratory effect) and the enhanced viscoelasticity (inhibitory effect) exerted by the NPs. American Chemical Society 2018-09-21 /pmc/articles/PMC6645428/ /pubmed/31459254 http://dx.doi.org/10.1021/acsomega.7b02072 Text en Copyright © 2018 American Chemical Society This is an open access article published under an ACS AuthorChoice License (http://pubs.acs.org/page/policy/authorchoice_termsofuse.html) , which permits copying and redistribution of the article or any adaptations for non-commercial purposes.
spellingShingle Kong, Miqiu
Chen, Guangling
Xi, Shuting
Huang, Yajiang
Li, Guangxian
Morphology Mapping of Nanoparticle-Filled Immiscible Polymer Blends in Flow: The Existence of a Critical Ratio between Nanoparticle Concentration and Droplet Concentration
title Morphology Mapping of Nanoparticle-Filled Immiscible Polymer Blends in Flow: The Existence of a Critical Ratio between Nanoparticle Concentration and Droplet Concentration
title_full Morphology Mapping of Nanoparticle-Filled Immiscible Polymer Blends in Flow: The Existence of a Critical Ratio between Nanoparticle Concentration and Droplet Concentration
title_fullStr Morphology Mapping of Nanoparticle-Filled Immiscible Polymer Blends in Flow: The Existence of a Critical Ratio between Nanoparticle Concentration and Droplet Concentration
title_full_unstemmed Morphology Mapping of Nanoparticle-Filled Immiscible Polymer Blends in Flow: The Existence of a Critical Ratio between Nanoparticle Concentration and Droplet Concentration
title_short Morphology Mapping of Nanoparticle-Filled Immiscible Polymer Blends in Flow: The Existence of a Critical Ratio between Nanoparticle Concentration and Droplet Concentration
title_sort morphology mapping of nanoparticle-filled immiscible polymer blends in flow: the existence of a critical ratio between nanoparticle concentration and droplet concentration
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6645428/
https://www.ncbi.nlm.nih.gov/pubmed/31459254
http://dx.doi.org/10.1021/acsomega.7b02072
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