Effect of shear rate and pressure on the crystallization of PP nanocomposites and PP/PET polymer blend nanocomposites

Leire Sangroniz; Martin van Drongelen; Ruth Cardinaels; Antxon Santamaria; Gerrit W.M. Peters; Alejandro J. Müller

doi:10.1016/j.polymer.2019.121950

Effect of shear rate and pressure on the crystallization of PP nanocomposites and PP/PET polymer blend nanocomposites

Leire Sangroniz, Martin van Drongelen, Ruth Cardinaels, Antxon Santamaria, Gerrit W.M. Peters^*, Alejandro J. Müller^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

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Abstract

The effect of shear flow on the crystallization of homopolymers has been widely studied, however more complex systems such as nanocomposites or polymer blends nanocomposites (PBNANOs) have received less attention. In this work, the effect of pressure and shear flow on the crystallization process of polypropylene-based nanocomposites and polypropylene/polyethylene terephthalate PBNANOs have been studied employing dilatometry (PVT), X-ray, rheology, and DSC. The material systems used allow studying the effect of shear in the presence of nanoparticles that do not have a nucleating effect, as well as the combined effect of shear and nucleating nanoparticles. Nucleating nanoparticles increase the crystallization temperature more significantly because of the combined effect of nucleation and flow. For carbon nanotubes, nucleation is more pronounced due to stronger interactions with PP chains, as demonstrated by rheological measurements. For PBNANOs the effect of shear on crystallization is more significant due to the higher amount of available surfaces.

Original language	English
Article number	121950
Journal	Polymer
Volume	186
Early online date	31 Oct 2019
DOIs	https://doi.org/10.1016/j.polymer.2019.121950
Publication status	Published - 9 Jan 2020

Keywords

UT-Hybrid-D
Nanocomposites
Polymer blend nanocomposites
Pressure
Shear flow
Crystallization
22/2 OA procedure

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10.1016/j.polymer.2019.121950

1-s2.0-S0032386119309565-mainFinal published version, 2.55 MBLicence: Taverne

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title = "Effect of shear rate and pressure on the crystallization of PP nanocomposites and PP/PET polymer blend nanocomposites",

abstract = "The effect of shear flow on the crystallization of homopolymers has been widely studied, however more complex systems such as nanocomposites or polymer blends nanocomposites (PBNANOs) have received less attention. In this work, the effect of pressure and shear flow on the crystallization process of polypropylene-based nanocomposites and polypropylene/polyethylene terephthalate PBNANOs have been studied employing dilatometry (PVT), X-ray, rheology, and DSC. The material systems used allow studying the effect of shear in the presence of nanoparticles that do not have a nucleating effect, as well as the combined effect of shear and nucleating nanoparticles. Nucleating nanoparticles increase the crystallization temperature more significantly because of the combined effect of nucleation and flow. For carbon nanotubes, nucleation is more pronounced due to stronger interactions with PP chains, as demonstrated by rheological measurements. For PBNANOs the effect of shear on crystallization is more significant due to the higher amount of available surfaces.",

keywords = "UT-Hybrid-D, Nanocomposites, Polymer blend nanocomposites, Pressure, Shear flow, Crystallization, 22/2 OA procedure",

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AU - Sangroniz, Leire

AU - van Drongelen, Martin

AU - Cardinaels, Ruth

AU - Santamaria, Antxon

AU - Peters, Gerrit W.M.

AU - Müller, Alejandro J.

N1 - Elsevier deal

PY - 2020/1/9

Y1 - 2020/1/9

N2 - The effect of shear flow on the crystallization of homopolymers has been widely studied, however more complex systems such as nanocomposites or polymer blends nanocomposites (PBNANOs) have received less attention. In this work, the effect of pressure and shear flow on the crystallization process of polypropylene-based nanocomposites and polypropylene/polyethylene terephthalate PBNANOs have been studied employing dilatometry (PVT), X-ray, rheology, and DSC. The material systems used allow studying the effect of shear in the presence of nanoparticles that do not have a nucleating effect, as well as the combined effect of shear and nucleating nanoparticles. Nucleating nanoparticles increase the crystallization temperature more significantly because of the combined effect of nucleation and flow. For carbon nanotubes, nucleation is more pronounced due to stronger interactions with PP chains, as demonstrated by rheological measurements. For PBNANOs the effect of shear on crystallization is more significant due to the higher amount of available surfaces.

AB - The effect of shear flow on the crystallization of homopolymers has been widely studied, however more complex systems such as nanocomposites or polymer blends nanocomposites (PBNANOs) have received less attention. In this work, the effect of pressure and shear flow on the crystallization process of polypropylene-based nanocomposites and polypropylene/polyethylene terephthalate PBNANOs have been studied employing dilatometry (PVT), X-ray, rheology, and DSC. The material systems used allow studying the effect of shear in the presence of nanoparticles that do not have a nucleating effect, as well as the combined effect of shear and nucleating nanoparticles. Nucleating nanoparticles increase the crystallization temperature more significantly because of the combined effect of nucleation and flow. For carbon nanotubes, nucleation is more pronounced due to stronger interactions with PP chains, as demonstrated by rheological measurements. For PBNANOs the effect of shear on crystallization is more significant due to the higher amount of available surfaces.

KW - UT-Hybrid-D

KW - Nanocomposites

KW - Polymer blend nanocomposites

KW - Pressure

KW - Shear flow

KW - Crystallization

KW - 22/2 OA procedure

U2 - 10.1016/j.polymer.2019.121950

DO - 10.1016/j.polymer.2019.121950

M3 - Article

AN - SCOPUS:85075377892

SN - 0032-3861

VL - 186

JO - Polymer

JF - Polymer

M1 - 121950

ER -

Effect of shear rate and pressure on the crystallization of PP nanocomposites and PP/PET polymer blend nanocomposites

Abstract

Keywords

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