High-performance nanocomposites synergistically reinforced by two-dimensional montmorillonite and zero-dimensional nanoTiO2

High-performance nanocomposites synergistically reinforced by two-dimensional montmorillonite and... Comprehensive high-performance epoxy nanocomposites were successfully prepared by co-incorporating two-dimensional montmorillonite (MMT) and zero-dimensional nanoTiO2 into epoxy. Mechanical tests and thermal analyses showed that the resulting epoxy/MMT/nanoTiO2 nanocomposites obtained great improvements over pure epoxy, epoxy/MMT nanocomposites, and epoxy/nanoTiO2 nanocomposites in tensile modulus, tensile strength, flexural modulus, flexural strength, notch impact strength, glass transition temperature, and thermal decomposition temperature. The best performance occurred with the nanocomposite containing 5 phr MMT/nanoTiO2. At this loading, the tensile modulus increased by 154.75, 35.69, and 89.56%, the tensile strength by 81.53, 143.46, and 22.01%, the flexural modulus by 21.12, 6.04, and 3.31%, the flexural strength by 25.25, 16.98, and 9.73%, the notch impact strength by 65.57, 37.23, and 25.94%, the glass transition temperature by 11.3, 12.2, and 11.4 °C, and the thermal decomposition temperature by 15.3, 3.0, and 3.2 °C as compared with those of pure epoxy, 5 phr epoxy/MMT nanocomposite and 5 phr epoxy/nanoTiO2 nanocomposite, respectively. X-ray diffraction and transmission electron microscopy inspection revealed that in the epoxy/MMT/nanoTiO2 nanocomposites, the MMT was completely exfoliated into two-dimensional nanoscale mono-platelets, which formed special intermingled structure with the zero-dimensional nanoTiO2 spheres. This study suggests that co-incorporating two proper, dimensionally different nanomaterials into polymer matrices could be a pathway to success in preparing comprehensive high-performance polymer nanocomposites. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Polymer Bulletin Springer Journals

High-performance nanocomposites synergistically reinforced by two-dimensional montmorillonite and zero-dimensional nanoTiO2

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Publisher
Springer Berlin Heidelberg
Copyright
Copyright © 2017 by Springer-Verlag GmbH Germany
Subject
Chemistry; Polymer Sciences; Soft and Granular Matter, Complex Fluids and Microfluidics; Characterization and Evaluation of Materials; Physical Chemistry; Organic Chemistry
ISSN
0170-0839
eISSN
1436-2449
D.O.I.
10.1007/s00289-017-2104-1
Publisher site
See Article on Publisher Site

Abstract

Comprehensive high-performance epoxy nanocomposites were successfully prepared by co-incorporating two-dimensional montmorillonite (MMT) and zero-dimensional nanoTiO2 into epoxy. Mechanical tests and thermal analyses showed that the resulting epoxy/MMT/nanoTiO2 nanocomposites obtained great improvements over pure epoxy, epoxy/MMT nanocomposites, and epoxy/nanoTiO2 nanocomposites in tensile modulus, tensile strength, flexural modulus, flexural strength, notch impact strength, glass transition temperature, and thermal decomposition temperature. The best performance occurred with the nanocomposite containing 5 phr MMT/nanoTiO2. At this loading, the tensile modulus increased by 154.75, 35.69, and 89.56%, the tensile strength by 81.53, 143.46, and 22.01%, the flexural modulus by 21.12, 6.04, and 3.31%, the flexural strength by 25.25, 16.98, and 9.73%, the notch impact strength by 65.57, 37.23, and 25.94%, the glass transition temperature by 11.3, 12.2, and 11.4 °C, and the thermal decomposition temperature by 15.3, 3.0, and 3.2 °C as compared with those of pure epoxy, 5 phr epoxy/MMT nanocomposite and 5 phr epoxy/nanoTiO2 nanocomposite, respectively. X-ray diffraction and transmission electron microscopy inspection revealed that in the epoxy/MMT/nanoTiO2 nanocomposites, the MMT was completely exfoliated into two-dimensional nanoscale mono-platelets, which formed special intermingled structure with the zero-dimensional nanoTiO2 spheres. This study suggests that co-incorporating two proper, dimensionally different nanomaterials into polymer matrices could be a pathway to success in preparing comprehensive high-performance polymer nanocomposites.

Journal

Polymer BulletinSpringer Journals

Published: Jun 23, 2017

References

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