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Dynamic mechanical analysis and morphology of nanostructured acrylic coatings

Published online by Cambridge University Press:  16 March 2015

Rubén Castillo-Pérez ,
Ángel Romo-Uribe  and
Jamil Baghdachi
Rubén Castillo-Pérez
Affiliation:
Laboratorio de Nanopolimeros y Coloides, Instituto de Ciencias Fisicas, Universidad Nacional Autonoma de Mexico, Cuernavaca Mor. 62210, MEXICO. Departamento de Ingeniería Química Metalúrgica, Facultad de Química, Universidad Nacional Autonoma de Mexico, Mexico D.F. 04510, MEXICO.
Ángel Romo-Uribe*
Affiliation:
Laboratorio de Nanopolimeros y Coloides, Instituto de Ciencias Fisicas, Universidad Nacional Autonoma de Mexico, Cuernavaca Mor. 62210, MEXICO.
Jamil Baghdachi
Affiliation:
Coatings Research Institute, Eastern Michigan University, Ypsilanti MI 48197, U.S.A.
*
*To whom correspondence should be addressed: [email protected]
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Abstract

The addition of nanoparticles into polymeric materials has changed dramatically the properties of the host polymers, promising a novel class of composite materials with different properties and added functionalities. This research focuses on the influence of inorganic nanospheres particles such as SiO2, Al2O3, Fe2O3, TiO2 and nanoplatelets, such as Bentonite nanoclay, on the thermo-mechanical properties of a polyacrylic latex (utilized in commercial coatings). The analysis of the thermal and mechanical properties showed a decrease of Young's modulus and glass transition temperature Tg in the presence of spherical nanoparticles. However, there was an increase of these properties in the presence of nanoplatelets (Bentonite), as demonstrated by the dynamic mechanical analysis and uniaxial tensile analysis. Moreover, water contact angle measurements demonstrated significant increase in hydrophobic behavior when incorporating nanosphere particles as compared to nanoplatelets. These results showed that the metallic oxides nanoparticles greatly influenced the physical and mechanical properties of the neat polyacrylic matrix.

Keywords

coatingpolymernanostructure
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1767: Symposium 5C – New Trends in Polymer Chemistry and Characterization , 2015 , pp. 81 - 86
Copyright
Copyright © Materials Research Society 2015 

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References

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