Volume 136, Issue 2 46920
Article

Molecular interactions arising in polyethylene-bentonite nanocomposites

A. E. Bonilla-Blancas

A. E. Bonilla-Blancas

Centro de Tecnología Avanzada CIATEQ A.C. -Centro de Tecnología Avanzada. Circuito de la Industria Poniente No. 11, lt. 11, Parque Industrial ex Hacienda Dona Rosa, Lerma, Estado de México, Mexico

Search for more papers by this author
I. C. Romero-Ibarra

Corresponding Author

I. C. Romero-Ibarra

Unidad Profesional Interdisciplinaria en Ingeniería y Tecnologías Avanzadas-Instituto Politécnico Nacional, Av. IPN No. 2580, Gustavo A. Madero, C.P, 07340, Ciudad de México, Mexico

Correspondence to: I. C. Romero-Ibarra (E-mail: [email protected])Search for more papers by this author
J. Vazquez-Arenas

J. Vazquez-Arenas

Centro Mexicano para la Producción más Limpia, Instituto Politécnico Nacional, Avenida Acueducto s/n, Col. La Laguna Ticomán, 07340, Ciudad de México, Mexico

Search for more papers by this author
A. Sanchez-Solis

A. Sanchez-Solis

Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Ciudad Universitaria, A.P. 70-360, Ciudad de México, 04510, Mexico

Search for more papers by this author
O. Manero

O. Manero

Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Ciudad Universitaria, A.P. 70-360, Ciudad de México, 04510, Mexico

Search for more papers by this author
J. Alvarez-Ramirez

J. Alvarez-Ramirez

Departamento de Ingeniería de Procesos e Hidráulica, Universidad Autónoma Metropolitana-Iztapalapa, Apartado Postal 55-534, Ciudad de México, 09340, Mexico

Search for more papers by this author
First published: 19 September 2018
Citations: 9

ABSTRACT

High density polyethylene (HDPE), linear low density polyethylene (LLDPE) and low density polyethylene (LDPE) are blended, and compared against a similar mixture but functionalized LDPE with maleic anhydride (MAh), HDPE-LLDPE-LDPE-g-MAh. In order to obtain nanocomposites from these polymer blends, a modified bentonite was added by incorporating l-lysine into the bentonite galleries by melt extrusion. The resulting nanocomposites presented improved mechanical properties linked to strong polymer-bentonite interactions and exfoliated structures as verified by transmission electron microscopy and rheometry. A detailed analysis of the feasible polymer-bentonite interactions was conducted, of particular concern between the polar MAh groups and the intercalated l-lysine. To gain further insights into the type of molecular interactions (i.e. polymer-bentonite), a model nanocomposite was synthesized in solution to carry out further assessments through NMR, infrared spectroscopy and rheology analysis. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 46920.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.