Aviso: para depositar documentos, por favor, inicia sesión e identifícate con tu cuenta de correo institucional de la UCM con el botón MI CUENTA UCM. No emplees la opción AUTENTICACIÓN CON CONTRASEÑA
 

Millable polyurethane/organoclay nanocomposites: preparation, characterization, and properties

Loading...
Thumbnail Image

Full text at PDC

Publication date

2007

Advisors (or tutors)

Editors

Journal Title

Journal ISSN

Volume Title

Publisher

American Scientific Publishers
Citations
Google Scholar

Citation

Abstract

Novel millable polyurethane (PU)/organoclay nanocomposites have been successfully prepared by conventional transformation techniques. One natural (C6A) and two organically modified (C15A and C30B) montmorillonites have been used as clays for preparing PU nanocomposites. The optimum dispersion of nanofiller at a nanometer scale in PU matrix was confirmed by X-ray diffraction patterns and transmission electron microscopy. A substantial improvement of the PU properties by addition of only a small amount of organoclay was observed. It is worthy to note that the organoclays show a different interfacial interaction with the PU matrix, which was reflected in different macroscopic properties. Thus, C30B organoclay seems to react with PU chains to form covalent bonds, while C15A only interacts physically with PU chains. Mechanical and barrier properties are analyzed.

Research Projects

Organizational Units

Journal Issue

Description

© 2007 American Scientific Publishers. The authors wish to thank the CICYT, MAT 2004-00825 and the Spanish Ministry of Science and Technology (MCYT), PPQ2003-03299, for financial support and Dr. López Manchado for the concession of a Ramón y Cajal contract (MCYT).

UCM subjects

Unesco subjects

Keywords

Collections