Unsaturated polyester-poly(epsilon-caprolactone) hybrid nanocomposites: Thermal-mechanical properties

Salom Coll, Catalina and Calvo del Valle, Silvia and Gonzalez Prolongo, Margarita and Masegosa Fanego, Rosa María (2014). Unsaturated polyester-poly(epsilon-caprolactone) hybrid nanocomposites: Thermal-mechanical properties. "Polymer composites", v. 35 (n. 5); pp. 827-838. ISSN 0272-8397. https://doi.org/10.1002/pc.22726.

Description

Title: Unsaturated polyester-poly(epsilon-caprolactone) hybrid nanocomposites: Thermal-mechanical properties
Author/s:
  • Salom Coll, Catalina
  • Calvo del Valle, Silvia
  • Gonzalez Prolongo, Margarita
  • Masegosa Fanego, Rosa María
Item Type: Article
Título de Revista/Publicación: Polymer composites
Date: May 2014
ISSN: 0272-8397
Volume: 35
Subjects:
Freetext Keywords: Unsaturated polyester; poly(ɛ-caprolactone); organo-clay; glass transition; storage modulus; tensile properties
Faculty: E.T.S.I. Aeronáuticos (UPM)
Department: Materiales y Producción Aeroespacial
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

This paper reports on the thermal behavior and mechanical properties of nanocomposites based on unsaturated polyester resin (UP) modified with poly(ɛ-caprolactone) (PCL) and reinforced with an organically modified clay (cloisite 30B). To optimize the dispersion of 30B and the mixing of PCL in the UP resin, two different methods were employed to prepare crosslinked UP–PCL-30B hybrid nanocomposites. Besides, two samples of poly(ɛ-caprolactone) of different molecular weight (PCL2: Mn = 2.103g.mol−1 and PCL50: Mn = 5.104g.mol−1) were used at several concentrations (4, 6, 10 wt%). The 30B concentration was 4 wt% in all the nanocomposites. The morphology of the samples was studied by scanning electron microscopy (SEM). The analysis of X-ray patterns reveals that intercalated structures have been found for all ternary nanocomposites, independently of the molecular weight, PCL concentration and the preparation method selected. A slight rise of the glass transition temperature, Tg, is observed in UP/PCL/4%30B ternary nanocomposites regarding to neat UP. The analysis of the tensile properties of the ternary (hybrid) systems indicates that UP/4%PCL2/4%30B nanocomposite improves the tensile strength and elongation at break respect to the neat UP while the Young modulus remains constant

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainMAT 2009-11083UnspecifiedUnspecifiedUnspecified

More information

Item ID: 37426
DC Identifier: http://oa.upm.es/37426/
OAI Identifier: oai:oa.upm.es:37426
DOI: 10.1002/pc.22726
Official URL: http://onlinelibrary.wiley.com/doi/10.1002/pc.22726/abstract
Deposited by: Memoria Investigacion
Deposited on: 05 Feb 2016 17:39
Last Modified: 05 Feb 2016 17:39
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