Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Clay-induced degradation during the melt reprocessing of waste polycarbonate
Year:2013
Research Areas
  • Macromolecules and polymers
Information
Abstract
The addition of small amounts of organoclays during the reprocessing of waste polycarbonates (WPCs) is a promising method for improving the properties of the recycled plastics. However, the clays can also induce the degradation of the polymer during the melt compounding and thus lower the properties of the final materials. This clay-induced degradation of polycarbonate (PC) was examined in this study. A WPC, a virgin PC (VPC) (that served as a comparison), and two commercial montmorillonites, Cloisite 15A and Cloisite 30B, were melt compounded in a twin-screw microextruder. The degradation of the polymer, which caused the formation of phenolic compounds and the reduction of the average molar mass, was monitored with UV spectroscopy, thermogravimetric (TG) analysis, and solution viscosimetry. The results reveal that the effect of the clays on the degradation depended on the amount of clay used and the chemical nature of the organic modification. When small amounts of the appropriate clay were used, the polymer degradation was minimized, and a net improvement of some properties of the recycled PC was achieved.
International
Si
JCR
Si
Title
Journal of Applied Polymer Science
ISBN
0021-8995
Impact factor JCR
1,289
Impact info
Datos JCR del año 2011
Volume
10.1002/app.39997
Journal number
From page
1
To page
8
Month
SIN MES
Ranking
Participants
  • Autor: María Ulagares de la Orden
  • Autor: Davinia Pascual
  • Autor: Cristina Muñoz
  • Autor: Vicente Lorenzo Esteban (UPM)
  • Autor: Joaquin Maria Martinez Urreaga (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Polímeros, Caracterización y Aplicaciones
  • Departamento: Ingeniería Química Industrial y del Medio Ambiente
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)