New Hybrid Materials Based on Modified Halloysite and Unsaturated Polyester Resin

Abstract

New hybrid materials based on unsaturated polyester resin and modified halloysite with different coupling agents were synthesized. The effect of functional groups grafted on the surface of halloysite against the properties of the final hybrids was studied using different characterization methods. The results of dynamic mechanical analyses showed that the glass transition temperature value of hybrids was strongly influenced by the halloysite modifier type. The concentration of halloysite and the modifier agent type influence the thermal stability of final hybrid materials.

Keywords:

• Halloysite
• Hybrid materials
• Unsaturated polyester resin
• X-ray photoelectron spectroscopy

ACKNOWLEDGMENT

The work has been funded by the Sectoral Operational Programme Human Resources Development 2007-2013 of the Romanian Ministry of Labour, Family and Social Protection through the Financial Agreement POSDRU/88/1.5/S/61178.

Notes

T_onset*- the temperature at which the mass loss is 5%.