NDLI: Effect of clay dispersion methods on the mechano-dynamical and electrical properties of epoxy

Content Provider	Springer Nature Link
Author	Thelakkadan, A. S. Coletti, G. Guastavi, F. Fina, A.
Copyright Year	2012
Abstract	The effect of different clay dispersion methods on the mechano-dynamical and electrical properties of epoxy/clay nanocomposites was investigated. Three different clay dispersion methods (high-speed mechanical shearing, ultrasonication (US), and an optimal combination of high-speed shearing and US) were used for the dispersion of the clay in the epoxy resin. 3 wt% of an organoclay, cloisite 30B, was used as the nanoclay. Wide-angle X-ray diffraction technique and electron microscopic techniques (SEM and TEM) were used to study the morphology of the nanocomposites. Dynamic mechanical analysis was used to study the dynamo-mechanical properties. Studies on the dielectric breakdown strength (EBD) of the nanocomposites show that the EBD strongly depends on the clay dispersion time and clay dispersion method. Pulsed electro-acoustics method measurement shows that the space charge accumulation was considerably reduced in the nanocomposites. In particular, reduction in space charges after polarization depends on the dispersion of the nanofillers, the better the degree of dispersion, the lower the space charges observed.
Starting Page	489
Ending Page	506
Page Count	18
File Format	PDF
ISSN	01700839
Journal	Polymer Bulletin
Volume Number	70
Issue Number	2
e-ISSN	14362449
Language	English
Publisher	Springer-Verlag
Publisher Date	2012-08-07
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Nanocomposites Organoclay Mechanical properties Glass transition Polymer Sciences Soft and Granular Matter, Complex Fluids and Microfluidics Characterization and Evaluation of Materials Physical Chemistry
Content Type	Text
Resource Type	Article
Subject	Chemistry Materials Chemistry Condensed Matter Physics Polymers and Plastics

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