Polyamide-imide and Montmorillonite Nanocomposites

Solvent suspensions of a high performance polymer, Polyamide-imide (PAI) are widely used in magnetic wire coatings. Here we investigate the effect that the introduction of montmorillonite (MMT) has on PAI. MMT was introduced into an uncured PAI suspension; the sample was then cured by step-wise heat treatment. Polarized optical microscopy was used to choose the best suitable MMT for PAI matrix and to study the distribution of MMT in PAI matrix. Concentration dependent dispersion effect was studied by x-ray diffraction (XRD) and was confirmed by Transmission electron microscopy (TEM). Differential scanning Calorimetry (DSC) and Thermogravimetric analysis (TGA) was used to study impact of MMT on glass transition temperature (Tg) and degradation properties of PAI respectively. Micro-hardness testing of PAI nanocomposites was also performed. A concentration dependent state of dispersion was obtained. The glass transition (Tg), degradation and mechanical properties were found to correlate to the state of dispersion.

Grantor dc:publisher

University of North Texas

Year dc:date

2001

Author dc:creator

• Ranade, Ajit

Contributors dc:contributor

• D'Souza, Nandika Anne, 1967-
• Reidy, Richard
• Wallace, Robert M.
• Brostow, Witold, 1934-

• Nanostructured materials.
• Polyamides.
• Montmorillonite.
• nanocomposites
• Polyamide-imide
• montmorillonite
• dispersion
• glass transition

Statement dc:rights

• Public
• Copyright
• Ranade, Ajit
• Copyright is held by the author, unless otherwise noted. All rights reserved.

Language dc:language

English

Identifier

oclc: 51259625
https://digital.library.unt.edu/ark:/67531/metadc2873/
ark: ark:/67531/metadc2873

OAI identifier oai:identifier

info:ark/67531/metadc2873