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Multifunctional composites for improved polyimide thermal stability
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Miller, Sandi G. |
| Copyright Year | 2007 |
| Description | The layered morphology of silicate clay provides an effective barrier to oxidative degradation of the matrix resin. However, as resin thermal stability continues to reach higher limits, development of an organic modification with comparable temperature capabilities becomes a challenge. Typically, phyllosilicates used in polymer nanocomposites are modified with an alkyl ammonium ion. Such organic modifiers are not suited for incorporation into high temperature polymers as they commonly degrade below 200oC. Therefore, the development of nanoparticle specifically suited for high temperature applications is necessary. Several nanoparticles were investigated in this study, including pre-exfoliated synthetic clay, an organically modified clay, and carbon nanofiber. Dispersion of the layered silicate increases the onset temperature of matrix degradation as well as slows oxidative degradation. The thermally stable carbon nanofibers are also observed to significantly increase the resin thermal stability. |
| File Size | 549786 |
| Page Count | 9 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20070031911 |
| Archival Resource Key | ark:/13960/t7gr1wb9m |
| Language | English |
| Publisher Date | 2007-10-29 |
| Access Restriction | Open |
| Subject Keyword | Composite Materials Resin Transfer Molding Alkyl Compounds Synthesis Chemistry High Temperature X Ray Diffraction Thermal Stability Clays Degradation Nanocomposites Polyimides Thermal Conductivity Polymers Nanotechnology Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
