Abstract
Dynamic mechanical properties of composites, glass reinforced aromatic polyamideimide and BT resin, were measured by means of flextural osillation with a du pont 980 Dynamic Mechanical Analyzer (DMA), and tensile osillations with a Rheovibron DDV-II-C were used for comparison.
Corresponding molecular relaxations were found for each osillation mode.
It was found that flextural osillation mode (DMA) is particularly sensitive for a part of composites with low rigidity, while tensile osillation mode is susceptive for a part of composites with high rigidity.
DMA is especially well suited for study of dynamic mechanical properties of polymer composites.
