Probing the Nanostructure and Reactivity of Epoxy-Amine Interphases.

ABSTRACT: Understanding and controlling the structure of interphase regions in epoxy resins have been a long-standing goal in high-performance composite and coating development, since these are widely considered to be weak points in the microstructure of these materials, determining key properties such as fracture strength and barrier performance. These buried nanoscale regions are, however, inaccessible to conventional analytical techniques, and little is understood about their underlying formation mechanism. Here, we combine molecular dynamics (MD) simulation with nanoscale infrared chemical mapping to develop new understanding of the interphase using model epoxy-amine binders composed of diglycidyl ether of bisphenol A (DGEBA) cross-linked using m-xylylenediamine (MXDA). Iron oxide powders

SUBMITTER: Morsch S 

PROVIDER: S-EPMC11660148 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature