We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Mechanical properties of epoxy composites based on silver nanoparticles formed in situ.
- Authors
Bogdanova, L.; Kuzub, L.; Dzhavadyan, E.; Torbov, V.; Dremova, N.; Pomogailo, A.
- Abstract
The mechanical and thermomechanical properties of metal-containing epoxy composite films based on silver nanoparticles synthesized in situ are investigated. There is a nonmonotonic dependence of the mechanical properties on the concentration of silver myristate used as a precursor. It is found for the first time that the breaking strength and elastic modulus increase by a factor of 1.8-1.5 relative to those of the unmodified matrix at a small concentration of precursor nanoparticles (on the order of 0.1 wt %). DSC and thermomechanical studies reveal that the glass-transition temperature decreases slightly (by 5-6°C) as the precursor concentration is increased to 0.5 wt %, thereby suggesting a weak plasticization of the modified epoxy matrix. On the basis of the spectrophotometry data measured in the region of surface plasmon resonance of silver nanoparticles (420-425 nm) and SEM data, it is inferred that the in situ strengthening of an epoxy nanocomposite based on epoxy resin ED-20, triethylamine, and silver myristate is attained because silver nanoparticles smaller than 20 nm in size and having a narrow particle-size distribution are formed during curing.
- Subjects
EPOXY resins; SILVER nanoparticles; NANOSTRUCTURED materials synthesis; MECHANICAL behavior of materials; CHEMICAL precursors; PARTICLE size distribution
- Publication
Polymer Science -- Series A, 2014, Vol 56, Issue 3, p304
- ISSN
0965-545X
- Publication type
Article
- DOI
10.1134/S0965545X14030031