Influence of Filler Dispersion on the Mechanical Properties of Nanocomposites. (2016)

• Record Type: Journal Article
• Authors: Cosmoiu, Ioana; Apostol, Dragos A.; Picu, Catalin R.; Constantinescu, Dan M.; Sandu, Marin; Sorohan, Stefan
• Is Part Of: Materials today. Volume 3:Number 4(2016)
• Page Start: 953
• Page End: 958
• Publication Date: 2016
• Subjects: Nanocomposites -- manufacturing technologies -- mechanical properties.; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2016.03.027
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: Specific manufacturing technologies were applied for the fabrication of epoxy-based nanocomposites with multi-wall carbon nanotubes (MWNT) and nanoparticles (silica and alumina). For dispersing the fillers in the epoxy resin special equipment such as a shear mixer and a high energy sonicator with temperature control were used. The considered filling fractions were, in most cases, 0.1, 0.3 and 0.5 wt%. Usually, the dispersion process (mechanical mixing and sonication) cannot be completed successfully if the percentage is increased above 3 wt%. The nanocomposites were subjected to monotonic uniaxial testing using standardized traction specimens. Only an adequate dispersion of fillers may lead to an increase of strength and stiffness.