Materials characterization of advanced fillers for composites engineering applications

Abstract

Four different minerals were investigated; hollow spheres of calcium carbonate, platy mica, needle like wollastonite and glassy perlite and characterized via iGC for surface energy, Freeman powder rheology for flow characterization, cyclic uniaxial die compaction for modulus of elasticity and frequency dependent sound absorption properties. Particle surface energy and particle shape strongly affected the packing density of powder beds. In the case of higher porosity and thus lower bulk density, the powders acoustic absorption was higher in comparison with higher packing density materials. Surface energy profiles and surface energy distributions revealed clear convergence with powder rheology data, where the character of the powder flow at defined consolidation stresses was mirroring either the high cohesion powders properties connected with the high surface energy or powder free flowing characteristics, as reflected in low cohesion of the powder matrix.

Silane-Treated Muscovite as Reinforcement for 3D-Printed ABS via Fused Deposition Modeling

“…The ETM fillers also displayed high aspect ratios which generally translate to high reinforcing potential. Platy fillers provide reinforcement along both dimensions of its plate compared to fibers which reinforce only along its axial dimension [12]. Thus, platy fillers offer greater reinforcing potential than fibers of equivalent aspect ratio.…”

Progress in magnetic Fe3O4nanomaterials in magnetic resonance imaging

“…Similarly, nanomaterials mixed with other metals can improve contrast performance and have favored attentions interest recently [50]. Luminomagnetic nanoparticles that possessed core/shell structures (and Fe 3 O 4 NPs coated with luminescent material) show some advantages [51]. Although optical imaging and magnetic imaging can be achieved because of the existence of rare earth up-conversion fluorescent nanoparticles, the imaging effect is not ideal, especially magnetic imaging [52].…”

Effect of cinnamon essential oil on morphological, flammability and thermal properties of nanocellulose fibre–reinforced starch biopolymer composites

“…None of the preceding studies, based on a literature survey, has discussed the effects of CEO on the flammability and thermal stability as well as morphology of biopolymer composites of SPN reinforced with SPS. It is well known in composites that the use of nanofillers such as nanocelluloses is important in influencing the composite properties such as thermal performances [70]. Lapčík et al [70] reported that nanofillers are commonly used for structural and non-structural components, and packaging as well as advanced coating applications.…”

“…It is well known in composites that the use of nanofillers such as nanocelluloses is important in influencing the composite properties such as thermal performances [70]. Lapčík et al [70] reported that nanofillers are commonly used for structural and non-structural components, and packaging as well as advanced coating applications. Therefore, this study aimed to investigate the possible effects of using EO as fillers on the flammability, thermal stability and morphological properties of SPN/SPS biopolymer composites at different loadings.…”