Fabrication and Characterization of Aluminum Nanoparticle-Reinforced Composites

Abstract

With the expanding use of polymers in modern our lives, there is an increasing need to manufacture advanced engineering polymeric parts in a systematic and inexpensive way. Herein, we developed an organic inorganic hybrid composite material with excellent mechanical properties by enhancing the dispersion and moldability of fillers. For this, we prepared and analyzed the physical properties of acrylonitrile butadiene styrene (ABS)/aluminum nanoparticle composites. Al nanoparticles of various sizes (20 nm and 40 nm) and concentrations (3, 6, 9, and 12 wt.%) were employed. The mechanical properties of the prepared composites were measured using a universal testing machine. Rheological and thermal analyses for the composites were carried out with use of a rheometer and a differential thermal calorimeter (DSC). We also conducted optical, chemical, electrical, and morphological property studies of the samples in order to help design and produce high-performance engineering products.

Rheological Behaviour of ABS/Metal Composites with Improved Thermal Conductivity for Additive Manufacturing

“…Overall, the mechanical behaviour observed under tensile loading follows a trend of increasing E and reducing εB as the filler content increases, as also reported by previous studies [1,9,41,57,66]. Moreover, E displays a linear dependence (R 2 = 0.9881) upon the volume fraction of the filler, regardless of the filler's nature (Figure 4).…”

“…On the other hand, considering that the flowability of a polymer is inversely proportional to the dynamic viscosity, it is well known that the melt flow behaviour (MFB) is an important parameter for 3D printing as the printed parts' precision and interlayer adhesion may be affected by both the shear thinning effect (which determines the pressure needed to push the material through the nozzle) and the temperature parameters (which will ultimately govern the mechanical properties and integrity of the printed parts) [43,[47][48][49][50]. Dynamic oscillatory rheometry has been employed to determine the appropriate processing conditions for high-performance thermoplastics in the form of AM feedstock, as it provides a more comprehensive rheological profile of such materials, such as including other linear viscoelastic properties of interest, e.g., melt storage modulus (G ) and complex viscosity (η*), and it has been successfully utilised to characterise ABS composites [51][52][53][54][55][56][57].…”

Enhancement of near-field thermal radiation between composite materials with gradient plasmonic nanoparticles

“…This condition not only simplifies the derivation of the formula, but also represents the actual situation when production is limited by factors such as the stability and production cost. 37,38 In this case, the inhomogeneous spherical GNPs with radius a which have a space-dependent gradient permittivity e(r) can be substituted with a homogeneous sphere of an equivalent permittivity property e(r = a). To obtain the equivalent permittivity, one can solve the following differential equation with the initial condition e(r = 0) = 1, 30…”

“…This condition not only simplifies the derivation of the formula, but also represents the actual situation when production is limited by factors such as the stability and production cost. 37,38 In this case, the inhomogeneous spherical GNPs with radius a which have a space-dependent gradient permittivity ε ( r ) can be substituted with a homogeneous sphere of an equivalent permittivity property ( r = a ). To obtain the equivalent permittivity, one can solve the following differential equation with the initial condition ( r = 0) = 1, 30 In the final step, once the equivalent permittivity ( r = a ) of GNPs is obtained, the effective permittivity ε e of CMs can be easily obtained using the well-known Maxwell–Garnett approximation: 39 Here, we would like to remind that the calculated equivalent permittivity of GPNs, obtained by solving eqn (5), is independent of the radius a .…”

Acrylonitrile Butadiene Styrene-Based Composites with Permalloy with Tailored Magnetic Response

“…In particular, the effect of filler inclusion on the mechanical properties, electrical conductivity, electromechanical response and electromagnetic shielding has been evaluated, often based on the inclusion of carbonaceous-based fillers, such as multiwall carbon nanotubes (MWCNTs) [ 24 , 25 , 26 ], graphene [ 26 , 27 , 28 ] or carbon black [ 29 , 30 , 31 ], among others. The incorporation of a variety of inorganic fillers into the polymer ABS matrix has been also addressed [ 32 , 33 , 34 ].…”