Densely Packed Linear Assembles of Carbon Nanotube Bundles in Polysiloxane‐Based Nanocomposite Films

Abstract

Linear assemblies of carbon nanotubes (LACNTs) were fabricated and controlled in polysiloxane-based nanocomposite films and the effects of the LACNTs on the thermal and electrical properties of the films were investigated. CNTs were dispersed by mechanical stirring and sonication in a prepolymer of polysiloxane. Homogeneous suspensions were cast on polyamide spacers and oriented by linear-assembly by applying DC and switching DC electric fields before the mixture became cross-linked. Densely packed LACNTs that fixed the composite film surfaces were fabricated with various structures and thicknesses that depended on the DC and switching DC conditions. Polymer nanocomposites with different LACNT densities exhibited enhanced thermal and electrical conductivities and high optical transmittances. They are considered promising structural materials for electronic sectors in automotive and aerospace applications.

Polysiloxane-Multiwalled Carbon Nanotube Layers on Steel Substrate: Microstructural, Structural and Electrochemical Studies

“…Various strategies are applied to ensure CNTs dispersion including the incorporation of carboxylic acid groups, silanization and introduction of nano-SiO 2 . [44][45][46][47] The knowledge in the area of preparation of the nanocomposite coatings using polysiloxanes and CNTs is incomplete and requires further investigation. According to numerous results, the properties of these perspectival coatings mainly depend on the amount of nanoadditive and the method of its functionalization.…”

Internal structure control of the TiO2 nanotubes and polysiloxane nanocomposites by nanosecond pulsed electric field

“…On the other hand, sample of 5 wt% TNTs formed the LATNTs branched which are interconnected during electric field-inducement. The same branched structure was formed in the results of the electric field orientation of the carbon nanotube system [24]. The reason for forming the branched structure is influenced by the electric field from the adjacent LAT-NTs.…”

Demonstration of motion control of ZrO2microparticles in uniform/non-uniform electric field

“…Electric fields have been employed in various fields, such as the structural control of organic and inorganic composite materials and the formation of composite films by the electrophoretic deposition method. [13][14][15][16][17][18][19][20][21][22][23][24][25] The controlling technique of the driving of microstructures under an electric field is effective over a large area and can arrange the microstructures without changing the properties of the surface of the material. The electrical phenomena that affect the driving of microstructures are mainly surface potential, polarization, and electrostatic force.…”