Influence of nanocomposite preparation techniques on the multifunctional properties of carbon fabric‐reinforced polystyrene‐based composites with carbon nanotubes

Abstract

Polystyrene (PS)-based and carbon fabric-reinforced polymers (CFRPs) containing elastomer were prepared using the compression molding technique. PS was also reinforced with two types of carbon nanotubes (CNTs), as received and modified with a silane-coupling agent. Nanocomposites were fabricated with two different methods, masterbatch dilution, and direct melt mixing. The effect of the nanocomposite preparation technique on the mechanical properties, electrical resistivity, and shape memory behavior of the multilayer composites was investigated. The tensile strength and tensile modulus of the multilayer composite containing CNTs modified with silane coupling agent, and prepared with masterbatch dilution method, increased by 33% and 34%, respectively, compared with the composites prepared with melt mixing. With the masterbatch dilution technique, the electrical resistivity was lower, and slightly increased with surface modification of CNTs. In both preparation techniques, the possible combined effect of CNTs and CF on the thermal and electrical conductivity of the composites led to 100% shape recovery lower than 30 s with electrically actuated bending test.

Amine‐modified graphene enhanced mechanical properties and catalytic effect on imidization of polyimide composite films

“…However, T g decreases with increasing N-GO, and this phenomenon is relatively anomalous and has been reported by only a few researchers. [38] Furthermore, this phenomenon was also observed with PI/GO prepared by the same method, and the results demonstrated the same trend in Figure S2. A possible assumption based on the cross-sectional view of the films is that the layer structure of N-GO may cause this result.…”

Preferential localization of conductive filler in ethylene‐co‐methyl acrylate/thermoplastic polyolefin polymer blends to reduce percolation threshold and enhanced electromagnetic radiation shielding over K band region

“…Although metal has been used as the essential shielding material for a long time through reflection mechanism, in upcoming trend, polymer composites have become the new material of interest in the shielding field for their lightweight, non-corrosive nature and very easy processability. [14][15][16][17] Basically, carbonaceous fillers, [18,19] such as carbon black, [20,21] carbon nanotubes, [22,23] graphene or reduced graphene oxide, [24][25][26] and carbon fiber [27,28] were extensively used as the conducting filler in the polymer base matrix to develop efficient EMI shielding material. [29][30][31] However, uniform dispersion of filler in the matrix eventually leading to higher cost of materials is the major drawback that needs to be overcome in developing EMI shielding materials.…”

“…Basically, carbonaceous fillers, [ 18,19 ] such as carbon black, [ 20,21 ] carbon nanotubes, [ 22,23 ] graphene or reduced graphene oxide, [ 24–26 ] and carbon fiber [ 27,28 ] were extensively used as the conducting filler in the polymer base matrix to develop efficient EMI shielding material. [ 29–31 ] However, uniform dispersion of filler in the matrix eventually leading to higher cost of materials is the major drawback that needs to be overcome in developing EMI shielding materials.…”

High‐performance nano‐biocomposite ionic soft actuators based on microfibrillated cellulose/ionic liquid electrolyte membrane

“…Among these typical soft actuators including dielectric actuators, magnetic actuators, ionic actuators, piezoelectric actuators, and light‐responsive actuators, ionic actuators have attracted increasing interests, owing to their low actuation voltage, large bending strain, self‐sensing, quick response, and flexibility. [ 11–20 ] Therefore, ionic actuators based on these unique properties have great potential in artificial muscles, soft fingers, soft robots, biomimetic robots, flexible electronics, and biomedical active devices. [ 21–29 ]…”