Effect of Carbon Nanoparticles Morphology on the Properties of Poly(styrene-b-isoprene-b-styrene) Elastomer Composites

Abstract

Though nanomaterials based on carbon have been widely used for the preparation of high-performance polymeric nanocomposites, there are few works focused on the effect of carbon nanoparticle morphology on the performance of corresponding polymer nanocomposites. Therefore, four representative carbon nanoparticles, including fullerene, carbon nanotubes, graphene, and carbon black incorporated poly(styrene-b-isoprene-b-styrene) (SIS) elastomer nanocomposites were fabricated using the solvent casting method. In addition, the effect of carbon nanoparticle morphology on the rheological, mechanical, electrical, and thermal properties of the obtained polymeric nanocomposites was systematically investigated. The results showed that the shape of carbon nanoparticles has a different effect on the properties of the obtained elastomer nanocomposites, which lays the foundation of carbon nanoparticle screening for high-performance polymer nanocomposite construction.

Synergistic Effect of Aluminum Nitride and Carbon Nanotube-Reinforced Silicon Rubber Nanocomposites

“…Except for the AlN/SR composite, all of the obtained composites had a higher value of Shore A hardness than that of pure SR. The hardness of pure SR was 56, and with the incorporation of a single component of AlN particles, the hardness decreased to 53, which was due to the plasticizing effect of micron-sized granular AlN under a low loading percentage [ 17 , 43 ]. With the incorporation of a single component of CNT, the highest hardness of 66 was observed for the obtained CNT/SR composites.…”

“…Though the surface resistivity decreased obviously with the filling of CNTs, there was no conductive network constructed within the composites. The surface resistivity of all obtained composites was higher than 10 6 Ω/☐, demonstrating that the conductivity was enhanced via the hopping mechanism with isolated filler particles [ 17 , 50 , 51 , 52 ].…”

“…As electronic packaging materials are always used at high temperatures for a very long time, such as lithium batteries and light-emitting diodes, the investigation of the thermal decomposition behavior of the obtained AlN/CNT/SR composites is very important for practical applications [ 6 , 17 ]. Thermogravimetric analysis (TGA) was performed to evaluate the decomposition behavior of pure SR and different SR composites, and the results are shown in Figure 9 .…”

“…Though the surface resistivity decreased obviously with the filling of CNTs, there was no conductive network constructed within the composites. The surface resistivity of all obtained composites was higher than 10 6 Ω/, demonstrating that the conductivity was enhanced via the hopping mechanism with isolated filler particles [17,[50][51][52]. All of the obtained composites had a surface resistivity higher than 10 12 Ω/, which means that the fabricated AlN/CNT/SR composites featured electrical insulation [41,53].…”

“…To address the deficiency of single filler-incorporated polymer composites, a synergistic effect based on hybrid fillers was developed for the construction of high-performance composites [ 16 , 17 , 18 , 19 , 20 , 21 , 22 ]. The hybrid filler system can accelerate the construction of a continuous filler structure and upgrade the dispersion/exfoliation of each filler.…”