Synthesis, Characterization and Mechanical Properties of Nanocomposites Based on Novel Carbon Nanowires and Polystyrene

Abstract

Carbon into polymer nanocomposite is so far a common additive for the enhancement of the polymer properties. The properties of the polymer, such as thermal, and especially its mechanical properties, are improved by the homogeneously dispersed carbon nanoparticles on the polymer matrix. In this study, carbon wires in nano dimensions are, for the very first time, synthesized via the hard templating method from the silicate matrix MCM-41, and used as nano additives of polystyrene. The carbon nanowires were chemically oxidized, and further modified by attaching octadecylamine molecules, for the development of organic functionalities onto carbon nanowires surface. The nanocomposite materials of polystyrene with the modified carbon nanowires were prepared by a solution-precipitation method at three nano additive to polymer loadings (1, 3 and 5 wt%). The as-derived nanocomposites were studied with a combination of characterization and analytical techniques. The results showed that the thermal and mechanical properties of the polystyrene nanocomposites gradually improved while increasing nano-additive loading until 3 wt%. More specifically, the 3 wt% loading sample showed the best mechanical properties, while the 5 wt% sample was difficult to achieve satisfactory dispersion of carbon nanowires and consequently has a wide range of values.

Functionalized Multiwalled Carbon Nanotubes for the Improvement of Dispersion Stability in Diesel Fuel‐type for Potential Application as Nano Additives

“…To identify the signals related to the aliphatic chain they have been marked with dots, the signals at 2920 and 2850 cm −1 correspond to the symmetric and antisymmetric extension of the C−H bond respectively, [34] and the signal at 1467 cm −1 is related to the scissor vibration of CH 2 [35] . The intensity of the bands is higher for CNT functionalized with amines compared to pristine CNT, oxidized, and functionalized using long‐chain alcohols and carboxylic acids; indicating a greater presence of aliphatic chain on the sample, as could be expected considering the results of the thermogravimetric analysis and the better surface addition of amines over oxygen compounds.…”

Improved mechanical properties of multiwalled carbon nanotube reinforced acrylonitrile butadiene styrene nanocomposites prepared by twin screw extruder

“…On the other hand, the spectra of a separate wt.% of the MWCNTS sample indicate oxidation on the carbon surface. 50,51 On comparing the graphs, a minimal difference between single-and double-extruded MWCNTs/ ABS nanocomposite was found. Figure 5(d) shows the peak of pure MWCNTs shows peek 406, 1045, 2975 and 3380 cm −1 in its top level.…”

“…During the thermal decomposition of the polymer composite, MWCNTs acts as a barrier for decreasing product volatilization and heat transport. 46,[50][51][52][53]…”

“…Due to the addition of MWCNTs and ABS, the immobilization of Crown-rump Length and the diffraction patterns showed that pure MWCNTs, ABS, and MWCNTs/ ABS composites were amorphous in nature. 50 Despite the functionalization process, the ABS structure remained amorphous in the nanocomposites containing MWCNTs. It is plausible to deduce that the percentage of MWCNTs can be well spread only using a simple melt mixing approach.…”