Facile Fabrication of PA66/GO/MWNTs-COOH Nanocomposites and Their Fibers

Abstract

Good dispersion and interfacial compatibility are the key issues to realize the full potential of the physical–mechanical properties of nanocarbon-materials reinforced composites. Styrene–maleic-anhydride-copolymer (SMA)-treated graphene oxide (GO), carboxylated multiwalled carbon nanotubes (MWNTs-COOH), and solid-state shear milling (S3M) were applied to further improve the physical–mechanical properties of the nanocomposite fibers. The results show that a mixture of GO/MWNTs-COOH exhibits good dispersion and interfacial compatibility in polyamide-66 (PA66) matrix. Consequently, the physical–mechanical properties of the fibers, which were spun from the nanocomposite of GO/MWNTs-COOH treated using SMA and S3M methods, show a significant enhancement compared to the untreated fibers as well as better crystallization and thermal properties. In particular, the tensile strength of the PA66/GO/MWNTs-COOH nanocomposite fibers with a loading of 0.3 wt % GO/MWNTs-COOH reaches a maximum (979 MPa), which is the highest among all of the reported literature values. Moreover, the fibers were fabricated by a facile process with efficiency, holding great potential for industrial applications.

Fabrication of High Performance PET/TLCP Fibers through the Synergistic Interfacial Enhancement and Compatibilization of Functional 1D and 2D Carbon Nanomaterials

“…Previous reports showed that the effect of the synergistic reinforcement was the most effective when GO and MWCNTs were mixed at a mass ratio of 2:3. [ 45,46 ] Taking the TLCP/GO‐MA/MWCNTs‐NH 2 mixture as an example, the GO‐MA and MWCNTs‐NH 2 with a mass ratio of 2:3 were ground in a planetary ball‐mill at a constant rotational rate of 100 rpm for 15 min. The GO‐MA/MWCNTs‐NH 2 mixture and the dried TLCP were then added to the high‐speed kitchen blender (1000 W, 50 Hz) equipped with a four‐pointed star‐shaped blade.…”

Designing the organoplastics based on aromatic polyamide, study of their operational properties and applicability

“…Currently, in order to design composites for antifrictional purposes, other fibrous fillers are also actively used, among which the important role belongs to organic fibers (OF) [10,11]. The expediency of using different OF for reinforcing polyamides is confirmed by the improved tribotechnical and thermophysical characteristics [12,13].…”

The effect of reinforcement aspect ratio on the performance of PA66 composites with recycled carbon fiber and upcycled graphene nanoplatelets: An interface characterization from process to modeling

“…The incorporation of micro and nanoscale additives into PAs to increase the mechanical properties while maintaining the overall weight became an important research subject. [15][16][17] Mainly; SiO 2, 18 clay, 19 calcium carbonate, 20,21 and carbonaceous materials such as carbon nanotubes, 22,23 carbon fiber (CF), 24 carbon black (CB), 25 exfoliated graphite, 26 and lately graphene 27 and graphenerelated materials 28,29 are being used to enhance the mechanical properties of polymers while maintaining the desired weight. Nevertheless, several challenges remain for the incorporation of such small-scale additives into the polymer matrix.…”