Antistatic packaging based on PTT/PTT‐g‐MA/ABS/MWCNT nanocomposites: Effect of the chemical functionalization of MWCNTs

Abstract

Polymer/carbon nanotube nanocomposites have attracted high interest for a wide spectrum of applications, including antistatic packaging used to protect electronic devices against electrostatic discharge. Polytrimethylene terephthalate (PTT)/maleic-anhydride-grafted PTT (PTT-g-MA)/acrylonitrile butadiene styrene (ABS) blend-based multiwall carbon nanotubes (MWCNTs) nanocomposites were prepared through extrusion. It was conducted chemical functionalization on the MWCNTs by oxidation using nitric acid to introduce functional groups. The effect of the amount (0.5 or 1.0 wt%) and functionalization of MWCNTs on the nanocomposites was investigated. Despite the poor barrier properties of PTT/PTT-g-MA/ABS/MWCNT nanocomposites due to the presence of voids confirmed by scanning electron microscopy (SEM), the nanocomposites with functionalized MWCNT (MWCNTf) showed excellent barrier properties, indicating that the functionalization process improved the interaction between the MWCNTs and the matrix. The addition of MWCNTs into PTT/PTT-g-MA/ABS

Effect of environment‐friendly intercalated Coal and coal gangue on flame‐retardant, antistatic, and mechanical properties of poly(vinyl chloride)/acrylonitrile–styrene–acrylate composites

“…To sum up, PVC/ASA composites with A-Coal had better antistatic properties than those with the same content of M-Coal. This difference indicated that the A-Coal can be well dispersed throughout the PVC/ASA matrix, mainly attributed to large showing much better [39,40]…”

Effect of Recycled Graphite as an Antistatic Agent on the Mechanical, Thermal, and Electrical Properties of Poly(Trimethylene Terephthalate)

“…Unlike amorphous polymers, whose free volume of chain tangles is sufficient for the material's barrier property to be ineffective, semi-crystalline polymers, such as PTT, present a greater barrier to water vapor permeation because of the presence of the crystalline phase, which makes the diffusion paths more tortuous, making it difficult for water molecules to pass through the material. [11,42] So, controlling the permeant (gas/vapor/liquid) transport through a polymer is critical in packaging applications. [43] Table 5 shows the WVP results for PTT/PRG and PTT/PTTg-MA/PRG composites.…”

“…Thus, to obtain antistatic packaging from insulating polymers, an alternative is using antistatic agents as functional fillers that can enhance the polymers' superficial and volumetric electrical conductivity. [6] For example, metallic powders, [7] intrinsically conductor polymers such as polyaniline and polypyrrole, [8] and carbon materials, including carbon black, [9] glassy carbon, [10] carbon nanotubes, [11,12] graphite, and graphene. [13][14][15] In addition, adequate filler content and satisfactory filler dispersion in a polymeric matrix allow conductive paths to form, raise the electrical conductivity and turn common polymers into suitable materials for ESD protection.…”

“…[6] Studies have already verified the influence of carbon fillers on the properties of polyolefins, polyesters, polyamides, and other polymer classes. [11,[13][14][15][16][17] This paper develops antistatic packaging based on PTT as a polymeric matrix. PTT is a relatively new Table 1.…”

A review concerning the main factors that interfere in the electrical percolation threshold content of polymeric antistatic packaging with carbon fillers as antistatic agent

“…This result may be attributed to the partial destruction of the conductive graphitic structure of CNT caused by the utilization of strong acid in the functionalization. In another work, Braga et al [53] studied the influence of functionalized-CNT on the properties of the PTT/ABS blend. The addition of 0.5 wt% of functionalized-CNT in the polymeric blend decreased the electrical resistivity only by one decade of magnitude when compared with the PTT/ABS blend.…”