Mechanical and thermal properties of polyphenylene sulfide/multiwalled carbon nanotube composites

Abstract

Polyphenylene sulphide (PPS)/multi-walled carbon nanotube (MWCNT) composites were prepared using a melt-blending procedure combining twin-screw extrusion with centrifugal premixing. A homogeneous dispersion of MWCNTs throughout the matrix was revealed by scanning electron microscopy for the nanocomposites with MWCNT contents ranging from 0.5 to 8.0 wt%. The mechanical properties of PPS were markedly enhanced by the incorporation of MWCNTs. Halpin-Tsai equations, modified with an efficiency factor, were used to model the elastic properties of the nanocomposites. The calculated modulus showed good agreement with the experimental data. The presence of the MWCNTs exhibited both promotion and retardation effects on the crystallization of PPS. The competition between these two effects results in an unusual change of the degree of crystallinity with increasing MWCNT content.

ITO‐Free and Flexible Organic Photovoltaic Device Based on High Transparent and Conductive Polyaniline/Carbon Nanotube Thin Films

“…The optimized fi lm was subsequently used as a transparent conductor (anode) in a fl exible and ITO-free organic photovoltaic (OPV) device, showing outstanding performances, (Figure 2 b) is thinner ( ≈ 50 nm) and covers the entire substrate. The dispersion in the diameter distribution of the larger nanotubes is also three times higher than that of the thinner nanotubes, as shown in Figure 2 c. [ 27 ] This discrepancy may lead to poorer assembly of carbon nanotubes at the liquid interface and thereby contribute to a nonuniform fi lm. Thus, small-diameter nanotubes and/or low diameter dispersion are crucial to the production of high-quality fi lms.…”

Effects of Carbon Fillers on Crystallization Properties and Thermal Conductivity of Poly(phenylene sulfide)

“…They also show a uniquely high thermal conductivity of 2800-6000 W/ mK at room temperature [1,2] , which is greater than those of graphite and carbon fibers. It has been reported that CNT acts as an efficient nucleating agent on polymers, including polypropylene (PP) [3,4] , nylon [5,6] , poly(phenylene sulfide) (PPS) [7][8][9] , and polyolefins [10] , and accelerates the crystallization process. It has been observed that the crystallinity of polymer has a very important influence on the thermal performance.…”

“…Poly(phenylene sulfide) is an engineering thermoplastic material with outstanding comprehensive performance, exhibiting high mechanical strength, good thermal stability, chemical resistance, and excellent electrical properties [7,[16][17][18] . Khan et al [19] investigated the effects of microsized and nanosized carbon fillers respectively on the thermal and electrical properties of PPS-based composites.…”

The Separation Power of Nanotubes in Membranes: A Review

“…Numerous publications can be found on nanocomposites with many other polymers, such as ethylene-vinyl acetate copolymer [102], polyvinylidene fluoride [103], polyolefins [104], acrylonitrile-butadiene-styrene [105], polyphenylene sulfide [106], poly(ethylene terephthalate) (PET) [107], and many more. Even though interactions between polymers and nanotubes are quite different from the projected functionality in membranes, the polymer-nanotube conjunction is a basic starting point showing a glimpse of the potential of hybrid materials.…”