Processing, structure, and properties of multiwalled carbon nanotube–poly(phenylene sulfide) composite fibers

Abstract

To improve the processability and properties of the poly(phenylene sulfide) (PPS) fibers at room temperature and high temperatures, a series of composite fibers based on PPS and multiwalled carbon nanotubes were prepared by melt spinning. We researched the processability with a high‐pressure capillary rheometer, and the properties of the composite fibers were investigated in detail by scanning electron microscopy, differential scanning calorimetry, fiber sonic velocity measurement, and single‐fiber strength testing. The results show that the carbon nanotubes (CNTs) had good interfacial adhesion with PPS and dispersed homogeneously in the PPS matrix. When the shear rate was higher than 500 s−1, the oriented CNTs induced the orientation of PPS molecular chains; this resulted in a decline in the apparent viscosity and an increase in the orientation degree of the molecular chains. Meanwhile, the CNTs acted as nucleating agents to effectively improve the crystallization of PPS. The strength of the fibers at room temperature were improved by 28.8% after the addition of 0.2% CNTs, and the initial modulus was also significantly enhanced. The strength retention at 160 °C was promoted from 60.58 to 88.32% with the addition of 1.0% CNTs. The shrinking percentage decreased to almost zero from higher than 15%; this suggested that the CNTs could efficiently improve the dimensional stability at high temperatures. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44609.

The effects of carbon nanotubes selective location on the structures and properties of polyphenylene sulfide/polyamide 66 fibers

“…Meanwhile, the effects of H-CNTs migration behaviors during the blending process of ternary system, H-CNTs location and different H-CNTs additions on the structure, phase morphologies and properties of PPS/PA 66 melt-spun fibers were also studied. 41 The phase morphologies and dispersed phase size of PPS/PA 66 blends with different H-CNTs additions obtained from different blending orders were characterized by scanning electron microscopes (SEM). The rheological properties and crystalline properties were analyzed by high-pressure capillary rheometer, differential scanning calorimeter (DSC), respectively.…”

“…Then, a series of ternary resins were prepared into fibers based on melt spinning technology. Meanwhile, the effects of H‐CNTs migration behaviors during the blending process of ternary system, H‐CNTs location and different H‐CNTs additions on the structure, phase morphologies and properties of PPS/PA 66 melt‐spun fibers were also studied 41 . The phase morphologies and dispersed phase size of PPS/PA 66 blends with different H‐CNTs additions obtained from different blending orders were characterized by scanning electron microscopes (SEM).…”

Investigation of mechanical and tribological behaviour of expanded perlite particle reinforced polyphenylene sulphide

“…[3][4][5][6][7][8][9][10][11][12] PPS shows significant physical, mechanical, and chemical properties such as high decomposition temperature, dimensional and high temperature stability, flame resistance, high tribological properties, chemical and corrosion resistance, low water absorption, etc. [3][4][5]7,8,11,[13][14][15] Owing to its superior features, it finds many applications progressively such as battery, aerospace, automotive, machinery, telephone, electric and electronic, etc. 3,12,14,[16][17][18] However, usage of PPS is limited by its high price and weakness of toughness.…”

Preparation and characterization of polyphenylene sulfide/graphene nanoplatelets composite fibers with enhanced oxidation resistance

“…In the last decades, extensive researches have been performed on the preparation, structure, and performance of PPS fibers. 8 –11 Only a few researches on the preparation of oxidative PPS fibers have been reported. The antioxidative emulsions are prepared by nanoparticles, coupling agents, and antioxidants in a Chinese patent, 12 which can be used to form a protective shield on the surface of PPS melt spinning fibers by immersion process.…”