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. 2019 Apr 15;11(4):684.
doi: 10.3390/polym11040684.

Structure, Mechanical and Thermal Properties of Polyphenylene Sulfide and Polysulfone Impregnated Carbon Fiber Composites

Dilyus Chukov  1 , Sarvarkhodzha Nematulloev  2 , Mikhail Zadorozhnyy  3 , Victor Tcherdyntsev  4 , Andrey Stepashkin  5 , Dmitry Zherebtsov  6
Affiliations

Structure, Mechanical and Thermal Properties of Polyphenylene Sulfide and Polysulfone Impregnated Carbon Fiber Composites

Dilyus Chukov et al. Polymers (Basel). .

Abstract

The paper studies new high-temperature thermoplastic impregnated unidirectional carbon fiber composites. The research focuses on the effect of thermal and chemical oxidation of the carbon fibers surface on the interfacial interaction between fibers and polysulfone and polyphenylene sulfide as well as thermal and mechanical properties of the composites. The research reveals the interaction between carbon fibers and the polymer matrix depend both on the type of surface treatment and nature of the polymer. The chemical oxidation of carbon fibers results in good interfacial interaction, and the best mechanical properties were observed for tows impregnated with polyphenylene sulfide.

Keywords: carbon fibers; impregnation; polyphenylene sulfide; polysulfone; surface modification.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Carbon fibers (a) at initial state, (b) after thermal treatment, and (c) outlook of PPS impregnated fibers.
Figure 2
Figure 2
SEM images of the carbon fibers: (a,b) after nitric acid oxidation (3 h at 110 °C) and (c,d) after thermal oxidation (10 min at 500 °C).
Figure 3
Figure 3
The stress-strain curves for the carbon fiber reinforced PPS- (left) and PSU- (right) based composites.
Figure 4
Figure 4
SEM images of the PPS/CF (initial) composites after tensile test.
Figure 5
Figure 5
SEM images of the PPS/CF (chemical treatment) composites after tensile test.
Figure 6
Figure 6
SEM images of the PPS/CF (thermal treatment) composites after tensile test.
Figure 7
Figure 7
SEM images of the PSU/CF (initial) composites after tensile test.
Figure 8
Figure 8
SEM images of (a,b) the PSU/CF (chemical treatment) and (c,d) PSU/CF (thermal treatment) composites after tensile test.
Figure 9
Figure 9
The DSC curves of (a) the initial PPS and (b) PPS composites reinforced with initial CF, CF after (c) chemical and (d) thermal treatment.
Figure 10
Figure 10
The DSC curves of the neat PSU powder and PSU/CF composites.
Figure 11
Figure 11
Dependences of (a) storage modulus and (b) tan δ of the PPS/CF composites on the heating temperature.
Figure 12
Figure 12
The storage modulus and tan δ of the PSU/CF composites as a function of temperature.
See this image and copyright information in PMC

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