Preparation of PPS/CF Composites by a Twin⁃rotor Continuous Mixing Extruder

doi:10.19491/j.issn.1001-9278.2020.08.008

Abstract

Abstract:

Carbon fiber (CF)-reinforced poly(phenylene sulfide) (PPS) composites were prepared by a twin-rotor continuous mixing extruder, and their morphology, dynamic mechanical properties, mechanical performance and electrical properties were studied. The results indicated that the mechanical and electrical properties of PPS/CF composites could be improved by appropriately reducing the rotation speed of the extruder rotor and increasing the CF content. The composites achieved the impact strength of 49.94 J/m and the volume resistivity of 60.65 Ω·cm when the rotor speed was set to 200 r/min and the CF content was set as 20 %. These results suggested that the composites had better mechanical and electrical properties than pure PPS.

Key words: polyphenylene sulfide, carbon fiber, twin-rotor continuous mixing extruder, property

CLC Number:

TQ326.5

Dayou DING, Yulu MA, Linsheng XIE, Huihao ZHU, Xiliang SHAN. Preparation of PPS/CF Composites by a Twin⁃rotor Continuous Mixing Extruder[J]. China Plastics, 2020, 34(8): 50-56.

Figures/Tables 11

Fig.1. Structure of the double rotors

Fig.2. SEM of sections of PPS/CF composites at different rotor speeds

Fig.3. The distribution of Mmix and revised Lyapunov at different rotor speeds

Fig.4. SEM on longitudinal sections of PPS/CF composites with different CF contents

Fig.5. The distribution of Mmix and revised Lyapunov with different CF contents

Fig.6. Dynamic mechanical properties of PPS/CF composites at different rotor speeds

Fig.7. Dynamic mechanical properties of PPS/CF composites with different CF mass fractions

Fig.8. Mechanical properties of PPS/CF composites at different rotor speeds

Fig.9. Mechanical properties of PPS/CF composites with different CF contents

Fig.10. Volume resistivity of PPS/CF composites at different rotor speeds

Fig.11. Volume resistivity of PPS/CF composites with different CF contents

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