Study on properties of PES/CF/CB composites through selective laser sintering

doi:10.19491/j.issn.1001-9278.2023.09.003

Abstract

Abstract:

Polyethersulfone （PES） resin/carbon fiber （CF）/carbon black （CB） composite powder⁃sintered parts were prepared through selective laser sintering （SLS）， and their microstructure， mechanical properties， electrical properties， and surface quality were investigated by using the sintered parts with a CB mass fraction of 2 wt% and a CF mass fraction varying from 0 to 3 wt%. The results indicated that the mechanical properties of the sintered parts were enhanced at a CF mass fraction of 1.5 wt%. The addition of CF enhanced the conductivity of the sintered parts， and their conductivity was increased from 5×10^-3 to 15×10^-3S/m. In addition， the surface quality of the sintered parts exhibited a trend of deterioration with an increase in the CF mass fraction.

Key words: selective laser sintering, carbon fiber, mechanical property, electrical conductivity, surface quality

CLC Number:

TQ326.55

CHEN Hui, SUN Lingsheng, QIAN Weidong, TAN Bo. Study on properties of PES/CF/CB composites through selective laser sintering[J]. China Plastics, 2023, 37(9): 14-18.

Figures/Tables 6

Fig.1. SEM of tensile fracture of sintered parts with different CF mass fractions

Fig.2. Mechanical property change curves of sintered parts with different CF mass fractions

Fig.3. The surface morphology of pulled⁃out CF

Fig.4. Conductivity change curves of sintered parts with different CF mass fractions

Fig.5. Surface quality variation curves of sintered parts with different CF mass fractions

Fig.6. Surface morphology of sintered parts with different CF mass fractions

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