Properties of polyphenylene sulfide/multiwalled carbon nanotubes composites: a comparison between compression molding and microinjection molding
Abstract
This work comparatively studied the electrical, morphological, and thermal properties of polyphenylene sulfide/multiwalled carbon nanotubes (PPS/CNT) composites prepared by compression molding (CM) and microinjection molding (μIM), respectively. The subsequent samples were termed as CM composites and microparts, respectively. Results revealed that the electrical conductivity of PPS/CNT microparts was lower than that of CM PPS/CNT composites, which was ascribed to the difference in shearing which affected microstructural evolution. In addition, SEM observations revealed that the distribution of CNTs became better in the PPS/CNT microparts, which was related to the prevailing higher shearing effect in μIM. The tensile strength of PPS/CNT microparts dropped for filler concentrations ≤2 wt% and it started to increase after reaching 10 wt%; in comparison with the PPS/CNT microparts, the tensile strength of CM PPS/CNT samples exhibited an opposite trend when the filler concentration was ≤3 wt%. After that, the tensile strength showed a monotonic increase with increasing CNT concentration. Both the uniform distribution of CNT and increase of crystallinity were crucial to improving the tensile strength of PPS/CNT moldings. This work showed that PPS/CNT moldings with good electrical conductivity and mechanical performance can be molded at relatively high filler concentrations, which is critical for applications in demanding engineering sectors.
Funding source: National Natural Science Foundation of China
Award Identifier / Grant number: 52103040
Funding source: China Postdoctoral Science Foundation
Award Identifier / Grant number: 2020M673217
Acknowledgments
This authors thank Prof. Yinghong Chen (Sichuan University) for access to use the MicroPower 5 micromolding machine.
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Research ethics: Not Applicable.
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Informed consent: Not Applicable.
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Author contributions: The authors have accepted responsibility for the entire content of this manuscript and approved its submission.
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Competing interests: The authors state no conflict of interest.
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Research funding: National Natural Science Foundation of China (grant number: 52103040); China Postdoctoral Science Foundation (grant number: 2020M673217).
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Data availability: The raw data can be obtained on request from the corresponding author.
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Artikel in diesem Heft
- Frontmatter
- Review Article
- A comprehensive review on residence time distributions in co-rotating twin-screw extrusion
- Research Articles
- Tearing properties, crystallization behavior, microstructure, and morphology of LLDPE with different short branched chain distributions
- Synergistic modification of hydrolyzed keratin-based rigid polyurethane foam with zinc stannate and aluminum hypophosphite to improve its thermal stability and flame retardant properties
- Effect of mixing temperature on the dispersion and degradation behaviors of HDPE/UHMWPE blends
- Properties of polyphenylene sulfide/multiwalled carbon nanotubes composites: a comparison between compression molding and microinjection molding
- Improvement of the thermal and mechanical behaviour of polystyrene (PS)-based nanocomposite films by modification of the composition and type of nanofiller
- Thermally conductive, mechanically robust alumina-incorporated polyurethane films prepared by ultraviolet light curing
- Flame retardant polyurethane foam prepared from compatible blends of ammonium ligninsulfonate-based and zinc alginate
- Optical, electrical, dielectric and mechanical properties of microcrystalline cellulose/starch based biocomposite films
- An innovative multilayered material fabricated through additive manufacturing for structural applications: method and mechanical properties
Artikel in diesem Heft
- Frontmatter
- Review Article
- A comprehensive review on residence time distributions in co-rotating twin-screw extrusion
- Research Articles
- Tearing properties, crystallization behavior, microstructure, and morphology of LLDPE with different short branched chain distributions
- Synergistic modification of hydrolyzed keratin-based rigid polyurethane foam with zinc stannate and aluminum hypophosphite to improve its thermal stability and flame retardant properties
- Effect of mixing temperature on the dispersion and degradation behaviors of HDPE/UHMWPE blends
- Properties of polyphenylene sulfide/multiwalled carbon nanotubes composites: a comparison between compression molding and microinjection molding
- Improvement of the thermal and mechanical behaviour of polystyrene (PS)-based nanocomposite films by modification of the composition and type of nanofiller
- Thermally conductive, mechanically robust alumina-incorporated polyurethane films prepared by ultraviolet light curing
- Flame retardant polyurethane foam prepared from compatible blends of ammonium ligninsulfonate-based and zinc alginate
- Optical, electrical, dielectric and mechanical properties of microcrystalline cellulose/starch based biocomposite films
- An innovative multilayered material fabricated through additive manufacturing for structural applications: method and mechanical properties