Effects of Fiber Characteristics on the Rheological and Mechanical Properties of Polycarbonate/Carbon Fiber Composites

Kim, Youn Hee; Yoon, Sung Ho; Jang, Seon Ho; Lee, Yun Kyun; Sung, Youngje; Lee, Heon Sang; Kim, Woo Nyon

doi:10.1163/156855409x450891

Cited by 14 publications

(6 citation statements)

References 35 publications

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“…The longest CF in the final composites was reported in their study. This result seems to contrast with the result obtained by Kim et al [99], who noticed that the tensile strength of the PC/CF composites decreased. This reduction was attributed to the decrease in the CF length after the fabrication process.…”

Section: Mechanical Strength and Modulus Of Cfrtpcontrasting

confidence: 99%

“…Meanwhile, the investigated length ranges of CF (0 to 50 µm) had no effect on these mechanical properties except that strain at break was improved. Kim et al [99] analyzed the impact of CF length, CF loading, and processing speed on PU/CF composites' mechanical properties. They concluded that these parameters have a substantial effect on the mechanical properties of the composites.…”

Section: Mechanical Strength and Modulus Of Cfrtpmentioning

confidence: 99%

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Comprehensive Review of the Properties and Modifications of Carbon Fiber-Reinforced Thermoplastic Composites

et al. 2021

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Carbon fiber-reinforced polymers are considered a promising composite for many industrial applications including in the automation, renewable energy, and aerospace industries. They exhibit exceptional properties such as a high strength-to-weight ratio and high wear resistance and stiffness, which give them an advantage over other conventional materials such as metals. Various polymers can be used as matrices such as thermosetting, thermoplastic, and elastomers polymers. This comprehensive review focuses on carbon fiber-reinforced thermoplastic polymers due to the advantages of thermoplastic compared to thermosetting and elastomer polymers. These advantages include recyclability, ease of processability, flexibility, and shorter production time. The related properties such as strength, modulus, thermal conductivity, and stability, as well as electrical conductivity, are discussed in depth. Additionally, the modification techniques of the surface of carbon fiber, including the chemical and physical methods, are thoroughly explored. Overall, this review represents and summarizes the future prospective and research developments carried out on carbon fiber-reinforced thermoplastic polymers.

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Section: Mechanical Strength and Modulus Of Cfrtpcontrasting

confidence: 99%

Section: Mechanical Strength and Modulus Of Cfrtpmentioning

confidence: 99%

Comprehensive Review of the Properties and Modifications of Carbon Fiber-Reinforced Thermoplastic Composites

et al. 2021

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“…In general, sizing can contribute not only to protecting possible fiber damages occurring upon extrusion/injection processing but also to improving the interfacial bonding between the fiber and the matrix [ 26 ]. Kim et al [ 47 ] reported that the use of sized carbon fiber resulted in a longer fiber length than that of unsized carbon fiber in carbon fiber/polycarbonate composites via the extrusion process. Accordingly, it can be said that dual sizing may play a positive role in reducing possible carbon fiber damage and shortening by shear forces occurring during extrusion and injection processes, giving rise to some benefits, compared to the single sizing case.…”

Section: Resultsmentioning

confidence: 99%

Dual-Sizing Effects of Carbon Fiber on the Thermal, Mechanical, and Impact Properties of Carbon Fiber/ABS Composites

2021

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Dual-sizing effects with either epoxy or polyurethane (PU) on the thermal, mechanical, and impact properties of carbon fiber/acrylonitrile-butadiene-styrene (ABS) composites produced by extrusion and injection molding processes were investigated. The heat deflection temperature, dynamic mechanical, tensile, flexural, and impact properties of the composites reinforced with either (epoxy + epoxy) or (epoxy + PU) dual-sized carbon fiber were higher than those commercially single-sized with epoxy. The result indicated that the dual-sized carbon fiber significantly contributed not only to improving the heat deflection temperature and the storage modulus, but also to improving the tensile, flexural, and impact properties of carbon fiber/ABS composites. The highest improvement of the composite properties was obtained from the composite with (epoxy + PU) dual-sized carbon fiber. The improvement of the mechanical and impact properties was explained by the enhanced interfacial bonding between carbon fiber and ABS matrix and by the length distribution analysis of carbon fibers present in the resulting composites. The fiber–matrix interfacial behavior was qualitatively well-supported in terms of fiber pull-out, fiber breaking pattern, and debonding gaps between the fiber and the matrix, as observed from the fracture surface topography. This study revealed that the properties of carbon fiber/ABS composites prepared by extrusion and injection molding processes were improved by dual-sizing carbon fiber, which was performed after a commercial epoxy sizing process, and further improved by using PU as an additional sizing material.

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“…53 These observations are similar to the results of other studies on the rheological behaviors of fiber reinforced composites. 54,55 The effect of different mixing time on the rheological properties of PP/CFs composites is shown in Figure 9. Similarly, the η* and G 0 of the composites also gradually decreases with the increase of mixing time.…”

Section: Rheological Propertiesmentioning

confidence: 99%

Development of pulsating extensional stress induced melt mixer and its application for polypropylene/carbon fibers composites

Yin

Wei

Lin

et al. 2023

Journal of Thermoplastic Composite Materials

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In this work, a pulsating extensional stress induced melt mixer was developed. The compositions, structure, working principle, and melt mixing process of the device were introduced in detail. The mixer generated a full-process pulsating extension deformation effect on materials by the eccentric vane units and arc-shaped flow channels, which greatly promoted the dispersion and mixing of the materials. Polypropylene/carbon fibers (PP/CFs) composites were prepared by the new mixer, and the effects of different rotational speeds and mixing time on the properties of the composites were studied. The results showed that proper rotational speed and mixing time effectively promoted the dispersion of CFs in PP matrix, while the fibers still had long remaining lengths. As a result, the overall properties, especially the mechanical properties of the PP/CFs composites improved. When the CFs content was 30 wt.%, at the process parameters of 20 r/min and 2 min, compared with pure PP, the tensile strength (58.46 MPa) and modulus (1962 MPa) of the PP/CFs composite were increased by 78.6% and 263.3%, respectively.

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Effects of Fiber Characteristics on the Rheological and Mechanical Properties of Polycarbonate/Carbon Fiber Composites

Cited by 14 publications

References 35 publications

Comprehensive Review of the Properties and Modifications of Carbon Fiber-Reinforced Thermoplastic Composites

Comprehensive Review of the Properties and Modifications of Carbon Fiber-Reinforced Thermoplastic Composites

Dual-Sizing Effects of Carbon Fiber on the Thermal, Mechanical, and Impact Properties of Carbon Fiber/ABS Composites

Development of pulsating extensional stress induced melt mixer and its application for polypropylene/carbon fibers composites

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