Improved interfacial properties of PI composites through graphene oxide and carbon nanotubes on carbon fiber surface

Lv, Yongqiang; Chunzheng, Peng

doi:10.1002/sia.6448

Cited by 9 publications

(6 citation statements)

References 23 publications

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“…are even much better . Peng et al reported the poor interfacial adhesion between CFs and PI, in agreement with the investigation of lv et al In spite of these findings, the mechanism for the influence of the PI sizing agent on interfacial properties of CF/PEEK composites is still not fully understood. Furthermore, as a typical semi‐crystalline polymer, the interfacial crystalline behavior of PEEK is a critical parameter governing the overall performance of CF/PEEK composites.…”

Section: Introductionsupporting

confidence: 73%

“…are degraded during processing at such high temperature, new sizing agents with high thermal stability have drawn great attention, in particular polyimide (PI) . PI sizing agents have many advantages including partial compatibility with PEEK, excellent mechanical properties, and endurance of high temperature . Thus, many researchers have tried to introduce PI sizing agents into CF surfaces; however, the results are not desirable yet.…”

Section: Introductionmentioning

confidence: 99%

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Interfacial crystallization behavior of poly(ether‐ether‐ketone) on polyimide‐modified CCF300 carbon fibers

Zhao

Wang

2020

Polymer Composites

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Thermostable polyimide (PI) was synthesized and used as a sizing agent to modify carbon fiber (CF) surfaces. In order to investigate the influence of the PI sizing agent on interfacial properties of continuous CF reinforced poly(ether‐ether‐ketone) (CF/PEEK) composites, a comparative investigation on the interfacial crystallization behavior of PEEK on CF surface with and without PI modification was performed by in situ polarized optical microscope (POM) and differential scanning calorimetry (DSC) analysis. The POM images showed that the unsized CFs acted as heterogeneous nucleating agents to accelerate the formation of transcrystals, whereas CFs with PI sizing agents reduced nucleation site density, inducing nonuniform crystal layers. Quantitative investigation on the kinetics of interfacial crystallization growth also revealed that the PI sizing agent was an obvious obstacle to nucleation and subsequent crystallization growth. Based on the Jeziorny‐modified Avrami model, nonisothermal crystallization kinetics was studied over a large range of cooling rates, whose results were found consistent with the results in POM observation. Moreover, a theoretical model was proposed to reveal the mechanisms for the considerable influence of the PI sizing agent on the interfacial crystallization behavior of PEEK in CF/PEEK composites, and the predication for other systems was also performed.

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Section: Introductionsupporting

confidence: 73%

Section: Introductionmentioning

confidence: 99%

Interfacial crystallization behavior of poly(ether‐ether‐ketone) on polyimide‐modified CCF300 carbon fibers

Zhao

Wang

2020

Polymer Composites

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“…These improvements were attributed to the excellent progress in the chemical and mechanical interaction (interlocking) between GO on the surface of CF and the PP matrix as superior interfacial bonding. Yongqiang et al [76] deposited CNTs and GO on CF. They reported an enhancement in the interfacial adhesion, roughness, and wettability of the CF surface to increase adhesion between the PI matrix and the CF due to hydrogen bonding and mechanical interlocking.…”

Section: Physical Treatmentsmentioning

confidence: 99%

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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“…26 Better interfacial performance of composites can be achieved through uniform distribution of CNTs on CF. 27 However, the strong Van der Waals' attracted force among functionalized CNTs will lead to significant self-aggregation, making good dispersion difficult. 28 Some researchers focused on combining dendritic polymers and functionalized CNTs to achieve the desired treated effect for CF.…”

Section: Introductionmentioning

confidence: 99%

High improvement of interfacial and mechanical properties in reinforcedPPcomposite by grafting polyethyleneimine modified carboxylicmulti‐walledcarbon nanotubes on short carbon fiber

Fang¹

2022

J of Applied Polymer Sci

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The properties of carbon fiber reinforced polymer composites (CFRPs) will benefit greatly from improving interfacial performance. In this study, the interfacial properties of the PEI-CNT-CF/PP composite was improved by coating polyethyleneimine (PEI) modified carboxylic multi-walled carbon nanotubes (CNTs) in aqueous solution (PEI-CNT) onto the surface of the CF (PEI-CNT-CF) to form a network structure. The network formation changed the chemical characteristics and compatibility of CF surface by introducing amine (imine) groups, and could induce transcrystallization (TC) at interface of composite.These positive factors led to a 24.6% increasement in the interfacial shear strength (IFSS) of PEI-CNT-CF/PP, and further resulted in 16.2% and 5.3% improvement in tensile and flexural strength, respectively. SEM images of the fracture surface demonstrated a significant improvement in the interfacial adhesion between PEI-CNT-CF and PP resin. These results indicated that the PEI-CNT was a great choice to strengthen the interface of CF/PP system.

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Improved interfacial properties of PI composites through graphene oxide and carbon nanotubes on carbon fiber surface

Cited by 9 publications

References 23 publications

Interfacial crystallization behavior of poly(ether‐ether‐ketone) on polyimide‐modified CCF300 carbon fibers

Interfacial crystallization behavior of poly(ether‐ether‐ketone) on polyimide‐modified CCF300 carbon fibers

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

High improvement of interfacial and mechanical properties in reinforcedPPcomposite by grafting polyethyleneimine modified carboxylicmulti‐walledcarbon nanotubes on short carbon fiber

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