A comparative study of the crystalline structure and mechanical properties of carbon fiber/polyamide 6 composites enhanced with/without silane treatment

Sang, Lin; Wang, Yukai; Chen, Guangyi; Liang, Jicai; Wei, Zhiyong

doi:10.1039/c6ra18394h

Cited by 45 publications

(26 citation statements)

References 42 publications

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“…The tensile strength of the composite prepared using five plies of CFs modified with MSPM was 26% higher than the sample produced without MSPM modification due to the improved interfacial adhesion between the layers of the composites. Silane coupling agent treatment is the most effective and common method to promote interfacial adhesion and provides an efficient stress transfer from the polymer matrix to the fibers 46 …”

Section: Resultsmentioning

confidence: 99%

Improvement in mechanical, electrical, and shape memory properties of the polystyrene‐based carbon fiber‐reinforced polymer composites containing carbon nanotubes

Erkmen

Bayram

2021

J of Applied Polymer Sci

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Carbon fiber‐reinforced polymers based on polystyrene matrix containing elastomer and carbon nanotubes (CNTs) were produced by compression molding. The effects of carbon fabric (CF) concentration and silane treatment on the morphology, mechanical, electrical, and shape memory properties of the multilayer composites were investigated. The SEM analyses showed that fibers of the silane‐treated CFs were more homogeneously covered with the polymer layers than the untreated CFs. The tensile strength and modulus of the composites increased by 521% and 125%, respectively, with an increasing number of CF plies from one to five. Upon silane treatment, the tensile strength of the multilayer composite improved by 26%, and the tensile modulus decreased by 18.4%. Electrical conductivities of the composites were in the semiconductor region due to the presence of both CNTs and CFs. 100% shape recovery less than a minute recovery time was obtained for all the composites with electrically triggered bending test.

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Section: Resultsmentioning

confidence: 99%

Improvement in mechanical, electrical, and shape memory properties of the polystyrene‐based carbon fiber‐reinforced polymer composites containing carbon nanotubes

Erkmen

Bayram

2021

J of Applied Polymer Sci

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“…The surface treatment of BF was performed according to previous work [26]. Basalt fibers were first cleaned with acetone/ethanol for 2 h to remove the organic residues from the fiber surfaces.…”

Section: The Silane Treatment Of Bbasalt Fiber (Bf)mentioning

confidence: 99%

“…KH550 (NH 2 CH 2 CH 2 CH 2 Si(OC 2 H 5 ) 3 ), an economical organo-silane, was adopted in this study. Silane treatment has proved to be a low-cost and efficient method to endow the fiber-matrix an improved interfacial bonding [26][27][28]. It is clearly visible that raw basalt fibers were brownish in color, whereas the modified basalt fiber (MBF) displayed a light brownish color.…”

Section: Modification Of Basalt Fibermentioning

confidence: 99%

Silane-Treated Basalt Fiber–Reinforced Poly(butylene succinate) Biocomposites: Interfacial Crystallization and Tensile Properties

et al. 2017

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Abstract:In this work, an economical modifier silane agent-KH550-was used for surface treatment of basalt fiber. Then, a biodegradable poly(butylene succinate) (PBS)/modified basalt fiber (MBF) biocomposite was successfully developed. The effects of silane treatment and fiber mass content on crystalline structure, isothermal crystallization process and mechanical performance of composites were evaluated. The interfacial crystallization of PBS on the surface of MBF was investigated by using a polarized optical microscope (POM). The transcrystalline (TC) structure could be clearly observed and it grew perpendicular to the surface of MBF, which boosted the nucleation ability on PBS crystallization and the strong interfacial interaction between PBS and silane-treated basalt fiber. Under isothermal crystallization kinetics, the incorporation of basalt fiber enhanced the crystallization rate and reduced the crystallization half-time values of composites compared with that of neat PBS due to a heterogeneous nucleation effect. Furthermore, tensile results confirmed that the presence of MBF could greatly improve the tensile strength and modulus. The predicted interfacial shear strength (IFSS) suggested that an enhancement of interfacial bonding could be realized via interfacial crystallization, which was also verified by SEM images. The PBS/MBF biocomposites can be applied in many fields as a low-cost, lightweight, and biodegradable composite material.

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“…Similar to G content at which PA6 crystallinity starts to decrease, both σ yield and E were observed to have decreased when G content was increased to 1%·w/w and above. The α‐phase in PA6 crystals has been associated with superior mechanical properties and a higher degree of crystallinity can contribute to enhanced mechanical properties . As such, the simultaneous decrease in PA6 crystallinity is a contributing factor toward the impaired mechanical reinforcing effect of G addition as G content increases beyond 1%·w/w.…”

Section: Resultsmentioning

confidence: 99%

Low‐defect graphene–polyamide‐6 composites and modeling the filler–matrix interface

Lee

Czajka

Shanks

et al. 2019

J of Applied Polymer Sci

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Low‐defect graphene (G) was prepared via the thermal reduction of expanded graphite in a carbon monoxide environment. G exfoliated and suspended in p‐xylene was compounded in polyamide‐6 (PA6) with filler content ranging from 0.1 to 6%·w/w. Interactions between G and PA6 were characterized via Fourier‐transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), and scanning electron microscopy (SEM). Elastic modulus (E) had increased with increasing G content, and had exceeded idealized Halpin–Tsai predictions at 0.1–1.0%·w/w G content, indicating good dispersion and filler–matrix interactions. However, further analysis with a modified rule‐of‐mixtures (RoM) mathematical model indicate that the quality of filler–matrix interface had been suboptimal and had deteriorated drastically with increasing G content. The evaluation of interface quality is in agreement with observed changes in thermal behavior trends. The modified RoM can be applied as a useful tool toward interpreting the mechanical properties of graphene‐reinforced composites. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48630.

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A comparative study of the crystalline structure and mechanical properties of carbon fiber/polyamide 6 composites enhanced with/without silane treatment

Abstract: The silane-treated carbon fiber induced the formation of transcrystalline structure and enhanced the interfacial adhesion between the fiber and polyamide 6 matrix.

Cited by 45 publications

References 42 publications

Improvement in mechanical, electrical, and shape memory properties of the polystyrene‐based carbon fiber‐reinforced polymer composites containing carbon nanotubes

Improvement in mechanical, electrical, and shape memory properties of the polystyrene‐based carbon fiber‐reinforced polymer composites containing carbon nanotubes

Silane-Treated Basalt Fiber–Reinforced Poly(butylene succinate) Biocomposites: Interfacial Crystallization and Tensile Properties

Low‐defect graphene–polyamide‐6 composites and modeling the filler–matrix interface

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