Modification of carbon fiber–polyurethane interface with carbon nanotubes

Мордкович, В. З.; Urvanov, Sergey A.; Kravchenko, Vasiliy D.; Kazennov, Nikita V.; Zhukova, Ekaterina A.; Karaeva, Aida R.

doi:10.1080/14328917.2015.1131419

Cited by 4 publications

(2 citation statements)

References 25 publications

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“…Extensive research in this area indicates that the incorporation of nanoparticles in a PU matrix can improve significantly the mechanical and thermo‐mechanical properties of PU matrices . On the other hand, only very few and recent studies have dealt with the study of the effect of nanoparticles on the thermo‐mechanical properties of carbon fiber reinforced polyurethanes (CF‐PU) . It is important to emphasize that the authors are referring specifically to polyurethanes used as matrices of fiber reinforced composites, which correspond to highly cross‐linked thermosetting polyurethanes such as poly(urethane‐isocyanurate) systems.…”

Section: Introductionmentioning

confidence: 99%

Enhanced fracture toughness of nanostructured carbon‐fiber reinforced poly(urethane‐isocyanurate) composites at low concentrations

Chiacchiarelli

Petrucci

Torre

2017

Polymer Engineering & Sci

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Carbon fiber reinforced poly(urethane‐isocyanurate)‐nanosilica composites CF‐(PUI‐NS) were manufactured by means of the vacuum‐assisted resin transfer moulding technique (VARTM) at very low NS concentrations (0–4 wt%). The high strain to failure of the PUI matrix (>7%) affected tensile tests by CF reorientation. Both the tensile strength and strain to failure were highly dependent on its kinematics. CF(PUI‐NS) caused an increase of the static toughness with a maximum improvement of tensile strain to failure and modulus of +28.8% and +39% at 1 wt% and 2 wt% of NS, respectively. The interlaminar shear strength (GIC) of the composites showed both a deterioration of −12.9% and an improvement of +9.9% for NS concentrations of 1 wt% and 4 wt%, respectively. Regardless of the GIC value, all of the composites prepared with NS presented secondary maxima of the force versus displacement plots, indicating a substantial arrest of the crack propagation velocity after delamination started. Fractographic analysis revealed several features, such as fiber pull‐out, bridging as well as river patterns whereas the composites prepared with NS behaved in a more ductile fashion due to the presence of river patterns and a reduced fiber pull‐out. POLYM. ENG. SCI., 58:1241–1250, 2018. © 2017 Society of Plastics Engineers

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Section: Introductionmentioning

confidence: 99%

Enhanced fracture toughness of nanostructured carbon‐fiber reinforced poly(urethane‐isocyanurate) composites at low concentrations

Chiacchiarelli

Petrucci

Torre

2017

Polymer Engineering & Sci

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“…With variables tensile strength of the fibre (σ* f ), the diameter of the fibre (d f ) and the fibre-matrix bond strength, in this case, the PU/CF interfacial shear strength (τ c ) value reported in [36] for a very similar system from a chemistry viewpoint as 12 MPa. Alternatively, it can be calculated as 2.21 mm when following the method reported in [37] (Equation 2), using the ultimate shear stress acting on the surrounding cylinder of foam at break taken from the pull-out tests reported in this study (τ m ult = 1.3 MPa), and s t as the shearing strip, i.e., the diameter of the outer stress transfer zone, taken as 6 filament diameters, as measured from the cellular structure fracture images (Figure 6(b,c)).…”

Section: Discontinuous Carbon Fibres: Numerical Calculation Of Effective Lengthmentioning

confidence: 99%

Enhanced interfacial adhesion and mechanical performance of lightweight polyurethane foam reinforced with a low content of aligned magnetised short carbon fibres

Torres-Sánchez

Abyaneh

Holt

et al. 2020

Composite Interfaces

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An increase in interfacial properties between the matrix, a polyurethane cellular foam, and the reinforcement, a short carbon fibre, led to improved mechanical properties of a lightweight composite. The carbon fibre surface modification was designed with two aims: to impart magnetic properties so the discontinuous fibres could be aligned on-demand during the manufacturing process using a weak magnetic field, and to promote interfacial adhesion between the matrix and the reinforcement. After surface treatment, functionalising and coating with magnetite nanoparticles created and deposited in situ via electrodeposition prior to their deployment, the fibres were susceptible to magnetic manipulation and orientation within the reacting foam. The fibre coating contributed to interfacial compatibilization between the matrix and the reinforcement. Comparing the results between unreinforced, reinforced with untreated fibre, and reinforced with magnetised fibre, the results show that: foam reinforced with a low %vol content, i.e., from 0.1%vol to 0.4%vol, of any of the fibres improved specific strength, stiffness and toughness in tension relative to the unreinforced cellular polymeric matrix without densification, modification of cell size or compromising their lightweight properties. The magnetised fibre-containing composites showed significantly improved mechanical properties overall in tension, when compared to the untreated fibres, due to their enhanced interfacial adhesion and their alignment in the matrix. Results in compression yielded improvement only in compressive strength, with other properties being similar to the unreinforced matrices. No significant differences were observed between the magnetised (aligned fibres) and the untreated (randomly distributed) configurations in compression.

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The effect of waterborne polyurethane coating on the mechanical properties of epoxy-based composite containing recycled carbon fibres

Fazeli

Liu

Rudd

2022

Surfaces and Interfaces

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Modification of carbon fiber–polyurethane interface with carbon nanotubes

Cited by 4 publications

References 25 publications

Enhanced fracture toughness of nanostructured carbon‐fiber reinforced poly(urethane‐isocyanurate) composites at low concentrations

Enhanced fracture toughness of nanostructured carbon‐fiber reinforced poly(urethane‐isocyanurate) composites at low concentrations

Enhanced interfacial adhesion and mechanical performance of lightweight polyurethane foam reinforced with a low content of aligned magnetised short carbon fibres

The effect of waterborne polyurethane coating on the mechanical properties of epoxy-based composite containing recycled carbon fibres

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