Effects of carbon nanotube-polydopamine hybridization on the mechanical properties of short carbon fiber/polyetherimide composites

Sun, Zhenli; Guo, Feng; Li, Yuanqing; Hu, Jin‐Ming; Liu, Quan-Xiu; Mo, Xiaofei; Huang, Pei; Fu, Shao‐Yun

doi:10.1016/j.compositesb.2022.109848

Cited by 27 publications

(10 citation statements)

References 60 publications

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“…Meanwhile, the new double peaks appeared at 2924 cm − 1 and 2856 cm − 1 are associated with C-H bonds stretching vibrations. The peaks at 1625 cm − 1 result from the stretching vibration of C = C bond in the indole aromatic ring of PDA [30]. The new band at 1499 cm − 1 corresponds to the shearing vibration of N-H [31].…”

Section: Surface Chemical Structures Of Cfmentioning

confidence: 99%

“…Presumably it's because that the decrease of single fiber tensile strength is caused by stress concentration on the aggregates of PDA nanoparticles on fiber surface as exhibited in Figure 2 E, which might enhance the crack initiation and propagation. [31]…”

Section: The Tensile Strength Of Monofilamentmentioning

confidence: 99%

“…The peaks at 1625 cm À1 result from the stretching vibration of C C bond in the indole aromatic ring of PDA. [31] The new band at 1499 cm À1 corresponds to the shearing vibration of N H. [33] The peak at 1394 cm À1 represents the stretching vibration of and 1625 bonds. [34] And, the peaks at 1243 and 1056 cm À1 both derive from shearing vibration of C O bonds.…”

Section: Surface Chemical Structures Of Cfmentioning

confidence: 99%

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Carbon fiber‐reinforced epoxy composite properties improvement by incorporation of polydopamine sizing at fiber–matrix interface

et al. 2023

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To gain better interfacial and mechanical performances of carbon ber reinforced epoxy resin (CF/EP) composites, the surface modi cation of CF was carried out via a simple mild method. The polydopamine (PDA) was applied to size the CF, as well as the in uence of PDA sizing time on CF were elucidated. As the PDA deposited time increases, a growing number of PDA nanoparticles were adhered on CF surface, associating with appearance of PDA agglomerates. Through analyzing the results, the optimum PDA sized time was 24 h. The introduction of PDA increase the chemical reaction and mechanical interlocking between ber and matrix. Compared with unsized CF, the tensile strength of PDA 24 h sized CF was improved by 27.0%, the interlaminar shear strength, exural and impact strength of PDA 24 h sized CF/EP composites increased by 103.7%, 65.6% and 163.6%, respectively. Furthermore, the fracture topographies of CF/EP composite strikingly implied that the PDA has a positive impact on the mechanical performances of CF/EP composites.

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Section: Surface Chemical Structures Of Cfmentioning

confidence: 99%

Section: The Tensile Strength Of Monofilamentmentioning

confidence: 99%

Section: Surface Chemical Structures Of Cfmentioning

confidence: 99%

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Carbon fiber‐reinforced epoxy composite properties improvement by incorporation of polydopamine sizing at fiber–matrix interface

et al. 2023

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“…Another effective method is to introduce reinforced materials to improve the thermal conductivity of PEI to avoid warping and deformation, such as carbon nanotubes (CNTs), graphene and carbon fiber (CF), which can also provide mechanical strength to the polymers. Among these reinforcements, CF has been widely used in the manufacture of light weight and high strength composite materials, 19,20 due to its advantages of high modulus, high strength and low thermal expansion coefficient. The mechanism of CF reinforced polymers is that CF can bear the load, and the polymer protects the fiber and transfer the stress to CF 21,22 .…”

Section: Introductionmentioning

confidence: 99%

Enhancement on the mechanical properties of 3D printing PEI composites via high thermal processing and fiber reinforcing

Zhang

Wang

Jia

et al. 2023

Polymers for Advanced Techs

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Polyetherimide (PEI) is a high‐performance material that maintains good properties at high temperature. Combining PEI with 3D printing is helpful to broaden the application of PEI, but the printed PEI parts have poor mechanical properties due to its interlayer porous structure. Herein, high thermal processing (cavity and platform temperature) is utilized to improve the bonding of PEI filaments during 3D printing. After optimizing, the mechanical properties of printed PEI parts can reach to the performance of injected PEI. Moreover, carbon fiber (CF) is used to further enhance the thermal and mechanical properties of PEI. The results show that the mechanical enhancement of short length CF (0.15 mm) is less effective than the longer CF (3 mm‐CF). After the CF oxidation treatment, the tensile strength of printed PEI is increased by nearly 6.07% compared to the untreated CF/PEI. The work provides a novel approach for developing 3D printed CF/PEI composites for the further application.

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“…Modifying the surface with CNTs could be achieved by different technologies, such as replacing the sizing agent pre-coated on the surface of carbon fiber [ 26 , 27 , 28 ], electrophoretic deposition [ 29 , 30 ], and chemical vapor deposition [ 31 , 32 , 33 ]. The conventional method is the sizing technology, which replaces the original sizing agent with a new agent that has a better affinity with CNTs.…”

Section: Introductionmentioning

confidence: 99%

Interfacial Strengthening and Self-Monitoring in Carbon Fiber-Reinforced Composites via Carbon Nanotube-Based Damage Sensors

Sun

Yang

et al. 2022

Nanomaterials

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Carbon fiber-reinforced polymers are important constituents of aerospace materials. However, due to the inert surface of CFs, their interfacial property is relatively weak, which severely hinders their practical applications. Here, we deposited multi-walled carbon nanotubes (MWCNTs) along with a coupling agent on the surface of carbon fiber to improve the interfacial properties of the carbon fiber/resin. Via a simple dip-coating method, the MWCNTs were uniformly distributed on the CF surface with the assistance of the pre-coated coupling agent. The interfacial shear strength between the fiber and the matrix was significant enhanceed when the CF was loaded with the coupling agent and the MWCNTs. In addition, the MWCNTs were used as sensors to in-situ monitor the interfacial state in order to elucidate the interfacial strengthening mechanism. It revealed that the collaborative contribution of the coupling agent and the MWCNTs in the interphase region is the key to the high interfacial strength.

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Effects of carbon nanotube-polydopamine hybridization on the mechanical properties of short carbon fiber/polyetherimide composites

Cited by 27 publications

References 60 publications

Carbon fiber‐reinforced epoxy composite properties improvement by incorporation of polydopamine sizing at fiber–matrix interface

Carbon fiber‐reinforced epoxy composite properties improvement by incorporation of polydopamine sizing at fiber–matrix interface

Enhancement on the mechanical properties of 3D printing PEI composites via high thermal processing and fiber reinforcing

Interfacial Strengthening and Self-Monitoring in Carbon Fiber-Reinforced Composites via Carbon Nanotube-Based Damage Sensors

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