Effects of chain length of polyether amine on interfacial adhesion of carbon fiber/epoxy composite in the absence or presence of polydopamine bridging platform

Wu, Qing; Wan, Qinqin; Yang, Xin; Wang, Fen; Zhu, Jianfeng

doi:10.1016/j.apsusc.2021.149162

Cited by 42 publications

(25 citation statements)

References 52 publications

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“…Figure 3 shows the FTIR and XRD spectra of ATP nanofibers, CF, PEI‐CF, and ‐ATP‐PEI‐CF. As shown in Figure 3(A), it could be found that the ATP‐PEI‐CF and PEI‐CF had characteristic absorption peaks which belonged to the C–H stretching vibration, the symmetric C=O stretching vibration (imide band I) and the C–N stretching vibration (imide band II) of PEI at 2964, 1720, and 1380 cm −1 , respectively 31,32 . This proved that the CF was successfully decorated with PEI.…”

Section: Resultsmentioning

confidence: 76%

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Carbon fiber modified by attapulgite for preparing ultra‐high molecular weight polyethylene composite with enhanced thermal, mechanical, and tribological properties

Meng

Wang

Líu

et al. 2022

Polymers for Advanced Techs

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The attapulgite nanofibers (ATP) were grafted on the surface of carbon fibers (CF) by polyetherimide (PEI) with long chain to reinforce the thermal, mechanical properties, and fretting wear resistance of ultra‐high molecular weight polyethylene. The results showed that the surface roughness of CF modified by ATP nanofibers were highly increased. Meanwhile, the thermal, mechanical, and tribological properties of the ATP‐PEI‐CF/UPE composite were significantly improved, especially the enhancement in heat distortion temperature, compressive modulus, and wear resistance. The improvement mechanisms of the corresponding properties were mainly attributed to the increase of mechanical interlocking of the matrix and the hybrid fillers, which could not only transfer the load and heat applied to the matrix to the fibers, but also impede the friction damage of the matrix during fretting wear process.

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Section: Resultsmentioning

confidence: 76%

“…(imide band II) of PEI at 2964, 1720, and 1380 cm À1 , respectively. 31,32 This proved that the CF was successfully decorated with PEI. In addition, the ATP-PEI-CF contained the characteristic peak at 1030 cm À1 that belonged to the vibration of Si-O-Si bond of ATP, which meant the ATP nanofibers were also assembled on the CF.…”

Section: Characterizationsmentioning

confidence: 79%

Carbon fiber modified by attapulgite for preparing ultra‐high molecular weight polyethylene composite with enhanced thermal, mechanical, and tribological properties

Meng

Wang

Líu

et al. 2022

Polymers for Advanced Techs

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“…In order to verify the advantage of this work, the interfacial strength and fracture toughness improvement of the modified composites in this work, compared with the state-of-the-art in the literature was presented by Figure 11 [ 15 , 22 , 36 , 37 , 38 , 39 ]. The reported modifications methods included constructing “rigid-flexible” interphase structure via layer-by-layer (LbL) approach using multilayer PDA/polyether amine (CF-(PDA-D400) 3 ) (39.2% IFSS increase and 99.8% fracture toughness increase) [ 15 ], polyether amine (PEA)/graphene oxide (GO) (CF/(PEA/GO) 9 ) (67.7% IFSS increase and 129.0% fracture toughness increase) [ 37 ], CF-PDA-PEA with longer chain length of PEA (41.8% IFSS increase) [ 22 ]; growing CNT on the CF-PDA by chemical vapor deposition (62.3% IFSS increase) [ 36 ], using polydopamine (PDA) as sizing on the surface of carbon fiber (21.0% fracture toughness increase) [ 38 ] and PEA/GO (CF-PgP) (94.4% fracture toughness increase) [ 39 ]. The effects of all these strategies on the interfacial strength and fracture toughness are inferior to this work (80.2% IFSS increase and 227.2% fracture toughness increase).…”

Section: Resultsmentioning

confidence: 98%

“…For CF-PEI-PDA ( Figure 4 d), a new peak assigned to -C=N appeared at 287.2 eV, which was produced in Schiff base reaction between the amino groups of PEI and quinone structure of PDA. Besides, N1s high resolution spectrum for CF-PEI-PDA was also fitted in Figure 4 g. It could be seen that additional peaks centered at about 399.8 eV, 402.0 eV, 400.0 eV and 398.4 eV, which was corresponding to -C-NH-, -C-NH 2 , -N= and -NH [ 22 , 23 ]. All the XPS results are consistent with the FTIR and Raman results.…”

Section: Resultsmentioning

confidence: 99%

“…The interlaminar shear strength (ILSS) of the modified composites improved up to 43.38%, compared with the unmodified composites. Wu et al [ 22 ] constructed a nacre-like interphase by alternatively depositing “rigid” polydopamine (PDA) and “flexible” polyether amine on carbon fiber surface via the layer-by-layer (LbL) approach. The interfacial strength and toughness increased by 39.2% and 99.8% compared with the unmodified composites, respectively.…”

Section: Introductionmentioning

confidence: 99%

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Constructing a Double Alternant “Rigid-Flexible” Structure for Simultaneously Strengthening and Toughening the Interface of Carbon Fiber/Epoxy Composites

et al. 2022

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An optimized “rigid-flexible” structure with multistage gradient modulus was constructed on carbon fiber (CF) surface via chemical grafting using “flexible” polyethyleneimine (PEI) and “rigid” polydopamine (PDA) between “rigid” CF and “flexible” epoxy (EP) to elaborate a double alternant “rigid-flexible” structure for simultaneously strengthening and toughening CF/EP composites. PDA and PEI polymers can greatly enhance the roughness and wettability of CF surfaces, further strengthening the mechanical interlocking and chemical interactions between CFs and epoxy. Besides, the “rigid-flexible” structure endows the interface with a gradient transition modulus, which could uniformly transfer internal stress and effectively avoid the stress concentration. Moreover, the double alternant “rigid-flexible” could buffer the external loading, induce more micro cracks and propagation paths and, thereby, consume more energy during the destruction of the composite. The interfacial shear strength, interlaminar shear strength, impact strength increased by 80.2%, 23.5% and 167.2%, and the fracture toughness improved by 227.2%, compared with those of the unmodified CF composite, respectively. This creative strategy and design afford a promising guidance for the preparation and production of advanced CF/EP structural materials with high strength and toughness.

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Improving mechanical and thermal properties of short carbon fiber/polyamide 6 composites through a polydopamine/nano‐silica interface layer

Song

Peng

et al. 2022

J of Applied Polymer Sci

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Carbon fiber (CF) reinforced matrix composites have been applied widely, however, the interfacial adhesion of composites is weak due to smooth and chemically inert of CF surface. To solve this problem, A polydopamine/nanosilica (PDA-SiO 2 ) interfacial layer on carbon fiber surface was constructed via polydopamine and nano-SiO 2 (CF-PDA-SiO 2 ) by a facile and effective method to reinforce polyamide 6 composites (CFs/PA6). The effects of PDA-SiO 2 interfacial layer on crystallization structure and behavior, thermal properties, and mechanical properties of CFs/PA6 composites were investigated. Furthermore, interfacial reinforcement mechanism of composites has been discussed. This interfacial layer greatly increased the number of active groups of CF surface and its wettability obviously. The tensile strength of CF-PDA-SiO 2 /PA6 composites increased by 28.09%, 19.37%, and 26.22% compared to untreated-CF/ PA6, CF-PDA/PA6, and CF-SiO 2 /PA6 composites, respectively, which might be caused by the increased interfacial adhesion between CF and PA6 matrix. The thermal stability, crystallization temperature, crystallinity, and glass transition temperature (T g ) of CF-PDA-SiO 2 /PA6 composites improved correspondingly, attributing to the heterogeneous nucleation of nano-SiO 2 in the crystalline area and hydrogen bonds with molecular chains of PA6 in the amorphous area. This work provides a novel strategy for the construction of interfaces suitable for advanced CF composites with different structures.

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Effects of chain length of polyether amine on interfacial adhesion of carbon fiber/epoxy composite in the absence or presence of polydopamine bridging platform

Cited by 42 publications

References 52 publications

Carbon fiber modified by attapulgite for preparing ultra‐high molecular weight polyethylene composite with enhanced thermal, mechanical, and tribological properties

Carbon fiber modified by attapulgite for preparing ultra‐high molecular weight polyethylene composite with enhanced thermal, mechanical, and tribological properties

Constructing a Double Alternant “Rigid-Flexible” Structure for Simultaneously Strengthening and Toughening the Interface of Carbon Fiber/Epoxy Composites

Improving mechanical and thermal properties of short carbon fiber/polyamide 6 composites through a polydopamine/nano‐silica interface layer

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