Effect of carbon nanotubes and octa-aminopropyl polyhedral oligomeric silsesquioxane on the surface behaviors of carbon fibers and mechanical performance of composites

Shen, Wenqi; Ma, Ruina; Du, An; Cao, Xiaoyan; Hu, Hebin; Wu, Zhengbin; Zhao, Xue; Fan, Yongzhe; Cao, Xiaoming

doi:10.1016/j.apsusc.2018.03.219

Cited by 27 publications

(14 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The peak of M-LCF at 1048 cm –1 was assigned to the SiOC stretching vibration, demonstrating the reaction between silane and LCF. The peak of M-LCF at 471 cm –1 was associated with the asymmetric and symmetric SiOSi bending, which represented the reactions between silane monomers . Moreover, after modification with VTEO, the peak of LCF at approximately 3396 cm –1 evidently shifted to 3341 cm –1 .…”

Section: Resultsmentioning

confidence: 95%

“…The peak of M-LCF at 471 cm −1 was associated with the asymmetric and symmetric SiOSi bending, which represented the reactions between silane monomers. 45 Moreover, after modification with VTEO, the peak of LCF at approximately 3396 cm −1 evidently shifted to 3341 cm −1 . This result indicated that the formation of strong electron-donating groups (alkoxy groups) affected the formation of H-bonds between the NR and M-LCF.…”

Section: ■ Experimental Sectionmentioning

confidence: 93%

See 1 more Smart Citation

Natural Rubber-Based Elastomer Reinforced by Chemically Modified Multiscale Leather Collagen Fibers with Excellent Toughness

Wang

et al. 2020

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

Natural rubber (NR) composite elastomers have been increasingly explored recently, because they are renewable and environment-friendly. The excellent toughness of rubber composites is the premise to their wide applications. Unfortunately, an increase in tensile strength for NR is always accompanied by a decrease in extensibility. In this paper, an NR-based composite elastomer reinforced by triethoxyvinylsilane-modified leather collagen fibers (M-LCF) was fabricated for the first time to improve the tensile strength and the extensibility of the rubber composite simultaneously. The synergistic effect of the multiscale structure of M-LCF in toughening and its interfacial interaction with rubber promoted the dispersion of leather collagen fibers in the rubber and facilitated effective interfacial stress transfer, thereby enhancing the mechanical properties of the composite. The tensile strength, elongation, and toughness at the break of the composite elastomer containing 5%-modified collagen fibers reached 18.76 MPa, 740%, and 54.09 MJ·m–3, respectively, which were 31%, 2%, and 64% higher than that of the pure rubber elastomer, respectively.

show abstract

Section: Resultsmentioning

confidence: 95%

Section: ■ Experimental Sectionmentioning

confidence: 93%

Natural Rubber-Based Elastomer Reinforced by Chemically Modified Multiscale Leather Collagen Fibers with Excellent Toughness

Wang

et al. 2020

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

show abstract

“…Because the PDA layer has a high adherent, it can be a powerful and effective platform for subsequent operation. [38][39][40] Polyethyleneimine (PEI) branched polymer with massive amine groups is an ideal regulator for the surface functionalization of fiber and the interface construction of the fiber composites. [41][42][43] The PEI polymer coated onto fiber surface could increase its surface polarity and form chemical bonding with epoxy molecules.…”

Section: Introductionmentioning

confidence: 99%

Enhancing interfacial adhesion and mechanical performance ofPBOfibers composites through mussel‐inspired molecular regulation of interphase structure

Liu

Chen

et al. 2021

Polymer Composites

View full text Add to dashboard Cite

Poor interfacial properties are always one of the bottleneck problems limiting the development of the PBO fiber/epoxy composites. To solve this, we demonstrated a mussel-inspired molecular regulation strategy of interphase structure using the layer-by-layer construction of rigid (PDA) and flexible (PEI) molecules without fiber structure damage. The precise control on the molecular scale can maximally increase the roughness and polar functional group on the fiber surface, thus enhance the chemical bonding and the mechanical interlocking of the interfacial adhesion. In comparison with the untreated fiber, the IFSS and ILSS value of fiber with (PDA/PEI)n have an increment of 86.85% and 80.08%, respectively. Besides, the overall mechanical performance, such as impact strength and dynamic thermal-mechanical behavior, was also improved significantly, owing to the improved physical-mechanical attributes of the interphase. In brief, our study presents a non-destructive interface regulation of PBO fiber composite to enhance its interfacial adhesion and mechanical performance and optimize its structure/function integrated design.

show abstract

“…For instance, Sun et al [ 6 ] decorated carbon fibers with graphene oxide/polymer compound for better adhesion of fibers to the polymeric matrix, and improvement of mechanical properties in the composites. Shen et al [ 7 ] employed carbon nanotubes (CNTs) along with a silane coupling agent to improve the mechanical properties of CF-reinforced plastic (CFRP) composites. They reported a 13.98% improvement in interlaminar shear strength (ILSS) of epoxy-based CFRPs.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Surface Energetics of CNT-Grafted Carbon Fibers for Superior Electrical and Mechanical Properties in CFRPs

Badakhsh

Kim

2020

Polymers

View full text Add to dashboard Cite

Surface enhancement of components is vital for achieving superior properties in a composite system. In this study, carbon nanotubes (CNTs) were grown on carbon fiber (CF) substrates to improve the surface area and, in turn, increase the adhesion between epoxy-resin and CFs. Nickel (Ni) was used as the catalyst in CNT growth, and was coated on CF sheets via the electroplating method. Surface energetics of CNT-grown CFs and their work of adhesion with epoxy resin were measured. SEM and TEM were used to analyze the morphology of the samples. After the optimization of surface energetics by catalyst weight ratio (15 wt.% Ni), CF-reinforced plastic (CFRP) samples were prepared using the hand lay-up method. To validate the effect of chemical vapor deposition (CVD)-grown CNTs on CFRP properties, samples were also prepared where CNT powder was added to epoxy prior to reinforcement with Ni-coated CFs. CFRP specimens were tested to determine their electrical resistivity, flexural strength, and ductility index. The electrical resistivity of CNT-grown CFRP was found to be about 9 and 2.3 times lower than those of as-received CFRP and CNT-added Ni-CFRP, respectively. Flexural strength of CNT-grown Ni-CFRP was enhanced by 52.9% of that of as-received CFRP. Interestingly, the ductility index in CNT-grown Ni-CFRP was 40% lower than that of CNT-added Ni-CFRP. This was attributed to the tip-growth formation of CNTs and the breakage of Ni coating.

show abstract

Effect of carbon nanotubes and octa-aminopropyl polyhedral oligomeric silsesquioxane on the surface behaviors of carbon fibers and mechanical performance of composites

Cited by 27 publications

References 29 publications

Natural Rubber-Based Elastomer Reinforced by Chemically Modified Multiscale Leather Collagen Fibers with Excellent Toughness

Natural Rubber-Based Elastomer Reinforced by Chemically Modified Multiscale Leather Collagen Fibers with Excellent Toughness

Enhancing interfacial adhesion and mechanical performance ofPBOfibers composites through mussel‐inspired molecular regulation of interphase structure

Enhanced Surface Energetics of CNT-Grafted Carbon Fibers for Superior Electrical and Mechanical Properties in CFRPs

Contact Info

Product

Resources

About