Achieving Pseudo‐Ductile Behavior of Carbon Fiber Reinforced Polymer Composites via Interfacial Engineering

Szebényi, Gábor; Magyar, B.; Czigány, Tibor

doi:10.1002/adem.202000822

Cited by 8 publications

(3 citation statements)

References 19 publications

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“…At equal BN loadings of 10 and 20 vol%, layered composites show lower Young's modulus and ultimate tensile strength than uniformly structured fiber (U‐type fibers, Figure 4b), consistent with the rule of mixture calculations. [ 72,73 ] The relationship between layer numbers and mechanical properties was further investigated; the 32L10% fiber peaks the performances in both modulus and strength by 68% and 5% increases compared to the 4L10% fiber, respectively (Figure 4c). Also, a finite element modeling (FEM) simulation was conducted on a composite consisting of alternating layers with different stiffnesses, fixed bottom layers, and uniformly distributed force on the top surface (insets in Figure 4d).…”

Section: Resultsmentioning

confidence: 99%

“…This enhanced fracture resistance is likely due to the different mechanical properties between the layers, resembling the previously reported interlayer technique in laminates for toughness improvement. [ 73 ] Tables S2–S5 (Supporting Information) show the mechanical properties and energy absorptions for the 4L10%, 32L10%, 64L10%, and 128L10% fibers. Interestingly, as layer number increases, the percentage of fibers under tensile test showing stepwise fracture characteristic decreases, 100% for 4L10%, 60% for 32L10%, 20% for 64L10%, and 0% for 128L10% (Figure S14d, Supporting Information).…”

Section: Resultsmentioning

confidence: 99%

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Continuous Nanoparticle Patterning Strategy in Layer‐Structured Nanocomposite Fibers

Franklin

Ravichandran

et al. 2022

Adv Funct Materials

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Anisotropic polymer/nanoparticle composites display unique mechanical, thermal, electrical, and optical properties depending on confirmation and configuration control of the composing elements. Processes, such as vapor deposition, ice-templating, nanoparticle self-assembly, additive manufacturing, or layer-by-layer casting, are explored to design and control nanoparticle microstructures with desired anisotropy or isotropy. However, limited attempts are made toward nanoparticle patterning during continuous fiber spinning due to the thin-diameter cross section and 1D features. Thus, this research focuses on a new patterning technique to form ordered nanoparticle assembly in layered composite fibers. As a result, distinct layers can be retained with innovative tool design, unique material combinations, and precise rheology control during fiber spinning. The layer multiplyingenabled nanoparticle patterning is demonstrated in a few material systems, including polyvinyl alcohol (PVA)-boron nitride (BN)/PVA, polyacrylonitrile (PAN)-aluminum (Al)/PAN, and PVA-BN/graphene nanoplatelet (GNP)/ PVA systems. This approach demonstrates an unprecedentedly reported fiber manufacturing platform for well-managed layer dimensions and nanoparticle manipulations with directional thermal and electrical properties that can be utilized in broad applications, including structural supports, heat exchangers, electrical conductors, sensors, actuators, and soft robotics.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Continuous Nanoparticle Patterning Strategy in Layer‐Structured Nanocomposite Fibers

Franklin

Ravichandran

et al. 2022

Adv Funct Materials

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“…The stability of the interface connection plays a decisive role in the performance of the composite material [23]. The interface microstructure should be studied and the debonding phenomenon should be avoided.…”

Section: Observing Interface Microstructure Of Microvasculars In Asphalt Samplementioning

confidence: 99%

Smart Self-Healing Capability of Asphalt Material Using Bionic Microvascular Containing Oily Rejuvenator

et al. 2021

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It has become one of the research directions of intelligent materials for self-healing asphalt pavements to use a bionic microvascular containing oily rejuvenator. The rejuvenator in a microvascular can carry out the healing of asphalt micro-cracks, thus reducing the damage to and prolonging the life of asphalt pavement. The aim of this work was to investigate the smart self-healing capability of an asphalt/microvascular material through its microstructure and mechanical properties. Microstructure observation indicated no interface separation between the microvasculars and bitumen matrix. Micro-CT images showed that microvasculars dispersed in asphalt samples without accumulation or tangles. The phenomenon of microcracks healing without intervention was observed, which proved that the fractured asphalt sample carried out the self-healing process with the help of rejuvenator diffusing out from the broken microvasculars. The self-healing efficiency of asphalt samples was also evaluated through a tensile test considering the factors of microvasculars content, healing time and healing temperature. It was found that the tensile strength of the asphalt samples was greatly enhanced by the addition of microvasculars under a set test condition. Self-healing efficiency was enhanced with more broken microvasculars in the rupture interface of the asphalt sample. During two self-healing cycles, the self-healing efficiency of the asphalt sample with three microvascular per 1 cm2 of a broken interface were able to reach 80% and 86%. This proves that microvasculars containing rejuvenator play a practical role in the self-healing process of asphalt. With an increase in temperature from 0 to 30 °C, the self-healing capability of the asphalt samples increased dramatically. An increase in time increased the self-healing capability of the bitumen samples. At last, a preliminary mathematical model also deduced that the self-healing efficiency was determined by the individual healing steps, including release, penetration and diffusion of the rejuvenator agent.

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Development and characterisation of reparable, film-interleaved, pseudo-ductile hybrid composites

Marino

Czél

2023

Composites Part A: Applied Science and Manufacturing

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Achieving Pseudo‐Ductile Behavior of Carbon Fiber Reinforced Polymer Composites via Interfacial Engineering

Cited by 8 publications

References 19 publications

Continuous Nanoparticle Patterning Strategy in Layer‐Structured Nanocomposite Fibers

Continuous Nanoparticle Patterning Strategy in Layer‐Structured Nanocomposite Fibers

Smart Self-Healing Capability of Asphalt Material Using Bionic Microvascular Containing Oily Rejuvenator

Development and characterisation of reparable, film-interleaved, pseudo-ductile hybrid composites

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