Poly(ethylene-co-methacrylic acid) coated carbon fiber for self-healing composites

Peñas-Caballero, Mónica; Chemello, Enrico; Grande, Antonio Mattia; Santana, Marianella Hernández; Verdejo, Raquel; López–Manchado, Miguel A.

doi:10.1016/j.compositesa.2023.107537

Cited by 7 publications

(1 citation statement)

References 40 publications

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“…Among these self‐healing methods, EMAA self‐healing materials has attracted widespread attention due to higher healing efficiency and multiple healing function. In recent years, Peñas‐Caballero et al 31 prepared a nanoparticle solution by dissolving EMAA nanoparticles into tetrahydrofuran and investigated the toughening properties of solution spraying in carbon fiber composites. Wang et al 32 prepared EMAA films by modifying EMAA with carbon nanotubes, and investigated the tensile properties of the T‐shaped structure by using an electrothermal activation method.…”

Section: Introductionmentioning

confidence: 99%

Investigations on toughening and self‐healing performance of plain woven composites with mendable polymer stitches

Li,

Tie,

2024

Polymer Composites

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This paper investigates toughening and self‐healing properties of plain woven composite structure with poly[ethylene‐co‐methacrylic acid] (EMAA) stitches. Firstly, the cantilever beam specimens with different stitched spacing were performed to determine inter‐laminar fracture toughness. Subsequently, the finite element models of EMAA stitched cantilever beam was established to predict the toughening effects based on nonlinear spring and cohesive zone model (CZM). The force‐displacement responds of experimental and simulation results show excellent correlation. Finally, the toughening and healing mechanism of the stitched plain woven structure were explored. Compared with the original specimen, the EMAA stitched structure shows an excellent toughening ability. After heating, the damaged structure was healed through pressure deliver mechanism to restore the interlaminar fracture toughness of the composite.Highlights Thermoplastic EMAA filaments with self‐healing properties were sewn into the woven composite. The EMAA stitched woven composite structure exhibits excellent interlaminar toughening and healing properties. Finite element model combined non‐linear spring and CZM was established to predict the toughening effects. The toughening and self‐healing mechanisms of EMAA stitched plain woven structure were revealed in detail.

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Section: Introductionmentioning

confidence: 99%

Investigations on toughening and self‐healing performance of plain woven composites with mendable polymer stitches

Li,

Tie,

2024

Polymer Composites

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Effects of particle size and particle concentration of poly (ethylene‐co‐methacrylic acid) on properties of epoxy resin

Nascimento,

Trappe,

Pavasaryte

et al. 2024

J of Applied Polymer Sci

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Self‐healing polymers have been developed to improve durability and reduce costs associated with maintenance during service. The addition of thermoplastics to thermosets to produce mendable polymers appears as a promising self‐healing technique. In this study, poly (ethylene‐co‐methacrylic acid) (EMAA) was added to epoxy resin and the effects of EMAA addition on epoxy properties were evaluated. Specimens with two different contents of thermoplastic and particles sizes were manufactured. A two‐level full factorial experimental design was used to evaluate the effect of particle size and particle content on properties of epoxy modified with addition of EMAA. Tensile tests and dynamic mechanical analysis (DMA) were used and the evaluated responses were tensile strength, modulus of elasticity, and glass transition temperature (Tg). X‐ray computed tomography (XCT) was used to investigate particle size and concentration after manufacturing. It was found that the particle concentration has greater effects on stress–strain behavior of epoxy while Tg was not significantly affected by neither of the analyzed entrance variables.

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Interface strengthening for carbon fiber‐reinforced poly(ether‐ether‐ketone) laminated composites by introducing fluorene‐containing branched poly(aryl‐ether‐ketone)

Liu,

Fan,

et al. 2024

Interdisciplinary Materials

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Fluorene‐containing branched poly(aryl‐ether‐ketone) (BFPAEK) with terminal hydroxyl groups is synthesized by random copolycondensation reaction; then, the CF@BFPAEK/PEEK laminated composite is prepared by the “powder impregnation‐high temperature compression molding” method with poly(ether‐ether‐ketone) (PEEK) as the matrix and BFPAEK‐modified carbon fiber (CF@BFPAEK) as the reinforcement. When the content of branched units in BFPAEK is 10% and the coating amount of BFPAEK on the carbon fiber (CF) surface is 3 wt%, the CF@BFPAEK/PEEK laminated composite has outstanding mechanical properties, with an interlaminar shear strength (ILSS) of 57.3 MPa and flexural strength of 589.4 MPa, which are 80.2% and 44.3% higher than those of the pure CF/PEEK laminated composite (31.8 and 408.4 MPa), respectively. After 288 h of hydrothermal aging and high/low‐temperature alternating aging, the corresponding retention rate of ILSS and flexural strength are respectively 87.9% and 84.7%, higher than those of pure CF/PEEK laminated composites (74.5% and 70.4%). The thermal conductivity coefficient and temperature for 5% weight loss of CF@BFPAEK/PEEK laminated composite are 1.85 W m−1 K−1 and 538.0°C, respectively.

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Poly(ethylene-co-methacrylic acid) coated carbon fiber for self-healing composites

Cited by 7 publications

References 40 publications

Investigations on toughening and self‐healing performance of plain woven composites with mendable polymer stitches

Investigations on toughening and self‐healing performance of plain woven composites with mendable polymer stitches

Effects of particle size and particle concentration of poly (ethylene‐co‐methacrylic acid) on properties of epoxy resin

Interface strengthening for carbon fiber‐reinforced poly(ether‐ether‐ketone) laminated composites by introducing fluorene‐containing branched poly(aryl‐ether‐ketone)

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