Size limitations on achieving tough and healable fibre reinforced composites through the use of thermoplastic nanofibres

Cohades, Amaël; Daelemans, Lode; Ward, Charlie; Meireman, Timo; Paepegem, Wim Van; Clerck, Karen De; Michaud, Véronique

doi:10.1016/j.compositesa.2018.07.002

Cited by 12 publications

(9 citation statements)

References 41 publications

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“…This allows to immediately cure the interleaved composite laminates at elevated temperatures (T > 60 � C) as is done in many industrial settings. PCL nanofibers immediately melt and dissolve into the epoxy matrix resin [36] when cured at elevated temperatures resulting in a loss of the nanofibrous morphology as well as bad mode II delamination resistance (Fig. 8).…”

Section: Influence Of High Curing Temperature On the Interlaminar Framentioning

confidence: 99%

Delamination resistant composites by interleaving bio-based long-chain polyamide nanofibers through optimal control of fiber diameter and fiber morphology

Meireman

Daelemans

Rijckaert

et al. 2020

Composites Science and Technology

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In this work an innovative electrospinning system is proposed that simultaneously has an adequate temperature resistance, a high increase in mode I (þ51%) and mode II (þ96%) delamination performance and can be commercially produced. Interleaving nanofibrous veils can potentially solve the issue of the limited delamination resistance encountered in composite laminates, but industrial upscaling has always been impeded by one or more critical factors. These constraining factors include a limited temperature stability of the nanofibers, a lack in simultaneous mode I and II delamination performance increase and the complexity of the electrospinning system because non-commercial polymers or specialty nanofibers (e.g. coaxial) are required. In this paper, a robust electrospinning system is proposed that is the first to overcome all major hurdles to make nanofiber toughening industrially viable. A new class of nanofibers based on biosourced polyamide 11 and its poly(ether-block-amide) co-polymers is used to deal with those shortcomings. The nanofibers have tuneable diameters down to 50 nm and cross-section morphologies ranging from circular to ribbon-shaped. The key to this work is the fundamental underpinning of the toughening effect using a broad range of interleaves with different mechanical and thermal properties, fiber diameters and fiber morphologies, all produced from the same bio-based base polymer. Generally, round and thin nanofibers performed better than larger and ribbon-like fibers. The relationship between the fiber morphology and the delamination performance is further underpinned using detailed analysis of the fracture surface. Ultimately, this results in a range of optimized nanofibrous veils capable of improving the delamination resistance considerably without suffering from the aforementioned drawbacks.

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Section: Influence Of High Curing Temperature On the Interlaminar Framentioning

confidence: 99%

Delamination resistant composites by interleaving bio-based long-chain polyamide nanofibers through optimal control of fiber diameter and fiber morphology

Meireman

Daelemans

Rijckaert

et al. 2020

Composites Science and Technology

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show abstract

“…This allows to immediately cure the interleaved composite laminates at elevated temperatures (T > 60°C) as is done in many industrial settings. PCL nanofibers immediately melt and dissolve into the epoxy matrix resin [36] when cured at elevated temperatures resulting in a loss of the nanofibrous morphology as well as bad mode II delamination resistance (Figure 8). On the contrary, the nanofibrous morphology of PA11-based nanofibers is retained in the final structure and a good mode I and mode II delamination performance are obtained.…”

Section: Influence Of High Curing Temperature On the Interlaminar Fracture Toughnessmentioning

confidence: 99%

Electrospun nanofibrous interleaves for improved low velocity impact resistance of glass fibre reinforced composite laminates

et al. 2018

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“…Several interleave structures have been experimented on within GFRP composites such as polycarbonate, PCL, graphene, etc. Other relevant works on interleaved GFRP composites include refs − . In 2020, Shrivastava and Singh published a detailed review on the interlaminar toughening of laminated composites.…”

Section: Effects Of Interleaving On Various Properties Of Fiber-reinf...mentioning

confidence: 99%

Interleaving in Composites for High-Performance Structural Applications

Sasidharan

Anand

2022

Ind. Eng. Chem. Res.

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Fiber-reinforced polymer composites find extensive applications ranging from sporting goods to aircraft components. Nonetheless, the weak interlaminar properties of laminated composites impose challenges in the design of primary load-bearing structures. The incorporation of additives (e.g., particles, films, and fibers) can overcome these limitations, offering additional functionalities to composites. Interleaving in composites generally refers to the incorporation of materials at the interface between two fiber plies so as to improve various properties. Being a simple technique to integrate in the production line, interleaving is recognized as an industrially significant and commercially viable method of modifying laminated composites. In this Review, an effort to assess state-of-the-art research on interleaving is attempted. Methods, applications, and the influence of interleaves on various properties of composites are also discussed. Data from the most recent research works on interleaved composites are compiled in an attempt to aid and encourage further developments among industries and academia.

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Size limitations on achieving tough and healable fibre reinforced composites through the use of thermoplastic nanofibres

Cited by 12 publications

References 41 publications

Delamination resistant composites by interleaving bio-based long-chain polyamide nanofibers through optimal control of fiber diameter and fiber morphology

Delamination resistant composites by interleaving bio-based long-chain polyamide nanofibers through optimal control of fiber diameter and fiber morphology

Electrospun nanofibrous interleaves for improved low velocity impact resistance of glass fibre reinforced composite laminates

Interleaving in Composites for High-Performance Structural Applications

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