Development of a two-matrix composite material fabricated by 3D printing

Azarov, A. V.; Антонов, Ф. К.; Vasil'ev, V. V.; Golubev, Mikhail; Krasovskii, D. S.; Razin, A. F.; Salov, V. A.; Stupnikov, V. V.; Khaziev, Aleksey

doi:10.1134/s1995421217010026

Cited by 36 publications

(23 citation statements)

References 1 publication

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“…After the fibre filament was printed by ME, the sample was oven cured. A thermosetting polymer was also used by Azarov et al [8], where dry fibre tows were first impreg- nated with epoxy resin and cured to produce the fibre filament, which was then extruded together with a thermoplastic polymer. A list of polymer and fibres used in the literature is summarized in Table 2.…”

Section: Methodsmentioning

confidence: 99%

Material extrusion additive manufacturing of continuous fibre reinforced polymer matrix composites: A review and outlook

Zhuo

Ashcroft

et al. 2021

Composites Part B: Engineering

136

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Section: Methodsmentioning

confidence: 99%

Material extrusion additive manufacturing of continuous fibre reinforced polymer matrix composites: A review and outlook

Zhuo

Ashcroft

et al. 2021

Composites Part B: Engineering

136

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“…These challenges could be (partly) overcome by using micropultrusions instead of fiber tows, as they contain already aligned fibers, matrix material does not have to migrate into the fiber bundles, and the inherent stiffness of the micropultrusions could enable 3D reinforcement as well. Indeed, the potential for 3D printing of two-matrix composites has recently been demonstrated by others, after completion of this research [32].…”

Section: Potential Applicationsmentioning

confidence: 72%

Two-matrix composites: Carbon fiber micropultrusions embedded in flexible epoxy matrices

Callens

Bergsma

2018

Composites Part A: Applied Science and Manufacturing

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Two-matrix composites combine fibers with two distinct matrices. This is achieved by impregnating fiber bundles with a high-stiffness matrix and embedding the cured bundles in a flexible matrix. Two-matrix composites have been shown to offer unprecedented combinations of transverse flexibility and longitudinal tensile strength, and could offer improved fiber alignment and manufacturability. Here, we explore this concept further by embedding carbon fiber micropultrusions in flexibilized epoxy matrices and examining the longitudinal compression behavior. Our results on thin-walled rings reveal that the failure mode depends on micropultrusion diameter, with small diameters resulting in micropultrusion kinking and larger diameters in splitting and crushing. Additionally, we find that two-matrix composites can offer higher compression strength than conventional composites with the same flexible matrix, despite a lower fiber volume fraction. The inherent manufacturing advantages and high anisotropy could make two-matrix composites interesting candidates for specific applications, such as morphing wings or additively manufactured composites.

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“…Azarov et al [ 160,161 ] developed a process involving two matrix systems: a modified thermoset epoxy resin is combined with a thermoplastic material. Additives in the thermoset resin increase its adhesion to the thermoplastic material.…”

Section: Continuous Processing Of In Situ Impregnated Fiber Rovings: Current Process Technologiesmentioning

confidence: 99%

An overview on current manufacturing technologies: Processing continuous rovings impregnated with thermoset resin

et al. 2021

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The demand for products made of fiber‐reinforced polymer composites (FRPC) is constantly growing. These lightweight products are characterized by high stiffness, high tensile strength, and high service life. FRPC processes that employ thermoset‐impregnated continuous rovings are easily automated and provide the products with the highest unidirectional tensile strength. A critical disadvantage of continuous fiber‐reinforced polymers is caused by relatively high production costs. Among others, three main factors contribute to these production costs: (1) material costs, especially when carbon fibers are used, (2) costs for manufacturing semi‐finished products, such as textiles or preimpregnated fabrics, and (3) costs for waste occurring along the entire chain of process steps. In this context, one group of processes shows outstanding characteristics: processes in which rovings are in situ impregnated with a thermoset resin and then directly processed. Wet filament winding and pultrusion are the most popular but not the only representatives of this group. For all these processes, in situ impregnation is the key element, and various technologies have been developed for this purpose, each with its own unique fluid‐mechanical effects on rovings. A fundamental understanding of these effects is crucial to achieve products of the utmost quality. The paper at hand provides an overview of manufacturing processes that employ in situ impregnation of continuous rovings, specifically focusing on impregnation technologies. On this basis, phenomenological models describing the effects on the rovings during processing (impregnation, tension, and spreading) are reviewed.

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Development of a two-matrix composite material fabricated by 3D printing

Cited by 36 publications

References 1 publication

Material extrusion additive manufacturing of continuous fibre reinforced polymer matrix composites: A review and outlook

Material extrusion additive manufacturing of continuous fibre reinforced polymer matrix composites: A review and outlook

Two-matrix composites: Carbon fiber micropultrusions embedded in flexible epoxy matrices

An overview on current manufacturing technologies: Processing continuous rovings impregnated with thermoset resin

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