Hierarchical composites with high-volume fractions of carbon nanotubes: Influence of plasma surface treatment and thermoplastic nanophase-modified epoxy

Rider, Andrew N.; Yeo, Eudora; Gopalakrishna, J.; Thostenson, Erik T.; Brack, Narelle

doi:10.1016/j.carbon.2015.07.076

Cited by 20 publications

(10 citation statements)

References 52 publications

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“…Toughening the thermoset matrix with thermoplastic polymers, especially engineering thermoplastics, has received much attention because it generally does not cause dramatic decrease to other mechanical or physical properties [88][89][90][91].…”

Section: Thermoplastic Polymermentioning

confidence: 99%

A Review of the Polymer for Cryogenic Application: Methods, Mechanisms and Perspectives

Chen

Yuan

et al. 2021

Polymers

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Recently, the application of polymer-based composites at cryogenic conditions has become a hot topic, especially in aerospace fields. At cryogenic temperature, the polymer becomes more brittle, and the adverse effect of thermal stress induced by temperature is more remarkable. In this paper, the research development of thermoset and thermoplastic polymers for cryogenic applications are all reviewed. This review considers the literature concerning: (a) the cryogenic performance of modified thermoset polymers and the improving mechanisms of the reported modification methods; (b) the cryogenic application potential of some commercial thermoplastic polymers and the cryogenic performance of modified thermoplastic polymers; (c) the recent advance in the use of polymer for special cryogenic environment-liquid oxygen. This paper provides a comprehensive overview of the research development of the polymer for cryogenic application. Moreover, future research directions have been proposed to facilitate its practical applications in aerospace.

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Section: Thermoplastic Polymermentioning

confidence: 99%

A Review of the Polymer for Cryogenic Application: Methods, Mechanisms and Perspectives

Chen

Yuan

et al. 2021

Polymers

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“…In recent work using plasma treatment of CNT-modified quartz fibers and toughened epoxy, increases up to 80% of the in-plane shear strength were measured when good resin wetting was achieved and CNTs occupied the interstitial fiber regions. 50 The significant improvements in the IFSS and specific energy up to debond observed for the SG/EP-CNT sample compared to the baseline may be attributed to the improved toughness of the interface resulting from CNT pullout due to the limited bonding between the matrix and 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 25 This study demo...…”

Section: Influence Of Pei-cnt Coating On Ifssmentioning

confidence: 99%

Tailoring Interfacial Properties by Controlling Carbon Nanotube Coating Thickness on Glass Fibers Using Electrophoretic Deposition

Tamrakar¹,

An²,

Thostenson³

et al. 2016

ACS Appl. Mater. Interfaces

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The electrophoretic deposition (EPD) method was used to deposit polyethylenimine (PEI) functionalized multiwall carbon nanotube (CNT) films onto the surface of individual S-2 glass fibers. By varying the processing parameters of EPD following Hamaker's equation, the thickness of the CNT film was controlled over a wide range from 200 nm to 2 μm. The films exhibited low electrical resistance, providing evidence of coating uniformity and consolidation. The effect of the CNT coating on fiber matrix interfacial properties was investigated through microdroplet experiments. Changes in interfacial properties due to application of CNT coatings onto the fiber surface with and without a CNT-modified matrix were studied. A glass fiber with a 2 μm thick CNT coating and the unmodified epoxy matrix showed the highest increase (58%) in interfacial shear strength (IFSS) compared to the baseline. The increase in the IFSS was proportional to CNT film thickness. Failure analysis of the microdroplet specimens indicated higher IFSS was related to fracture morphologies with higher levels of surface roughness. EPD enables the thickness of the CNT coating to be adjusted, facilitating control of fiber/matrix interfacial resistivity. The electrical sensitivity provides the opportunity to fabricate a new class of sizing with tailored interfacial properties and the ability to detect damage initiation.

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“…However, the brittle nature of epoxy excludes it from many applications. Brittleness can be reduced substantially by the incorporation of a second phase to the matrix . A wide range of materials like rubber, hyperbranched polymers, core–shell particles, nanomaterials, and block copolymers are being used to toughen the matrix .…”

Section: Introductionmentioning

confidence: 99%

Graphene Oxide as a Prospective Graft in Polyethylene Glycol for Enhancing the Toughness of Epoxy Nanocomposites

Jayan

Saritha

Deeraj

et al. 2020

Polymer Engineering & Sci

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Polyethylene glycol (PEG) was successfully grafted onto the surface of graphene oxide (GO) by the “grafting to” technique. PEG, GO as well as the PEG grafted GO (GO‐g‐PEG) was successfully incorporated into an epoxy matrix and subsequently cured using diethylenetoluenediamine (DETDA) to make epoxy nanocomposites. Mechanical, thermal, and rheological properties of the epoxy nanocomposites were studied to check the effectiveness of these fillers in the epoxy matrix. An improvement of 255% and 334% at a very low filler loading of about 0.1 wt% was observed in the fracture toughness of GO and GO‐g‐PEG loaded systems versus the neat epoxy. Toughening mechanisms are also explained by analyzing SEM images of the fractured surface. Modeling of rheological properties was carried out by following time‐independent Newtonian model. The homogeneity of the epoxy filler systems are explained with the help of Cole–Cole plots. The thermal stability of the filler loaded epoxy composites was examined in detail by TGA. Improvements in mechanical properties reveal the potential benefit of the grafting process in epoxy toughening. POLYM. ENG. SCI., 60:773–781, 2020. © 2020 Society of Plastics Engineers

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Hierarchical composites with high-volume fractions of carbon nanotubes: Influence of plasma surface treatment and thermoplastic nanophase-modified epoxy

Cited by 20 publications

References 52 publications

A Review of the Polymer for Cryogenic Application: Methods, Mechanisms and Perspectives

A Review of the Polymer for Cryogenic Application: Methods, Mechanisms and Perspectives

Tailoring Interfacial Properties by Controlling Carbon Nanotube Coating Thickness on Glass Fibers Using Electrophoretic Deposition

Graphene Oxide as a Prospective Graft in Polyethylene Glycol for Enhancing the Toughness of Epoxy Nanocomposites

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