Evaluating the effect of nano-particle additives in Kevlar® 29 impact resistant composites

Manero, Albert; Gibson, Jason; Freihofer, Gregory; Gou, Jihua; Raghavan, Seetha

doi:10.1016/j.compscitech.2015.05.007

Cited by 40 publications

(15 citation statements)

References 30 publications

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“…2 Furthermore, to avoid failures in the composite during a ballistic event, it is necessary that the high impact energy applied to it is absorbed within a short time frame. 10 For instance, some studies analyzed ballistic impact in thermoset polymer composites, 7,11-13 e.g. Omidvar et al 7 prepared epoxy/calcium carbonate/Kevlar (29/49 and 129) composites with epoxy resin.…”

Section: Introductionmentioning

confidence: 99%

Mechanical and ballistic analysis of aramid/vinyl ester composites

Pagnoncelli

Piroli

Romanzini

et al. 2017

Journal of Composite Materials

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This study focused on evaluating mechanical and dynamic-mechanical properties of polyaramid/vinyl ester composites, as a function of the fiber content. Furthermore, split Hopkinson pressure bar technique and V 50 Ballistic limit tests were performed. Composites were prepared by resin transfer molding (RTM) with different fiber content, samples being identified as AD4, AD5 and AD6 (with 4, 5 and 6 polyaramid layers, respectively). Initially, fiber, void and matrix contents were calculated and statistically analyzed, in different regions of the composites. Mechanical and dynamical mechanical properties of the composites were improved by using higher fiber content. For example, impact strength of AD6 composite was 35% higher than AD4. Moreover, increase in the fiber content promoted an increase in tenacity and stress of the composites, in the same strain rate. Velocity limit in AD6 sample was estimated in ballistics tests and it was concluded that the composite obtained could accomplish the level I requisites of ballistic protection with V 50 of 304 m.s À1 .

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Section: Introductionmentioning

confidence: 99%

Mechanical and ballistic analysis of aramid/vinyl ester composites

Pagnoncelli

Piroli

Romanzini

et al. 2017

Journal of Composite Materials

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“…Albert et.al. reported a 7.3–8% increase in impact resistance of MWCNT‐enriched epoxy/Kevlar laminate as compared to neat epoxy/Kevlar laminate . Laurenzi et al reported that the addition of functionalized MWCNT at 0.5 wt% in epoxy Kevlar‐29 laminates increases absorption energy by up to 56% as compared to neat epoxy Kevlar laminates .…”

Section: Introductionmentioning

confidence: 99%

Mechanical and viscoelastic study of functionalized MWCNTs/epoxy/Kevlar composites

et al. 2017

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Nanomaterials‐strengthened diglycidyl ether of bisphenol A (DGEBA) epoxy resin and aramid fiber composites were investigated for 0.16 wt% and 0.32 wt% of industrial and COOH‐functionalized multiwalled carbon nanotubes (MWCNTs). Epoxy/Kevlar fiber/MWCNT hybrid composites were prepared using a vacuum resin‐infusion molding method (VRIM) based on 0.68 aramid fiber mass fractions. The effects of MWCNTs on the viscoelastic, mechanical, and thermal properties of composites were investigated. The chemical structure of composites was studied using Fourier‐transform infrared spectroscopy. Samples with COOH‐functionalized nanotubes showed a strong impact on thermogravimetric analysis, in contrast to composites having the equivalent amount of industrial grade MWCNTs. The outcomes show that addition of MWCNTs to epoxy has a substantial influence on viscoelastic properties. The viscoelastic and thermal analyses show that storage modulus escalates with the addition of functionalized MWCNTs. Micrographs of MWCNTs‐enriched epoxy and Kevlar/epoxy samples revealed the uniform distribution of COOH‐functionalized MWCNTs in epoxy (as compared to industrial grade MWCNTs), resulting in increased interfacial strength between fiber/matrix. POLYM. COMPOS., 39:E2064–E2073, 2018. © 2017 Society of Plastics Engineers

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“…Manero II et al studied the effects of nanofiller additives when used in Kevlar 29 by creating composites by impregnating Kevlar 29 with dispersions of nanoparticle additives and milled carbon fiber in a thermoset resin system that was an unmodified liquid epoxy resin based on Bisphenol‐A. The nanoparticle additives used were CNTs and a 33% concentrate core shell rubber (CSR) toughening agent.…”

Section: Armormentioning

confidence: 99%

“…Lastly, while the previous sections discussing composite materials and their interfaces have largely focused wearable devices for civilian, controlled environments, there is a significant body of work focusing on improving composite material interfaces for national defense. These largely center on armor materials, and more specifically direct their efforts toward improving the synthetic fiber Kevlar . The most important factors when monitoring the performance of Kevlar include ballistic resistance, stab resistance, and other forms of energy absorption and dissipation.…”

Section: Introductionmentioning

confidence: 99%

Interfacial Phenomena of Advanced Composite Materials toward Wearable Platforms for Biological and Environmental Monitoring Sensors, Armor, and Soft Robotics

Horne

McLoughlin

Bury

et al. 2020

Adv Materials Inter

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With haptic and pressure sensor manufacturing in the US totaling $US 1.6 billion in annual revenue—with 2% annual projected growth from 2018 to 2023—and tactical and service clothing manufacturing in the US totaling $US 242.9 million in annual revenue, the potential of advanced wearables continues to grow. As many fields tend toward miniaturized technologies in the modern age, many recent developments have been made for wearable platforms. Within the broad area of wearable platforms, there are many specific applications to consider, such as motion sensing, biomarker detection, monitoring of environmental pollutants, haptic sensors, enhanced soft robotics, and improving the safeguarding capabilities of armor. For these applications, the interfacial phenomena occurring between the continuous and discrete phases within the composite material are responsible for the device's response and bulk properties. Understanding these phenomena at the composite interfaces of the system allows for finer tuning of morphological, electromechanical, and other bulk properties, as well as the optimization of the wearable's output—in terms of the applications targeted. Control over these advanced composite materials is paramount in personalized health‐care systems, advanced defense technologies, commercial wearables. Recent advances on composite interfaces for wearable platforms are discussed, along with trends and an outlook of the field.

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Evaluating the effect of nano-particle additives in Kevlar® 29 impact resistant composites

Abstract: openAccessArticle: Falsecover date: 2015-09-08pii: S0266-3538(15)00194-3Harvest Date: 2016-01-06 13:07:53issueName:Page Range: 41-41href scidir: http://www.sciencedirect.com/science/article/pii/S0266353815001943pubType

Cited by 40 publications

References 30 publications

Mechanical and ballistic analysis of aramid/vinyl ester composites

Mechanical and ballistic analysis of aramid/vinyl ester composites

Mechanical and viscoelastic study of functionalized MWCNTs/epoxy/Kevlar composites

Interfacial Phenomena of Advanced Composite Materials toward Wearable Platforms for Biological and Environmental Monitoring Sensors, Armor, and Soft Robotics

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