An impact-resistant and flame-retardant CNTs/STF/Kevlar composite with conductive property for safe wearable design

Liu, Bing; Liu, Quan; Pan, Yucheng; Zhou, Jianyu; Zhang, Junshuo; Liu, Shuai; Fan, Ziyang; Deng, Huaxia; Yuan, Hairong; Gong, Xinglong

doi:10.1016/j.compositesa.2023.107489

Cited by 17 publications

(3 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…developed a type of C-STF-based yarn using carbon nanotube CNTs, hollow silicone rubber tubes, polydimethylsiloxane (PDMS) layers, and STF, which is a multifunctional smart yarn with excellent energy dissipation properties, responding to a wide range of mechanical stimuli such as bending, compression, and tensile, and possessing excellent impact resistance and impact detection. Liu et al [30] used mesoporous silica (M-SiO 2 ) as the dispersed phase and ionic liquid as the solvent to prepare CNTs/STF/Kevlar smart materials with anti-impact, nonflammable, and sensing performance. Mesoporous silica is nanostructured with low thermal conductivity, and ionic liquids are green solvents with noncombustibility, impregnating fabrics in shear thickening solutions prepared from M-SiO 2 .…”

Section: Shear Thickening Mechanismmentioning

confidence: 99%

Research Progress of Shear Thickening Electrolyte Based on Liquid–Solid Conversion Mechanism

et al. 2023

Self Cite

View full text Add to dashboard Cite

As an essential component of the lithium-ion battery system, electrolyte plays a crucial role in ion transport between the electrodes. In the event of thermal runaway, commercial organic electrolytes are prone to internal disturbances and fires; hence, research on safe electrolytes has gradually become a hot topic during recent years. Shear thickening electrolyte, as a new type of smart electrolyte, can exhibit a liquid state in the absence of external force and rapidly converts to a quasi-solid state once the battery is subjected to drastic impact loading. In this paper, the recent progress of shear thickening electrolytes with liquid–solid switching performance is presented, including its working principles, synthesis and preparation procedure, and battery performance. Additionally, the perspective and challenges for practical application are discussed.

show abstract

Section: Shear Thickening Mechanismmentioning

confidence: 99%

Research Progress of Shear Thickening Electrolyte Based on Liquid–Solid Conversion Mechanism

et al. 2023

Self Cite

View full text Add to dashboard Cite

show abstract

“…In recent years, this challenge has been addressed by incorporating inorganic/organic hybrid coatings in conjunction with flexible high-performance fabrics . These coatings encompass hydrogels, , shear hardening gels (SSG), – TPU, shear thickening fluid (STF) coatings, , inorganic powder (IP) reinforced polyurethane coatings (TPU/IP), – and inorganic powder reinforced epoxy resin (epoxy resin/IP) coatings, among others. On the one hand, the presence of the coating significantly enhances the friction between the yarns and dissipates a majority of the energy upon impact.…”

Section: Introductionmentioning

confidence: 99%

Silica Nanoparticle/TPU Coating Imparts Aramid with Puncture Resistance and Anti-corrosion for Personal Protection

Li,

Chu,

et al. 2023

ACS Appl. Nano Mater.

View full text Add to dashboard Cite

In extreme environments, the simultaneous requirements of puncture resistance, acid and alkali resistance, and chemical corrosion resistance are crucial for the design of safety protection materials. To address these requirements, this study employed a "scratch coating" technique, combining modified silica nanoparticles (nano F−SiO 2 ) and thermoplastic polyurethane elastomers (TPU) with aramid fabrics. This approach ensured that the composites were both soft and puncture resistant. Additionally, a simple and cost-effective spraying method was utilized to create a multifunctional coating comprising nanosilica, micron-polytetrafluoroethylene (PTFE), and fluorinated alkyl silane. Furthermore, the study investigated the effect of different lamination angles of the fabric on puncture resistance. The results demonstrated that the soft composite exhibited outstanding puncture resistance, resistance to strong acids and bases, and super-double sparsity. Notably, the maximum puncture resistance reached 515.50 N, which was 33.02 times higher than that of the pure fabric (15.61 N). Similarly, the maximum knife puncture resistance reached 247.42 N, representing a 10.77-fold increase compared to that of the pure aramid fabric (22.97 N). Notably, the obtained coating demonstrated outstanding superhydrophobicity with a water contact angle of 163.8°and a sliding angle of 3.2°. It exhibited remarkable durability when immersed in acidic or basic solutions for 120 h and exposed to outdoor conditions for more than 30 days. Importantly, the micronano coating displayed exceptional stability even when subjected to highly corrosive chemicals such as concentrated sulfuric acid (98%) and sodium hydroxide (40%) for up to 12 h. In summary, this study introduces a novel approach and method for designing flexible puncture-resistant composites with multifunctional properties. It offers valuable insights and contributes to advancements in the field of protective materials..

show abstract

“…Prior studies have extensively explored the integration of synthetic materials, such as Kevlar [16][17][18][19], Dyneema [20,21], Twaron [22,23], shear thickening fluid (STF) [24], polymeric composites [25,26], UHMWPE [27,28], metallic [29,30], and ceramics [31,32], into the composition of ballistic vests owing to their distinguished tensile strength and exceptional ballistic resilience. These materials have, over time, established themselves as the prevailing benchmarks in the realm of personal protection [33].…”

Section: Introductionmentioning

confidence: 99%

Sustainable innovation in ballistic vest design: Exploration of polyurethane-coated hemp fabrics and reinforced sandwich epoxy composites against 9 mm and .40 S&W bullets

WANTANG,

PIPATHATTAKUL,

WIWATWONGWANA

2023

J Met Mater Miner

View full text Add to dashboard Cite

This research aimed to evaluate the bulletproof capabilities of hemp fabrics and optimize the design factors for effective ballistic vests. Three main aspects were investigated: enhancing toughness with polyurethane-coated hemp fabrics, determining optimal placement of fabric-reinforced hemp epoxy composites in various configurations, and identifying the optimal number of fabric layers for performance against 9 mm and .40 S&W bullets. Penetration depth was measured in ballistic gelatin to analyze the results. The study showed strong statistical correlations between factor variables and penetration depth shifts. The most effective strategies included polyurethane-coated hemp on all layers and increased layering. The ammunition of 9 mm bullets exhibited the least penetration depth when tested against the sandwich-reinforced configuration. In contrast, the larger .40 S&W bullets demonstrated that the frontal arrangement yielded the minimum penetration depth. Notably, 9 mm bullets penetrated 1.25 times deeper than .40 S&W bullets. These findings emphasize hemp fabric's potential for reliable ballistic vests. Utilizing polyurethane-coated hemp fabric in epoxy composites within a sandwich reinforcement of at least 212 layers is recommended to stop 9 mm bullets effectively. The research contributes valuable insights to sustainable ballistic vest development, utilizing natural materials with exceptional bullet protection capabilities.

show abstract

An impact-resistant and flame-retardant CNTs/STF/Kevlar composite with conductive property for safe wearable design

Cited by 17 publications

References 40 publications

Research Progress of Shear Thickening Electrolyte Based on Liquid–Solid Conversion Mechanism

Research Progress of Shear Thickening Electrolyte Based on Liquid–Solid Conversion Mechanism

Silica Nanoparticle/TPU Coating Imparts Aramid with Puncture Resistance and Anti-corrosion for Personal Protection

Sustainable innovation in ballistic vest design: Exploration of polyurethane-coated hemp fabrics and reinforced sandwich epoxy composites against 9 mm and .40 S&W bullets

Contact Info

Product

Resources

About