Non-aqueous colloidal processing route for fabrication of highly dispersed aramid nanofibers attached with Ag nanoparticles and their stability in epoxy matrixes

Iijima, Motoyuki; Kamiya, Hidehiro

doi:10.1016/j.colsurfa.2015.05.007

Cited by 10 publications

(1 citation statement)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Here we describe the possibility to prepare a free standing flexible composite material with these parameters made from prototypical metal NPs and aramid nanofibers (ANFs) . The latter represent a versatile new building block among nanomaterials and were chosen because ANFs inherits from the parent Kevlar nanofibers high chemical/thermal stability and exceptional mechanical performance (stiffness: 109 GPa and strength: 3.6 GPa), high nanoscale porosity of ANF matrixes, and the abundance of surface amide groups on ANFs enables further functionalization of the nanofibers and incorporation of other components onto and between aramid chains . Also importantly production of ANFs is easy to scale.…”

Section: Introductionmentioning

confidence: 99%

High Strength Conductive Composites with Plasmonic Nanoparticles Aligned on Aramid Nanofibers

Lyu

Wang

Liu

et al. 2016

Adv Funct Materials

124

View full text Add to dashboard Cite

Rapidly evolving fields of biomedical, energy, and (opto)electronic devices bring forward the need for deformable conductors with constantly rising benchmarks for mechanical properties and electronic conductivity. The search for conductors with improved strength and strain have inspired the multiple studies of nanocomposites and amorphous metals. However, finding conductors that defy the boundaries of classical materials and exhibit simultaneously high strength, toughness, and fast charge transport while enabling their scalable production, remains a difficult materials engineering challenge. Here, composites made from aramid nanofibers (ANFs) and gold nanoparticles (Au NPs) that offer a new toolset for engineering high strength flexible conductors are described. ANFs are derived from Kevlar macrofibers and retain their strong mechanical properties and temperature resilience. Au NPs are infiltrated into a porous, free-standing aramid matrix, becoming aligned on ANFs, which reduces the charge percolation threshold and facilitates charge transport. Further thermal annealing at 300 °C results in the Au-ANF composites with an electrical conductivity of 1.25 × 10 4 S cm −1 combined with a tensile strength of 96 MPa, a Young's modulus of 5.29 GPa, and a toughness of 1.3 MJ m −3 . These para meters exceed those of most of the composite materials, and are comparable to those of amorphous metals but have no volume limitations. The plasmonic optical frequencies characteristic for constituent NPs are present in the composites with ANFs enabling plasmon-based optoelectronic applications.

show abstract

Section: Introductionmentioning

confidence: 99%

High Strength Conductive Composites with Plasmonic Nanoparticles Aligned on Aramid Nanofibers

Lyu

Wang

Liu

et al. 2016

Adv Funct Materials

124

View full text Add to dashboard Cite

show abstract

Understanding the Colloidal Stability of Nanoparticle–Ligand Complexes: Design, Synthesis, and Structure–Function Relationship Studies of Amphiphilic Small‐Molecule Ligands

Okada

Ishikawa

Maeta

et al. 2017

Chemistry A European J

View full text Add to dashboard Cite

For effective application of nanoparticles, their amenability to in-solution processing must be addressed, and stable, homogeneous solvent conditions are required. Although organic ligands have been used as surface-modifying reagents for nanoparticles to increase their colloidal stability and homogeneity in solution, the structure-function relationships of nanoparticle-ligand complexes remain elusive and controversial. Herein, a series of novel amphiphilic small-molecule ligands were designed, synthesized, and applied as surface-modifying reagents for aqueous, transparent TiO and ZrO nanoparticles. The colloidal stability of the resulting nanoparticle-ligand complexes was found to depend not only on the chain length, but also on the relative balance between hydrophobicity and hydrophilicity. The structure of the ligands can be fine-tuned to achieve "flexible colloidal stability", thus significantly increasing complex stability in a variety of organic solvents.

show abstract

Fabrication of Curcumin Grafted Aramid Nanofibers-Based Aerogel Films: Dyes Removal from Contaminated Effluents with High Adsorption Capacity and Antimicrobial Characteristics

Wasim,

Shi,

Liu

et al. 2024

Fibers Polym

View full text Add to dashboard Cite

Non-aqueous colloidal processing route for fabrication of highly dispersed aramid nanofibers attached with Ag nanoparticles and their stability in epoxy matrixes

Cited by 10 publications

References 34 publications

High Strength Conductive Composites with Plasmonic Nanoparticles Aligned on Aramid Nanofibers

High Strength Conductive Composites with Plasmonic Nanoparticles Aligned on Aramid Nanofibers

Understanding the Colloidal Stability of Nanoparticle–Ligand Complexes: Design, Synthesis, and Structure–Function Relationship Studies of Amphiphilic Small‐Molecule Ligands

Fabrication of Curcumin Grafted Aramid Nanofibers-Based Aerogel Films: Dyes Removal from Contaminated Effluents with High Adsorption Capacity and Antimicrobial Characteristics

Contact Info

Product

Resources

About