Improved mechanical and electromagnetic interference shielding properties of epoxy composites through the introduction of oxyfluorinated multiwalled carbon nanotubes

Lee, Kyeong Min; Lee, Si-Eun; Lee, Young-Seak

doi:10.1016/j.jiec.2017.08.001

Cited by 18 publications

(5 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The relative enhancement in mechanical properties mainly depends on the shape, surface area, and the quality of the interface between matrix and carbon nanofillers. Their large surface-to-volume ratio leads to agglomeration, and their chemically inert nature leads to poor interfacial interactions [ 18 ]. Thus, different functionalization and dispersion methodologies correspond to different loadings optimizations and consequently, to different strengths, stiffness, and other enhanced properties.…”

Section: Introductionmentioning

confidence: 99%

Effect of Carbon Nanofibers on the Viscoelastic Response of Epoxy Resins

2023

View full text Add to dashboard Cite

Two epoxy resins with different viscosities were enhanced up to 1 wt.%, applying a simple method with carbon nanofibers (CNFs). These were characterized in terms of static bending stress, stress relaxation, and creep tests. In bending, the contents of 0.5 wt.% and 0.75 wt.% of CNFs on Ebalta and Sicomin epoxies, respectively, promote higher relative bending stress (above 11.5% for both) and elastic modulus (13.1% for Sicomin and 16.2% for Ebalta). This highest bending stress and modulus occurs for the lower viscosity resin (Ebalta) due to its interfacial strength and dispersibility of the fillers. Creep behaviour and stress relaxation for three stress levels (20, 50, and 80 MPa) show the benefits obtained with the addition of CNFs, which act as a network that contributes to the immobility of the polymer chains. A long-term experiment of up to 100 h was successfully applied to fit the Kohlrausch–Williams–Watts (KWW) and Findley models to stress relaxation and creep behaviour with very good accuracy.

show abstract

Section: Introductionmentioning

confidence: 99%

Effect of Carbon Nanofibers on the Viscoelastic Response of Epoxy Resins

2023

View full text Add to dashboard Cite

show abstract

“…The other tiny peaks were ignored in this research. Here, the F component came from the FAS, which is crucial for low surface energy [28,29]. The Au component came from the Au sputtering before the SEM test.…”

Section: Resultsmentioning

confidence: 99%

Fabrication of robust conductive and superhydrophobic coating based on carbon nanotubes

Wang

Feng

et al. 2020

Mater. Res. Express

View full text Add to dashboard Cite

This paper reported a simple approach to prepare robust conductive/superhydrophobic coating. The hierarchical structure was obtained through the addition of microscale filler (graphite powder and expanded graphite) and nanoscale filler (carbon nanotube). The self-similar structure was obtained through bonding the fillers using the epoxy matrix. Through the combination of the hierarchical and self-similar structures, the as-prepared superhydrophobic coating demonstrated excellent antiabrasion property, good conductivity, excellent self-cleaning performance in both oil and water environment, outstanding anticorrosive property, and superior thermal stability simultaneously. Moreover, this superhydrophobic coating was achieved by a simple casting method, which has the potential to be used in large scale production.

show abstract

“…The oxyfluorination reaction of the PFA-coated stainless-steel mesh was carried out using a batch-type device equipped with a nickel reactor. The detailed oxyfluorination procedure was presented in our previous work [ 41 , 42 , 43 , 44 , 45 ]. Before oxyfluorination, the reaction chamber was evacuated three times using a pressure-reducing pump and purged by nitrogen gas to remove the residual moisture.…”

Section: Methodsmentioning

confidence: 99%

Effect of Oxyfluorination of PFA-Coated Metal Mesh with Superhydrophobic Properties on the Filtration Performance of SiO2 Microparticles

Kim

Kwak

et al. 2023

Molecules

Self Cite

View full text Add to dashboard Cite

Recently, semiconductor wastewater treatment has received much attention due to the emergence of environmental issues. Acid-resistant coatings are essential for metal prefilters used in semiconductor wastewater treatment. Perfluoroalkoxy alkane is mainly used as an acid-resistant coating agent, since PFA has inherent superhydrophobicity, water permeability is lowered. To solve this problem, the surface of the PFA-coated metal mesh was treated via an oxyfluorination method in which an injected mixed gas of fluorine and oxygen reacted with the surface functional groups. Surface analysis, water contact angle measurement, and water permeability tests were performed on the surface-treated PFA-coated mesh. Consequently, the superhydrophobic surface was effectively converted to a hydrophobic surface as the PFA coating layer was surface-modified with C-O-OH functional groups via the oxyfluorination reaction. As a result of using simulation solutions that float silica particles of various sizes, the permeability and particle removal rate of the surface-modified PFA-coated stainless-steel mesh were improved compared to those before surface modification. Therefore, the oxyfluorination treatment used in this study was suitable for improving the filtration performance of SiO2 microparticles in the PFA-coated stainless-steel mesh.

show abstract

Improved mechanical and electromagnetic interference shielding properties of epoxy composites through the introduction of oxyfluorinated multiwalled carbon nanotubes

Cited by 18 publications

References 37 publications

Effect of Carbon Nanofibers on the Viscoelastic Response of Epoxy Resins

Effect of Carbon Nanofibers on the Viscoelastic Response of Epoxy Resins

Fabrication of robust conductive and superhydrophobic coating based on carbon nanotubes

Effect of Oxyfluorination of PFA-Coated Metal Mesh with Superhydrophobic Properties on the Filtration Performance of SiO2 Microparticles

Contact Info

Product

Resources

About