Silver polyhedron coated electrospun nylon 6 nano‐fibrous membrane with good infrared extinction, ultraviolet shielding and water vapor permeability

Zhao, Pingtang; Fan, Jintu

doi:10.1002/app.33472

Cited by 6 publications

(7 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It was proposed that if the AgNPs can be distributed on the surface of the nanofibers, the efficacy of the formulated material should be improved substantially. [48][49][50] Polyacrylonitrile (PAN) is a synthetic, semicrystalline organic polymer resin, with the linear formula (C 3 H 3 N) n . It is a versatile polymer used to produce a large variety of products including ultrafiltration membranes, hollow fibers for reverse osmosis, fibers for textiles, oxidized flame retardant fibers, and carbon fiber.…”

Section: Introductionmentioning

confidence: 99%

Polyacrylonitrile nanofibers coated with silver nanoparticles using a modified coaxial electrospinning process

Yu¹,

Zhou²,

Chatterton³

et al. 2012

IJN

View full text Add to dashboard Cite

Background:The objective of this investigation was to develop a new class of antibacterial material in the form of nanofibers coated with silver nanoparticles (AgNPs) using a modified coaxial electrospinning approach. Through manipulation of the distribution on the surface of nanofibers, the antibacterial effect of Ag can be improved substantially. Methods: Using polyacrylonitrile (PAN) as the filament-forming polymer matrix, an electrospinnable PAN solution was prepared as the core fluid. A silver nitrate (AgNO 3 ) solution was exploited as sheath fluid to carry out the modified coaxial electrospinning process under varied sheath-to-core flow rate ratios. Results: Scanning electron microscopy and transmission electron microscopy demonstrated that the sheath AgNO 3 solution can take a role in reducing the nanofibers' diameters significantly, a sheath-to-core flow rate ratio of 0.1 and 0.2 resulting in PAN nanofibers with diameters of 380 ± 110 nm and 230 ± 70 nm respectively. AgNPs are well distributed on the surface of PAN nanofibers. The antibacterial experiments demonstrated that these nanofibers show strong antimicrobial activities against Bacillus subtilis Wb800, and Escherichia coli dh5α. Conclusion: Coaxial electrospinning with AgNO 3 solution as sheath fluid not only facilitates the electrospinning process, providing nanofibers with reduced diameters, but also allows functionalization of the nanofibers through coating with functional ingredients, effectively ensuring that the active antibacterial component is on the surface of the material, which leads to enhanced activity. We report an example of the systematic design, preparation, and application of a novel type of antibacterial material coated with AgNPs via a modified coaxial electrospinning methodology.

show abstract

Section: Introductionmentioning

confidence: 99%

Polyacrylonitrile nanofibers coated with silver nanoparticles using a modified coaxial electrospinning process

Yu¹,

Zhou²,

Chatterton³

et al. 2012

IJN

View full text Add to dashboard Cite

show abstract

“…The polymer templates must be catalytically activated prior to the electoless plating to provide a surface that can interact with metal ions in solution causing their reduction on the surface and growth of the coating. SnCl 2 and PdCl 2 are most commonly used as activators for this purpose 11 12 13 . However, PdCl 2 is expensive and toxic.…”

Section: Resultsmentioning

confidence: 99%

Ultralight metal foams

Jiang

Zhao

et al. 2015

Sci Rep

View full text Add to dashboard Cite

Ultralight (<10 mg/cm3) cellular materials are desirable for thermal insulation; battery electrodes; catalyst supports; and acoustic, vibration, or shock energy damping. However, most of these ultralight materials, especially ultralight metal foams, are fabricated using either expensive materials or complicated procedures, which greatly limit their large-scale production and practical applications. Here we report a simple and versatile method to obtain ultralight monolithic metal foams. These materials are fabricated with a low-cost polymeric template and the method is based on the traditional silver mirror reaction and electroless plating. We have produced ultralight monolithic metal foams, such as silver, nickel, cobalt, and copper via this method. The resultant ultralight monolithic metal foams have remarkably low densities down to 7.4 mg/cm3 or 99.9% porosity. The metal foams have a long flat stress-train curve in compression tests and the densification strain εD of the Ni/Ag foam with a porosity of 99.8% can reach 82%. The plateau stress σpl was measured and found to be in agreement with the value predicted by the cellular solids theory.

show abstract

“…Phase-shifting substances • Undoable change in phase • Coated microcapsules can be washed away. 125,126 • Thermoregulating effects 126 6 Polymers with shape memory • Best shape memory at minimum temperatures for alloys.…”

Section: Textiles For Visible and Self-adaptive Infrared Dual Camouflagementioning

confidence: 99%

Fabrication of Multifunctional Tents Using Canvas Fabric

Alvi,

Maqsood,

Iftikhar

et al. 2024

ACS Omega

View full text Add to dashboard Cite

Herein, this study was compiled to investigate a suitable solution for the fabrication and development of the multifunctional defense tent from previously reported research. The military always needs to protect their soldiers and equipment from detection. The advancement of infrared detection technology emphasizes the significance of infrared camouflage materials, reducing thermal emissions for various applications. Objects emit infrared radiation detectable by devices, making military targets easily identifiable. Infrared camouflage mitigates detection by lowering an object's infrared radiation, achieved by methods such as reducing surface temperature, which is crucial in designing military tents with infrared (IR) camouflage, considering water repellency and antibacterial features. Water repellency, as well as antimicrobial properties, in army tents is also important as they have to survive in different situations. All these problems should be addressed with the required properties; therefore, the authors try to introduce a new method from which multifunctional tents can be produced through economical, multifunctional, and sustainable materials that have IR protection, water repellency, ultraviolet (UV) protection, air filtration and permeability, and antimicrobial properties. There is still no tent that performs multiple functions at a time, even those functions that do not correlate with each other such as water repellency, IR protection, antimicrobial, and air permeability. So, a multifunctional tent could be the solution to all these problems having all the properties discussed above. In this study based on the literature review, authors concluded a method for the required tent for canvas fabric coated with zinc sulfide (ZnS), graphene oxide (GO), and zinc oxide (ZnO), or these materials should be incorporated in fiber formation because fiber composition has more impact. These multifunctional tents will be very beneficial due to their multifunctions like weather resistance, durability, and long life. These would help the army in their missions by concealing their soldiers and equipment from detection by cameras and providing filtered air inside the tent in case of gases or explosions. The proposed method will help to fulfill the stated and implied needs of customers.

show abstract

Silver polyhedron coated electrospun nylon 6 nano‐fibrous membrane with good infrared extinction, ultraviolet shielding and water vapor permeability

Cited by 6 publications

References 24 publications

Polyacrylonitrile nanofibers coated with silver nanoparticles using a modified coaxial electrospinning process

Polyacrylonitrile nanofibers coated with silver nanoparticles using a modified coaxial electrospinning process

Ultralight metal foams

Fabrication of Multifunctional Tents Using Canvas Fabric

Contact Info

Product

Resources

About