Electrospinning solution Composition for Preparing Silver Nanofiber

Patent metadata

Field	Value
Publication number	US-2016068654-A1
Application number	US-201414787289-A
Country	US
Kind code	A1
Filing date	Mar 21, 2014
Priority date	Apr 29, 2013
Publication date	Mar 10, 2016
Grant date	—

Abstract

The present invention relates to an electrospinning solution composition for fabricating a silver nanofiber, and more particularly to an electrospinning solution composition for fabricating a silver nanofiber through a spinning process, the electrospinning solution including a silver precursor, a reducing agent, a viscosity modifier, and a solvent wherein the viscosity modifier includes one selected from the group consisting of dextran, alginate, chitosan, guar gum, starch, carboxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl methylcellulose, xanthan gum, a carboxyvinyl polymer, pectin, sodium alginate, and a combination thereof.
According to the present invention, a viscosity suitable for spinning is maintained by using a viscosity modifier to be able to improve quality of a silver nanofiber.

First claim

1 . An electrospinning solution composition for fabricating a silver nanofiber, the electrospinning solution composition comprising: a silver precursor, a reducing agent, a viscosity modifier, and a solvent for fabricating a nanofiber through a spinning process, wherein the viscosity modifier is one selected from the group consisting of dextran, alginate, chitosan, guar gum, starch, carboxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl methylcellulose, xanthan gum, a carboxyvinyl polymer, pectin, sodium alginate, and a combination thereof.

2 . The electrospinning solution composition of claim 1 , wherein the viscosity modifier is contained in an amount of 1.0 to 10 wt % with respect to the total weight of the composition.

3 . The electrospinning solution composition of claim 1 , wherein the silver precursor comprises one selected from the group consisting of silver nitrate (AgNO 3 ), silver nitrate (AgNO 2 ), silver acetate (CH 3 COOAg), silver lactate (CH 3 CH(OH)COOAg), a citric acid silver hydrate (AgO2CCH 2 C(OH)(CO 2 Ag)CH 2 CO 2 Ag.xH 2 O), and a combination thereof.

4 . The electrospinning solution composition of claim 1 , wherein the reducing agent comprises one selected from the group consisting of hydrazine, potassium borohydride, sodium borohydride, potassium hydroquinonemonosulfonate, hydroxy amine, sodium pyrophosphate, sorbitol, pyrocatechol, catechol, and a combination thereof.

5 . The electrospinning solution composition of claim 1 , wherein the solvent comprises one selected from the group consisting of water, ethanol, isopropanol, N,N-dimethylformamide (DMF), dimethylacetamide (DMAc), tetrahydrofuran (THF), dimethylsulfoxide (DMSO), gamma butyrolactone, N-methylpyrrolidone, chloroform, toluene, acetone, and a combination thereof.

6 . The electrospinning solution composition of claim 1 , wherein the electrospinning solution composition has a concentration ranging from 0.1 to 40 wt %.

7 . The electrospinning solution composition of claim 1 , wherein the electrospinning solution composition has a viscosity ranging from 20 to 200,000 cP.

8 . The electrospinning solution composition of claim 1 , wherein the electrospinning solution composition further comprises one selected from the group consisting of a capping agent, a dispersant, a surfactant, an antioxidant, and a combination thereof.

9 . The electrospinning solution composition of claim 8 , wherein the capping agent comprises one selected from the group consisting of polyvinylpyrrolidone (PVP), polyethylene oxide (PEO), polyvinyl alcohol (PVA), polyvinylidene fluoride (PVDF), polyvinyl acetate (PVAc) polyacrylonitrile (PAN), polyamide (PA), polyacrylamide (PAA), polyurethane (PU), poly (etherimide) (PEI), polybenzimidazole (PBI), cetyltrimethylammonium bromide (CTAB), cetyltrimethylammonium chloride (CTAC), and a combination thereof.

Assignees

• Korea Ind Tech Inst

Inventors

• Huh Hoon
• Kim Woo Sik
• Choi Suk Hoon

Classifications

• C08L39/06

  Homopolymers or copolymers of N-vinyl-pyrrolidones · CPC title

• C08K3/28 Primary

  Nitrogen-containing compounds · CPC title

• C08L33/02

  Homopolymers or copolymers of acids; Metal or ammonium salts thereof · CPC title

• C08L5/02

  Dextran; Derivatives thereof · CPC title

• D01F9/08 Primary

  of inorganic material (working or processing of metal wire B21F; from softened glass, minerals or slags C03B37/00) · CPC title