Polyaniline/c-MWNT nanocomposite

• US 8,119,722 B2
• Filed: 07/21/2011
• Issued: 02/21/2012
• Est. Priority Date: 04/07/2009
• Status: Active Grant

• Current Assignee: National Chung-Shan Institute of Science and Technology
• Original Assignee: Chung-Shan Institute of Science & Technology Armaments Bureau MND (Government of The Republic of China)
• Inventors: Yang, Cheng-Chien, Yeh, Jui-Ming, Gu, Wang-Tsai, Peng, Yuen-Hsin, Huang, Kuan-Yeh
• Primary Examiner(s): EGWIM, KELECHI CHIDI
• Application Number:
  US13/188,375
• Publication Number:
  US 20110278505A1
• Time in Patent Office: 215 Days
• Field of Search: 524/496, 524/612, 524/847
• US Class Current: 524/496
• CPC Class Codes: B82Y 30/00 Nanotechnology for materials or surface science, e.g. nanocomposites
• CPC Class Codes: B82Y 40/00 Manufacture or treatment of nanostructures
• CPC Class Codes: C08G 73/0266 Polyanilines or derivatives thereof
• CPC Class Codes: C08J 2379/02 Polyamines
• CPC Class Codes: C08J 3/20 Compounding polymers with additives, e.g. colouring
• CPC Class Codes: C08K 3/04 Carbon
• CPC Class Codes: C08K 3/041 Carbon nanotubes
• CPC Class Codes: C08K 7/24 inorganic
• CPC Class Codes: C08L 79/02 Polyamines
• CPC Class Codes: Y10S 977/742 Carbon nanotubes, CNTs
• CPC Class Codes: Y10S 977/745 having a modified surface
• CPC Class Codes: Y10S 977/746 Modified with biological, organic, or hydrocarbon material
• CPC Class Codes: Y10S 977/842 for carbon nanotubes or fullerenes

Abstract

The invention discloses a polyaniline/c-MWNT produced by carboxylating at least one carbon nanotube to form at least one carboxylic carbon nanotube; mixing the at least one carboxylic carbon nanotube with a solvent to form a first carbon nanotube solution; mixing at least one aniline monomer with the first carbon nanotube solution to form a second carbon nanotube solution; mixing an ammonium persulfate solution with the second carbon nanotube solution to form a third carbon nanotube solution; air-extracting and filtering the third carbon nanotube solution to obtain the polyaniline/c-MWNT nanocomposite; cleaning and baking the polyaniline/c-MWNT nanocomposite.

Claims

1. A polymer composite, obtained, by cleaning and baking, after air-extracting and filtering a third carbon nanotube solution, comprising an ammonium persulfate solution mixed with a second carbon nanotube solution, wherein the second carbon nanotube solution includes at least one aniline monomer mixed with a first carbon nanotube solution, and

the first carbon nanotube solution includes at least one carbon nanotube mixed with a solvent to form a carboxylic carbon nanotube.

2. The polymer composite of claim 1, wherein the carboxylic carbon nanotubes is obtained by mixing at least one carbon nanotubes with a sulfuric acid/nitric acid solution to form a mixed solution, ultrasonic vibrating the mixed solution, and filtering the mixed solution to obtain the at least one carboxylic carbon nanotube.

3. The polymer composite of claim 2, wherein the ratio of the sulfuric acid to the nitric acid of the sulfuric acid/nitric acid solution is 3:

1.

4. The polymer composite of claim 2, wherein the mixed solution is ultrasonic vibrated under the temperature range of 20±

5°

C.

5. The polymer composite of claim 1, wherein the composition of the solvent is hydrochloric acid, namely, hydrogen chloride.

6. The polymer composite of claim 1, wherein the ammonium persulfate solution is a mixture of ammonium persulfate and a first solvent.

7. The polymer composite of claim 6, wherein the composition of the first solvent is substantially the same as that of the solvent.

8. The polymer composite of claim 1, wherein the polyaniline is an emeraldine base form of polyaniline.