Patents by Inventor Qiu-Cen Zhang

Qiu-Cen Zhang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8247024
    Abstract: A method for manufacturing a carbon nanotube/polymer composite includes the steps of: (a) providing a carbon nanotube array formed on a substrate in a container; (b) providing a prepolymer of polymethyl methacrylate (PMMA); (c) putting the prepolymer into the container for a period of over 30 minutes to fill in clearances of the carbon nanotube array; and (d) polymerizing the prepolymer film at a temperature of about 50° C. to 60° C. for a period of about 1 hour to 4 hours and then heating the prepolymer film to about 90° C. to 100° C. to form a polymer film, the carbon nanotube array thereby being embedded within the polymer film.
    Type: Grant
    Filed: July 17, 2007
    Date of Patent: August 21, 2012
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Qiu-Cen Zhang, Peng-Cheng Song, Chang-Hong Liu, Shou-Shan Fan
  • Patent number: 7988896
    Abstract: A method of preparing a carbon nanotube/polymer composite material is provided. The method includes (a) providing a carbon nanotube-based film and a pre-polymer solution; (b) placing the carbon nanotube-based film at a bottom of a container, and pouring the pre-polymer solution in the container; and (c) polymerizing the pre-polymer solution and simultaneously integrating the pre-polymer solution with the carbon nanotube-based film. As such, a carbon nanotube/polymer composite material, including the polymer-impregnated nanotube layer and an upper polymer layer, is obtained. A multi-layer composite can be produced by essentially repeating this process, using the upper polymer layer as the base layer for the formation of the next layer set thereon.
    Type: Grant
    Filed: July 31, 2007
    Date of Patent: August 2, 2011
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Qiu-Cen Zhang, Peng-Cheng Song, Chang-Hong Liu, Shou-Shan Fan
  • Publication number: 20080160866
    Abstract: A method for manufacturing a carbon nanotube/polymer composite includes the steps of: (a) providing a carbon nanotube array formed on a substrate in a container; (b) providing a prepolymer of polymethyl methacrylate (PMMA); (c) putting the prepolymer into the container for a period of over 30 minutes to fill in clearances of the carbon nanotube array; and (d) polymerizing the prepolymer film at a temperature of about 50° C. to 60° C. for a period of about 1 hour to 4 hours and then heating the prepolymer film to about 90° C. to 100° C. to form a polymer film, the carbon nanotube array thereby being embedded within the polymer film.
    Type: Application
    Filed: July 17, 2007
    Publication date: July 3, 2008
    Applicants: TSINGHUA UNIVERSITY, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: QIU-CEN ZHANG, PENG-CHENG SONG, CHANG-HONG LIU, SHOU-SHAN FAN
  • Publication number: 20080145570
    Abstract: A method of preparing a carbon nanotube/polymer composite material is provided. The method includes (a) providing a carbon nanotube-based film and a pre-polymer solution; (b) placing the carbon nanotube-based film at a bottom of a container, and pouring the pre-polymer solution in the container; and (c) polymerizing the pre-polymer solution and simultaneously integrating the pre-polymer solution with the carbon nanotube-based film. As such, a carbon nanotube/polymer composite material, including the polymer-impregnated nanotube layer and an upper polymer layer, is obtained. A multi-layer composite can be produced by essentially repeating this process, using the upper polymer layer as the base layer for the formation of the next layer set thereon.
    Type: Application
    Filed: July 31, 2007
    Publication date: June 19, 2008
    Applicants: TSINGHUA UNIVERSITY, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Qiu- Cen Zhang, Peng-Cheng Song, Chang-Hong Liu, Shou-Shan Fan
  • Publication number: 20080063860
    Abstract: A carbon nanotube/polymer composite is described. The carbon nanotube/polymer composite includes at least one polymer material layer and at least one carbon nanotube/polymer composite layer. The carbon nanotube/polymer layer includes a polymer material and a plurality of carbon nanotubes embedded in the polymer material, wherein the carbon nanotube/polymer layer includes a top surface and a bottom surface opposite to the top surface, at least one of the top surface and bottom surface contacts with the adjacent polymer material layer, and the carbon nanotubes respectively contact at least one respective adjacent carbon nanotube to thereby yield a network of contacting carbon nanotubes.
    Type: Application
    Filed: July 31, 2007
    Publication date: March 13, 2008
    Applicants: TSINGHUA UNIVERSITY, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: PENG-CHENG SONG, QIU-CEN ZHANG, CHANG-HONG LIU, SHOU-SHAN FAN