BIPOLYMER-BASED ELECTROMAGENTIC INTERFERENCE SHIELDING MATERIALS

摘要

An electromagnetic interference (EMI) shielded device which includes an object to be shielded and an EMI shielding material encompassing the object. The EMI shielding material is made up of, but not limited to a broadband biopolymer or polymer dissolved in organic solvents, and metal and carbon-based nano-powders or nanoparticles. The specific makeup of the shielding material and fabrication procedure of the shielding material is also included herein.

主权项

1. A method of making an EMI shielding material, the method comprising:
dissolving DNA in a first amount of de-ionized water for a first period of time to form a DNA solution; dissolving CTMA in a second amount de-ionized water for a second period of time to form a CTMA solution; making a DNA-CTMA complex by adding the DNA solution to the CTMA solution, thereby causing a DNA-CTMA precipitate to form; making a butanol based DNA-CTMA solution by dissolving the DNA-CTMA precipitate in butanol; and making the EMI shielding material by mixing metal nano-powders with the butanol based DNA-CTMA solution.