Two-dimensional metal carbide, nitride, and carbonitride films and composites for emi shielding
AssigneesDrexel University, Korea Institute of Science and Technology
InventorsYury GOGOTSI, Babak ANASORI, Mohamed H. ALHABEB, Christine B. HATTER, Chong Min KOO, Soon Man HONG, Faisal SHAHZAD
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Abstract
The present disclosure is directed to materials which provide electromagnetic shielding and methods of providing such electromagnetic shielding. In particular, the present disclosure describes the use of two-dimensional transition metal carbide, nitride, and carbonitride materials for this purpose.
Claims31
A method for shielding an object from electromagnetic interference comprising superposing at least one surface of the object with either a contacting or non-contacting coating comprising a two-dimensional transitional metal carbide composition having electrically conductive surfaces.
The method of claim 21, wherein the organic polymer contains an aryl or heteroaryl moiety and/or one or more, preferably a plurality of, oxygen-containing functional groups, amine-containing functional groups and/or thiol-containing functional groups
A bonded composite composition coating comprising any one or more two-dimensional transition metal carbide and one or more polymers and copolymers comprising oxygen-containing functional groups (e.g., —OH and/or —COOH) and/or amine-containing functional groups and/or thiol-containing functional groups, wherein the oxygen-containing functional groups (—OH, —COO, and ═O) and/or amine-containing functional groups and/or thiol are bonded or are capable of bonding with the surface functionalities of the two-dimensional transition metal carbide materials, and wherein the polymers/copolymers and MXene material are present in a weight ratio range of from 2:98 to 5:95, from 5:95 to 10:90, from 10:90 to 20:80, from 20:80 to 30:70, from 30:70 to 40:60, from 40:60 to 50:50, from 50:50 to 60:40, from 60:40 to 70:30, from 70:30 to 80:20, from 80:20 to 90:10, from 90:10 to 95:5, from 95:5 to 98:2, or a range combining two or more of these ranges.
Dependencies are inferred from the claim text.