CNT-infused EMI shielding composite and coating
First Claim
1. A composite for use in electromagnetic interference (EMI) shielding applications comprising:
- a carbon nanotube (CNT)-infused fiber material disposed in at least a portion of a matrix material, said composite being capable of absorbing electromagnetic (EM) radiation, reflecting EM radiation, or combinations thereof in a frequency range from between about 0.01 MHz to about 18 GHz, wherein the EM shielding capacity of the composite, measured as electromagnetic interference (EMI) shielding effectiveness (SE), is in a range from between about 40 decibels (dB) to about 130 dB, wherein CNTs of the CNT-infused fiber material display a CNT morphology resulting from synthesis of the CNTs directly on the fiber material, the CNT morphology comprising entangled, branched and shared-wall CNTs, and the CNTs extending outwardly from a fiber material comprising the CNT-infused fiber material;
wherein the CNT-infused fiber material has a controlled orientation within the composite.
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Accused Products
Abstract
A composite for use in electromagnetic interference (EMI) shielding applications includes a carbon nanotube (CNT)-infused fiber material disposed in at least a portion of a matrix material. The composite is capable of absorbing or reflecting EM radiation, or combinations thereof in a frequency range from between about 0.01 MHz to about 18 GHz. The electromagnetic interference (EMI) shielding effectiveness (SE), is in a range from between about 40 decibels (dB) to about 130 dB. A method of manufacturing the composite includes disposing a CNT-infused fiber material in a portion of a matrix material with a controlled orientation of the CNT-infused fiber material within the matrix material, and curing the matrix material. A panel includes the composite and is adaptable to interface with a device for use in EMI shielding applications. The panel is further equipped with an electrical ground.
410 Citations
13 Claims
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1. A composite for use in electromagnetic interference (EMI) shielding applications comprising:
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a carbon nanotube (CNT)-infused fiber material disposed in at least a portion of a matrix material, said composite being capable of absorbing electromagnetic (EM) radiation, reflecting EM radiation, or combinations thereof in a frequency range from between about 0.01 MHz to about 18 GHz, wherein the EM shielding capacity of the composite, measured as electromagnetic interference (EMI) shielding effectiveness (SE), is in a range from between about 40 decibels (dB) to about 130 dB, wherein CNTs of the CNT-infused fiber material display a CNT morphology resulting from synthesis of the CNTs directly on the fiber material, the CNT morphology comprising entangled, branched and shared-wall CNTs, and the CNTs extending outwardly from a fiber material comprising the CNT-infused fiber material; wherein the CNT-infused fiber material has a controlled orientation within the composite. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A panel comprising a composite, said composite comprising:
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a carbon nanotube (CNT)-infused fiber material disposed in at least a portion of a matrix material, said composite being capable of absorbing electromagnetic (EM) radiation, reflecting EM radiation, or combinations thereof in a frequency range from between about 0.01 MHz to about 18 GHz, wherein the EM shielding capacity of the composite, measured as electromagnetic interference (EMI) shielding effectiveness (SE), is in a range from between about 40 decibels (dB) to about 130 dB, said panel being adaptable to interface with a device for use in EMI shielding applications, wherein said panel is further equipped with an electrical ground, wherein CNTs of the CNT-infused fiber material display a CNT morphology resulting from synthesis of the CNTs directly on the fiber material, the CNT morphology comprising entangled, branched and shared-wall CNTs, and the CNTs extending outwardly from a fiber material comprising the CNT-infused fiber material; wherein the CNT-infused fiber material has a controlled orientation within the composite. - View Dependent Claims (13)
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Specification