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US 12,042,954 B2Granted
B-staging of pre-preg using capacitively-coupled electromagnetic heating method
AssigneeThe Texas A&M University System
InventorsAniruddh Vashisth, Micah J. Green
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Abstract
A method of fabrication processing a pre-preg material includes applying electromagnetic heating to a composition including a fiber and a resin. The electromagnetic heating is conducted with at least one fringing field capacitor utilizing radio frequency (RF) alternating current (AC) and controlling cross-linking of the resin in the composition via the electromagnetic heating.
Claims18
A method of fabrication processing a pre-preg material, the method comprising:
- forming a pre-preg material by combining a fiber and a resin, wherein the resin comprises carbon nanotubes;
- partially curing the pre-preg material by applying electromagnetic heating to the pre-preg material, wherein the electromagnetic heating is conducted with at least one fringing field capacitor utilizing radio frequency (RF) alternating current (AC), the at least one fringing field capacitor comprising two parallel plate capacitors arranged such that the pre-preg material passes over the two parallel plate capacitors when the electromagnetic heating is applied;
- and
- controlling cross-linking of the resin in the extruded pre-preg material via the electromagnetic heating of the carbon nanotubes.
1 more element
A method of fabrication processing a pre-preg material, the method comprising:
- forming a pre-preg material by combining a fiber and a resin, wherein the resin comprises carbon nanotubes;
- partially curing the pre-preg material by applying electromagnetic heating to the pre-preg material, wherein the electromagnetic heating is conducted with at least one fringing field capacitor utilizing radio frequency (RF) alternating current (AC), the at least one fringing field capacitor comprising two parallel plate capacitors arranged such that the pre-preg material passes over the two parallel plate capacitors when the electromagnetic heating is applied, and wherein the electromagnetic heating induces volumetric heating of the pre-preg material;
- and
- controlling cross-linking of the resin in the pre-preg material via the electromagnetic heating.
1 more element
Dependencies are inferred from the claim text.