Process for nanostructuring carbon fibers embedded in FRPS based on the use of sulphur in combination with aromatic hydrocarbon groups and on the use of laser radiation
AssigneeAirbus Defence and Space GmbH
InventorsBenedikt Rauh, Maximilian Kolb
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Abstract
A process for the nanostructuring of fibers in fiber-composite plastics, where a sulfur-containing nanostructure is formed. Also, a plastics matrix with such nanostructured fibers is disclosed, and also a process for the repair of fibers in a fiber-composite plastic.
Claims7
A process for nanostructuring of a fiber-composite plastic, comprising:
- providing a fiber-composite plastic comprising fibers and a plastics matrix comprising at least one sulfur-containing polymer;
- and
- using pulsed radiation for repeated irradiation of the fiber-composite plastic,
- where accumulated energy input due to the radiation is in a range from above 1.2 to below 50 J/cm2, and where energy input due to radiation in a wavelength range of 1000 nm and above does not exceed 2 J/cm2 per pulse.
A process for nanostructuring of a fiber-composite plastic, comprising:
- providing a fiber-composite plastic comprising fibers and a plastics matrix;
- applying at least one sulfur-containing monomer to the plastics matrix;
- and
- using pulsed radiation for repeated irradiation of the at least one sulfur-containing monomer and of the fiber-composite plastic,
- where accumulated energy input due to the radiation is in a range from above 1.2 to below 50 J/cm2, and where energy input due to radiation in a wavelength range of 1000 nm and above does not exceed 2 J/cm2 per pulse.
A process for repair of at least one fiber in a fiber-composite plastic, where a plastics matrix comprises at least one sulfur-containing polymer, where pulsed radiation is used for repeated irradiation of the fiber-composite plastic at least in a region of the at least one fiber, where accumulated energy input due to the radiation is in a range from above 1.2 to below 50 J/cm2, and where energy input due to radiation in a wavelength range of 1000 nm and above does not exceed 2 J/cm2 per pulse,
- and/or
- where a sulfur-containing monomer is applied to the plastics matrix at least in a region of the at least one fiber and pulsed radiation is used for repeated irradiation of the fiber-composite plastic at least in a region of the at least one fiber, where accumulated energy input due to the radiation is in a range from above 1.2 to below 50 J/cm2, and where energy input due to radiation in a wavelength range of 1000 nm and above does not exceed 2 J/cm2 per pulse.
Dependencies are inferred from the claim text.