Functional composite wire based on carbon fiber reinforced nylon and electrothermal drive element made of functional composite wire

A composite wire and electrothermal drive technology, applied in the field of composite materials, can solve the problems that the functionality has not been widely developed and applied, and achieve the effect of easy maintenance and strong controllability

Active Publication Date: 2020-05-26
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, nylon is mainly used as a kind of plastic in tradition

Method used

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  • Functional composite wire based on carbon fiber reinforced nylon and electrothermal drive element made of functional composite wire
  • Functional composite wire based on carbon fiber reinforced nylon and electrothermal drive element made of functional composite wire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0016] At 230°C-280°C, it is extruded by an extruder, and 0.5mm thick nylon is wrapped on a 0.1mm diameter carbon fiber bundle, and the carbon fibers are exposed at both ends. The extruded material is rapidly cooled in water or other media to prevent crystallization. Rewind the material for use.

[0017] Then hang one or more ends of the material on the free end of the motor rotor, and add a counterweight of 0.1-3kg to the other end. The free end of the motor rotor faces the ground, and the counterweight can only move up and down, not rotating or moving. Run the motor to drive the material to twist, and with the gradual accumulation of stress, the material is twisted into a spring shape.

[0018] Then the material is heated at 60-200°C to fix the shape.

[0019] Electrothermal driving process: connect the carbon fiber exposed at both ends of the material to the power source, apply a DC voltage of 0.1-30V, and heat the carbon fiber as a heating wire to 60-180°C. When the "spring" i...

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PUM

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Abstract

The invention discloses a functional composite wire based on carbon fiber reinforced nylon, which is characterized in that a wire core of the composite wire is a carbon fiber bundle, and a wire sheathis nylon; the composite wire can be used as a material of a drive element, exposed carbon fibers at the two ends of the manufactured electrothermal drive element are connected with a power supply, and voltage is applied to heat the carbon fibers. When a ''spring'' is stretched, a recovered pulling force can be generated in an electrothermal drive environment to drive the mechanical arm or other components/objects to move. When the wire sheath needs to be maintained or repaired, the stress applied to the electrothermal drive element is unloaded, the voltage applied to the two ends of the carbon fiber bundle is changed, the heating temperature of the carbon fiber bundle is higher than the working temperature and maintained for a period of time; and at the moment, the wire sheath can be melted and repaired under the electrothermal action, and the self-repairing function is achieved.

Description

Technical field [0001] The invention relates to the technical field of composite materials, in particular to a functional composite wire material based on carbon fiber reinforced nylon and an electrothermal driving element made therefrom. Background technique [0002] The high functionality of functional materials often coexists with high cost. Existing functional materials cannot be taken from an industrial point of view. The high cost of preparation in the laboratory stage, the complicated preparation process, and the difficulty of repairing many materials after damage have severely restricted the application and development of such materials. Nylon (polyamide), as a low-cost and easy-to-process polymer material, has been widely used because of its good mechanical properties. At the same time, nylon, as a thermoplastic, has good plasticity. However, currently nylon is mainly used as a plastic in traditional fields, and its functionality has not been widely developed and applie...

Claims

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Application Information

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IPC IPC(8): C08L77/00C08K7/06C08J5/04
CPCC08J5/042C08J2377/00C08K7/06
Inventor 赵岳祝颖丹颜春张洪生
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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