Regeneration treatment method and device for carbon fiber reinforced composite

Abstract

The invention provides a regeneration treatment method and device for a carbon fiber reinforced composite. In the device, a superheated steam generator is used for heating water into saturated steam and then heating the saturated steam into superheated steam at 200-1000 DEG C. The oxygen content of the generated superheated steam is smaller than 0.3%, the superheated steam generator is at normal pressure or micropressure (smaller than 0.2 mpa), and thus the system is safe and reliable; besides, the temperature is adjustable and controllable, oxygen-free, low-pressure and temperature-controllable heating of the carbon fiber reinforced composite can be achieved by connecting the superheated steam generator to a treatment furnace through a pipeline, and thus resin on carbon fibers can be removed to regenerate carbon fiber precursors without damaging the performance of carbon fiber yarn or woven cloth in the carbon fiber reinforced composite product. By means of the regeneration treatment method and device, zero emission and zero pollution are achieved, extraction and cyclic utilization of energy in the carbon fiber reinforced composite are achieved, and the carbon fiber regeneration cost is greatly reduced.

Description

technical field [0001] The invention relates to a carbon fiber reinforced composite material regeneration treatment method and device. Specifically, the resin in the carbon fiber reinforced composite material is vaporized by using oxygen-free, micro-pressure, temperature-controllable and adjustable superheated steam, and the whole system is pollution-free and non-toxic. Emissions, energy recycling to achieve low-cost operation. Background technique [0002] The strength of carbon fiber is 9-12 times that of steel, and the specific gravity is 1 / 4 of that of steel. Carbon fiber reinforced composite materials are light in weight and high in strength. They are known as the king of materials and are used more and more in various fields such as aviation and transportation. According to information, the global annual carbon fiber products are more than 100,000 tons, and the speed of use is accelerating. In China, carbon fiber reinforced composite materials should be gradually prom...

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Problems solved by technology

[0003] But so far, there is no good way to recycle carbon fiber product waste. Globally, only a few companies such as Japan and Germany have carbon fiber waste recycling industry. The method is to directly burn carbon fiber reinforced composite materials. Or heating and vaporizing in a nitrogen atmosphere to recover the carbon fiber precursors. The above two methods will greatly reduce the strength of the carbon fiber precursors, the energy cannot be recycled, the recycling cost is high, and it is not friendly to the environment.

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