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Carbon fiber composite material recovery method

A composite material and recycling method technology, applied in the field of carbon fiber composite material recycling, can solve the problems of waste of land resources, incomplete cleaning, and pollution of the surrounding environment.

Inactive Publication Date: 2015-12-30
CHANGZHOU HONGFA ZONGHENG ADVANCED MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] In the prior art, waste carbon fiber composite materials, such as waste generated after use or waste cut during the production process, are mostly disposed of by burning or discarding, resulting in a waste of resources, and by burning, The carbon fiber in the composite material is still left as a residue, and the cleaning is not thorough, and it is disposed of by discarding, which causes a waste of land resources and also pollutes the surrounding environment

Method used

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  • Carbon fiber composite material recovery method

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Experimental program
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Effect test

Embodiment 1

[0015] A carbon fiber composite material recycling method, comprising the following steps:

[0016] Step 1, put the waste carbon fiber composite material into the stirring and cleaning equipment for cleaning, and the cleaning temperature is 20 ℃,

[0017] In step 2, the cleaned carbon fiber composite material is dried by using a hot air drying device, and the carbon fiber composite material is pulverized into fragments with a length of 3 cm by a pulverizing device,

[0018] Step 3: Spread the fragments on a tray, place them in a microwave oven, and irradiate and heat the carbon fiber composite material fragments in the tray. The microwave power of the microwave oven is 3KW, and the microwave oven is filled with an inert gas. Degradation reaction occurs in the internal protection,

[0019] Step 4: After the degradation of the carbon fiber composite material is completed, a solid carbon fiber recycled material is obtained.

[0020] Among them, the degradation reaction time of ...

Embodiment 2

[0022] A carbon fiber composite material recycling method, comprising the following steps:

[0023] Step 1, put the waste carbon fiber composite material into the stirring and cleaning equipment for cleaning, and the cleaning temperature is 35 ° C,

[0024] In step 2, the cleaned carbon fiber composite material is dried by using a hot air drying device, and the carbon fiber composite material is pulverized into fragments with a length of 6 cm by a pulverizing device,

[0025] Step 3: Spread the fragments on the tray, place them in a microwave oven, and irradiate and heat the carbon fiber composite material fragments in the tray. The microwave power of the microwave oven is 6KW, and the microwave oven is filled with inert gas. Degradation reaction occurs in the internal protection,

[0026] Step 4: After the degradation of the carbon fiber composite material is completed, a solid carbon fiber recycled material is obtained.

[0027] Among them, the degradation reaction time of...

Embodiment 3

[0029] A carbon fiber composite material recycling method, comprising the following steps:

[0030] Step 1, put the waste carbon fiber composite material into the stirring and cleaning equipment for cleaning, and the cleaning temperature is 50 ℃,

[0031] In step 2, the cleaned carbon fiber composite material is dried by using a hot air drying device, and the carbon fiber composite material is pulverized into fragments with a length of 10 cm by a pulverizing device,

[0032] Step 3: Spread the fragments on a tray, place them in a microwave oven, and irradiate and heat the carbon fiber composite material fragments in the tray. The microwave power of the microwave oven is 10KW, and the microwave oven is filled with an inert gas. Degradation reaction occurs in the internal protection,

[0033] Step 4: After the degradation of the carbon fiber composite material is completed, a solid carbon fiber recycled material is obtained.

[0034] Among them, the degradation reaction time o...

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Abstract

The invention relates to a carbon fiber composite material recovery method. The method comprises the following steps: putting a waste carbon fiber composite material in stirring cleaning equipment to be cleaned, spreading fragments on a tray, putting the tray in a microwave oven, carrying out radiation heating treatment on the carbon fiber composite material fragments in the tray, filling an inert gas in the microwave oven to protect the carbon fiber composite material when the carbon fiber composite material undergoes degradation reaction in the microwave oven and obtaining a solid recovered carbon fiber material after degradation of the carbon fiber composite material is completed. The method has the beneficial effects that the impurities on the surface of the carbon fiber composite material can be removed and the recovery rate of the carbon fibers in the carbon fiber composite material can be increased by cleaning the carbon fiber composite material; meanwhile, the degradation reaction efficiency of the carbon fiber composite material in the microwave oven is further improved by cutting the carbon fiber composite material into the fragments; and the recovery rate of the carbon fibers can be greatly increased, the recovery time can be shortened and waste of the carbon fiber material can be avoided by adopting the recovery method.

Description

technical field [0001] The invention relates to the technical field of fiber composite material recycling, in particular to a carbon fiber composite material recycling method. Background technique [0002] In the prior art, the waste carbon fiber composite materials, such as the waste generated after use or the waste cut in the production process, are mostly treated by burning or discarding, resulting in waste of resources. The carbon fiber in the composite material is still left as a residue, and the cleaning is not thorough, and the disposal method will cause waste of land resources and pollute the surrounding environment. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide a carbon fiber composite material recycling method with strong recycling ability, high recycling efficiency and short recycling time, thereby avoiding carbon fiber waste. [0004] The technical scheme that realizes the object of the present invention is as follows: ...

Claims

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Application Information

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IPC IPC(8): C08J11/12C08J11/00
CPCY02W30/62
Inventor 季小强刘时海何梦瑶袁洁静
Owner CHANGZHOU HONGFA ZONGHENG ADVANCED MATERIAL TECH
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