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Carbon fiber felt production process based on carbon fiber waste

A technology of carbon fiber felt and production process, which is applied in the field of carbon fiber production and processing, can solve the problems of reducing the effective utilization rate of fibers, not using fibers, and being unable to process, etc., and achieves improved filtration performance, good dimensional stability and adsorption, and finished product performance excellent effect

Inactive Publication Date: 2020-01-24
NANJING DEBEILI NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the domestic carbon fiber production and processing industry will produce a large amount of waste silk, some fibers are processed into chopped fibers and ground fibers, but there are still a large number of fibers that have not been used, and most of the random fibers cannot be processed or are extremely difficult to comb. Greatly reduces the effective utilization rate of fibers, for this, the application proposes a carbon fiber mat production process based on carbon fiber waste

Method used

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  • Carbon fiber felt production process based on carbon fiber waste

Examples

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Effect test

Embodiment 1

[0024] A carbon fiber mat production process based on carbon fiber waste silk, comprising the following steps:

[0025] 1) Get industrial carbon fiber waste silk, dry after cleaning, and cut into short fiber silk of 5-8cm, then send in the opening machine, open treatment, standby; In the opening treatment process, the licker-in speed is 1250rpm, feed The inlet roller is 7rpm, and the speed of the wind conveying fan is 1400rpm;

[0026] 2) Take an appropriate amount of synthetic fiber filaments, auxiliary agents and the carbon fiber filaments after opening in step 1) for batching to obtain a prefabricated blended fabric for future use; the mass percentage of each raw material in the prefabricated blended fabric is 10wt of synthetic fiber filaments %, auxiliary agent 7.6wt%, carbon fiber waste residue;

[0027] 3) Send the prefabricated mixed fabric in step 2) into the carding machine for carding, the cylinder speed is 300rpm, the licker-in roller speed is 750rpm, after the car...

Embodiment 2

[0031] A carbon fiber mat production process based on carbon fiber waste silk, comprising the following steps:

[0032] 1) Get industrial carbon fiber waste silk, dry after cleaning, and cut into short fiber silk of 5-8cm, then send in the opening machine, open treatment, standby; In the opening treatment process, the licker-in speed is 1250rpm, feed The inlet roller is 8rpm, and the speed of the wind conveying fan is 1300rpm;

[0033] 2) Take an appropriate amount of synthetic fiber filaments, auxiliary agents and the carbon fiber filaments after opening in step 1) for batching to obtain a prefabricated mixed fabric, which is set aside; the mass percentage of each raw material in the prefabricated mixed fabric is 11wt of synthetic fiber filaments %, auxiliary agent 7wt%, carbon fiber waste residue;

[0034] 3) Send the prefabricated mixed fabric in step 2) into the carding machine for carding, the cylinder speed is 300rpm, the licker-in roller speed is 750rpm, after the card...

Embodiment 3

[0038] A carbon fiber mat production process based on carbon fiber waste silk, comprising the following steps:

[0039] 1) Take industrial carbon fiber waste silk, dry it after cleaning, and cut it into short fiber silk of 5-8cm, then send it into the opening machine for opening treatment and standby; the licker-in speed in the opening treatment process is 1200rpm, feed The inlet roller is 8rpm, and the speed of the wind conveying fan is 1500rpm;

[0040] 2) Take an appropriate amount of synthetic fiber filaments, auxiliary agents and the carbon fiber filaments after opening in step 1) for batching to obtain a prefabricated blended fabric for future use; the mass percentage of each raw material in the prefabricated blended fabric is 9wt of synthetic fiber filaments %, auxiliary agent 5wt%, carbon fiber waste residue;

[0041] 3) Send the prefabricated mixed fabric in step 2) into the carding machine for carding. The cylinder speed is 280rpm, and the licker-in roller speed is ...

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Abstract

The invention relates to the technical field of carbon fiber production and provides a carbon fiber felt production process based on carbon fiber waste, comprising the steps of cleaning and then drying industrial carbon fiber waste, cutting the carbon fiber waste into staple fibers 5-8 cm in length, sending the staple fibers in an opening machine for opening for the next step; blending an appropriate amount of synthetic fiber, assistants and the opened carbon fiber prepared in the step 1 to obtain a pre-formed blended material for the next step; sending the pre-formed blended material in a carding machine to be carded, lapping the material into felt by a lapping machine, directly needling and shaping by a needling machine, and finally trimming and rolling up to obtain a finished product. Raw materials of the carbon felt are selected and blended reasonably, the processing parameter is optimized, the industrial fiber waste is reutilized, and the finished product has excellent performance, high comprehensive practicability, and is worthy of being promoted and applied.

Description

technical field [0001] The invention relates to the technical field of carbon fiber production and processing, in particular to a carbon fiber felt production process based on carbon fiber waste silk. Background technique [0002] Carbon fiber is an inorganic material obtained by decomposing organic matrix fibers under inert gas at a high temperature of 1000-3000°C. During the anaerobic high-temperature treatment process, all elements except carbon are removed, so the final carbon content is 90 %above. Carbon fiber is black in appearance, hard in texture, high in strength and light in weight. The weight of carbon fiber is only a quarter of that of steel (specific gravity: 1.8 / 7.82), but its strength can reach 5 times that of steel (strength: 580 / 122ksi). Therefore, carbon fiber has a very broad application prospect in engineering. [0003] Carbon fiber has many excellent properties, such as high axial strength and modulus, low density, high specific performance, no creep, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/4382D04H1/46D06C7/04B01D39/14
CPCB01D39/14B01D2239/0216B01D2239/0283B01D2239/10D04H1/4382D04H1/46D06C7/04
Inventor 王小兵
Owner NANJING DEBEILI NEW MATERIALS