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Solar light secondary reflection recycling carbon fiber device and recycling method
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A carbon fiber recovery and secondary reflection technology, applied in the direction of solar thermal devices, solar ray concentration, plastic recycling, etc., can solve the problems of high energy consumption, low stacking density, and difficult application, so as to reduce the cost of recycling, and the method is simple and effective. The effect of saving resources
Inactive Publication Date: 2017-01-18
EAST CHINA UNIV OF SCI & TECH +1
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However, the thermal cracking method is limited by the volume of the thermal cracking furnace, and it is impossible to process large or even super-large carbon fiber reinforcements at one time; in addition, the large thermal cracking furnace needs to continuously maintain a temperature range of 400-550 ° C, which consumes Can be extremely large, making carbon fiber recycling more expensive
[0006] Another problem is that the reuse of recycled carbon fiber, especially in the high-end segment, depends on the quality of recycled carbon fiber
At present, the recycled carbon fibers have different sizes, low bulk density, serious loss, and the recycled carbon fibers are in disorder, which is not easy to be applied in the remanufacturing process, and even more difficult to be applied in high-end application fields.
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Embodiment 1
[0063] The method for reclaiming carbon fiber from carbon fiber-reinforced macromolecules by utilizing the solar light secondary reflection recycling carbon fiber device of the present invention is to comprise the following steps:
[0064] (1) Take a piece of CFRP waste with a size of 600mm×600mm×3mm square sheet (see image 3 ).
[0065] (2) Fix the sheet in step (1) on the 3D sample moving platform 52 .
[0066] (3) Focusing sunlight (through the quartz cover 3 ) into the sample chamber 51 and stabilizing the temperature at 400° C. through the control of the software platform.
[0067] (4) Move the 3D sample moving platform 52 in step (2) into the sample chamber 51 in step (3), and move the 3D sample moving platform 52 at a constant speed in the X and Y axis directions through the control of the software platform to make the CFRP treatment uniform , irradiated for 60 minutes.
[0068] (5) Take out the sheet that has been irradiated in step (4), cool it down to room temper...
Embodiment 2
[0073] The method for reclaiming carbon fiber from carbon fiber-reinforced macromolecules by utilizing the solar light secondary reflection recycling carbon fiber device of the present invention is to comprise the following steps:
[0074] (1) CFRP waste using a long sheet.
[0075] (2) (same as embodiment 1).
[0076] (3) Focus sunlight into the sample chamber 51 and stabilize the temperature at 360° C. through the control of the software platform.
[0077] (4) (same as Example 1), irradiated for 180 minutes.
[0078] (5) (same as Example 1) to obtain recovered carbon fibers.
Embodiment 3
[0080] The method for reclaiming carbon fiber from carbon fiber-reinforced macromolecules by utilizing the solar light secondary reflection recycling carbon fiber device of the present invention is to comprise the following steps:
[0081] (1) CFRP waste using a long sheet.
[0082] (2) (same as embodiment 1).
[0083](3) Focusing sunlight into the sample chamber 51 and stabilizing the temperature at 550° C. through the control of the software platform.
[0084] (4) (same as Example 1), irradiated for 5 minutes.
[0085] (5) (same as Example 1) to obtain recovered carbon fibers.
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Abstract
The invention discloses a device for recycling carbon fiber by sunshine secondary reflection; the device comprises a carbon fiber recycling system, a waste gas recycling system and an energy power system; the carbon fiber recycling system comprises a sunshine concentrator system and a sample fixing system, the sunshine concentrator system is composed of a retroreflector and a secondary light condensation tower, and the waste gas recycling processing system comprises a dust removal device, a heat exchanger, a carbon dioxide absorption tower, a plasma processor, a fan and corresponding pipelines, and the device is powered by a solar photovoltaic system. The method using the device for recycling carbon fiber includes the following steps: 1, using a carbon fiber reinforced composite material of which the size and shape are not limited; 2, the material is fixed on a three dimensional 3D sample mobile platform; 3, focusing sunshine into a sample chamber, and stabilizing the temperature at 360 to 550 DEG C; 4, transferring the 3D sample mobile platform into the sample chamber, irradiating for 5-180 minutes; and 5, cooling, and removing impurities to obtain recycled carbon fiber. The device needs no organic solvent and no consumption of thermal power, and has a positive significance for the recovery of CFRP (carbon fiber reinforced plastics) waste.
Description
technical field [0001] The invention belongs to the technical field of polymer material recovery, and in particular relates to a device for recovering carbon fiber by secondary reflection of sunlight and a method for recovering carbon fiber from carbon fiber reinforced polymer by using the device. Background technique [0002] Carbon fiber reinforced polymer composites (CFRP) has the advantages of light weight, excellent mechanical strength, good corrosion resistance and low thermal expansion, and is being increasingly used in aerospace, automobile manufacturing, sporting goods, Renewable energy and other fields are widely used, and the increment of application is 10-15% every year. However, while CFRP is widely used, the waste of CFRP containing thermosetting resin base is also increasing. Since the composition of CFRP waste is difficult to degrade, if it cannot be recycled or processed effectively, it will not only seriously pollute the environment, but also cause a great...
Claims
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Application Information
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