CN106750506B - A kind of method of two-step thermal processing recycling carbon fiber - Google Patents
A kind of method of two-step thermal processing recycling carbon fiber Download PDFInfo
- Publication number
- CN106750506B CN106750506B CN201611247334.4A CN201611247334A CN106750506B CN 106750506 B CN106750506 B CN 106750506B CN 201611247334 A CN201611247334 A CN 201611247334A CN 106750506 B CN106750506 B CN 106750506B
- Authority
- CN
- China
- Prior art keywords
- heating
- carbon fibre
- precision processing
- fiber
- carbon
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J11/00—Recovery or working-up of waste materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2361/00—Characterised by the use of condensation polymers of aldehydes or ketones; Derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2361/00—Characterised by the use of condensation polymers of aldehydes or ketones; Derivatives of such polymers
- C08J2361/04—Condensation polymers of aldehydes or ketones with phenols only
- C08J2361/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2361/00—Characterised by the use of condensation polymers of aldehydes or ketones; Derivatives of such polymers
- C08J2361/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08J2361/22—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds
- C08J2361/24—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds with urea or thiourea
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2363/00—Characterised by the use of epoxy resins; Derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/06—Unsaturated polyesters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2379/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups C08J2361/00 - C08J2377/00
- C08J2379/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
- C08J2379/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Inorganic Fibers (AREA)
- Reinforced Plastic Materials (AREA)
Abstract
The invention belongs to the recycling field of carbon fibre composite more particularly to a kind of methods of two-step thermal processing recycling carbon fiber.This method includes pretreatment and two processes of precision processing；The preprocessing process are as follows: carbon fibre composite is heated to 450 DEG C~600 DEG C, and is kept for 3~4 hours, heat source is then removed, it is cooling；The precision processing process are as follows: 500 DEG C~550 DEG C will be heated to by the pretreated carbon fibre composite, and kept for 2~3 hours, heat source is then removed, cooling, finally obtained solid product is carbon fiber after the recovery.Recovery method of the invention can obtain that clean, the extent of damage is small, the carbon fiber of long and orderly high added value.The size and shape of the carbon fibre reinforced composite are unrestricted, can be carried out continuously the recycling of carbon fiber, and can handle large-sized carbon fibre composite, thus improve recovery efficiency, have saved resource, saved cost recovery.
Description
Technical field
The invention belongs to the recycling fields of carbon fibre composite more particularly to a kind of two-step thermal processing to recycle carbon fiber
Method.
Background technique
Carbon fibre reinforced high-molecular composite material (Carbon fiber reinforced polymer composites,
Abbreviation CFRP) have the characteristics that small density, specific strength and specific modulus are high, endurance life is high, fail safety characteristic is good, it is extensive
Applied to industries such as aerospace, auto industry, Wind Power Generation Industry, sports goods.It is expected that only world's Forecast For Commercial Transport Market is to carbon
The demand of fiber is up to (2.0~3.0) × 104Ton/year.Furthermore it is contemplated that the whole world, which amounts to, there will be over 8500 by 2025
The business aircraft of frame is retired.In discarded carbon fibre composite, thermoplastic resin-based carbon fiber composite can pass through system
It is recycled at slice, and is mainly buried and burning to the conventional method of thermosetting resin recycling, but thermosetting resin base is compound
It cannot degrade within 50~100 years after material is buried, it is serious to environmental disruption；A large amount of cigarettes can be generated if carrying out burning disposal to it
Dirt, pernicious gas pollute environment.
The method of recycling CFRP mainly includes physical method, solvent method and pyrolysismethod at present.Since physical method is needed to compound
Material is crushed, and cannot recycle long fibre, therefore this method is not that the best of the long carbon fiber composite material of high value returns
Receiving method.Solvent method will use organic solvent or strong acid in removal process, also or under conditions of high temperature and pressure be returned
Receipts processing, not only can generation environment pollution, some of techniques are also more complicated, cause cost recovery higher.Pyrolysis method is
The currently the only carbon fiber recovery technology in commercial applications, if but control the technological parameter of bad pyrolysismethod, it can be to recycling
To the mechanical strength of carbon fiber damage, meanwhile, pyrolysismethod cannot disposably be handled big ruler by pyrolysis oven volumetric constraint
Very little carbon fiber composite.Therefore, CFRP is degraded under relatively reasonable technique, it is small is recovered to loss in mechanical strength
Long carbon fiber can not only alleviate environmental pressure, reduce industry pollution, and can reduce product cost, have important warp
Ji meaning.
Summary of the invention
In order to solve the above-mentioned technical problems, the present invention provides a kind of method of two-step thermal processing recycling carbon fiber, packets
Include two processes of pretreatment and precision processing；The preprocessing process are as follows: (i.e. background technique is mentioned by carbon fibre composite
CFRP 450 DEG C~600 DEG C) are heated to, and is kept for 3~4 hours, heat source is then removed, it is cooling；The precision processing process are as follows: will
By the pretreated carbon fibre composite heating (being preferably placed into heating in burner hearth) to 500 DEG C~550 DEG C, and keep 2
~3 hours, heat source is then removed, it is cooling, that is, complete the process of entire heat treatment recycling carbon fiber, finally obtained solid product
Carbon fiber as after the recovery.
The present invention first pre-processes carbon fibre composite, then carries out precision processing, by the strict control to technique,
It can obtain that clean, the extent of damage is small, the carbon fiber of long and orderly high added value.And the fibre reinforced is compound
The size and shape of material are unrestricted, can be carried out continuously the recycling of carbon fiber, thus improve recovery efficiency.
Wherein, in the preprocessing process be cooled to the carbon fibre composite is cooled to 30~60 DEG C, preferably
The cooling procedure is Temperature fall.
Wherein, heating rate when heating in the preprocessing process is 10~30 DEG C/min；And/or the pretreatment
Heating method in the process is any one of the heating of sunlight optically focused, electric heating, heating by infrared radiation or media for heat exchange；
And/or the heating atmosphere in the preprocessing process is to have oxygen atmosphere or oxygen-free atmosphere.
The present invention provides a kind of preferred embodiments of preprocessing process, it may be assumed that in the heating atmosphere of ambient air
Under, carbon fibre composite is heated to the heating rate of 25 DEG C/min using the heating method that sunlight optically focused heats
500 DEG C, and kept for 3.5 hours, then naturally cool to 50 DEG C.
Wherein, it is cooled to for the carbon fibre composite being cooled to room temperature during the precision processing, it is preferably described
Cooling procedure is Temperature fall.
Wherein, heating rate when heating during the precision processing is 20~30 DEG C/min；And/or the precision processing
Heating method in the process is any one of the heating of sunlight optically focused, electric heating, fuse salt heating or heat-conducting oil heating；With/
Or, the heating atmosphere during the precision processing is to have oxygen atmosphere or oxygen-free atmosphere.
The present invention provides a kind of preferred embodiments of precision processing process, it may be assumed that under the heating atmosphere of helium, using electricity
The heating method of heating will be heated to 550 through the pretreated carbon fibre composite with the heating rate of 25 DEG C/min
DEG C, and kept for 2.5 hours, it then cools to room temperature, that is, completes the process of entire recycling carbon fiber.
Wherein, during the precision processing, the heating will carried out by the pretreated carbon fibre composite
It is preceding first to carry out machine cuts.
Wherein, the matrix of the carbon fibre composite is thermosetting resin；
Preferably, the thermosetting resin is epoxy resin, phenolic resin, unsaturated polyester resin, polyurethane resin, gathers
Any one of imide resin, Lauxite or furane resins.
Wherein, the form of the carbon fibre composite is continuous fiber, long fibre, staple fiber, powder fiber or carbon fiber
Tie up one of fabric or a variety of.
Above-mentioned technical proposal of the invention has the advantages that the present invention first locates carbon fibre composite in advance
Reason, then precision processing is carried out, by the strict control to technique, the height that clean, the extent of damage is small, long and orderly can be obtained
The carbon fiber of added value.The size and shape of the carbon fibre reinforced composite are unrestricted, can be carried out continuously carbon fiber
Recycling, thus improve recovery efficiency.Pretreatment and precision processing process of the invention is optional to be heated using sunlight optically focused, is made
CFRP waste is pre-processed with sunlight optically focused heating system, is not subject to processing the limitation of device volume, can handle big
The carbon fibre composite of size, and resource has been saved, save cost recovery.
Detailed description of the invention
Fig. 1 is that the temperature of technique used in the present invention changes with time relational graph；
Fig. 2 is the carbon fibre composite configuration of surface figure of the embodiment of the present invention 1 before and after the processing；
Fig. 3 is the carbon fibre composite configuration of surface figure of the embodiment of the present invention 2 before and after the processing.
Specific embodiment
Embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples.Following embodiment is used for
Illustrate the present invention, but cannot be used to limit the scope of the invention.
For details, reference can be made to attached drawings 1 for the technical process of the embodiment of the present invention.It is carbon-fibre reinforced described in the embodiment of the present invention
Epoxy resin-based composite derives from retired aircraft.
Embodiment 1
A kind of method for present embodiments providing two-step thermal processing recycling carbon fiber, it may be assumed that
Selection carbon fiber reinforced epoxy resin-based composite is compound by carbon-fibre reinforced epoxy resin as salvage material
Material is pre-processed in the form that sunlight optically focused heats.Pretreatment atmosphere is the air of normal temperature and pressure, heating rate 15
DEG C/min, 450 DEG C are heated to, and keep the temperature 3 hours, then naturally cool to 30 DEG C.
Pretreated carbon fibre composite is directly placed into the burner hearth for being used for precision processing, burner hearth is heat with electric heating
Source is passed through helium, and is heated to 500 DEG C with the heating rate of 20 DEG C/min, after keeping the temperature 2 hours, is cooled to room temperature to it, i.e., complete
At entire removal process, finally obtained solid product is carbon fiber.
Referring to attached drawing 2, the carbon fiber that the present embodiment recycles is compared compared with right side fibrinogen plate.Carbon fiber after heat treatment
There is then lamination in dimension, it is apparent that establishment texture, and can be removed easily.The black particle that carbon fiber surface occurs
It may be the carbonization of resin in heat treatment process.Prove that resin is handled under the heat treatment condition, guarantees that carbon fiber obtains
High efficiente callback.
Embodiment 2
A kind of method for present embodiments providing two-step thermal processing recycling carbon fiber, it may be assumed that
Selection carbon fiber reinforced epoxy resin-based composite is compound by carbon-fibre reinforced epoxy resin as salvage material
Material is pre-processed in the form that sunlight optically focused heats.Pretreatment atmosphere is the air of normal temperature and pressure, heating rate 20
DEG C/min, 500 DEG C are heated to, and keep the temperature 3.5 hours, then naturally cool to 40 DEG C.
Pretreated carbon fibre composite is directly placed into the burner hearth for being used for precision processing, burner hearth is heat with electric heating
Source is passed through helium, and is heated to 550 DEG C with the heating rate of 25 DEG C/min, after keeping the temperature 2.5 hours, is cooled to room temperature to it, i.e.,
Complete entire removal process.
Referring to attached drawing 3, the carbon fiber that the present embodiment recycles is compared compared with right side fibrinogen plate.Carbon fiber after heat treatment
Dimension is scattered completely, and not only establishment texture is seen in layering completely, and can extract fiber precursor from intermediate treated sample easily.
The micro black particle that carbon fiber surface occurs is the carbonization of resin in heat treatment process.Prove that resin has obtained under the technique
Full pyrolysis guarantees that carbon fiber obtains clean and effective recycling compared with traditional way of recycling.
The embodiment of the present invention is given for the purpose of illustration and description, and is not exhaustively or by this to send out
It is bright to be limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Choosing
Selecting and describe embodiment is and to make those skilled in the art to more preferably illustrate the principle of the present invention and practical application
It will be appreciated that the present invention is to design various embodiments suitable for specific applications with various modifications.
Claims (45)
1. a kind of method of two-step thermal processing recycling carbon fiber, which is characterized in that including pretreatment and two processes of precision processing；
The preprocessing process are as follows: carbon fibre composite is heated to 450 DEG C~600 DEG C, and is kept for 3~4 hours, it is then cold
But；
The precision processing process are as follows: 500 DEG C~550 DEG C will be heated to by the pretreated carbon fibre composite, and protected
It holds 2~3 hours, then cools down, finally obtained solid product is carbon fiber after the recovery.
2. the method according to claim 1, wherein being cooled in the preprocessing process by the carbon fiber
Composite material is cooled to 30~60 DEG C.
3. according to the method described in claim 2, it is characterized in that, being cooled in the preprocessing process by the carbon fiber
Composite material Temperature fall.
4. described in any item methods according to claim 1~3, which is characterized in that liter when being heated in the preprocessing process
Warm rate is 10~30 DEG C/min；And/or the heating method in the preprocessing process be the heating of sunlight optically focused, electric heating,
Any one of heating by infrared radiation or media for heat exchange；And/or the heating atmosphere in the preprocessing process is to have oxygen atmosphere
Or oxygen-free atmosphere.
5. described in any item methods according to claim 1~3, which is characterized in that the preprocessing process specifically: in room temperature
Under the heating atmosphere of atmospheric air, the heating method heated using sunlight optically focused, with the heating rate of 25 DEG C/min, by carbon fiber
Dimension composite material is heated to 500 DEG C, and is kept for 3.5 hours, then naturally cools to 50 DEG C.
6. according to the method described in claim 4, it is characterized in that, the preprocessing process specifically: in ambient air
Heating atmosphere under, using sunlight optically focused heat heating method, with the heating rate of 25 DEG C/min, by carbon fiber composite
Material is heated to 500 DEG C, and is kept for 3.5 hours, then naturally cools to 50 DEG C.
7. according to claim 1~3,6 described in any item methods, which is characterized in that be cooled to during the precision processing
The carbon fibre composite is cooled to room temperature.
8. the method according to the description of claim 7 is characterized in that being cooled to during the precision processing by the carbon fiber
Composite material Temperature fall.
9. according to the method described in claim 4, it is characterized in that, being cooled to during the precision processing by the carbon fiber
Composite material is cooled to room temperature.
10. according to the method described in claim 9, it is characterized in that, being cooled to during the precision processing by the carbon fiber
Tie up composite material Temperature fall.
11. according to the method described in claim 5, it is characterized in that, being cooled to during the precision processing by the carbon fiber
Dimension composite material is cooled to room temperature.
12. according to the method for claim 11, which is characterized in that be cooled to during the precision processing by the carbon fiber
Tie up composite material Temperature fall.
13. according to claim 1~3,6,8~12 described in any item methods, which is characterized in that add during the precision processing
Heating rate when hot is 20~30 DEG C/min；And/or the heating method during the precision processing is that sunlight optically focused adds
Any one of heat, electric heating, fuse salt heating or heat-conducting oil heating；And/or the heating atmosphere during the precision processing is
There are oxygen atmosphere or oxygen-free atmosphere.
14. according to the method described in claim 4, it is characterized in that, heating rate when heating during the precision processing is
20~30 DEG C/min；And/or the heating method during the precision processing is that the heating of sunlight optically focused, electric heating, fuse salt add
Any one of heat or heat-conducting oil heating；And/or the heating atmosphere during the precision processing is to have oxygen atmosphere or no oxygen
Atmosphere.
15. according to the method described in claim 5, it is characterized in that, heating rate when heating during the precision processing is
20~30 DEG C/min；And/or the heating method during the precision processing is that the heating of sunlight optically focused, electric heating, fuse salt add
Any one of heat or heat-conducting oil heating；And/or the heating atmosphere during the precision processing is to have oxygen atmosphere or no oxygen
Atmosphere.
16. the method according to the description of claim 7 is characterized in that heating rate when heating during the precision processing is
20~30 DEG C/min；And/or the heating method during the precision processing is that the heating of sunlight optically focused, electric heating, fuse salt add
Any one of heat or heat-conducting oil heating；And/or the heating atmosphere during the precision processing is to have oxygen atmosphere or no oxygen
Atmosphere.
17. according to claim 1~3,6,8~12,14~16 described in any item methods, which is characterized in that the precision processing
Process specifically:,, will be through with the heating rate of 25 DEG C/min using electrically heated heating method under the heating atmosphere of helium
The pretreated carbon fibre composite is heated to 550 DEG C, and is kept for 2.5 hours, then cools to room temperature, that is, completes whole
The process of a recycling carbon fiber.
18. according to the method described in claim 4, it is characterized in that, the precision processing process specifically: in the heating gas of helium
It, will be through the pretreated carbon fiber composite with the heating rate of 25 DEG C/min using electrically heated heating method under atmosphere
Material is heated to 550 DEG C, and is kept for 2.5 hours, then cools to room temperature, that is, completes the process of entire recycling carbon fiber.
19. according to the method described in claim 5, it is characterized in that, the precision processing process specifically: in the heating gas of helium
It, will be through the pretreated carbon fiber composite with the heating rate of 25 DEG C/min using electrically heated heating method under atmosphere
Material is heated to 550 DEG C, and is kept for 2.5 hours, then cools to room temperature, that is, completes the process of entire recycling carbon fiber.
20. the method according to the description of claim 7 is characterized in that the precision processing process specifically: in the heating gas of helium
It, will be through the pretreated carbon fiber composite with the heating rate of 25 DEG C/min using electrically heated heating method under atmosphere
Material is heated to 550 DEG C, and is kept for 2.5 hours, then cools to room temperature, that is, completes the process of entire recycling carbon fiber.
21. according to the method for claim 13, which is characterized in that the precision processing process specifically: in the heating of helium
It, will be compound through the pretreated carbon fiber with the heating rate of 25 DEG C/min using electrically heated heating method under atmosphere
Material is heated to 550 DEG C, and is kept for 2.5 hours, then cools to room temperature, that is, completes the process of entire recycling carbon fiber.
22. according to claim 1~3,6,8~12,14~16,18~21 described in any item methods, which is characterized in that described
During precision processing, machine cuts will be first carried out before carrying out the heating by the pretreated carbon fibre composite.
23. according to the method described in claim 4, it is characterized in that, will pass through described pretreated during the precision processing
Carbon fibre composite first carries out machine cuts before carrying out the heating.
24. according to the method described in claim 5, it is characterized in that, will pass through described pretreated during the precision processing
Carbon fibre composite first carries out machine cuts before carrying out the heating.
25. the method according to the description of claim 7 is characterized in that will pass through described pretreated during the precision processing
Carbon fibre composite first carries out machine cuts before carrying out the heating.
26. according to the method for claim 13, which is characterized in that during the precision processing, the pretreatment will be passed through
Carbon fibre composite first carry out machine cuts before carrying out the heating.
27. according to the method for claim 17, which is characterized in that during the precision processing, the pretreatment will be passed through
Carbon fibre composite first carry out machine cuts before carrying out the heating.
28. according to claim 1~3,6,8~12,14~16,18~21,23~27 described in any item methods, feature exist
In the matrix of the carbon fibre composite is thermosetting resin.
29. according to the method for claim 28, which is characterized in that the thermosetting resin be epoxy resin, phenolic resin,
Any one of unsaturated polyester resin, polyurethane resin, polyimide resin, Lauxite or furane resins.
30. according to the method described in claim 4, it is characterized in that, the matrix of the carbon fibre composite is thermosetting property tree
Rouge.
31. according to the method described in claim 5, it is characterized in that, the matrix of the carbon fibre composite is thermosetting property tree
Rouge.
32. the method according to the description of claim 7 is characterized in that the matrix of the carbon fibre composite is thermosetting property tree
Rouge.
33. according to the method for claim 13, which is characterized in that the matrix of the carbon fibre composite is thermosetting property tree
Rouge.
34. according to the method for claim 17, which is characterized in that the matrix of the carbon fibre composite is thermosetting property tree
Rouge.
35. according to the method for claim 22, which is characterized in that the matrix of the carbon fibre composite is thermosetting property tree
Rouge.
36. according to the described in any item methods of claim 30~35, which is characterized in that the thermosetting resin is asphalt mixtures modified by epoxy resin
Any in rouge, phenolic resin, unsaturated polyester resin, polyurethane resin, polyimide resin, Lauxite or furane resins
Kind.
37. according to claim 1~3,6,8~12,14~16,18~21,23~27,29~35 described in any item methods,
It is characterized in that, the form of the carbon fibre composite is continuous fiber, long fibre, staple fiber, powder fiber or carbon fiber
One of fabric is a variety of.
38. according to the method described in claim 4, it is characterized in that, the form of the carbon fibre composite be continuous fiber,
One of long fibre, staple fiber, powder fiber or carbon fibre fabric are a variety of.
39. according to the method described in claim 5, it is characterized in that, the form of the carbon fibre composite be continuous fiber,
One of long fibre, staple fiber, powder fiber or carbon fibre fabric are a variety of.
40. the method according to the description of claim 7 is characterized in that the form of the carbon fibre composite be continuous fiber,
One of long fibre, staple fiber, powder fiber or carbon fibre fabric are a variety of.
41. according to the method for claim 13, which is characterized in that the form of the carbon fibre composite is continuous fine
One of dimension, long fibre, staple fiber, powder fiber or carbon fibre fabric are a variety of.
42. according to the method for claim 17, which is characterized in that the form of the carbon fibre composite is continuous fine
One of dimension, long fibre, staple fiber, powder fiber or carbon fibre fabric are a variety of.
43. according to the method for claim 22, which is characterized in that the form of the carbon fibre composite is continuous fine
One of dimension, long fibre, staple fiber, powder fiber or carbon fibre fabric are a variety of.
44. according to the method for claim 28, which is characterized in that the form of the carbon fibre composite is continuous fine
One of dimension, long fibre, staple fiber, powder fiber or carbon fibre fabric are a variety of.
45. according to the method for claim 36, which is characterized in that the form of the carbon fibre composite is continuous fine
One of dimension, long fibre, staple fiber, powder fiber or carbon fibre fabric are a variety of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611247334.4A CN106750506B (en) | 2016-12-29 | 2016-12-29 | A kind of method of two-step thermal processing recycling carbon fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611247334.4A CN106750506B (en) | 2016-12-29 | 2016-12-29 | A kind of method of two-step thermal processing recycling carbon fiber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106750506A CN106750506A (en) | 2017-05-31 |
| CN106750506B true CN106750506B (en) | 2019-07-12 |
Family
ID=58929290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611247334.4A Active CN106750506B (en) | 2016-12-29 | 2016-12-29 | A kind of method of two-step thermal processing recycling carbon fiber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106750506B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA3183236A1 (en) * | 2020-06-17 | 2021-12-23 | Grst International Limited | Method for composite delamination |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103665427A (en) * | 2013-12-11 | 2014-03-26 | 上海交通大学 | Method for recovering carbon fiber by cracking waste carbon fiber composite material |
| CN103665430A (en) * | 2013-11-21 | 2014-03-26 | 上海交通大学 | Thermolysis separation method for resin and carbon fibers in waste carbon fiber composite material |
| CN104262675A (en) * | 2014-09-01 | 2015-01-07 | 苏州德宝凯迪新材料有限公司 | Method for recovering carbon fibers from carbon fiber composite material |
-
2016
- 2016-12-29 CN CN201611247334.4A patent/CN106750506B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103665430A (en) * | 2013-11-21 | 2014-03-26 | 上海交通大学 | Thermolysis separation method for resin and carbon fibers in waste carbon fiber composite material |
| CN103665427A (en) * | 2013-12-11 | 2014-03-26 | 上海交通大学 | Method for recovering carbon fiber by cracking waste carbon fiber composite material |
| CN104262675A (en) * | 2014-09-01 | 2015-01-07 | 苏州德宝凯迪新材料有限公司 | Method for recovering carbon fibers from carbon fiber composite material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106750506A (en) | 2017-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP7098639B2 (en) | How to recover carbon fiber from composite waste | |
| Pimenta et al. | Recycling carbon fibre reinforced polymers for structural applications: Technology review and market outlook | |
| CN106807425B (en) | Discarded carbon fiber resin matrix composite pyrolysis catalysts and recycling carbon fiber method | |
| CN103665427B (en) | The method of carbon fiber is reclaimed in a kind of waste carbon fibre composite cracking | |
| CN104262675A (en) | Method for recovering carbon fibers from carbon fiber composite material | |
| CN103665430B (en) | The thermolysis separation method of resin and carbon fiber in a kind of waste carbon fibre composite | |
| Kissounko et al. | New material: Vitrimers promise to impact composites | |
| CN102555238A (en) | Manufacturing method of fiber cloth reinforced thermoplastic resin composite material | |
| CN106750506B (en) | A kind of method of two-step thermal processing recycling carbon fiber | |
| Chen et al. | A circular economy study on the characterization and thermal properties of thermoplastic composite created using regenerated carbon fiber recycled from waste thermoset CFRP bicycle part as reinforcement | |
| CN106810711A (en) | A kind of method that carbon fiber is reclaimed from waste and old carbon fibre reinforced composite | |
| Slange et al. | Influence of preconsolidation on consolidation quality after stamp forming of C/PEEK composites | |
| TW201930426A (en) | Carbon fiber recycling method | |
| Shi et al. | Research in recycling technology of fiber reinforced polymers for reduction of environmental load: Optimum decomposition conditions of carbon fiber reinforced polymers in the purpose of fiber reuse | |
| Cheng et al. | A closed-loop recycling process for carbon fiber-reinforced polymer waste using thermally activated oxide semiconductors: Carbon fiber recycling, characterization and life cycle assessment | |
| Sarmah et al. | Recycle and reuse of continuous carbon fibers from thermoset composites using Joule heating | |
| CN106750505B (en) | The method and device of thermal activation oxide semiconductor recycling carbon fiber | |
| Choi et al. | Laser-assisted joining of carbon fiber reinforced polyetherketoneketone thermoplastic composite laminates | |
| CN110181714A (en) | A kind of recycling and reusing method of polymer matrix composite waste | |
| CN108467511A (en) | The recovery method of carbon fiber in a kind of discarded carbon carbon composite | |
| Liu et al. | Thermal analysis of cylindrical molds using thermoplastic composite during robotic fiber placement | |
| CN114131786A (en) | Recovery and extraction system for waste composite material | |
| Yamane et al. | Possibility of repeated recycling of CFRTP for mass production automotive application | |
| JP2022030256A (en) | Method of recovering carbon fiber from carbon fiber-reinforced resin | |
| Boillat | Energy efficient fibre composites recycling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |