CN107082584A - A kind of carbon fibre reinforced composite castoff regenerative carbon fiber method - Google Patents
A kind of carbon fibre reinforced composite castoff regenerative carbon fiber method Download PDFInfo
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- CN107082584A CN107082584A CN201610085009.6A CN201610085009A CN107082584A CN 107082584 A CN107082584 A CN 107082584A CN 201610085009 A CN201610085009 A CN 201610085009A CN 107082584 A CN107082584 A CN 107082584A
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- fibre reinforced
- carbon
- carbon fibre
- carbon fiber
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/38—Fibrous materials; Whiskers
- C04B14/386—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
Abstract
It is specifically that carbon fibre reinforced composite is immersed in a kind of infiltration degradation agent the present invention relates to carbon fibre reinforced composite recovery and reuse of waste field, the method for making resin matrix be swelled degraded, recycling carbon fibre or its filler.The invention aims to solve the problems, such as carbon fibre reinforced composite degraded and the regeneration of high value carbon fiber, the advantage of this method is the composite scrap thing of Treatment of Carbon enhancing at normal temperatures and pressures, realize the regeneration of high added value carbon fiber, technological process is simple, preprocessing need not be carried out, large-size carbon fibre reinforced composites can directly be handled, save expense that is broken and crushing, it need not be heated, reduce energy consumption, it need not be pressurizeed, reduce process equipment requirement, and recycling carbon fibre or filler are not corroded, fibre damage is small, surface treatment is clean complete, fully achieve the regeneration of carbon fibre material and recycling for carbon fibre reinforced composite.
Description
Technical field
The present invention relates to a kind of carbon fibre reinforced composite recovery and reuse of waste field, specifically a kind of carbon fibre reinforced composite castoff regenerative carbon fiber method develops a kind of low energy consumption, the new method of large scale CFRP high efficiente callbacks.Specific method is that carbon fibre reinforced composite is immersed in the concentrated sulfuric acid or its infiltration degradation agent at normal temperatures and pressures, resin matrix is set to be swelled degraded, isolate carbon fiber or its filler, recycling carbon fibre is made after scrubbed drying, application field is related to the fields such as city water process, ship low-carbon loss of weight, intelligence net electrical circuitry equipment, ships and light boats maritime travel, marine anticorrosion and desalinization, the desulfurization of iron and steel metallurgy electric power, the exploitation anti-corrosion of coal stone mine and safety, wind-powered electricity generation, vehicle low-carbon, building energy conservation and decorations.
Background technology
Carbon fibre composite（Carbon Fiber Reinforced Plastics, also referred to as CFRP）It is the composite being combined into by carbon fiber and organic resin, that is carbon fibre reinforced plastic, with density is small, specific strength and specific modulus are high, the features such as endurance life is high, fail safety characteristic is good, using widely [Sun M.L.Principle and technology of epoxy applications [M]
Beijing:Machinery Industry Press, 2002].
Carbon fibre reinforced composite is classified by matrix, is mainly divided to two major classes：One class is reinforcedathermoset matrices, such as common epoxy resin, unsaturated polyester resin；Another kind of is thermoplastic matrix, such as common nylon, polyethers ether ketone resin.This two classes matrix material has many different properties.Thermoplastic matrix is realized using the change of the thawing of resin, flowing, cooling, the physical state of solidification.The change of its physical state is reversible, i.e., reshaping, processing are possible.In contrast to this, the shaping of reinforcedathermoset matrices is to utilize the chemical reaction between molecular resin（Bridging reaction）, form cross-linked structure after solidification, its process is irreversible.With insoluble insoluble characteristic, therefore its recovery is extremely difficult.
With the increasingly extensive application of carbon fibre composite, produced thermosetting resin junk is growing day by day, on the one hand huge pressure is brought to environment, carbon-fibre component containing high value in another aspect composite, if carrying out simply accumulation to composite or burial being handled, it will result in the waste of resource and the pollution of environment, thus the recovery of thermosetting resin and its composite is increasingly subject to the concern of academia and industrial quarters.The method being related to mainly includes two kinds of Physical and chemical method, and wherein Physical is mainly reclaimed using mechanical crushing, and chemical method mainly includes pyrolysismethod and solvent method, super/subcritical fluid techniques, green oxidizing process and source design method etc..
Mechanical crushing absorption method is used as a kind of relatively more early studied physical recovery method, rely primarily on plant equipment, thermosetting resin and its composite such as are pulverized, crushed or shredded at the mode by mechanical force, the materials such as block particle, short fibre that size differs are obtained, has the advantages that technique is simple, produce pollutant.
High temperature pyrolytic cracking (HTP) is to make the method for thermosetting resin degraded using heat in air or inert gas environment.Removal process makes full use of the heat that degraded is produced, and not only can obtain the clean fibrous material of filler particles and surface, can also obtain liquid organic fuel.
Fluid bed heat solution, as a kind of relatively new recovery technology, is that thermosetting resin based composites are carried out with high temperature thermal degradation by the air hot-fluid of high temperature, similar with heat treatment above, but process equipment is different.Processing procedure makes full use of the heat that degradation process is produced, and the clean fiber of filler particles and surface is obtained by cyclone separator.Microwave thermal solution refers to that material is acted on the processing method degraded in microwave cavity by microwave thermal radiation.Nitric acid is obvious to the EP effects of degraded amine curing agent solidification as a kind of strong oxidizer in solvent method, can be reclaimed under shorter time and relatively low temperature and obtain fiber of the surface without resin residue.Y. [Sato Yoshiki. Monomert recycling of thermotting such as Sato
Resins [C] .The 1st international symposium on feedstock recycling of plastics, Sendai, 1999.] depressed in 2.0 MPa nitrogen, in naphthane or decahydronaphthalene, 430-450 DEG C of 60 min of heating, acrylonitrile-butadiene-styrene (ABS) plastics and polyurethane and its foam liquid-phase pyrolysis conversion ratio are at a relatively high.Ma Jinhuan [the depolymerization mechanism of amine-type cure epoxy resin and CFRP recovery technology researchs, Master of engineering academic dissertation, 2010, Harbin Institute of Technology] use atmospheric solvent process depolymerization amine-type cure epoxy resin and its composite, it is using nitric acid as medium, in the presence of 95 DEG C of 8 mo l/L nitric acid decomposed solution, after 23 h in composite the depolymerization rate of resin up to 99.18 %；CN
102391543 A are that carbon-fibre reinforced epoxy resin composite material is cut into volume less than 5 cm3Block be placed in the reflux equipped with acid solution, with the acid solution boiling temperature heat 5 ~ 30 min after, add organic solvent and oxidant sealing reactor 50 ~ 300 DEG C of dissolving resin recycling carbon fibres recovery method.
Super/subcritical fluid techniques are that have high activity at supercritical conditions using fluid, strong solubility, the property such as excellent mobility, permeability, diffusivity, and polymer matrix composite is degraded.[Bai Y P, et the al.Mater Design, 2010,31 (2) such as white Yongping of Harbin Institute of Technology of China:999-1 002.] oxygen is added in supercritical water, improves degradation speed, reclaiming obtained CF intensity hardly reduces；T.Sugeta [Sugeta
T, et al. Kobunshi
Ronbunshu, 2001,58 (10):557-563. Sugreta T, et al. Japanese
Journal of Polymer Science and Technology, 2001,58 (10):557-563.] and [Okajima I, the et al. Kagaku Kogaku Ronbunshu, 2002,28 such as I. Okajima:553-558.] degradation behavior of fiber-reinforced resin have studied in super/subcritical water using the method for batch (-type).Super/subcritical fluid techniques with raw material is cheap, removal process cleanliness without any pollution, reclaim that obtained CF surfaces are clean and more excellent etc. advantage of performance as a kind of novel recovery method, but super critical condition requires harsher.Most of supercritical fluid requires HTHP, and the requirement to consersion unit is higher and involves great expense, and safety coefficient is low.In a word, supercritical fluid technique reclaims thermoset ting resin composite and also rests on laboratory stage, and industrialization amplification is remained many problem of.
Above-mentioned all methods are the recovery methods for existing composite resin.In view of thermosetting resin insoluble insoluble characteristic in itself, there is researcher [Bowman recently
C N, et al.Angew Chem Int Ed, 2012,51:4 272–4 274;Montarnal D, et al.Science 2011,334:965–968;Amamoto Y, et al.Angew Chem Int
Ed, 2011,50:1
660 –1 663; Wojtecki
R J, et al.Nat
Mater, 2011,10:14-27.] designed from source, active covalent bond is introduced on EP, under the effect of the external conditions such as light, heat, irradiation, the fracture and restructuring of active covalent bond are realized, EP Reshapables and reprocessing ability is assigned, this provides a new thinking for the recovery of composite, but the type limitation of active covalent bond is than larger, reshaping condition requires also harsher, therefore this work only rests on theoretical research stage at present, and distance applications are had got long long way to go.
In late September, 2013, project team of college of materials science and engineering Zhao Chong armies of East China University of Science and Boeing's official signature cooperation agreement, joint exploration carries out thermosetting polymer base carbon fibre using heliotechnics strengthens composite（CFRP）The variation route that middle carbon fibre material is reclaimed.
It is that composite recycling in recent years conducts a research at most that material, which is recycled with energy regenerating method, is also a kind of most potential processing method.Its handling principle is:Under the conditions of anoxic or relatively hypoxia, by high-temperature decomposition, liquefaction bed process, hydrogenization method, chemical degradation method (such as alcoholysis, glycolysis) heat, chemical action, organic macromolecule material in mixture is decomposed into the liquid (oil) that can do fuel, gaseous state (hydrocarbon) small molecule or monomer, the processing gains such as remaining staple fibre are then separated again.
In summary, every kind of recovery method has its advantage, also there is unavoidable shortcoming.Because composite structure is different, resin matrix used also varies, and can solve the problems, such as the recovery of all composites without any method, it is therefore necessary to according to the characteristics of composite itself, develop suitable system scheme, solve the problems, such as the recovery of each class material.Many countries, especially European and American developed countries, have put into effect many related decrees handled on thermosetting resin and its composite, have forbidden handling these solid waste using having environment the method for potential hazard in the world.On the whole, composite recovery technology necessarily develops towards the direction of environmental protection, low energy consumption, low corrosion, and require recovery product can high level recycle, meet the requirement of sustainable development.
The content of the invention
The present invention relates to carbon fibre reinforced composite recovery and reuse of waste field, specifically a kind of carbon fibre reinforced composite castoff regenerative carbon fiber method is a kind of low energy consumption, the new method of large scale CFRP high efficiente callbacks.It is carbon fibre reinforced composite to be immersed in degraded bleeding agent under normal temperature and pressure, resin matrix is set to be swelled degraded, pass through centrifugation, filtering or membrane separating method go out carbon fiber or its filler, recycling carbon fibre or its filler are made after scrubbed drying, the invention aims to solve the problems, such as carbon fibre reinforced composite degraded and the regeneration of high value carbon fiber, the advantage of this method is the composite scrap thing of Treatment of Carbon enhancing at normal temperatures and pressures, the separation and the regeneration of carbon fiber of carbon fiber and resin matrix are realized under the normal temperature and pressure of almost Non-energy-consumption, technological process is simple, preprocessing need not be carried out, large-size carbon fibre reinforced composites can directly be handled, save expense that is broken and crushing, it need not be heated, reduce energy consumption, it need not be pressurizeed, reduce process equipment requirement, and recycling carbon fibre or filler are not corroded, fibre damage is small, surface treatment is clean complete, fully achieve the regeneration of carbon fibre material and recycling for carbon fibre reinforced composite.
A kind of carbon fibre reinforced composite castoff regenerative carbon fiber method.
1. a kind of carbon fibre reinforced composite castoff regenerative carbon fiber method, it is characterized in that carrying out in accordance with the following steps：（1）The leftover bits produced during carbon fibre composite is produced or its waste gathering produced using process, removal of impurities, washing drying；（2）It will be soaked 1-300 hours at 0-100 °C in carbon fibre composite discarded object immersion infiltration degradation agent；（3）The complete carbon fibre reinforced composite discarded object mixture of degraded will have been permeated to be separated by filtration, centrifuge or UF membrane obtains carbon fiber and is impregnated with waste liquid；（4）Separating obtained carbon fiber is further washed with solvent, recycling carbon fibre is dried to obtain；（5）Infiltration waste liquid can be neutralized with alkali and be used as coating or the additive of adhesive（Quality is than consumption 5-30%）Using or add in clay, gypsum, quick lime, white lime, quartz, cement or its mixture（Mass ratio of each component example 10-70%）, stir, ball milling sieves, be pressed into base, sintering prepares building heat preservation or ornament materials under 50-200 °C of drying or 1100-1200 °C；（6）Step（3）Gained, which permeates waste liquid and carbon fiber mixture, to be separated, and directly as filler, bonding agent and pore creating material composition, example 5-30% in mass ratio is added in clay, gypsum, quick lime, white lime, quartz, cement or its mixture（Mass ratio of each component example 10-70%）, compressing after stirring, ball milling sieves, is pressed into base, sintering prepares fibre reinforced building heat preservation or ornament materials under 50-200 °C of drying or 1100-1200 °C.
2. a kind of carbon fibre reinforced composite castoff regenerative carbon fiber method according to claim 1, it is characterised in that described carbon fibre composite discarded object refers to come from the junk produced after the substandard product in carbon fibre composite production process, the leftover bits in process or actual use.
3. a kind of carbon fibre reinforced composite castoff regenerative carbon fiber method according to claim 1, it is characterized in that described carbon fibre composite discarded object refers to carbon-fiber-reinforced polyester composite material, carbon-fibre reinforced epoxy resin composite material, carbon fiber reinforced phenol formaldehyde resin composite, fibre reinforced polystyrene resin composite, fibre reinforced acetal resin composite material, fibre reinforced polyimide resin composite material, fibre reinforced polyaryl sulphone composite, fibre reinforced polyphenylene sulfide resin composite material, fibre reinforced polyethersulfone resin composite, fibre reinforced polyurethane resin composite, fibre reinforced polyphenylene sulfide resin composite material or carbon fiber reinforced polyetheretherketonecomposite composite material.
4. a kind of carbon fibre reinforced composite castoff regenerative carbon fiber method according to claim 1, it is characterised in that the infiltration degradation agent refers to hydrobromic acid, hydroiodic acid, the concentrated sulfuric acid, hydrochloric acid, phosphoric acid, potassium bichromate, sodium dichromate, potassium permanganate, sodium permanganate, manganese dioxide, vanadic anhydride, hydrogen peroxide, sodium peroxide, tetrahydrofuran, dioxane, C2-C15 alkyl ethers or aromatic ether, petroleum ether, ethyl acetate, butyl acetate；The mixture of one kind or 2-10 kinds in acetone, butanone, cyclopentanone, cyclohexanone, diethylene glycol (DEG), triethylene glycol, chloroform, AEO, APES, polyethers, mass ratio of each component example is 1-99%.
5. a kind of carbon fibre reinforced composite castoff regenerative carbon fiber method according to claim 1, it is characterized in that the further washer solvent of isolated carbon fiber refers to the mixture of a kind in water, ethanol, ethylene glycol, acetone, tetrahydrofuran, ether, propyl ether, butyl ether, petroleum ether, toluene or 2-10 solvents, mass ratio of each component example is 1-99%.
6. a kind of carbon fibre reinforced composite castoff regenerative carbon fiber method according to claim 1, it is characterised in that the infiltration waste liquid can add the additive as coating or adhesive after 1 in sodium hydroxide, potassium hydroxide, calcium hydroxide, magnesium hydroxide, sodium oxide molybdena, potassium oxide, calcium oxide, magnesia kind or the neutralization of 2-8 kinds raw mixture and use.
7. a kind of carbon fibre reinforced composite castoff regenerative carbon fiber method according to claim 1, it is characterised in that described useless penetrating fluid can add claim（6）Described alkali is mixed after neutralizing with a kind in clay, gypsum, quick lime, white lime, cement, quartz or 2-5 kinds, mass ratio of each component example is 10-70%, stir, ball milling sieving, be pressed into base, 50-200 °C dry or 1100-1200 °C under sintering prepare insulating brick, floor tile, thermal insulation tile or the dalle of building heat preservation or ornament materials.
8. a kind of carbon fibre reinforced composite castoff regenerative carbon fiber method according to claim 1, it is characterised in that the step described in claim 1（3) gained infiltration waste liquid and carbon fiber mixture can not be separated, directly as filler, bonding agent and pore creating material composition, in mass ratio example（5-30%）Add in clay, gypsum, quick lime, white lime, cement or its mixture, each component ratio is 10-70%, compressing after stirring, ball milling sieves, is pressed into base, sintering prepares fibre reinforced building heat preservation or ornament materials under 50-200 °C of drying or 1100-1200 °C.
9. a kind of carbon fibre reinforced composite castoff regenerative carbon fiber method according to claim 1, it is characterised in that described recycling carbon fibre and be impregnated with waste liquid separation method and refer to be separated by filtration, centrifuge or one kind in UF membrane or 2-3 kinds method are shared.
The economic benefit of the present invention is fairly obvious, carbon fibre reinforced composite is reclaimed in normal temperature and pressure depolymerization, required equipment cost is low, continuous processing can be carried out to large scale again, significantly reduce the cost for reclaiming discarded carbon fibre reinforced composite, while the discarded carbon fibre reinforced composite material stacking of reduction and inventory carrying cost, and reduce the limitation in terms of the use to material after recovery.Carbon fiber is high energy consumption, high value added product, it is a kind of high-end science and technology product for being related to national economy every field, the efficient circulation of carbon fibre reinforced composite is utilized, energy-saving and emission-reduction can be promoted, realize environmental benefit, the unification of Social benefit and economic benefit, whole processing procedure, benign cycle is entered from Technological Economy operation angle, waste material is turned into recycling material and green material.
Brief description of the drawings
Fig. 1 carbon fibre reinforced composite reclaimings carbon fiber, the technological process of filler.
The useless carbon fibre reinforced composite plate reclaiming carbon fiber preform internal layer pictures of Fig. 2.
Embodiment
Carbon fibre reinforced composite is recycled, and recycling carbon fibre technical process is as shown in Figure 1.
Embodiment
1
Carbon-fibre reinforced epoxy resin composite material is recycled.
Carbon-fibre reinforced epoxy resin composite material pipe is put into the glass guide channel of corresponding size, the mixed liquor of the concentrated sulfuric acid, APES and tetrahydrofuran is added（9:1:1）, carbon fibre reinforced composite is submerged, normal temperature is static or stirring condition under be impregnated with after 24 hours, carbon fiber is taken out in filtering or centrifugation, wash repeatedly to clean, dried naturally or heating, drying with clear water, obtains recycling carbon fibre, and harvesting is standby；It is impregnated with waste liquid and tetrahydrofuran is distilled off, adds after sodium hydroxide neutralization, used as the additive of adhesive or coating.
Embodiment
2
Carbon-fibre reinforced epoxy resin composite material is recycled.
Carbon-fibre reinforced epoxy resin composite material pipe is put into the glass guide channel of corresponding size, the mixed liquor of the concentrated sulfuric acid, petroleum ether and polyethylene glycol 400 is added（7:2:2）Carbon fibre reinforced composite is submerged, normal temperature is static or stirring condition under be impregnated with after 48 hours, carbon fiber is taken out in filtering or centrifugation, wash repeatedly to clean, dried naturally or heating, drying with clear water, obtains recycling carbon fibre, and harvesting is standby；It is impregnated with waste liquid to be distilled off after petroleum ether, adds after calcium hydroxide neutralization, used as the additive of adhesive or coating.
Embodiment
3
Carbon-fibre reinforced epoxy resin composite material is recycled.
Carbon-fibre reinforced epoxy resin composite material pipe is put into the glass guide channel of corresponding size, the mixed liquor of the concentrated sulfuric acid, AEO and dioxane is added（6:5:1）, carbon fibre reinforced composite is submerged, normal temperature is static or stirring condition under be impregnated with after 36 hours, carbon fiber is taken out in filtering or centrifugation, wash repeatedly to clean, dried naturally or heating, drying with clear water, obtains recycling carbon fibre, and harvesting is standby；It is impregnated with waste liquid to be distilled off after dioxane, adds calcium oxide neutralization and used as the additive of adhesive or coating.
Embodiment
4
Carbon-fibre reinforced epoxy resin composite material is recycled.
Carbon-fibre reinforced epoxy resin composite material pipe is put into the glass guide channel of corresponding size, the concentrated sulfuric acid, tetrahydrofuran, the mixed liquor of dioxane is added（8:1:1）, carbon fibre reinforced composite is submerged, normal temperature is static or stirring condition under be impregnated with after 72 hours, carbon fiber is taken out in filtering or centrifugation, wash repeatedly to clean, dried naturally or heating, drying with clear water, obtains recycling carbon fibre, and harvesting is standby；It is impregnated with waste liquid and tetrahydrofuran and dioxane is distilled off, adds after sodium hydroxide neutralization, used as the additive of adhesive or coating.
Embodiment
5
Carbon-fibre reinforced epoxy resin composite material is recycled.
Carbon-fibre reinforced epoxy resin composite material pipe is put into the glass guide channel of corresponding size, the mixed liquor of the concentrated sulfuric acid, tetrahydrofuran and ether is added（9:1:1）, carbon fibre reinforced composite is submerged, normal temperature is static or stirring condition under be impregnated with after 22 hours, carbon fiber is taken out in filtering or centrifugation, wash repeatedly to clean, dried naturally or heating, drying with clear water, obtains recycling carbon fibre, and harvesting is standby；It is impregnated with waste liquid and tetrahydrofuran and ether is distilled off, adds after potassium hydroxide neutralization, used as the additive of adhesive or coating.
Embodiment
6
Carbon-fibre reinforced epoxy resin composite material is recycled.
Carbon-fibre reinforced epoxy resin composite material pipe is put into the glass guide channel of corresponding size, the concentrated sulfuric acid, APES, the mixed liquor of triethylene glycol is added（9:1:2）, carbon fibre reinforced composite is submerged, normal temperature is static or stirring condition under be impregnated with after 32 hours, carbon fiber is taken out in filtering or centrifugation, wash repeatedly to clean, dried naturally or heating, drying with clear water, obtains recycling carbon fibre, and harvesting is standby；It is impregnated with waste liquid to add after magnesia neutralization, is used as the additive of adhesive or coating.
Embodiment
7
Carbon-fibre reinforced epoxy resin composite material is recycled.
Carbon-fibre reinforced epoxy resin composite material pipe is put into the glass guide channel of corresponding size, the concentrated sulfuric acid, tetrahydrofuran, the mixed liquor of polyethylene glycol-800 is added（8:1:1）, carbon fibre reinforced composite is submerged, normal temperature is static or stirring condition under be impregnated with after 8 hours, carbon fiber is taken out in filtering or centrifugation, wash repeatedly to clean, dried naturally or heating, drying with clear water, obtains recycling carbon fibre, and harvesting is standby；It is impregnated with waste liquid and tetrahydrofuran is distilled off, adds after sodium hydroxide neutralization, used as the additive of adhesive or coating.
Embodiment
8
Carbon-fibre reinforced epoxy resin composite material is recycled.
Carbon-fibre reinforced epoxy resin composite material kettle is put into the stainless steel tank of corresponding size, the concentrated sulfuric acid, tetrahydrofuran, the mixed liquor of toluene is added（9:1:1）, carbon fibre reinforced composite is submerged, normal temperature is static or stirring condition under be impregnated with after 38 hours, carbon fiber is taken out in filtering or centrifugation, wash repeatedly to clean, dried naturally or heating, drying with clear water, obtains recycling carbon fibre, and harvesting is standby；It is impregnated with waste liquid and tetrahydrofuran and toluene is distilled off, adds lime, gypsum
(20:30:50) stir, ball milling sieves, is pressed into base, is fibre reinforced plasterboard in 200 °C of drying and mouldings.
Embodiment
9
Carbon-fibre reinforced epoxy resin composite material is recycled.
Carbon-fibre reinforced epoxy resin composite material pipe is put into the glass guide channel of corresponding size, hydrobromic acid, the mixed liquor of dioxane（4:5:1）, carbon fibre reinforced composite is submerged, is impregnated with stirring condition after 72 hours, carbon fiber is taken out in filtering or centrifugation, is washed repeatedly to clean, dried naturally or heating, drying with clear water, obtains recycling carbon fibre, receives and keeps standby；It is impregnated with waste liquid and dioxane is distilled off, adds after sodium hydroxide neutralization, used as the additive of adhesive or coating.
Embodiment
10
Carbon-fibre reinforced epoxy resin composite material is recycled.
Carbon-fibre reinforced epoxy resin composite material tank is put into the glass guide channel of corresponding size, hydroiodic acid, tetrahydrofuran, the mixed liquor of dioxane is added（5:4:1）, carbon fibre reinforced composite is submerged, normal temperature is static or stirring condition under be impregnated with after 68 hours, carbon fiber is taken out in filtering or centrifugation, wash repeatedly to clean, dried naturally or heating, drying with clear water, obtains recycling carbon fibre, and harvesting is standby；It is impregnated with waste liquid and tetrahydrofuran and dioxane is distilled off, adds after potassium oxide neutralization, used as the additive of adhesive or coating.
Embodiment
11
Carbon-fibre reinforced epoxy resin composite material is recycled.
Carbon-fibre reinforced epoxy resin composite material sheet material is put into the glass guide channel of corresponding size, hydrobromic acid, tetrahydrofuran, the mixed liquor of polyethylene glycol 400 is added（5:3:3）, carbon fibre reinforced composite is submerged, normal temperature is static or stirring condition under be impregnated with after 72 hours, carbon fiber is taken out in filtering or centrifugation, wash repeatedly to clean, dried naturally or heating, drying with clear water, obtains recycling carbon fibre, and harvesting is standby；It is impregnated with waste liquid and tetrahydrofuran is distilled off, adds after potassium hydroxide neutralization, used as the additive of adhesive or coating.
Embodiment
12
Carbon-fibre reinforced epoxy resin composite material is recycled.
Carbon-fibre reinforced epoxy resin composite material bar is put into the glass guide channel of corresponding size, hydroiodic acid, tetrahydrofuran, the mixed liquor of triethylene glycol is added（6:3:1）, carbon fibre reinforced composite is submerged, normal temperature is static or stirring condition under be impregnated with after 72 hours, carbon fiber is taken out in filtering or centrifugation, wash repeatedly to clean, dried naturally or heating, drying with clear water, obtains recycling carbon fibre, and harvesting is standby；It is impregnated with waste liquid and tetrahydrofuran is distilled off, adds after sodium oxide molybdena neutralization, used as the additive of adhesive or coating.
Embodiment
13
Carbon-fibre reinforced epoxy resin composite material is recycled.
Carbon-fibre reinforced epoxy resin composite material pipe is put into the glass guide channel of corresponding size, hydrobromic acid, toluene, the mixed liquor of dioxane is added（8:1:1）, carbon fibre reinforced composite is submerged, normal temperature is static or stirring condition under be impregnated with after 148 hours, carbon fiber is taken out in filtering or centrifugation, wash repeatedly to clean, dried naturally or heating, drying with clear water, obtains recycling carbon fibre, and harvesting is standby；It is impregnated with waste liquid and toluene and dioxane is distilled off, adds after sodium hydroxide neutralization, used as the additive of adhesive or coating.
Embodiment
14
Carbon-fibre reinforced epoxy resin composite material is recycled.
Carbon-fibre reinforced epoxy resin composite material wind electricity blade is put into the stainless steel tank of corresponding size, the concentrated sulfuric acid is added to submerge carbon fibre reinforced composite, normal temperature is static or stirring condition under be impregnated with after 45 hours, carbon fiber is taken out in filtering or centrifugation, washed with clear water repeatedly to clean, naturally dry or heating, drying, obtain recycling carbon fibre, receive and keep standby；It is impregnated with waste liquid and adds lime, gypsum and cement
(10:20:30:40) stir, ball milling sieves, is pressed into base, is plasterboard in 120 °C of drying and mouldings.
Embodiment
15
Carbon-fibre reinforced epoxy resin composite material is recycled.
Carbon-fibre reinforced epoxy resin composite material bar is put into the ceramic trough of corresponding size, the concentrated sulfuric acid, the mixed liquor of potassium bichromate is added（8:2）Carbon fibre reinforced composite is submerged, normal temperature is static or stirring condition under be impregnated with after 82 hours, carbon fiber is taken out in filtering or centrifugation, is washed repeatedly to clean, dried naturally or heating, drying with clear water, obtains recycling carbon fibre, receives and keeps standby；It is impregnated with waste liquid and adds lime, cement mixing uniform (25:30:45) stir, ball milling sieves, is pressed into base, is paving brick in 1200 °C of sinter moldings.
Embodiment
16
Carbon-fibre reinforced epoxy resin composite material is recycled.
Carbon-fibre reinforced epoxy resin composite material wind electricity blade is put into the stainless steel tank of corresponding size, the concentrated sulfuric acid is added to submerge carbon fibre reinforced composite, normal temperature is static or stirring condition under be impregnated with after 90 hours, carbon fiber is taken out in filtering or centrifugation, washed with clear water repeatedly to clean, naturally dry or heating, drying, obtain recycling carbon fibre, receive and keep standby；It is impregnated with waste liquid and adds clay, quartz and stir (20:30:50) stir, ball milling sieves, is pressed into base, fires building heat preservation bricks at 1200 °C.
Embodiment
17
Carbon-fibre reinforced epoxy resin composite material is recycled.
Carbon-fibre reinforced epoxy resin composite material wind electricity blade is put into the stainless steel tank of corresponding size, the concentrated sulfuric acid is added to submerge carbon fibre reinforced composite, normal temperature is static or stirring condition under be impregnated with after 98 hours, carbon fiber and liquid mixture are obtained, lime, gypsum and cement (20 is added:30:20:30) stir, ball milling sieves, is pressed into base, is fibre reinforced plasterboard in 120 °C of drying and mouldings.
Embodiment
18
Carbon-fibre reinforced epoxy resin composite material is recycled.
Carbon-fibre reinforced epoxy resin composite material wind electricity blade is put into the stainless steel tank of corresponding size, the concentrated sulfuric acid and potassium permanganate is added（9:1）Mix reagent, carbon fibre reinforced composite is submerged, normal temperature is static or stirring condition under be impregnated with after 85 hours, obtain carbon fiber and liquid mixture, add lime with after cement
(20:30:50) stir, ball milling sieves, is pressed into base, formed by a firing at 1200 °C as road brick.
Embodiment
19
Fibre reinforced unsaturated polyester composite is recycled.
Fibre reinforced unsaturated polyester compound walking spa- cial system is put into the metal trough of corresponding size, hydrobromic acid, the mixed liquor of dioxane is added（9:1）Carbon fibre reinforced composite is submerged, normal temperature is static or stirring condition under be impregnated with after 72 hours, carbon fiber is taken out in filtering or centrifugation, is washed repeatedly to clean, dried naturally or heating, drying with clear water, obtains recycling carbon fibre, receives and keeps standby；Waste liquid is impregnated with to be distilled off after dioxane adding clay, cement (15:35:50) stir, ball milling sieves, is pressed into base, fires building heat preservation bricks at 1200 °C.
Embodiment
20
Fibre reinforced unsaturated polyester composite is recycled.
Fibre reinforced unsaturated polyester composite material pipe is put into the glass guide channel of corresponding size, the concentrated sulfuric acid, the mixed liquor of tetrahydrofuran is added（8:2）Carbon fibre reinforced composite is submerged, normal temperature is static or stirring condition under be impregnated with after 96 hours, carbon fiber is taken out in filtering or centrifugation, is washed repeatedly to clean, dried naturally or heating, drying with clear water, obtains recycling carbon fibre, receives and keeps standby；It is impregnated with waste liquid to be distilled off after tetrahydrofuran, adds lime and after cement (20:30:50) stir, ball milling sieves, is pressed into base, formed by a firing at 1200 °C as paving brick.
Embodiment
21
Fibre reinforced unsaturated polyester composite is recycled.
Fibre reinforced unsaturated polyester composite material wind-power blade is put into the glass guide channel of corresponding size, the concentrated sulfuric acid is added to submerge carbon fibre reinforced composite, normal temperature is static or stirring condition under be impregnated with after 120 hours, carbon fiber is taken out in filtering or centrifugation, washed with clear water repeatedly to clean, naturally dry or heating, drying, obtain recycling carbon fibre, receive and keep standby；It is impregnated with waste liquid and adds lime, gypsum and cement
(20:30:20:30) stir, ball milling sieves, is pressed into base, is plasterboard in 120 °C of drying and mouldings.
Embodiment
22
Fibre reinforced unsaturated polyester composite is recycled.
Fibre reinforced unsaturated polyester composite tanks are put into the stainless steel tank of corresponding size, the concentrated sulfuric acid, the mixed liquor of polyethylene glycol 400 is added（9:1）Carbon fibre reinforced composite is submerged, normal temperature is static or stirring condition under be impregnated with after 88 hours, carbon fiber is taken out in filtering or centrifugation, is washed repeatedly to clean, dried naturally or heating, drying with clear water, obtains recycling carbon fibre, receives and keeps standby；It is impregnated with waste liquid and adds after lime, cement
(20:40:40) stir, ball milling sieves, is pressed into base, fires paving bricks at 1200 °C.
Embodiment
23
Fibre reinforced unsaturated polyester composite is recycled.
Fibre reinforced unsaturated polyester composite material sheet is put into the glass guide channel of corresponding size, the concentrated sulfuric acid, tetrahydrofuran, the mixed liquor of dioxane is added（8:2:1）Carbon fibre reinforced composite is submerged, normal temperature is static or stirring condition under be impregnated with after 52 hours, carbon fiber is taken out in filtering or centrifugation, is washed repeatedly to clean, dried naturally or heating, drying with clear water, obtains recycling carbon fibre, receives and keeps standby；It is impregnated with waste liquid to be distilled off after tetrahydrofuran and dioxane, adds lime, gypsum and cement
(10:20:30:40) stir, ball milling sieves, is pressed into base, is plasterboard in 120 °C of drying and mouldings.
Embodiment
24
Fibre reinforced unsaturated polyester composite is recycled.
Fibre reinforced unsaturated polyester composite material sheet is put into the metal trough of corresponding size, the concentrated sulfuric acid, the mixed liquor of diethylene glycol (DEG) is added（8:2）Carbon fibre reinforced composite is submerged, normal temperature is static or stirring condition under be impregnated with after 84 hours, carbon fiber is taken out in filtering or centrifugation, wash repeatedly to clean, dried naturally or heating, drying with clear water, obtains recycling carbon fibre, and harvesting is standby；It is impregnated with waste liquid and adds lime and after cement (20:30:50) stir, ball milling sieves, is pressed into base, fires paving bricks at 1200 °C.
Embodiment
25
Fibre reinforced unsaturated polyester composite is recycled.
Fibre reinforced unsaturated polyester composite material sheet is put into the glass guide channel of corresponding size, the concentrated sulfuric acid, the mixed liquor of hydrochloric acid is added（8:2）Carbon fibre reinforced composite is submerged, normal temperature is static or stirring condition under be impregnated with after 86 hours, obtain recycling carbon fibre and be impregnated with liquid mixture, add lime, quartz and cement
(10:20:30:40) stir, ball milling sieves, is pressed into base, is plasterboard in 120 °C of drying and mouldings.
Embodiment
26
Fibre reinforced unsaturated polyester composite is recycled.
Fibre reinforced unsaturated polyester composite material sheet is put into the glass guide channel of corresponding size, the concentrated sulfuric acid, hydrochloric acid, the mixed liquor of triethylene glycol is added（9:1:1）Carbon fibre reinforced composite is submerged, normal temperature is static or stirring condition under be impregnated with after 84 hours, carbon fiber is taken out in filtering or centrifugation, wash repeatedly to clean, dried naturally or heating, drying with clear water, obtains recycling carbon fibre, and harvesting is standby；It is impregnated with waste liquid and adds quartz, clay (20:30:50) stir, ball milling sieves, is pressed into base, fires building heat preservation bricks at 1200 °C.
Embodiment
27
Fibre reinforced unsaturated polyester composite is recycled.
Fibre reinforced unsaturated polyester composite material sheet is put into the stainless steel tank of corresponding size, the concentrated sulfuric acid, tetrahydrofuran, the mixed liquor of triethylene glycol is added（9:2:1）Carbon fibre reinforced composite is submerged, normal temperature is static or stirring condition under be impregnated with after 99 hours, carbon fiber is taken out in filtering or centrifugation, wash repeatedly to clean, dried naturally or heating, drying with clear water, obtains recycling carbon fibre, and harvesting is standby；It is impregnated with waste liquid to be distilled off after tetrahydrofuran, adds clay, lime (20:60:20) stir, ball milling sieves, is pressed into base, fires building heat preservation bricks at 1200 °C.
Embodiment
28
Fibre reinforced unsaturated polyester composite is recycled.
Fibre reinforced unsaturated polyester compound walking spa- cial system is put into the glass guide channel of corresponding size, the concentrated sulfuric acid, tetrahydrofuran, the mixed liquor of acetone is added（9:2:1）Carbon fibre reinforced composite is submerged, normal temperature is static or stirring condition under be impregnated with after 58 hours, carbon fiber is taken out in filtering or centrifugation, wash repeatedly to clean, dried naturally or heating, drying with clear water, obtains recycling carbon fibre, and harvesting is standby；It is impregnated with waste liquid to be distilled off after tetrahydrofuran and acetone, adds quartz, cement mixing uniform (20:30:50) stir, be used as paving cement mortar.
Embodiment
29
Fibre reinforced unsaturated polyester composite is recycled.
Unsaturated polyester wind electricity blade is put into the glass guide channel of corresponding size, the concentrated sulfuric acid and APES mixed liquor is added（8:2）, carbon fibre reinforced composite is submerged, normal temperature is static or stirring condition under be impregnated with after 20 hours, obtain recycling carbon fibre and be impregnated with liquid mixture, add lime, gypsum and cement
(10:20:30:40) stir, ball milling sieves, is pressed into base, is plasterboard in 150 °C of drying and mouldings.
Embodiment
30
Fibre reinforced unsaturated polyester composite is recycled.
Fibre reinforced unsaturated polyester compound walking spa- cial system is put into the glass guide channel of corresponding size, hydrobromic acid, tetrahydrofuran, the mixed liquor of triethylene glycol is added（9:2:1）Carbon fibre reinforced composite is submerged, normal temperature is static or stirring condition under be impregnated with after 98 hours, carbon fiber is taken out in filtering or centrifugation, wash repeatedly to clean, dried naturally or heating, drying with clear water, obtains recycling carbon fibre, and harvesting is standby；It is impregnated with waste liquid and tetrahydrofuran is distilled off, adds after sodium hydroxide neutralization, used as the additive of adhesive or coating.
Embodiment
31
Fibre reinforced unsaturated polyester composite is recycled.
Fibre reinforced unsaturated polyester composite material sheet is put into the glass guide channel of corresponding size, hydroiodic acid, tetrahydrofuran, the mixed liquor of triethylene glycol is added（9:2:1）Carbon fibre reinforced composite is submerged, be heated to reflux or stirring condition under be impregnated with after 84 hours, carbon fiber is taken out in filtering or centrifugation, wash repeatedly to clean, dried naturally or heating, drying with clear water, obtains recycling carbon fibre, and harvesting is standby；It is impregnated with waste liquid and tetrahydrofuran is distilled off, adds after sodium hydroxide neutralization, used as the additive of adhesive or coating.
Embodiment
32
Carbon fiber reinforced phenol formaldehyde resin composite is recycled.
Carbon fiber reinforced phenol formaldehyde resin composite material sheet is put into the glass guide channel of corresponding size, the concentrated sulfuric acid, butanone, the mixed liquor of triethylene glycol is added（9:2:1）Carbon fibre reinforced composite is submerged, be heated to reflux or stirring condition under be impregnated with after 84 hours, carbon fiber is taken out in filtering or centrifugation, wash repeatedly to clean, dried naturally or heating, drying with clear water, obtains recycling carbon fibre, and harvesting is standby；It is impregnated with waste liquid to be distilled off after butanone, adds after calcium oxide neutralization, used as the additive of adhesive or coating.
Embodiment
33
Carbon fiber reinforced phenol formaldehyde resin composite is recycled.
Carbon fiber reinforced phenol formaldehyde resin composite material sheet is put into the glass guide channel of corresponding size, the concentrated sulfuric acid, tetrahydrofuran, the mixed liquor of toluene is added（8:1:1）Carbon fibre reinforced composite is submerged, be heated to reflux or stirring condition under be impregnated with after 92 hours, carbon fiber is taken out in filtering or centrifugation, wash repeatedly to clean, dried naturally or heating, drying with clear water, obtains recycling carbon fibre, and harvesting is standby；It is impregnated with waste liquid to be distilled off after tetrahydrofuran and toluene, adds lime, gypsum and cement
(15:25:30:30) stir, ball milling sieves, is pressed into base, is plasterboard in 120 °C of drying and mouldings.
Embodiment
34
Carbon fiber reinforced phenol formaldehyde resin composite is recycled.
Carbon fiber reinforced phenol formaldehyde resin composite material sheet is put into the glass guide channel of corresponding size, the concentrated sulfuric acid, tetrahydrofuran, the mixed liquor of dioxane is added（7:2:1）Carbon fibre reinforced composite is submerged, normal temperature is static or stirring condition under be impregnated with after 92 hours, carbon fiber is taken out in filtering or centrifugation, wash repeatedly to clean, dried naturally or heating, drying with clear water, obtains recycling carbon fibre, and harvesting is standby；It is impregnated with waste liquid to be distilled off after tetrahydrofuran and dioxane, adds clay, cement
(20:30:50) stir, ball milling sieves, is pressed into base, fires building heat preservation bricks at 1200 °C.
Embodiment
35
Carbon fiber reinforced phenol formaldehyde resin composite is recycled.
Carbon fiber reinforced phenol formaldehyde resin composite material sheet is put into the glass guide channel of corresponding size, the concentrated sulfuric acid, hydrochloric acid mixed solution is added（9:1）Carbon fibre reinforced composite is submerged, normal temperature is static or stirring condition under be impregnated with after 92 hours, carbon fiber is taken out in filtering or centrifugation, wash repeatedly to clean, dried naturally or heating, drying with clear water, obtains recycling carbon fibre, and harvesting is standby；It is impregnated with waste liquid and adds quartz, cement
(20:30:50) stir, ball milling sieves, is pressed into base, fires building heat preservation bricks at 1200 °C.
Embodiment
36
Carbon fiber reinforced phenol formaldehyde resin composite is recycled.
Carbon fiber reinforced phenol formaldehyde resin composite material sheet is put into the glass guide channel of corresponding size, the concentrated sulfuric acid, hydrochloric acid mixed solution is added（2:3）Carbon fibre reinforced composite is submerged, normal temperature is static or stirring condition under be impregnated with after 92 hours, carbon fiber is taken out in filtering or centrifugation, wash repeatedly to clean, dried naturally or heating, drying with clear water, obtains recycling carbon fibre, and harvesting is standby；It is impregnated with waste liquid and adds clay, cement (15:35:50) stir, ball milling sieves, is pressed into base, fires building heat preservation bricks at 1200 °C.
Embodiment
37
Carbon fiber reinforced phenol formaldehyde resin composite is recycled.
Carbon fiber reinforced phenol formaldehyde resin composite material sheet is put into the glass guide channel of corresponding size, the concentrated sulfuric acid/chloroform mixed liquor is added（9:1）Carbon fibre reinforced composite is submerged, normal temperature is static or stirring condition under be impregnated with after 92 hours, carbon fiber is taken out in filtering or centrifugation, wash repeatedly to clean, dried naturally or heating, drying with clear water, obtains recycling carbon fibre, and harvesting is standby；It is impregnated with waste liquid to be distilled off after chloroform, adds lime and cement (20:30:50) stir, ball milling sieves, is pressed into base, fires building heat preservation bricks at 1200 °C.
Embodiment
38
Carbon fiber reinforced polyetheretherketonecomposite composite material is recycled.
Carbon fiber reinforced polyetheretherketonecomposite composite material sheet material is put into the glass guide channel of corresponding size, the concentrated sulfuric acid/butyl ether mixed liquor is added（9:1）Carbon fibre reinforced composite is submerged, normal temperature is static or stirring condition under be impregnated with after 90 hours, carbon fiber is taken out in filtering or centrifugation, wash repeatedly to clean, dried naturally or heating, drying with clear water, obtains recycling carbon fibre, and harvesting is standby；It is impregnated with waste liquid to be distilled off after butyl ether, adds lime, gypsum and cement
(10:20:30:40) stir, ball milling sieves, is pressed into base, is plasterboard in 120 °C of drying and mouldings.
Embodiment
39
Carbon fiber reinforced polyetheretherketonecomposite composite material is recycled.
Carbon fiber reinforced polyetheretherketonecomposite composite material sheet material is put into the glass guide channel of corresponding size, the concentrated sulfuric acid is added to submerge carbon fibre reinforced composite, it is impregnated with stirring condition after 80 hours, carbon fiber is taken out in filtering or centrifugation, washed with clear water repeatedly to clean, naturally dry or heating, drying, obtain recycling carbon fibre, receive and keep standby；It is impregnated with waste liquid and adds lime, gypsum and cement
(10:20:30:40) stir, ball milling sieves, is pressed into base, is plasterboard in 160 °C of drying and mouldings.
Embodiment
40
Carbon fiber reinforcement polyimide composite material is recycled.
Carbon fiber reinforcement polyimide composite material sheet material is put into the glass guide channel of corresponding size, the concentrated sulfuric acid/chloroform mixed liquor is added（9:1）Carbon fibre reinforced composite is submerged, normal temperature is static or stirring condition under be impregnated with after 110 hours, carbon fiber is taken out in filtering or centrifugation, wash repeatedly to clean, dried naturally or heating, drying with clear water, obtains recycling carbon fibre, and harvesting is standby；It is impregnated with waste liquid to be distilled off after chloroform, adds lime and after cement (20:30:50) stir, ball milling sieves, is pressed into base, fires paving bricks at 1200 °C.
Embodiment
41
Carbon fiber reinforcement polyimide composite material is recycled.
Carbon fiber reinforcement polyimide composite material sheet material is put into the glass guide channel of corresponding size, the concentrated sulfuric acid is added to submerge carbon fibre reinforced composite, normal temperature is static or stirring condition under be impregnated with after 90 hours, carbon fiber is taken out in filtering or centrifugation, washed with clear water repeatedly to clean, naturally dry or heating, drying, obtain recycling carbon fibre, receive and keep standby；It is impregnated with waste liquid and adds lime and clay (20:30:50) stir, ball milling sieves, is pressed into base, fires building heat preservation bricks at 1200 °C.
Embodiment
42
Fibre reinforced polyformaldehyde composite material is recycled.
Fibre reinforced polyformaldehyde composite material sheet material is put into the glass guide channel of corresponding size, the concentrated sulfuric acid/petroleum ether mixed liquor is added（9:1）Carbon fibre reinforced composite is submerged, normal temperature is static or stirring condition under be impregnated with after 80 hours, carbon fiber is taken out in filtering or centrifugation, wash repeatedly to clean, dried naturally or heating, drying with clear water, obtains recycling carbon fibre, and harvesting is standby；Waste liquid is impregnated with to be distilled off adding lime, gypsum and cement after petroleum ether
(10:20:30:40) stir, ball milling sieves, is pressed into base, is plasterboard in 150 °C of drying and mouldings.
Embodiment
43
Fibre reinforced polyformaldehyde composite material is recycled.
Fibre reinforced polyformaldehyde composite material sheet material is put into the glass guide channel of corresponding size, the concentrated sulfuric acid is added to submerge carbon fibre reinforced composite, normal temperature is static or stirring condition under be impregnated with after 109 hours, carbon fiber is taken out in filtering or centrifugation, washed with clear water repeatedly to clean, naturally dry or heating, drying, obtain recycling carbon fibre, receive and keep standby；It is impregnated with waste liquid and adds lime and cement (20:30:50) stir, ball milling sieves, is pressed into base, fires building heat preservation bricks at 1200 °C.
Embodiment
44
Carbon fiber reinforced polyetheretherketonecomposite composite material is recycled.
Carbon fiber reinforced polyetheretherketonecomposite composite material sheet material is put into the glass guide channel of corresponding size, the concentrated sulfuric acid is added to submerge carbon fibre reinforced composite, normal temperature is static or stirring condition under be impregnated with after 120 hours, carbon fiber is taken out in filtering or centrifugation, washed with clear water repeatedly to clean, naturally dry or heating, drying, obtain recycling carbon fibre, receive and keep standby；It is impregnated with waste liquid and adds lime and gypsum
(15:30:55) stir, ball milling sieves, is pressed into base, is plasterboard in 120 °C of drying and mouldings.
Embodiment
45
Carbon fiber reinforced polyetheretherketonecomposite composite material is recycled.
Carbon fiber reinforced polyetheretherketonecomposite composite material sheet material is put into the glass guide channel of corresponding size, the concentrated sulfuric acid/chloroform mixed liquor is added（9:1）Carbon fibre reinforced composite is submerged, normal temperature is static or stirring condition under be impregnated with after 100 hours, carbon fiber is taken out in filtering or centrifugation, wash repeatedly to clean, dried naturally or heating, drying with clear water, obtains recycling carbon fibre, and harvesting is standby；It is impregnated with waste liquid to be distilled off after chloroform, adds after lime and clay
(20:30:50) stir, ball milling sieves, is pressed into base, fires building heat preservation bricks at 1200 °C.
Embodiment
46
Fibre reinforced polyarylsulfone (PAS) composite is recycled.
Fibre reinforced polyarylsulfone (PAS) composite material sheet is put into the glass guide channel of corresponding size, the concentrated sulfuric acid is added to submerge carbon fibre reinforced composite, normal temperature is static or stirring condition under be impregnated with after 120 hours, carbon fiber is taken out in filtering or centrifugation, washed with clear water repeatedly to clean, naturally dry or heating, drying, obtain recycling carbon fibre, receive and keep standby；It is impregnated with waste liquid and adds lime and gypsum
(20:40:40) stir, ball milling sieves, is pressed into base, is plasterboard in 180 °C of drying and mouldings.
Embodiment
47
Fibre reinforced polyarylsulfone (PAS) composite is recycled.
Fibre reinforced polyarylsulfone (PAS) composite material sheet is put into the glass guide channel of corresponding size, the concentrated sulfuric acid/potassium permanganate mixed liquor is added（9:1）Carbon fibre reinforced composite is submerged, normal temperature is static or stirring condition under be impregnated with after 130 hours, carbon fiber is taken out in filtering or centrifugation, wash repeatedly to clean, dried naturally or heating, drying with clear water, obtains recycling carbon fibre, and harvesting is standby；It is impregnated with waste liquid and adds lime and after clay (20:30:50) stir, ball milling sieves, is pressed into base, fires building heat preservation bricks at 1200 °C.
Embodiment
48
Polyethersulfone Composites Reinforced with Carbon Fiber is recycled.
Polyethersulfone Composites Reinforced with Carbon Fiber sheet material is put into the glass guide channel of corresponding size, the concentrated sulfuric acid, potassium bichromate is added（9:1）Mixture submerges carbon fibre reinforced composite, normal temperature is static or stirring condition under be impregnated with after 120 hours, carbon fiber is taken out in filtering or centrifugation, wash repeatedly to clean, dried naturally or heating, drying with clear water, obtains recycling carbon fibre, and harvesting is standby；It is impregnated with waste liquid and adds lime and gypsum
(10:30:60) stir, ball milling sieves, is pressed into base, is plasterboard in 150 °C of drying and mouldings.
Embodiment
49
Polyethersulfone Composites Reinforced with Carbon Fiber is recycled.
Polyethersulfone Composites Reinforced with Carbon Fiber sheet material is put into the glass guide channel of corresponding size, the concentrated sulfuric acid/tetrahydrofuran mixed liquor is added（9:1）Carbon fibre reinforced composite is submerged, 60 °C static or stirring condition under be impregnated with after 130 hours, carbon fiber is taken out in filtering or centrifugation, wash repeatedly to clean, dried naturally or heating, drying with clear water, obtains recycling carbon fibre, and harvesting is standby；It is impregnated with waste liquid to be distilled off after tetrahydrofuran, adds (15 after quartz, lime, cement:20:30:35) stir, ball milling sieves, is pressed into base, fires building heat preservation bricks at 1200 °C.
Embodiment
50
Carbon fiber enhanced polyphenylene sulfide composite material is recycled.
Carbon fiber enhanced polyphenylene sulfide composite material sheet material is put into the glass guide channel of corresponding size, the concentrated sulfuric acid is added to submerge carbon fibre reinforced composite, stirring condition was impregnated with after 120 hours, carbon fiber is taken out in filtering or centrifugation, washed with clear water repeatedly to clean, naturally dry or heating, drying, obtain recycling carbon fibre, receive and keep standby；Waste liquid is impregnated with to add (10 after quartz, lime, cement:25:30:35) stir, ball milling sieves, is pressed into base, fires building heat preservation bricks at 1200 °C.
Embodiment
51
Carbon fiber enhanced polyphenylene sulfide composite material is recycled.
Carbon fiber enhanced polyphenylene sulfide composite material sheet material is put into the glass guide channel of corresponding size, the concentrated sulfuric acid/potassium bichromate mixed liquor is added（9:1）Carbon fibre reinforced composite is submerged, 50 °C static or stirring condition under be impregnated with after 130 hours, carbon fiber is taken out in filtering or centrifugation, wash repeatedly to clean, dried naturally or heating, drying with clear water, obtains recycling carbon fibre, and harvesting is standby；It is impregnated with waste liquid and adds lime and gypsum
(10:30:60) stir, ball milling sieves, is pressed into base, is plasterboard in 200 °C of drying and mouldings.
Embodiment
52
Fibre reinforced poly styrene composite material is recycled.
Fibre reinforced poly styrene composite material sheet material is put into the glass guide channel of corresponding size, the concentrated sulfuric acid is added to submerge carbon fibre reinforced composite, normal temperature is static or stirring condition under be impregnated with after 120 hours, carbon fiber is taken out in filtering or centrifugation, washed with clear water repeatedly to clean, naturally dry or heating, drying, obtain recycling carbon fibre, receive and keep standby；It is impregnated with waste liquid and adds lime and gypsum
(15:30:55) stir, ball milling sieves, is pressed into base, is plasterboard in 200 °C of drying and mouldings.
Embodiment
53
Fibre reinforced compound polyurethane material is recycled.
Fibre reinforced compound polyurethane material sheet material is put into the glass guide channel of corresponding size, the concentrated sulfuric acid/acetone mixture is added（8:2）Carbon fibre reinforced composite is submerged, 50 °C static or stirring condition under be impregnated with after 110 hours, carbon fiber is taken out in filtering or centrifugation, wash repeatedly to clean, dried naturally or heating, drying with clear water, obtains recycling carbon fibre, and harvesting is standby；It is impregnated with waste liquid to be distilled off after acetone, adds (15 after clay, lime, cement:20:30:35) stir, ball milling sieves, is pressed into base, fires building heat preservation bricks at 1200 °C.
Embodiment
54
Fibre reinforced compound polyurethane material is recycled.
Fibre reinforced compound polyurethane material sheet material is put into the glass guide channel of corresponding size, the concentrated sulfuric acid is added to submerge carbon fibre reinforced composite, normal temperature is static or stirring condition under be impregnated with after 110 hours, carbon fiber is taken out in filtering or centrifugation, washed with clear water repeatedly to clean, naturally dry or heating, drying, obtain recycling carbon fibre, receive and keep standby；Waste liquid is impregnated with to add (15 after quartz, lime, cement:20:25:40) stir, ball milling sieves, is pressed into base, fires building heat preservation bricks at 1200 °C.
Embodiment
55
Fibre reinforced poly styrene composite material is recycled.
Fibre reinforced poly styrene composite material sheet material is put into the glass guide channel of corresponding size, the concentrated sulfuric acid/ether mixed liquor is added（9:1）Carbon fibre reinforced composite is submerged, 50 °C static or stirring condition under be impregnated with after 130 hours, carbon fiber is taken out in filtering or centrifugation, wash repeatedly to clean, dried naturally or heating, drying with clear water, obtains recycling carbon fibre, and harvesting is standby；It is impregnated with waste liquid to be distilled off after ether, adds (10 after quartz, lime, cement:25:30:35) stir, ball milling sieves, is pressed into base, fires building heat preservation bricks at 1200 °C.
Claims (9)
1. a kind of carbon fibre reinforced composite castoff regenerative carbon fiber method, it is characterized in that carrying out in accordance with the following steps：（1) leftover bits produced during carbon fibre composite is produced or its waste gathering produced using process, removal of impurities, washing drying；（2) it will be soaked 1-300 hours at 0-100 °C in carbon fibre composite discarded object immersion infiltration degradation agent；（3) the complete carbon fibre reinforced composite discarded object mixture filtering of degraded, centrifugation or UF membrane will have been permeated to obtain carbon fiber and be impregnated with waste liquid；（4）Separating obtained carbon fiber is further washed with solvent, recycling carbon fibre is dried to obtain；（5）Infiltration waste liquid can be neutralized with alkali and be used as coating or the additive of adhesive（Quality is than consumption 5-30%）Using or add in clay, gypsum, quick lime, white lime, quartz, cement or its mixture（Mass ratio of each component example 10-70%）, stir, ball milling sieves, be pressed into base, sintering prepares building heat preservation or ornament materials under 50-200 °C of drying or 1100-1200 °C；（6）Step（3）Gained, which permeates waste liquid and carbon fiber mixture, to be separated, and directly as filler, bonding agent and pore creating material composition, example 5-30% in mass ratio is added in clay, gypsum, quick lime, white lime, quartz, cement or its mixture（Mass ratio of each component example 10-70%）, compressing after stirring, ball milling sieves, is pressed into base, sintering prepares fibre reinforced building heat preservation or ornament materials under 50-200 °C of drying or 1100-1200 °C.
2. a kind of carbon fibre reinforced composite castoff regenerative carbon fiber method according to claim 1, it is characterised in that described carbon fibre composite discarded object refers to come from the junk produced after the substandard product in carbon fibre composite production process, the leftover bits in process or actual use.
3. a kind of carbon fibre reinforced composite castoff regenerative carbon fiber method according to claim 1, it is characterized in that described carbon fibre composite discarded object refers to carbon-fiber-reinforced polyester composite material, carbon-fibre reinforced epoxy resin composite material, carbon fiber reinforced phenol formaldehyde resin composite, fibre reinforced polystyrene resin composite, fibre reinforced acetal resin composite material, fibre reinforced polyimide resin composite material, fibre reinforced polyaryl sulphone composite, fibre reinforced polyphenylene sulfide resin composite material, fibre reinforced polyethersulfone resin composite, fibre reinforced polyurethane resin composite, fibre reinforced polyphenylene sulfide resin composite material or carbon fiber reinforced polyetheretherketonecomposite composite material.
4. a kind of carbon fibre reinforced composite castoff regenerative carbon fiber method according to claim 1, it is characterized in that the infiltration degradation agent refers to hydrobromic acid, hydroiodic acid, the concentrated sulfuric acid, hydrochloric acid, phosphoric acid, potassium bichromate, sodium dichromate, potassium permanganate, sodium permanganate, manganese dioxide, vanadic anhydride, hydrogen peroxide, sodium peroxide, tetrahydrofuran, dioxane, C2-C15 alkyl ethers or aromatic ether, petroleum ether；Ethyl acetate, butyl acetate；Acetone, butanone, cyclopentanone, cyclohexanone；The mixture of one kind or 2-10 kinds in diethylene glycol (DEG), triethylene glycol, chloroform, AEO, APES, polyethers, mass ratio of each component example is 1-99%.
5. a kind of carbon fibre reinforced composite castoff regenerative carbon fiber method according to claim 1, it is characterized in that the further washer solvent of isolated carbon fiber refers to the mixture of a kind in water, ethanol, ethylene glycol, acetone, tetrahydrofuran, ether, propyl ether, butyl ether, petroleum ether, toluene or 2-10 solvents, mass ratio of each component example is 1-99%.
6. a kind of carbon fibre reinforced composite castoff regenerative carbon fiber method according to claim 1, it is characterised in that the infiltration waste liquid can add the additive as coating or adhesive after 1 in sodium hydroxide, potassium hydroxide, calcium hydroxide, magnesium hydroxide, sodium oxide molybdena, potassium oxide, calcium oxide, magnesia kind or the neutralization of 2-8 kinds raw mixture and use.
7. a kind of carbon fibre reinforced composite castoff regenerative carbon fiber method according to claim 1, it is characterised in that described useless penetrating fluid can add claim（6）Described alkali is mixed after neutralizing with a kind in clay, gypsum, quick lime, white lime, cement, quartz or 2-5 kinds, mass ratio of each component example is 10-70%, stir, ball milling sieving, be pressed into base, 50-200 °C dry or 1100-1200 °C under sintering prepare insulating brick, floor tile, thermal insulation tile or the dalle of building heat preservation or ornament materials.
8. a kind of carbon fibre reinforced composite castoff regenerative carbon fiber method according to claim 1, it is characterised in that the step described in claim 1（3) gained infiltration waste liquid and carbon fiber mixture can not be separated, directly as filler, bonding agent and pore creating material composition, in mass ratio example（5-30%）Add in clay, gypsum, quick lime, white lime, cement or its mixture, each component ratio is 10-70%, compressing after stirring, ball milling sieves, is pressed into base, sintering prepares fibre reinforced building heat preservation or ornament materials under 50-200 °C of drying or 1100-1200 °C.
9. a kind of carbon fibre reinforced composite castoff regenerative carbon fiber method according to claim 1, it is characterised in that described recycling carbon fibre and be impregnated with waste liquid separation method and refer to be separated by filtration, centrifuge or one kind in UF membrane or 2-3 kinds method are shared.
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| CN109836610A (en) * | 2019-02-28 | 2019-06-04 | 北京化工大学 | The method of aramid fiber is recycled in aramid fiber phenolic resin composite |
| CN110857341A (en) * | 2018-08-23 | 2020-03-03 | 北京化工大学 | Degradation solvent and degradation method for carbon fiber resin matrix composite material |
| CN111171373A (en) * | 2020-03-09 | 2020-05-19 | 艾达索高新材料芜湖有限公司 | Recovery method of fiber reinforced composite material |
| CN112024583A (en) * | 2020-09-29 | 2020-12-04 | 西安热工研究院有限公司 | Waste wind power blade recovery method |
| CN112355023A (en) * | 2020-10-16 | 2021-02-12 | 江苏东科复合材料有限公司 | Waste collecting device is used in processing of carbon fiber bonnet |
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| CN111171373A (en) * | 2020-03-09 | 2020-05-19 | 艾达索高新材料芜湖有限公司 | Recovery method of fiber reinforced composite material |
| CN112024583A (en) * | 2020-09-29 | 2020-12-04 | 西安热工研究院有限公司 | Waste wind power blade recovery method |
| CN112355023A (en) * | 2020-10-16 | 2021-02-12 | 江苏东科复合材料有限公司 | Waste collecting device is used in processing of carbon fiber bonnet |
| CN112355023B (en) * | 2020-10-16 | 2022-03-18 | 江苏东科复合材料有限公司 | Waste collecting device is used in processing of carbon fiber bonnet |
| CN113912416A (en) * | 2021-11-10 | 2022-01-11 | 中国航发北京航空材料研究院 | Method for recycling silicon carbide fibers and application |
| CN114226409A (en) * | 2021-12-08 | 2022-03-25 | 江苏安卡新材料科技有限公司 | Fiber recovery process |
| CN115504721A (en) * | 2022-10-28 | 2022-12-23 | 上海交通大学 | Reinforced fly ash-based alkali-activated material and preparation method thereof |
| CN117025274A (en) * | 2023-10-08 | 2023-11-10 | 国能龙源环保有限公司 | Method for preparing solid fuel by using waste carbon fiber wind power blades |
| CN117025274B (en) * | 2023-10-08 | 2023-12-26 | 国能龙源环保有限公司 | Method for preparing solid fuel by using waste carbon fiber wind power blades |
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