CN108099330A - A kind of carbon fiber prepregs and preparation method thereof - Google Patents
A kind of carbon fiber prepregs and preparation method thereof Download PDFInfo
- Publication number
- CN108099330A CN108099330A CN201810021477.6A CN201810021477A CN108099330A CN 108099330 A CN108099330 A CN 108099330A CN 201810021477 A CN201810021477 A CN 201810021477A CN 108099330 A CN108099330 A CN 108099330A
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- carbon fiber
- preparation
- grid cloth
- prepreg
- fiber prepregs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/08—Impregnating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/55—Epoxy resins
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/02—Composition of the impregnated, bonded or embedded layer
- B32B2260/021—Fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/04—Impregnation, embedding, or binder material
- B32B2260/046—Synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0276—Polyester fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/106—Carbon fibres, e.g. graphite fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/58—Cuttability
- B32B2307/581—Resistant to cut
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/32—Polyesters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Fluid Mechanics (AREA)
- Textile Engineering (AREA)
- Physics & Mathematics (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reinforced Plastic Materials (AREA)
Abstract
The present invention provides a kind of carbon fiber prepregs and preparation method thereof, includes the following steps：Conventional carbon fiber prepreg and grid cloth are selected as raw material；Chemical modification processing is carried out to grid cloth, its surface is made to contain a certain number of chemical active radicals；Grid cloth after modification is rolled onto together with carbon fiber prepreg on roller and applies pressure, makes one semi-perimeter of fiber in grid cloth by the resin infiltration in carbon fiber prepreg.The carbon fiber prepregs of present invention porosity when applied to prepreg lamination is low, while interlaminar shear strength is high, and the application in wind electricity blade crossbeam has good result.
Description
Technical field
It is low to be suitable for the big wall thickness of manufacture the present invention relates to a kind of carbon fiber prepregs and preparation method thereof more particularly to one kind
The preparation method of the carbon fiber prepregs of porosity composite material.
Background technology
Carbon fiber is reinforcing material of new generation, has good mechanical property, and corrosion resistance, high temperature resistance are good,
Insoluble and in-expandable in organic solvent, acid, alkali.
In practical applications, carbon fiber is commonly used as reinforcing fiber, and carbon fibre reinforced composite is widely used, has height
The characteristic of intensity, high rigidity and light weight provides high specific strength, than rigidity, to increase the structural strength of opposing product, mitigates
Weight promotes the practicality, and compared with other reinforcing materials, Young's modulus is 3 times of glass fibre or more, is 2 times of left sides of aramid fiber
It is right；Carbon fiber resin composite material tensile strength generally can reach 7~9 times of steel, and specific strength is tens times of steel, specific modulus
Than steel higher.Carbon fibre reinforcement has been widely used for aerospace, telecommunications, vehicle naval vessel, medical instrument at present
Etc. military projects or civilian various fields, such as：Wind-powered electricity generation crossbeam, automobile frame, barge etc. all have using carbon fiber-reinforced resin
Composite material.
In actual use, 70% by way of carbon fiber prepreg the above are being realized, especially for carbon fiber at present
Applied in wind electricity blade, carbon fiber beam is the important composition component of wind electricity blade, can spread carbon fiber prepreg by layer
Mode obtains, but general carbon fiber prepreg, in laying, interlayer compares absent-mindedness, and porosity is high, in this of carbon fiber beam
In the high stress component of sample, porosity height is reduction mechanical performance the defects of point, therefore urgent need one kind can reduce interlayer
The preparation method of the carbon fiber prepreg of porosity.
The content of the invention
In order to solve the above technical problems, the present invention provides a kind of carbon fiber prepregs and preparation method thereof, applied to pre-
Porosity is low during leaching material lamination, while interlaminar shear strength is high.
The present invention adopts the following technical scheme that：
A kind of preparation method of carbon fiber prepregs, includes the following steps：
S1, conventional carbon fiber prepreg and grid cloth are selected as raw material；
S2, chemical modification processing is carried out to grid cloth, its surface is made to contain a certain number of chemical active radicals；
S3, the grid cloth in step S2 is rolled onto together with carbon fiber prepreg on roller applies pressure, make in grid cloth
One semi-perimeter of fiber is by the resin infiltration in carbon fiber prepreg.
Preferably, the carbon fiber prepreg in step S1 is formed by carbon fiber and thermosetting resin, the carbon fiber
For unidirectional array or form of fabric, the grammes per square metre of the carbon fiber prepreg is 150~600g/m2；The grid cloth is fine by polyester
Dimension is formed, a diameter of 20~50 μm of the polyester fiber, and the stock spacing of the polyester fiber is 20~100mm.
Preferably, the specific method for carrying out chemical modification processing in step S2 to grid cloth is to impregnate the grid cloth
In surface conditioning agent, into oven for drying after the impregnation of 1~10min, drying time is 1~10min.
Preferably, the surface conditioning agent includes the component of following mass fraction：
50~80 parts of epoxy resin；
0.1~1 part of size；
20~80 parts of diluent；
30~80 parts of curing agent.
Preferably, the epoxy resin is one or both of bisphenol A type epoxy resin and bisphenol f type epoxy resin
Combination is preferably single bisphenol A type epoxy resin.
Preferably, the size is castor oil polyoxyethylene ether.
Preferably, the diluent is one kind in ethyl alcohol and acetone.
Preferably, the curing agent is the combination of one or both of acid anhydride type curing agent and amine curing agent, preferably
It is 1 in proportion for methyl tetrahydrophthalic anhydride and polyetheramine:1~10:1 mode mixes.
Preferably, the preparation method of the surface conditioning agent is to choose each raw material by mass fraction, mixed using physical agitation
Prepared by the method for conjunction, mixing speed is 300~500r/min, and mixing time is 5~15min.
The invention also discloses a kind of carbon fiber prepregs, including the carbon fiber prepregs prepared by above-mentioned preparation method,
Outer protective film is additionally provided on the carbon fibre initial rinse band, the outer protective film is respectively arranged at the carbon fiber with the grid cloth
The both sides of prepreg, the outer protective film are the PE films with apparent warning function color.
Beneficial effects of the present invention：
(1) in carbon fiber prepreg during laying, polyester fiber grid cloth can play sky between evacuation prepreg tape
Gas reduces the effect of composite product porosity；
(2) chemical active radical on polyester fiber grid cloth surface participates in curing reaction in the solidification process of prepreg,
The interlaminar shear strength of carbon fibre composite laminate is improved；
(3) recombination process of carbon fiber prepreg and grid cloth is completed online in the production process of prepreg tape, work
Skill is simple, easy to process；
(4) carbon fiber prepregs of the invention can be used for the shaping of the more laying Carbon-fiber Reinforced Plastics Components of big wall thickness,
Its application in wind electricity blade crossbeam can obtain good result.
Specific embodiment
The principle of the present invention is by carrying out chemical modification processing to grid cloth, its surface being made to contain a certain number ofization
Active group is learned, then grid cloth is attached in carbon fiber prepreg, the chemical active radical on grid cloth surface is in prepreg
Curing reaction is participated in solidification process, the interlaminar shear strength of carbon fibre composite laminate is improved, simultaneously because net
The presence of lattice cloth, in carbon fiber prepreg during laying, polyester fiber grid cloth can play sky between evacuation prepreg tape
Gas reduces the effect of composite product porosity.
The present invention is further explained below by way of specific embodiment.
Embodiment 1
Carbon fiber prepregs prepared by the present embodiment 1 are made using conventional carbon fiber prepreg and polyester fiber grid cloth
For raw material, first polyester fiber grid cloth is impregnated in surface conditioning agent, baking oven is entered after the impregnation of 1~10min
Drying, drying time are 1~10min, then carbon fibre initial rinse material volume are placed on diameter 200~400mm barrels, in carbon fiber
The polyester fiber grid cloth placed of modification is controlled on carbon fiber prepreg by the height of pressure roller before prepreg winding
Make one semi-perimeter of fiber in polyester fiber grid cloth by the resin infiltration in carbon fiber prepreg, under conditions of 120 DEG C/2h
Both the carbon fiber prepregs of the present embodiment 1 are obtained after curing；
Wherein, surface conditioning agent is made of the component of following mass fraction：20 parts of bisphenol A type epoxy resin, Bisphenol F type ring
30 parts of oxygen resin, 1 part of castor oil polyoxyethylene ether, 80 parts of ethyl alcohol, 30 parts of methyl tetrahydrophthalic anhydride；It is selected by mass fraction
Take each raw material, prepared using the method for physical agitation mixing, mixing speed is 300~500r/min, mixing time for 5~
15min。
Embodiment 2
Carbon fiber prepregs prepared by the present embodiment 2 are identical with 1 preparation method of embodiment, and difference lies in surface conditioning agents
Ingredient, the surface conditioning agent of the present embodiment 2 are made of the component of following mass fraction：80 parts of bisphenol A type epoxy resin, castor oil
0.1 part of polyoxyethylene ether, 20 parts of acetone, 70 parts of methyl tetrahydrophthalic anhydride, 7 parts of polyetheramine.
Embodiment 3
Carbon fiber prepregs prepared by the present embodiment 3 are identical with 1 preparation method of embodiment, and difference lies in surface conditioning agents
Ingredient, the surface conditioning agent of the present embodiment 3 are made of the component of following mass fraction：65 parts of bisphenol A type epoxy resin, castor oil
0.5 part of polyoxyethylene ether, 50 parts of ethyl alcohol, 50 parts of methyl tetrahydrophthalic anhydride, 10 parts of polyetheramine.
Embodiment 4
Carbon fiber prepregs prepared by the present embodiment 4 are identical with 1 preparation method of embodiment, and difference lies in surface conditioning agents
Ingredient, the surface conditioning agent of the present embodiment 4 are made of the component of following mass fraction：50 parts of bisphenol A type epoxy resin, castor oil
0.5 part of polyoxyethylene ether, 50 parts of ethyl alcohol, 25 parts of methyl tetrahydrophthalic anhydride, 25 parts of polyetheramine.
Comparative example 1
The prepreg without surface treatment grid cloth that this comparative example 1 is prepared using vacuum flexible bag moulding is molding unidirectional
Composite material.
The comparison of the mechanical property of Examples 1 to 4 and comparative example 1 is as shown in table 1 below：
Table 1
As shown in Table 1, the carbon fiber prepregs by surface treatment grid cloth prepared using the method for the present invention have excellent
Different mechanical property can be used for the shaping of the more laying Carbon-fiber Reinforced Plastics Components of big wall thickness, especially suitable for wind electricity blade
Crossbeam has many advantages, such as that porosity is low, interlaminar shear strength is high.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the invention, although with reference to foregoing reality
Example is applied the present invention is described in detail, it for those skilled in the art, still can be to foregoing each implementation
Technical solution recorded in example modifies or carries out equivalent substitution to which part technical characteristic.All essences in the present invention
With within principle, any modifications, equivalent replacements and improvements are made should all be included in the protection scope of the present invention god.
Claims (10)
1. a kind of preparation method of carbon fiber prepregs, which is characterized in that include the following steps：
S1, conventional carbon fiber prepreg and grid cloth are selected as raw material；
S2, chemical modification processing is carried out to grid cloth, its surface is made to contain a certain number of chemical active radicals；
S3, the grid cloth in step S2 is rolled onto together with carbon fiber prepreg on roller applies pressure, make the fiber in grid cloth
One semi-perimeter is by the resin infiltration in carbon fiber prepreg.
2. the preparation method of a kind of carbon fiber prepregs according to claim 1, which is characterized in that described in step S1
Carbon fiber prepreg is formed by carbon fiber and thermosetting resin, and the carbon fiber is unidirectional array or form of fabric, and the carbon is fine
The grammes per square metre for tieing up prepreg is 150~600g/m2；The grid cloth is formed by polyester fiber, and the polyester fiber a diameter of 20~
50 μm, the stock spacing of the polyester fiber is 20~100mm.
3. the preparation method of a kind of carbon fiber prepregs according to claim 1, which is characterized in that grid in step S2
The specific method that cloth carries out chemical modification processing is the grid cloth to be impregnated in surface conditioning agent, by 1~10min's
Into oven for drying after impregnation, drying time is 1~10min.
A kind of 4. preparation method of carbon fiber prepregs according to claim 3, which is characterized in that the surface conditioning agent
Include the component of following mass fraction：
50~80 parts of epoxy resin；
0.1~1 part of size；
20~80 parts of diluent；
30~80 parts of curing agent.
5. the preparation method of a kind of carbon fiber prepregs according to claim 4, which is characterized in that the epoxy resin is
The combination of one or both of bisphenol A type epoxy resin and bisphenol f type epoxy resin is preferably single bisphenol type epoxy
Resin.
6. the preparation method of a kind of carbon fiber prepregs according to claim 4, which is characterized in that the size is castor
Sesame oil polyoxyethylene ether.
7. the preparation method of a kind of carbon fiber prepregs according to claim 4, which is characterized in that the diluent is second
One kind in alcohol and acetone.
8. the preparation method of a kind of carbon fiber prepregs according to claim 4, which is characterized in that the curing agent is acid
The combination of one or both of anhydride curing agent and amine curing agent is preferably methyl tetrahydrophthalic anhydride and polyetheramine
It is 1 in proportion:1~10:1 mode mixes.
A kind of 9. preparation method of carbon fiber prepregs according to any one of claims 4 to 8, which is characterized in that institute
The preparation method for stating surface conditioning agent is to choose each raw material by mass fraction, is prepared using the method for physical agitation mixing, stirring
Speed is 300~500r/min, and mixing time is 5~15min.
10. a kind of carbon fiber prepregs, which is characterized in that described including the carbon fiber prepregs prepared by above-mentioned preparation method
Outer protective film is additionally provided on carbon fibre initial rinse band, the outer protective film is respectively arranged at the carbon fibre initial rinse with the grid cloth
The both sides of material, the outer protective film are the PE films with apparent warning function color.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810021477.6A CN108099330A (en) | 2018-01-10 | 2018-01-10 | A kind of carbon fiber prepregs and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810021477.6A CN108099330A (en) | 2018-01-10 | 2018-01-10 | A kind of carbon fiber prepregs and preparation method thereof |
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| Publication Number | Publication Date |
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| CN108099330A true CN108099330A (en) | 2018-06-01 |
Family
ID=62218452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201810021477.6A Pending CN108099330A (en) | 2018-01-10 | 2018-01-10 | A kind of carbon fiber prepregs and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114434890A (en) * | 2021-12-20 | 2022-05-06 | 东华大学 | Preparation method of composite carbon fiber tape for automatic laying liquid forming |
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|---|---|---|---|---|
| CN1721169A (en) * | 2004-05-11 | 2006-01-18 | 赫克赛尔控股有限责任公司 | Prepregs for use in building lay-ups of composite materials and process for their preparation |
| CN101858037A (en) * | 2010-06-18 | 2010-10-13 | 济南大学 | Emulsion type carbon fiber sizing agent and preparation method and application thereof |
| CN104508022A (en) * | 2012-07-25 | 2015-04-08 | 东丽株式会社 | Prepreg and carbon-fiber-reinforced composite material |
| CN105733193A (en) * | 2016-03-23 | 2016-07-06 | 航天材料及工艺研究所 | Preparation method of epoxy resin based composite material with controllable toughness |
| CN106113738A (en) * | 2016-07-15 | 2016-11-16 | 广东新秀新材料股份有限公司 | Sandwich structure composite material and preparation method thereof |
-
2018
- 2018-01-10 CN CN201810021477.6A patent/CN108099330A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1721169A (en) * | 2004-05-11 | 2006-01-18 | 赫克赛尔控股有限责任公司 | Prepregs for use in building lay-ups of composite materials and process for their preparation |
| CN101858037A (en) * | 2010-06-18 | 2010-10-13 | 济南大学 | Emulsion type carbon fiber sizing agent and preparation method and application thereof |
| CN104508022A (en) * | 2012-07-25 | 2015-04-08 | 东丽株式会社 | Prepreg and carbon-fiber-reinforced composite material |
| CN105733193A (en) * | 2016-03-23 | 2016-07-06 | 航天材料及工艺研究所 | Preparation method of epoxy resin based composite material with controllable toughness |
| CN106113738A (en) * | 2016-07-15 | 2016-11-16 | 广东新秀新材料股份有限公司 | Sandwich structure composite material and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114434890A (en) * | 2021-12-20 | 2022-05-06 | 东华大学 | Preparation method of composite carbon fiber tape for automatic laying liquid forming |
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Application publication date: 20180601 |