CN116731373A - Carbon fiber sheet, preparation method thereof and electronic equipment - Google Patents
Carbon fiber sheet, preparation method thereof and electronic equipment Download PDFInfo
- Publication number
- CN116731373A CN116731373A CN202310794265.2A CN202310794265A CN116731373A CN 116731373 A CN116731373 A CN 116731373A CN 202310794265 A CN202310794265 A CN 202310794265A CN 116731373 A CN116731373 A CN 116731373A
- Authority
- CN
- China
- Prior art keywords
- carbon fiber
- fiber sheet
- groups
- silicone oil
- release layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 153
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 153
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 153
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 52
- 239000011159 matrix material Substances 0.000 claims abstract description 51
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 44
- 239000001257 hydrogen Substances 0.000 claims abstract description 44
- 229920002545 silicone oil Polymers 0.000 claims abstract description 42
- -1 olefin compounds Chemical class 0.000 claims abstract description 40
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 37
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000000758 substrate Substances 0.000 claims abstract description 13
- 150000001875 compounds Chemical class 0.000 claims description 32
- 229920001169 thermoplastic Chemical class 0.000 claims description 24
- 239000004416 thermosoftening plastic Chemical class 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 21
- 229920001187 thermosetting polymer Polymers 0.000 claims description 17
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 12
- 239000003822 epoxy resin Substances 0.000 claims description 9
- 239000003063 flame retardant Substances 0.000 claims description 9
- 229920000647 polyepoxide Polymers 0.000 claims description 9
- XXROGKLTLUQVRX-UHFFFAOYSA-N allyl alcohol Chemical compound OCC=C XXROGKLTLUQVRX-UHFFFAOYSA-N 0.000 claims description 8
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 5
- XYLMUPLGERFSHI-UHFFFAOYSA-N alpha-Methylstyrene Chemical compound CC(=C)C1=CC=CC=C1 XYLMUPLGERFSHI-UHFFFAOYSA-N 0.000 claims description 4
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 4
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 4
- 229920002554 vinyl polymer Polymers 0.000 claims description 4
- XQUPVDVFXZDTLT-UHFFFAOYSA-N 1-[4-[[4-(2,5-dioxopyrrol-1-yl)phenyl]methyl]phenyl]pyrrole-2,5-dione Chemical compound O=C1C=CC(=O)N1C(C=C1)=CC=C1CC1=CC=C(N2C(C=CC2=O)=O)C=C1 XQUPVDVFXZDTLT-UHFFFAOYSA-N 0.000 claims description 3
- 239000004642 Polyimide Substances 0.000 claims description 3
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 3
- 150000002460 imidazoles Chemical class 0.000 claims description 3
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 3
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 3
- 239000000347 magnesium hydroxide Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- XFZRQAZGUOTJCS-UHFFFAOYSA-N phosphoric acid;1,3,5-triazine-2,4,6-triamine Chemical compound OP(O)(O)=O.NC1=NC(N)=NC(N)=N1 XFZRQAZGUOTJCS-UHFFFAOYSA-N 0.000 claims description 3
- 229920003192 poly(bis maleimide) Polymers 0.000 claims description 3
- 229920001225 polyester resin Polymers 0.000 claims description 3
- 239000004645 polyester resin Substances 0.000 claims description 3
- 229920001721 polyimide Polymers 0.000 claims description 3
- 229920001567 vinyl ester resin Polymers 0.000 claims description 3
- 239000004643 cyanate ester Substances 0.000 claims description 2
- 238000004132 cross linking Methods 0.000 abstract description 4
- 239000002131 composite material Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 239000004698 Polyethylene Substances 0.000 description 5
- 239000004743 Polypropylene Substances 0.000 description 5
- 239000004744 fabric Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000013585 weight reducing agent Substances 0.000 description 3
- WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical group CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- BHXSRLKYVPSYMQ-UHFFFAOYSA-N C=CC=C.C=CC=C Chemical compound C=CC=C.C=CC=C BHXSRLKYVPSYMQ-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- XLJMAIOERFSOGZ-UHFFFAOYSA-M cyanate Chemical compound [O-]C#N XLJMAIOERFSOGZ-UHFFFAOYSA-M 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 229920000578 graft copolymer Polymers 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/20—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for coatings strippable as coherent films, e.g. temporary coatings strippable as coherent films
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2300/00—Characterised by the use of unspecified polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/06—Elements
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Laminated Bodies (AREA)
Abstract
The application discloses a carbon fiber sheet, a preparation method thereof and electronic equipment. The carbon fiber sheet comprises a carbon fiber matrix and a release layer positioned on one side of the carbon fiber matrix, wherein the release layer comprises a release agent, and the release agent comprises silicone oil containing active hydrogen and olefin compounds. That is, a release layer is arranged on one side of the carbon fiber substrate, a release agent is arranged in the release layer, and the release agent is not required to be additionally used when the carbon fiber sheet is released from the die through silicone oil containing active hydrogen and olefin compounds, so that the damage to the sheet and the die is reduced. The hydrogen in the silicone oil containing active hydrogen can generate crosslinking reaction with unsaturated carbon bonds in the sheet, so that the demolding layer is tightly connected with the carbon fiber matrix while demolding is facilitated, and meanwhile, the olefin compound can further promote the light weight of the carbon fiber sheet, increase the toughness of the carbon fiber sheet and reduce the damage during demolding.
Description
Technical Field
The application relates to the technical field of carbon fiber materials, in particular to a carbon fiber sheet, a preparation method thereof and electronic equipment.
Background
The carbon fiber sheet is mainly composed of a thermosetting carbon fiber composite material, and the thermosetting carbon fiber composite material becomes an important material for thinning and weight reduction of a high polymer material due to the advantages of high specific strength, high specific modulus and the like, is increasingly applied to the fields of automobiles, electronic appliances and the like, and is a necessary trend of development along with the development of VR/AR, and is a problem to be solved urgently at present when the thermosetting carbon fiber composite material ensures excellent mechanics of the material along with the increasing requirements of people on the light weight and the comfort of wearable products.
However, the epoxy resin in the thermosetting carbon fiber composite material has excellent adhesive property, so that the epoxy resin can be tightly adhered to the surface of a mold in the actual production process, and the surface of the mold and the surface of a molded product can be easily damaged in the taking-out process. Therefore, the release agent needs to be coated in the process of preparing the carbon fiber sheet, and the carbon fiber sheet needs to be sprayed after polishing a die, so that the process is complex.
Disclosure of Invention
The application mainly aims to provide a carbon fiber sheet, a preparation method thereof and electronic equipment. Aims to solve the problems that the carbon fiber sheet is tightly adhered to the surface of a die in the prior art, and the surface of the die and the surface of a molded product are easy to damage in the process of taking out.
In order to achieve the above object, the present application provides a carbon fiber sheet, comprising a carbon fiber matrix and a release layer located on one side of the carbon fiber matrix, wherein the release layer comprises a release agent, and the release agent comprises silicone oil containing active hydrogen and an olefin compound.
Optionally, in the silicone oil containing active hydrogen, the mass ratio of hydrogen element is 0.2-1.0%.
Optionally, the silicone oil containing active hydrogen comprises at least one of methyl silicone oil, vinyl silicone oil, hydroxyl hydrogen silicone oil and methyl hydroxyl silicone oil.
Optionally, the olefinic compound includes at least one of allyl alcohol, styrene, and alpha-methyl styrene.
Optionally, the material of the release layer further comprises carbon fiber long fibers, a thermosetting compound, a thermoplastic compound, a curing agent, an accelerator and a flame retardant.
Optionally, the thermosetting compound is at least one of epoxy resin, polyester resin, vinyl ester, bismaleimide, thermosetting polyimide and cyanate ester; and/or the number of the groups of groups,
the thermoplastic compound includes at least one of PP, TPX, ABS, PA, PE; and/or the number of the groups of groups,
the particle size of the thermoplastic compound is 10-50 mu m;
and/or the number of the groups of groups,
the curing agent comprises at least one of amine compounds, anhydride compounds and imidazole compounds;
the flame retardant comprises at least one of magnesium hydroxide, aluminum hydroxide and melamine phosphate.
Optionally, the mass ratio of the release agent in the release layer is 0.2% -2%;
the mass ratio of the release agent in the release layer is 0.2% -0.8%.
Optionally, the material of the carbon fiber matrix comprises a thermoplastic compound comprising at least one of PP, TPX, ABS, PA, PE; and/or the number of the groups of groups,
the material of the carbon fiber matrix comprises a thermoplastic compound, wherein the mass ratio of the thermoplastic compound in the carbon fiber matrix is 5-20%.
The application also provides a preparation method of the carbon fiber sheet, which comprises the following steps:
obtaining a carbon fiber matrix;
forming a release layer on one side of a carbon fiber substrate to obtain a carbon fiber sheet;
the material of the release layer comprises a release agent, wherein the release agent comprises silicone oil containing active hydrogen and an olefin compound.
The application also provides electronic equipment comprising the carbon fiber sheet or the carbon fiber sheet prepared by the preparation method of the carbon fiber sheet, wherein the electronic equipment comprises a mobile phone, a computer, AR/VR equipment, an automobile or an earphone. The carbon fiber sheet comprises a carbon fiber matrix and a release layer positioned on one side of the carbon fiber matrix, wherein the release layer comprises a release agent, and the release agent comprises silicone oil containing active hydrogen and an olefin compound.
The carbon fiber sheet provided by the application comprises a carbon fiber matrix and a release layer positioned on one side of the carbon fiber matrix, wherein the release layer comprises a release agent, and the release agent comprises silicone oil containing active hydrogen and olefin compounds. That is, a release layer is arranged on one side of the carbon fiber substrate, a release agent is arranged in the release layer, and the release agent is not required to be additionally used when the carbon fiber sheet is released from the die through silicone oil containing active hydrogen and olefin compounds, so that the damage to the sheet and the die is reduced. The hydrogen in the silicone oil containing active hydrogen can generate crosslinking reaction with unsaturated carbon bonds in the sheet, so that the demolding layer is tightly connected with the carbon fiber matrix while demolding is facilitated, and meanwhile, the olefin compound can further promote the light weight of the carbon fiber sheet, increase the toughness of the carbon fiber sheet and reduce the damage during demolding.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below. The specific conditions are not noted in the examples and are carried out according to conventional conditions or conditions recommended by the manufacturer. The reagents or apparatus used were conventional products commercially available without the manufacturer's attention. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be regarded as not exist and not within the protection scope of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The carbon fiber sheet is mainly composed of a thermosetting carbon fiber composite material, and the thermosetting carbon fiber composite material becomes an important material for thinning and weight reduction of a high polymer material due to the advantages of high specific strength, high specific modulus and the like, is increasingly applied to the fields of automobiles, electronic appliances and the like, and is a necessary trend of development along with the development of VR/AR, and is a problem to be solved urgently at present when the thermosetting carbon fiber composite material ensures excellent mechanics of the material along with the increasing requirements of people on the light weight and the comfort of wearable products.
However, the epoxy resin in the thermosetting carbon fiber composite material has excellent adhesive property, so that the epoxy resin can be tightly adhered to the surface of a mold in the actual production process, and the surface of the mold and the surface of a molded product can be easily damaged in the taking-out process. Therefore, the release agent needs to be coated in the process of preparing the carbon fiber sheet, and the carbon fiber sheet needs to be sprayed after polishing a die, so that the process is complex. In view of the above, the present application provides a carbon fiber sheet comprising a carbon fiber substrate and a release layer located on one side of the carbon fiber substrate, wherein the release layer comprises a release agent comprising an active hydrogen-containing silicone oil and an olefin compound.
In the technical scheme of the application, the carbon fiber sheet comprises a carbon fiber matrix and a release layer positioned on one side of the carbon fiber matrix, wherein the release layer comprises a release agent, and the release agent comprises silicone oil containing active hydrogen and olefin compounds. That is, a release layer is arranged on one side of the carbon fiber substrate, a release agent is arranged in the release layer, and the release agent is not required to be additionally used when the carbon fiber sheet is released from the die through silicone oil containing active hydrogen and olefin compounds, so that the damage to the sheet and the die is reduced. The hydrogen in the silicone oil containing active hydrogen can generate crosslinking reaction with unsaturated carbon bonds in the sheet, so that the demolding layer is tightly connected with the carbon fiber matrix while demolding is facilitated, and meanwhile, the olefin compound can further promote the light weight of the carbon fiber sheet, increase the toughness of the carbon fiber sheet and reduce the damage during demolding.
In order to improve the bonding firmness between the release layer and the carbon fiber matrix, the mass ratio of hydrogen element in the silicone oil containing active hydrogen is 0.2-1.0%. When the mass ratio of the hydrogen element is less than 0.2%, the active hydrogen bonds are too few, the adhesion is not tight enough, and when the mass ratio of the hydrogen element is more than 1.0%, the active hydrogen bonds are too many, so that the demolding is not facilitated.
Further, the active hydrogen-containing silicone oil comprises at least one of methyl silicone oil, vinyl silicone oil, hydroxyl hydrogen-containing silicone oil and methyl hydroxyl silicone oil. The silicone oil containing active hydrogen can further improve the demolding effect of the demolding layer and further improve the bonding firmness of the carbon fiber matrix and the demolding layer.
In order to further improve the bonding firmness of the carbon fiber matrix and the release layer, the olefin compound comprises at least one of allyl alcohol, styrene and alpha-methyl styrene. The use of at least one of the above-mentioned olefin compounds can improve the degree of weight reduction of the carbon fiber sheet and reduce the density of the carbon fiber sheet.
In order to improve the consistency between the release layer and the carbon fiber matrix, the material of the release layer further comprises carbon fiber long fibers, thermosetting compounds, thermoplastic compounds, curing agents, accelerators and flame retardants. So that the release layer also has the basic properties of a carbon fiber matrix.
Further, the thermosetting compound has better curing performance by adopting at least one of epoxy resin, polyester resin, vinyl ester, bismaleimide, thermosetting polyimide and cyanate; and/or the number of the groups of groups,
the thermoplastic compound comprises at least one of PP, TPX, ABS, PA, PE, and the thermoplastic compound has better molding effect, wherein PP is polypropylene, TPX is 4-methylpentene polymer, ABS is graft copolymer of three monomers of Acrylonitrile (Acrylonitrile), 1, 3-Butadiene (Butadiene) and Styrene (Styrene), PA is polyamide, and PE is polyethylene; and/or the number of the groups of groups,
the particle size of the thermoplastic compound is 10-50 mu m, the particle size is too small, the dispersion performance of the thermoplastic compound is affected, the particle size is too large, and the adhesive performance is poor; and/or the number of the groups of groups,
the curing agent comprises at least one of amine compounds, anhydride compounds and imidazole compounds, and the curing rate can be improved by adopting the curing agent; and/or the number of the groups of groups,
the flame retardant comprises at least one of magnesium hydroxide, aluminum hydroxide and melamine phosphate, and the flame retardant can improve the flame retardant property of the carbon fiber sheet and reduce the probability of burning the carbon fiber sheet.
Further, the mass ratio of the release agent in the release layer is 0.2% -2%, the mass ratio of the release agent in the release layer is less than 0.2%, the release effect is poor, the mass ratio of the release agent in the release layer is more than 2%, silicone oil is separated out, and the surface cleanliness of the carbon fiber sheet is affected; and/or the number of the groups of groups,
the mass ratio of the release agent in the release layer is 0.2% -0.8%.
Further, the material of the carbon fiber matrix comprises a thermoplastic compound, and the thermoplastic compound is added into the material of the carbon fiber matrix, so that the connection firmness of the carbon fiber matrix and the release layer can be improved while the light weight of the carbon fiber sheet is realized; and/or the number of the groups of groups,
the material of the carbon fiber matrix comprises a thermoplastic compound, wherein the mass ratio of the thermoplastic compound in the carbon fiber matrix is 5-20%. By adding the thermoplastic compound with the mass ratio of 5-20% into the carbon fiber matrix, the connection firmness between the carbon fiber matrix and the release layer can be improved while the light weight of the carbon fiber sheet is further realized.
The application also provides a preparation method of the carbon fiber sheet, which comprises the following steps:
obtaining a carbon fiber matrix;
forming a release layer on one side of a carbon fiber substrate to obtain a carbon fiber sheet;
the material of the release layer comprises a release agent, wherein the release agent comprises silicone oil containing active hydrogen and an olefin compound.
The carbon fiber sheet is obtained by forming a release layer on one side of a carbon fiber substrate, wherein the material of the release layer comprises a release agent comprising silicone oil containing active hydrogen and an olefin compound. A carbon fiber sheet containing a release layer can be obtained.
The carbon fiber sheet material also comprises a carbon fiber fabric, which can be a carbon fiber unidirectional tape, a carbon fiber two-dimensional fabric or a three-dimensional fabric. A release layer may be formed on one side of the carbon fiber substrate in a stacked manner. The carbon fiber matrix comprises at least one layer of carbon fiber fabric, and can be 1 layer, 2 layers or more than 2 layers.
The application also provides electronic equipment comprising the carbon fiber sheet or the carbon fiber sheet prepared by the preparation method of the carbon fiber sheet, wherein the electronic equipment comprises a mobile phone, a computer, AR/VR equipment, an automobile or an earphone. The carbon fiber sheet comprises a carbon fiber matrix and a release layer positioned on one side of the carbon fiber matrix, wherein the release layer comprises a release agent, and the release agent comprises silicone oil containing active hydrogen and an olefin compound. The electronic equipment has all the technical schemes of the carbon fiber sheet, so that the electronic equipment has all the beneficial effects, and the application is not described in detail herein.
The following description of the embodiments of the present application will be presented in further detail with reference to the examples, which should be understood as being merely illustrative of the present application and not limiting.
In the embodiment of the application, the composition of the carbon fiber matrix is not limited, 40% of the carbon fiber fabric, 45% of the epoxy resin, 0.5% of the curing agent, 0.5% of the accelerator, 3% of the flame retardant and other auxiliary agents are taken as an example, and other components are described according to the embodiment. When the mass ratio of the thermoplastic compound in the carbon fiber matrix is changed, the epoxy resin mass ratio is correspondingly reduced so that the overall sum is 100%.
Example 1
A carbon fiber sheet comprises a carbon fiber substrate and a release layer positioned on one side of the carbon fiber substrate, wherein the release layer comprises allyl alcohol and methyl silicone oil.
Example 2
A carbon fiber sheet comprises a carbon fiber matrix and a release layer positioned on one side of the carbon fiber matrix, wherein the release layer comprises styrene and vinyl silicone oil.
Example 3
A carbon fiber sheet comprises a carbon fiber matrix and a release layer positioned on one side of the carbon fiber matrix, wherein the release layer comprises alpha-methylstyrene and hydroxyl hydrogen-containing silicone oil.
The arrangement of examples 4 to 14 and comparative examples 1 to 3 differs from example 3 in that the arrangement is as set forth in Table 1:
TABLE 1 parameter settings for examples 4-14 and comparative examples 1-3
Test method and results
The density and the mold release effect of the carbon fiber sheets of examples 1 to 14 and comparative examples 1 to 3 of the present application were examined, and the results are shown in table 2:
table 2 density and release effects of carbon fiber sheets of examples 1 to 14 and comparative examples 1 to 3
As is clear from table 2, the mass ratio of the release agent in the release layer was less than 0.2%, the release effect was poor, the mass ratio of the release agent in the release layer was more than 2%, and silicone oil was precipitated, affecting the surface cleanliness of the carbon fiber sheet. By adding the thermoplastic compound with the mass ratio of 5-20% into the carbon fiber matrix, the connection firmness between the carbon fiber matrix and the release layer can be improved while the light weight of the carbon fiber sheet is further realized.
In comparative example 1, the release agent is sprayed on the surface of the mold because the silicone oil without active hydrogen cannot be released, and in comparative example 2, the matrix without the olefin compound is layered with the release layer, and in comparative example 3, the silicone oil without active hydrogen and the olefin compound cannot be released, and the release agent is sprayed on the surface of the mold.
In summary, the application adopts the carbon fiber sheet material to comprise a carbon fiber matrix and a release layer positioned on one side of the carbon fiber matrix, wherein the material of the release layer comprises a release agent, and the release agent comprises silicone oil containing active hydrogen and olefin compounds. That is, a release layer is arranged on one side of the carbon fiber substrate, a release agent is arranged in the release layer, and the release agent is not required to be additionally used when the carbon fiber sheet is released from the die through silicone oil containing active hydrogen and olefin compounds, so that the damage to the sheet and the die is reduced. The hydrogen in the silicone oil containing active hydrogen can generate crosslinking reaction with unsaturated carbon bonds in the sheet, so that the demolding layer is tightly connected with the carbon fiber matrix while demolding is facilitated, and meanwhile, the olefin compound can further promote the light weight of the carbon fiber sheet, increase the toughness of the carbon fiber sheet and reduce the damage during demolding.
The foregoing is merely a preferred embodiment of the present application and is not intended to limit the scope of the present application, but various modifications and variations will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the present application.
Claims (10)
1. The carbon fiber sheet is characterized by comprising a carbon fiber matrix and a release layer positioned on one side of the carbon fiber matrix, wherein the release layer comprises a release agent, and the release agent comprises silicone oil containing active hydrogen and an olefin compound.
2. The carbon fiber sheet according to claim 1, wherein the mass ratio of hydrogen element in the active hydrogen-containing silicone oil is 0.2 to 1.0%.
3. The carbon fiber sheet according to claim 2, wherein the active hydrogen-containing silicone oil comprises at least one of methyl silicone oil, vinyl silicone oil, hydroxyl hydrogen-containing silicone oil, and methyl hydroxyl silicone oil.
4. The carbon fiber sheet according to claim 1, wherein the olefinic compound comprises at least one of allyl alcohol, styrene, and α -methylstyrene.
5. The carbon fiber sheet according to claim 1, wherein the release layer material further comprises carbon fiber filaments, thermosetting compounds, thermoplastic compounds, curing agents, accelerators, and flame retardants.
6. The carbon fiber sheet according to claim 5,
at least one of epoxy resin, polyester resin, vinyl ester, bismaleimide, thermosetting polyimide and cyanate ester serving as thermosetting compounds; and/or the number of the groups of groups,
the thermoplastic compound comprises at least one of PP, TPX, ABS, PA and PE; and/or the number of the groups of groups,
the particle size of the thermoplastic compound is 10-50 mu m; and/or the number of the groups of groups,
the curing agent comprises at least one of amine compounds, anhydride compounds and imidazole compounds; and/or the number of the groups of groups,
the flame retardant comprises at least one of magnesium hydroxide, aluminum hydroxide and melamine phosphate.
7. The carbon fiber sheet according to claim 1, wherein the mass ratio of the release agent in the release layer is 0.2% to 2%; and/or the number of the groups of groups,
the mass ratio of the release agent in the release layer is 0.2% -0.8%.
8. The carbon fiber sheet of claim 1, wherein the material of the carbon fiber matrix comprises a thermoplastic compound; and/or the number of the groups of groups,
the material of the carbon fiber matrix comprises a thermoplastic compound, wherein the mass ratio of the thermoplastic compound in the carbon fiber matrix is 5-20%.
9. A method for producing the carbon fiber sheet according to any one of claims 1 to 8, comprising the steps of:
obtaining a carbon fiber matrix;
and forming a release layer on one side of the carbon fiber substrate to obtain the carbon fiber sheet.
10. An electronic device, characterized by comprising the carbon fiber sheet according to any one of claims 1 to 8 or the carbon fiber sheet prepared by the preparation method of the carbon fiber sheet according to claim 9, wherein the electronic device comprises a mobile phone, a computer, an AR/VR device, an automobile or an earphone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310794265.2A CN116731373A (en) | 2023-06-30 | 2023-06-30 | Carbon fiber sheet, preparation method thereof and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310794265.2A CN116731373A (en) | 2023-06-30 | 2023-06-30 | Carbon fiber sheet, preparation method thereof and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116731373A true CN116731373A (en) | 2023-09-12 |
Family
ID=87905913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310794265.2A Pending CN116731373A (en) | 2023-06-30 | 2023-06-30 | Carbon fiber sheet, preparation method thereof and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116731373A (en) |
-
2023
- 2023-06-30 CN CN202310794265.2A patent/CN116731373A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI304321B (en) | Layered products, electromagnetic wave shielding molded articles and method for production thereof | |
| CN103387709B (en) | A kind of thermoplastic composite, preparation method and applications | |
| KR101985849B1 (en) | Carbon fiber prepreg or carbon fiber - reinforced plastic, and materials including the same | |
| EP3246460B1 (en) | Reinforcing fiber bundle and carbon-fiber-reinforced thermoplastic resin molded article, and method for manufacturing reinforcing fiber bundle | |
| US20080206544A1 (en) | Heat-Transferring Adhesive Tape With Improved Functionality | |
| CN101085865A (en) | Substrate for heat bonding and method for producing layered product by the same | |
| JP2007092072A (en) | Preform comprising substrate for heat bonding and method for producing layered product | |
| JP2007110138A (en) | Molded object for electromagnetic wave shielding and method of manufacturing the same | |
| JP2004535320A (en) | Layered composite material and method for producing the same | |
| WO2019073707A1 (en) | Base material for fiber-reinforced plastic molded bodies, method for producing fiber-reinforced plastic molded body, and fiber-reinforced plastic molded body | |
| CN116731373A (en) | Carbon fiber sheet, preparation method thereof and electronic equipment | |
| EP3690132A1 (en) | Reinforcing fiber bundle, reinforcing fiber open fabric, and fiber-reinforced composite, and manufacturing method thereof | |
| TWI784191B (en) | Release film and method for manufacturing molded article | |
| CN112406136A (en) | Glass fiber reinforced plastic antenna housing and preparation method thereof | |
| CN109706791B (en) | Durable release paper and preparation method thereof | |
| WO2016031637A1 (en) | Flame-retardant shaped object comprising three-dimensional woven material, and production process | |
| JP2008174610A (en) | Impact-resistant prepreg and method for producing the same | |
| JP2020069764A (en) | Multilayer structure including resin | |
| WO2021057357A1 (en) | Master batch for polypropylene with ultra-low linear expansion coefficient and use thereof | |
| CN111439001A (en) | High-strength heat management material | |
| JPH0976422A (en) | Conductive composite plastic sheet and container | |
| KR102473089B1 (en) | Electromagnetic shielding function composite material and its manufacturing method | |
| KR102641855B1 (en) | Separator member for fuel cell and method of manufacturing the same | |
| TWI818446B (en) | Highly flameproof laminated composite material and manufacturing method thereof | |
| CN116476489A (en) | Multilayer structure protection board with conductivity and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |