CN112480632A - Carbon fiber reinforced polycarbonate composite material - Google Patents
Carbon fiber reinforced polycarbonate composite material Download PDFInfo
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- CN112480632A CN112480632A CN202011393111.5A CN202011393111A CN112480632A CN 112480632 A CN112480632 A CN 112480632A CN 202011393111 A CN202011393111 A CN 202011393111A CN 112480632 A CN112480632 A CN 112480632A
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- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 131
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 131
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 127
- 239000002131 composite material Substances 0.000 title claims abstract description 67
- 239000004417 polycarbonate Substances 0.000 title claims abstract description 57
- 229920000515 polycarbonate Polymers 0.000 title claims abstract description 57
- 229920006289 polycarbonate film Polymers 0.000 claims abstract description 61
- 239000002356 single layer Substances 0.000 claims abstract description 61
- 239000004744 fabric Substances 0.000 claims abstract description 59
- 239000010410 layer Substances 0.000 claims abstract description 55
- 238000007731 hot pressing Methods 0.000 claims abstract description 42
- 238000010030 laminating Methods 0.000 claims abstract description 18
- 239000003795 chemical substances by application Substances 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 12
- 229910000576 Laminated steel Inorganic materials 0.000 claims 2
- 150000002148 esters Chemical class 0.000 claims 1
- 239000000835 fiber Substances 0.000 abstract description 4
- 239000004745 nonwoven fabric Substances 0.000 abstract description 4
- 238000003860 storage Methods 0.000 abstract description 4
- 238000002360 preparation method Methods 0.000 abstract description 3
- 230000003014 reinforcing effect Effects 0.000 abstract description 3
- 238000005520 cutting process Methods 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 11
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 8
- 229910052709 silver Inorganic materials 0.000 description 8
- 239000004332 silver Substances 0.000 description 8
- 239000013078 crystal Substances 0.000 description 7
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 239000011159 matrix material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 101150031883 gpa-15 gene Proteins 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 238000009745 resin transfer moulding Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- 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
-
- 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
Abstract
The invention relates to a carbon fiber reinforced polycarbonate composite material. The preparation method comprises the following steps of: (1) respectively cutting the carbon fiber laid fabric and the polycarbonate film into squares to obtain single-layer carbon fiber laid fabric and single-layer polycarbonate film; (2) laminating 3-9 layers of single-layer carbon fiber non-woven cloth into a whole carbon fiber non-woven cloth layer; alternately laminating a single polycarbonate film and the whole carbon fiber non-woven cloth layer; the total number of the single-layer polycarbonate films is 6-11, and the uppermost layer and the lowermost layer are single-layer polycarbonate films; (3) after stacking, putting the laminated plate into a mould, covering an upper template, putting the mould into a vacuum hot press for hot pressing, and opening the mould to take out the laminated plate after the hot pressing is finished. The composite material takes carbon fiber non-woven fabric as a reinforcing phase and polycarbonate as a continuous phase, has high strength, has consistent strength along each direction of the fiber, and has good product performance; the raw materials are simple and easy to obtain, the storage period is long, and the requirement on the storage environment is low.
Description
Technical Field
The invention relates to a carbon fiber reinforced resin matrix composite material, in particular to a carbon fiber reinforced polycarbonate composite material.
Background
The carbon fiber reinforced resin matrix composite material is a novel material with high strength and light weight ratio, and mainly takes carbon fibers as a reinforcing phase and resin as a continuous phase, wherein the carbon fibers include but are not limited to PAN-based carbon fibers, pitch-based carbon fibers and the like, and the resin includes but is not limited to epoxy resin, ABS, polyether ether ketone and the like. The composite material has the main advantages of high strength, low density which is less than 1/6 of common steel materials, low forming requirement, capability of being processed into various special-shaped structures, capability of being connected by mortise and tenon structures, wide application and wide application prospect.
At present, the carbon fiber reinforced resin matrix composite material is commonly formed by hot pressing, RTM process, vacuum tank hot pressing, winding and the like, and the forming method is various and is different for different materials.
Disclosure of Invention
The invention aims to provide a carbon fiber reinforced polycarbonate composite material which has high strength and consistent strength in all directions along a fiber direction.
The purpose of the invention is realized by the following technical scheme:
the carbon fiber reinforced polycarbonate composite material is characterized by being prepared by the following steps in sequence:
(1) the areal density is 15-33 g/m2The carbon fiber laid fabric and the polycarbonate film with the thickness of 0.2-0.5 mm are respectively cut into squares with the size of (415 +/-5) mmX (415 +/-5) mm by using a die to obtain single-layer carbon fiber laid fabric and single-layer polycarbonate film;
(2) laminating 3-9 layers of the single-layer carbon fiber laid cloth into a whole carbon fiber laid cloth layer; alternately laminating the single-layer polycarbonate film and the whole carbon fiber non-woven cloth layer; the total number of the single-layer polycarbonate films is 6-11, and the uppermost layer and the lowermost layer are the single-layer polycarbonate films;
(3) and (3) after stacking, putting the carbon fiber reinforced polycarbonate composite material into the mould coated with the oily release agent, covering the upper mould plate, putting the mould into a vacuum hot press for hot pressing, heating from room temperature to 120 ℃ within 30min, keeping the temperature for 2h, heating to 300 ℃ within 90min, keeping the temperature for 20min, naturally cooling, keeping the vacuum and the pressure of 2-5 MPa in the whole hot pressing process, opening the mould after the hot pressing is finished, and taking out the mould to obtain the carbon fiber reinforced polycarbonate composite material.
Wherein, the carbon fiber non-woven cloth is preferably a product with the product type of 12K T700SC, which is purchased from the high-tech materials company of the airship in Yixing city; the polycarbonate film is preferably a product available from Mianyang Longhua film Co., Ltd, and the type thereof is selected from Longhua PC-801-4, 801-OMF, 1811T, 1811HC, 811-ST, 811-B, 811M, 811S, 813F, 815F, 816, 832F, 835F, 835-7, 836, 818-B, 635, 532ETC and the like; the above-mentioned oily release agent is preferably an oily release agent having a trademark LR-11 manufactured by International silver Crystal Co., Ltd.
More preferably, the carbon fiber laid fabric has an areal density of preferably 20g/m2。
More preferably, the thickness of the polycarbonate film is 0.2 mm.
More preferably, in the carbon fiber-reinforced polycarbonate composite material, the total number of the single-layer polycarbonate films is 10.
Further preferably, the pressure is kept at 5Mpa while maintaining a vacuum during the hot pressing.
The invention has the following beneficial effects:
the invention provides a carbon fiber reinforced polycarbonate composite material, which takes carbon fiber non-woven fabric as a reinforcing phase and polycarbonate as a continuous phase, has high strength, consistent strength in each direction along the fiber direction and good product performance; the raw materials are simple and easy to obtain, the storage period is long, and the requirement on the storage environment is low; the preparation method is simple to operate, short in preparation period and low in equipment requirement.
Drawings
Fig. 1 is a schematic structural diagram of a carbon fiber reinforced polycarbonate composite material prepared in example 1 of the present invention.
Fig. 2 is a schematic structural view of the mold in embodiment 1 of the present invention.
Fig. 3 is a schematic scanning electron microscope of the carbon fiber reinforced polycarbonate composite material prepared in embodiment 1 of the present invention.
FIG. 4 is a schematic diagram of polarization parallel to the fiber plane of the carbon fiber reinforced polycarbonate composite material prepared in example 1 of the present invention.
FIG. 5 is a schematic view of a bending test piece of the carbon fiber reinforced polycarbonate composite material prepared in example 1 of the present invention.
Detailed Description
The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments, and not a limitation on the scope of the present invention.
Example 1
A carbon fiber reinforced polycarbonate composite material is prepared by the following steps in sequence:
(1) taking the surface density as 20g/m2The carbon fiber laid fabric and the polycarbonate film with the thickness of 0.2mm are respectively cut into squares with the size of (415 +/-5) mmX (415 +/-5) mm by using a die with the specification of 420mmX420mmX2mm to obtain single-layer carbon fiber laid fabric and single-layer polycarbonate film; wherein, the carbon fiber non-woven cloth is a product with the product type of 12K T700SC, which is purchased from the advanced aviation high-tech materials company Limited in Yixing city; polycarbonate film, a product purchased from Mianyang Longhua film Co., Ltd., of which type was selected as Longhua PC-801-4;
(2) laminating 6 layers of the single-layer carbon fiber non-woven cloth into a whole carbon fiber non-woven cloth layer; alternately laminating the single-layer polycarbonate film and the whole carbon fiber non-woven cloth layer; in the carbon fiber reinforced polycarbonate composite material, the total number of layers of single-layer polycarbonate films is 10, and the uppermost layer and the lowermost layer are the single-layer polycarbonate films;
(3) after stacking, putting the carbon fiber reinforced polycarbonate composite material into a mold coated with an oily release agent, covering an upper mold plate, putting the mold into a vacuum hot press for hot pressing, wherein the temperature is increased from room temperature to 120 ℃ within 30min during hot pressing, the temperature is kept for 2h, the temperature is increased to 300 ℃ within 90min, the temperature is kept for 20min, finally, the temperature is naturally reduced, the vacuum is kept and the pressure of 5MPa is kept in the whole hot pressing process, and the mold is opened and taken out after the hot pressing is finished, so that the carbon fiber reinforced polycarbonate composite material is obtained; wherein the oily release agent is an oily release agent with the trademark LR-11 produced by the American silver crystal International (hong Kong) limited company.
The properties of the carbon fiber reinforced polycarbonate composite material prepared in this example were measured as shown in table 1.1 below:
TABLE 1.1 mechanical Properties of the composites
| Volume fraction/% of carbon fiber | Tensile strength/MPa | Tensile modulus/GPa | Flexural strength/MPa | Flexural modulus/Gpa |
| 30 | 377.49 | 16.4 | 567.68 | 19.52 |
Example 2
A carbon fiber reinforced polycarbonate composite material is prepared by the following steps in sequence:
(1) taking the surface density as 15g/m2The carbon fiber laid fabric and the polycarbonate film with the thickness of 0.2mm are respectively cut into squares with the size of (415 +/-5) mmX (415 +/-5) mm by using a die with the specification of 420mmX420mmX2mm to obtain single-layer carbon fiber laid fabric and single-layer polycarbonate film; wherein, the carbon fiber non-woven cloth is a product with the product type of 12K T700SC, which is purchased from the advanced aviation high-tech materials company Limited in Yixing city; the polycarbonate film is a product purchased from Mianyang Longhua film Co., Ltd, and has a model number of 801-OMF;
(2) laminating the 4 layers of single-layer carbon fiber non-woven cloth into a whole carbon fiber non-woven cloth layer; alternately laminating the single-layer polycarbonate film and the whole carbon fiber non-woven cloth layer; in the carbon fiber reinforced polycarbonate composite material, the total number of layers of single-layer polycarbonate films is 10, and the uppermost layer and the lowermost layer are the single-layer polycarbonate films;
(3) after stacking, putting the carbon fiber reinforced polycarbonate composite material into a mold coated with an oily release agent, covering an upper mold plate, putting the mold into a vacuum hot press for hot pressing, wherein the temperature is increased from room temperature to 120 ℃ within 30min during hot pressing, the temperature is kept for 2h, the temperature is increased to 300 ℃ within 90min, the temperature is kept for 20min, finally, the temperature is naturally reduced, the vacuum is kept and the pressure of 5MPa is kept in the whole hot pressing process, and the mold is opened and taken out after the hot pressing is finished, so that the carbon fiber reinforced polycarbonate composite material is obtained; wherein the oily release agent is an oily release agent with the trademark LR-11 produced by the American silver crystal International (hong Kong) limited company.
The properties of the carbon fiber reinforced polycarbonate composite material prepared in this example were measured as shown in the following table 1.2:
TABLE 1.2 mechanical Properties of the composites
| Volume fraction/% of carbon fiber | Tensile strength/MPa | Tensile modulus/GPa | Flexural strength/MPa | Flexural modulus/Gpa |
| 15 | 160.6 | 10.5 | 292.8 | 10.5 |
Example 3
A carbon fiber reinforced polycarbonate composite material is prepared by the following steps in sequence:
(1) taking the surface density as 15g/m2The carbon fiber laid fabric and the polycarbonate film with the thickness of 0.2mm are respectively cut into squares with the size of (415 +/-5) mmX (415 +/-5) mm by using a die with the specification of 420mmX420mmX2mm to obtain single-layer carbon fiber laid fabric and single-layer polycarbonate film; wherein, the carbon fiber non-woven cloth is a product with the product type of 12K T700SC, which is purchased from the advanced aviation high-tech materials company Limited in Yixing city; polycarbonate film, a product purchased from Mianyang Longhua film Co., Ltd., model number 1811T;
(2) laminating 5 layers of the single-layer carbon fiber non-woven cloth into a whole carbon fiber non-woven cloth layer; alternately laminating the single-layer polycarbonate film and the whole carbon fiber non-woven cloth layer; in the carbon fiber reinforced polycarbonate composite material, the total number of layers of single-layer polycarbonate films is 10, and the uppermost layer and the lowermost layer are the single-layer polycarbonate films;
(3) after stacking, putting the carbon fiber reinforced polycarbonate composite material into a mold coated with an oily release agent, covering an upper mold plate, putting the mold into a vacuum hot press for hot pressing, wherein the temperature is increased from room temperature to 120 ℃ within 30min during hot pressing, the temperature is kept for 2h, the temperature is increased to 300 ℃ within 90min, the temperature is kept for 20min, finally, the temperature is naturally reduced, the vacuum is kept and the pressure of 5MPa is kept in the whole hot pressing process, and the mold is opened and taken out after the hot pressing is finished, so that the carbon fiber reinforced polycarbonate composite material is obtained; wherein the oily release agent is an oily release agent with the trademark LR-11 produced by the American silver crystal International (hong Kong) limited company.
The properties of the carbon fiber reinforced polycarbonate composite material prepared in this example were measured as shown in the following table 1.3:
TABLE 1.3 mechanical Properties of the composites
| Volume fraction/% of carbon fiber | Tensile strength/MPa | Tensile modulus/GPa | Flexural strength/MPa | Flexural modulus/Gpa |
| 20 | 225.74 | 17.78 | 476.74 | 14.1 |
Example 4
A carbon fiber reinforced polycarbonate composite material is prepared by the following steps in sequence:
(1) taking the surface density as 15g/m2The carbon fiber laid fabric and the polycarbonate film with the thickness of 0.2mm are respectively cut into squares with the size of (415 +/-5) mmX (415 +/-5) mm by using a die with the specification of 420mmX420mmX2mm to obtain single-layer carbon fiber laid fabric and single-layer polycarbonate film; wherein, the carbon fiber non-woven cloth is a product with the product type of 12K T700SC, which is purchased from the advanced aviation high-tech materials company Limited in Yixing city; polycarbonate film, a product purchased from Mianyang Longhua film Co., Ltd., having a model number of 811-ST;
(2) stacking 8 layers of the single-layer carbon fiber non-woven cloth into a whole carbon fiber non-woven cloth layer; alternately laminating the single-layer polycarbonate film and the whole carbon fiber non-woven cloth layer; in the carbon fiber reinforced polycarbonate composite material, the total number of layers of single-layer polycarbonate films is 10, and the uppermost layer and the lowermost layer are the single-layer polycarbonate films;
(3) after stacking, putting the carbon fiber reinforced polycarbonate composite material into a mold coated with an oily release agent, covering an upper mold plate, putting the mold into a vacuum hot press for hot pressing, wherein the temperature is increased from room temperature to 120 ℃ within 30min during hot pressing, the temperature is kept for 2h, the temperature is increased to 300 ℃ within 90min, the temperature is kept for 20min, finally, the temperature is naturally reduced, the vacuum is kept and the pressure of 5MPa is kept in the whole hot pressing process, and the mold is opened and taken out after the hot pressing is finished, so that the carbon fiber reinforced polycarbonate composite material is obtained; wherein the oily release agent is an oily release agent with the trademark LR-11 produced by the American silver crystal International (hong Kong) limited company.
The properties of the carbon fiber reinforced polycarbonate composite material prepared in this example were measured as shown in the following table 1.4:
TABLE 1.4 mechanical Properties of the composites
| Volume fraction/% of carbon fiber | Tensile strength/MPa | Tensile modulus/GPa | Flexural strength/MPa | Flexural modulus/Gpa |
| 30 | 320.2 | 22.1 | 599.8 | 20.1 |
Example 5
A carbon fiber reinforced polycarbonate composite material is prepared by the following steps in sequence:
(1) taking the surface density as 33g/m2The carbon fiber laid fabric and the polycarbonate film with the thickness of 0.5mm are respectively cut into squares with the size of (415 +/-5) mmX (415 +/-5) mm by using a die with the specification of 420mmX420mmX2mm to obtain single-layer carbon fiber laid fabric and single-layer polycarbonate film; wherein, the carbon fiber non-woven cloth is a product with the product type of 12K T700SC, which is purchased from the advanced aviation high-tech materials company Limited in Yixing city; polycarbonate film, a product purchased from Mianyang Longhua film Co., Ltd., having a model number of 811M;
(2) stacking 8 layers of the single-layer carbon fiber non-woven cloth into a whole carbon fiber non-woven cloth layer; alternately laminating the single-layer polycarbonate film and the whole carbon fiber non-woven cloth layer; in the carbon fiber reinforced polycarbonate composite material, the total number of layers of single-layer polycarbonate films is 10, and the uppermost layer and the lowermost layer are the single-layer polycarbonate films;
(3) after stacking, putting the carbon fiber reinforced polycarbonate composite material into a mold coated with an oily release agent, covering an upper mold plate, putting the mold into a vacuum hot press for hot pressing, wherein the temperature is increased from room temperature to 120 ℃ within 30min during hot pressing, the temperature is kept for 2h, the temperature is increased to 300 ℃ within 90min, the temperature is kept for 20min, finally, the temperature is naturally reduced, the vacuum is kept and the pressure of 5MPa is kept in the whole hot pressing process, and the mold is opened and taken out after the hot pressing is finished, so that the carbon fiber reinforced polycarbonate composite material is obtained; wherein the oily release agent is an oily release agent with the trademark LR-11 produced by the American silver crystal International (hong Kong) limited company.
The properties of the carbon fiber reinforced polycarbonate composite material prepared in this example were measured as shown in table 1.5 below:
TABLE 1.5 mechanical Properties of the composites
| Volume fraction/% of carbon fiber | Tensile strength/MPa | Tensile modulus/GPa | Flexural strength/MPa | Flexural modulus/Gpa |
| 36 | 280.4 | 22.1 | 600.5 | 22.3 |
Example 6
A carbon fiber reinforced polycarbonate composite material is prepared by the following steps in sequence:
(1) taking the surface density as 33g/m2The carbon fiber laid fabric (2) and the polycarbonate film having a thickness of 0.5mm were used in a specification of 420mmX420mmX2mmRespectively cutting the carbon fiber non-woven fabric into squares with the specification of (415 +/-5) mmX (415 +/-5) mm to obtain single-layer carbon fiber non-woven fabric and single-layer polycarbonate film; wherein, the carbon fiber non-woven cloth is a product with the product type of 12K T700SC, which is purchased from the advanced aviation high-tech materials company Limited in Yixing city; polycarbonate film, a product purchased from Mianyang Longhua film Co., Ltd., having a model number of 835F;
(2) laminating 7 layers of the single-layer carbon fiber non-woven cloth into a whole carbon fiber non-woven cloth layer; alternately laminating the single-layer polycarbonate film and the whole carbon fiber non-woven cloth layer; in the carbon fiber reinforced polycarbonate composite material, the total number of the single-layer polycarbonate films is 5, and the uppermost layer and the lowermost layer are the single-layer polycarbonate films;
(3) after stacking, putting the carbon fiber reinforced polycarbonate composite material into a mold coated with an oily release agent, covering an upper mold plate, putting the mold into a vacuum hot press for hot pressing, wherein the temperature is increased from room temperature to 120 ℃ within 30min during hot pressing, the temperature is kept for 2h, the temperature is increased to 300 ℃ within 90min, the temperature is kept for 20min, finally, the temperature is naturally reduced, the vacuum is kept and the pressure of 5MPa is kept in the whole hot pressing process, and the mold is opened and taken out after the hot pressing is finished, so that the carbon fiber reinforced polycarbonate composite material is obtained; wherein the oily release agent is an oily release agent with the trademark LR-11 produced by the American silver crystal International (hong Kong) limited company.
The properties of the carbon fiber reinforced polycarbonate composite material prepared in this example were measured as shown in table 1.6 below:
TABLE 1.6 mechanical Properties of the composites
| Volume fraction/% of carbon fiber | Tensile strength/MPa | Tensile modulus/GPa | Flexural strength/MPa | Flexural modulus/Gpa |
| 25 | 383.1 | 17.4 | 570.3 | 20.0 |
Example 7
A carbon fiber reinforced polycarbonate composite material is prepared by the following steps in sequence:
(1) taking the surface density as 33g/m2The carbon fiber laid fabric and the polycarbonate film with the thickness of 0.5mm are respectively cut into squares with the size of (415 +/-5) mmX (415 +/-5) mm by using a die with the specification of 420mmX420mmX2mm to obtain single-layer carbon fiber laid fabric and single-layer polycarbonate film; wherein, the carbon fiber non-woven cloth is a product with the product type of 12K T700SC, which is purchased from the advanced aviation high-tech materials company Limited in Yixing city; polycarbonate film, a product purchased from Mianyang Longhua film Co., Ltd., model No. 818-B;
(2) laminating 7 layers of the single-layer carbon fiber non-woven cloth into a whole carbon fiber non-woven cloth layer; alternately laminating the single-layer polycarbonate film and the whole carbon fiber non-woven cloth layer; in the carbon fiber reinforced polycarbonate composite material, the total number of the single-layer polycarbonate films is 5, and the uppermost layer and the lowermost layer are the single-layer polycarbonate films;
(3) after stacking, putting the carbon fiber reinforced polycarbonate composite material into a mold coated with an oily release agent, covering an upper mold plate, putting the mold into a vacuum hot press for hot pressing, wherein the temperature is increased from room temperature to 120 ℃ within 30min during hot pressing, the temperature is kept for 2h, the temperature is increased to 300 ℃ within 90min, the temperature is kept for 20min, finally, the temperature is naturally reduced, the vacuum is kept and the pressure of 2MPa is kept in the whole hot pressing process, and the mold is opened and taken out after the hot pressing is finished, so that the carbon fiber reinforced polycarbonate composite material is obtained; wherein the oily release agent is an oily release agent with the trademark LR-11 produced by the American silver crystal International (hong Kong) limited company.
The properties of the carbon fiber reinforced polycarbonate composite material prepared in this example were measured as shown in the following table 1.7:
TABLE 1.7 mechanical Properties of the composites
| Volume fraction/% of carbon fiber | Tensile strength/MPa | Tensile modulus/GPa | Flexural strength/MPa | Flexural modulus/Gpa |
| 15 | 140.2 | 10.7 | 280.0 | 10.1 |
Claims (5)
1. The carbon fiber reinforced polycarbonate composite material is characterized by being prepared by the following steps in sequence:
(1) the areal density is 15-33 g/m2The carbon fiber laid fabric and the polycarbonate film with the thickness of 0.2-0.5 mm are respectively cut into squares with the size of (415 +/-5) mmX (415 +/-5) mm by using a die to obtain single-layer carbon fiber laid fabric and single-layer polycarbonateAn ester film;
(2) laminating 3-9 layers of the single-layer carbon fiber laid cloth into a whole carbon fiber laid cloth layer; alternately laminating the single-layer polycarbonate film and the whole carbon fiber non-woven cloth layer; the total number of the single-layer polycarbonate films is 6-11, and the uppermost layer and the lowermost layer are the single-layer polycarbonate films;
(3) and (3) after stacking, putting the laminated steel plate into the die coated with the oily release agent, covering the die with the upper die plate, putting the laminated steel plate into a vacuum hot press for hot pressing, wherein the room temperature is increased to 120 ℃ within 30min during hot pressing, the temperature is kept for 2h, the temperature is increased to 300 ℃ within 90min, the temperature is kept for 20min, finally, the temperature is naturally reduced, the vacuum is kept and the pressure of 2-5 MPa is kept in the whole hot pressing process, and the die is opened and taken out after the hot pressing is finished.
2. The carbon fiber reinforced polycarbonate composite of claim 1, wherein: the surface density of the carbon fiber laid fabric is 20g/m2。
3. The carbon fiber reinforced polycarbonate composite material according to claim 1 or 2, wherein: the thickness of the polycarbonate film is 0.2 mm; in the carbon fiber reinforced polycarbonate composite material, the total number of the single-layer polycarbonate films is 10.
4. The carbon fiber reinforced polycarbonate composite material according to claim 1 or 2, wherein: and keeping the pressure at 5MPa when the vacuum is kept in the hot pressing process.
5. The carbon fiber reinforced polycarbonate composite of claim 3, wherein: and keeping the pressure at 5MPa when the vacuum is kept in the hot pressing process.
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| CN105965989A (en) * | 2016-05-06 | 2016-09-28 | 湖南大学 | Preparation method of carbon fiber reinforced resin composite material |
| CN107428117A (en) * | 2015-04-02 | 2017-12-01 | 三菱化学株式会社 | Layered product |
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Effective date of registration: 20240108 Address after: 437300 Chibi High Quality Development Research Institute, Building 33, High tech Zone Beautiful Health Industrial Park, Zhonghuopu Town, Chibi City, Xianning City, Hubei Province Patentee after: Hubei Haoke Carbon Material Technology Co.,Ltd. Address before: 430081 Heping Avenue 947, Wuhan City, Hubei Province Patentee before: WUHAN University OF SCIENCE AND TECHNOLOGY |