CN105965989B - A kind of preparation method of Carbon fibe reinforced resin composite material - Google Patents
A kind of preparation method of Carbon fibe reinforced resin composite material Download PDFInfo
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- CN105965989B CN105965989B CN201610298600.XA CN201610298600A CN105965989B CN 105965989 B CN105965989 B CN 105965989B CN 201610298600 A CN201610298600 A CN 201610298600A CN 105965989 B CN105965989 B CN 105965989B
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 27
- 239000000463 material Substances 0.000 title claims abstract description 23
- 239000000805 composite resin Substances 0.000 title claims abstract description 18
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 88
- 239000004917 carbon fiber Substances 0.000 claims abstract description 88
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 62
- 239000002131 composite material Substances 0.000 claims abstract description 41
- 229920002239 polyacrylonitrile Polymers 0.000 claims abstract description 37
- 239000003610 charcoal Substances 0.000 claims abstract description 20
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 16
- 239000004593 Epoxy Substances 0.000 claims abstract description 12
- 239000004744 fabric Substances 0.000 claims abstract description 11
- 239000012528 membrane Substances 0.000 claims abstract description 8
- 239000011295 pitch Substances 0.000 claims description 47
- 239000004745 nonwoven fabric Substances 0.000 claims description 20
- 229920005989 resin Polymers 0.000 claims description 16
- 239000011347 resin Substances 0.000 claims description 16
- 239000000835 fiber Substances 0.000 claims description 10
- 239000011159 matrix material Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 238000007731 hot pressing Methods 0.000 claims description 7
- 239000003822 epoxy resin Substances 0.000 claims description 6
- 229920000647 polyepoxide Polymers 0.000 claims description 6
- 239000004925 Acrylic resin Substances 0.000 claims description 5
- 229920000178 Acrylic resin Polymers 0.000 claims description 5
- 238000007598 dipping method Methods 0.000 claims description 3
- 239000011304 carbon pitch Substances 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 claims description 2
- 239000002994 raw material Substances 0.000 claims description 2
- 239000012779 reinforcing material Substances 0.000 claims 1
- 238000005507 spraying Methods 0.000 claims 1
- 239000002759 woven fabric Substances 0.000 claims 1
- 230000002787 reinforcement Effects 0.000 abstract description 5
- 150000001875 compounds Chemical class 0.000 abstract description 4
- 238000007711 solidification Methods 0.000 abstract description 2
- 230000008023 solidification Effects 0.000 abstract description 2
- 239000011229 interlayer Substances 0.000 abstract 1
- 239000004918 carbon fiber reinforced polymer Substances 0.000 description 5
- 239000010408 film Substances 0.000 description 5
- 229920001187 thermosetting polymer Polymers 0.000 description 5
- 239000004743 Polypropylene Substances 0.000 description 4
- 230000002708 enhancing effect Effects 0.000 description 4
- 229920001155 polypropylene Polymers 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011160 polymer matrix composite Substances 0.000 description 2
- 229920013657 polymer matrix composite Polymers 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Classifications
-
- 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
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/005—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile
- B32B9/007—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile comprising carbon, e.g. graphite, composite carbon
-
- 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
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- 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
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/546—Flexural strength; Flexion stiffness
-
- 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
- B32B2605/00—Vehicles
- B32B2605/08—Cars
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Laminated Bodies (AREA)
- Reinforced Plastic Materials (AREA)
Abstract
The invention discloses a kind of preparation methods of Carbon fibe reinforced resin composite material, first the overlapping placement of PAN based carbon fiber charcoal cloth epoxy prepreg, pitch based carbon fiber felt body and thermoplastic resin membrane/thin plate, then hot-forming, obtained Carbon fibe reinforced resin composite material is carried out.Composite material prepared by the present invention is mainly using the pitch based carbon fiber felt body of low cost as reinforcement, reduce the cost of material of composite material, pitch based carbon fiber is in random arrangement in precast body, isotropism degree is larger, with thermoplastic resin it is compound after, improve the fracture toughness and recoverability of composite material.A certain amount of PAN based carbon fibers prepreg interlayer is added in composite inner, the strength and stiffness of composite material entirety are more preferable after solidification.
Description
Technical field
The invention belongs to polymer matrix composites technical fields.Enhance tree more particularly to a kind of Carbon fibe of body of a motor car
The preparation method of resin composite material.
Technical background
Under the promotion of the energy saving and environmentally friendly trend in the whole world, automobile industry is towards environmentally protective, lightweight, intelligentized direction
Development.The use of high-strength light carbon fiber reinforced polymer composites is one of the important channel of automobile lightweight.At present
The main problem that the strong polymer matrix composites of Carbon fibe are applied on automobile has at 2 points：On the one hand, PAN based carbon fibers are produced into
The braiding cost of this and fiber preform is higher, causes the cost of final composite material high, it is difficult to fully meet automobile
The demand of industry.On the other hand, the performance of composite material remains to be further improved.Carbon fiber reinforced polymer composites are usual
Using thermosetting resin as matrix, the thermosetting resin base fracture of composite materials poor toughness of preparation, damage tolerance are low, molding
Process-cycle is longer.Although and emerging thermoplastic resin based composite material is preferable with toughness, the processing and forming period is shorter, can
The features such as prosthetic is good, but the rigidity of material and intensity are poor.Therefore improve the mechanical performance and usability of composite material simultaneously
Can be important to its being applied on automobile.
The present invention is directed to overcome prior art insufficient, it is therefore an objective to provide a kind of Carbon fibe enhancing tree can be used for body of a motor car
The preparation method of resin-based composite, the composite material prepared with this method can not only reduce production cost, but also obviously change
It has been apt to the mechanical performance and performance of vehicle body composite material.
Invention content
The present invention is for of high cost, mechanical performance existing for carbon fiber reinforced polymer composites and performance difference
Feature, choose high intensity PAN based carbon fiber charcoal cloth and low cost pitch based carbon fiber felt body (or non-woven fabrics) collectively as
The reinforcement of composite material places heat pressing process, by adjusting preheating temperature, briquetting pressure and resin content using multilayer is overlapping
Obtain carbon fiber reinforced polymer composites.
Specific method is：PAN based carbon fibers charcoal cloth-epoxy prepreg, pitch based carbon fiber felt body (or nonwoven
Cloth) and thermoplastic resin membrane or thin plate according to overlapping placement, by hot-forming, resin matrix is made to soak at a certain temperature
Precast body, it is cooling after manufacturing cost is relatively low, Carbon fibe reinforced resin composite material of good combination property.
A kind of preparation method of Carbon fibe reinforced resin composite material includes the following steps method：
The selection of step 1) fiber preform：PAN based carbon fibers prepreg presoaks asphalt mixtures modified by epoxy resin by PAN based carbon fiber charcoal cloth
Fat obtains, and Carbon fibe is in regular array, and degree of anisotropy is larger；Pitch based carbon fiber chooses the pitch based carbon fiber felt of low cost
Body (or non-woven fabrics), Carbon fibe are in random distribution, therefore the degree of anisotropy smaller of fiber preform；The volume of Carbon fibe is filled
Rate is 25-60%, and the content of PAN based carbon fibers and pitch based carbon fiber according to the performance requirement of composite material than rationally designing.
The selection of step 2) thermoplastic resin：In order to improve the recoverability and fracture toughness of composite material, poly- third is chosen
The matrix of olefine resin (PP) or ABS resin as pitch based carbon fiber felt body (non-woven fabrics)；In order to improve the rigidity of composite material
And intensity, the PAN based carbon fiber charcoal cloth of compound pre- epoxy resin dipping in above-mentioned material.
The hot-forming process of step 3)：PAN based carbon fibers charcoal cloth-epoxy prepreg, pitch based carbon fiber felt body
(or non-woven fabrics) and thermoplastic resin membrane/thin plate carry out overlapping placement according to a graded, then carry out hot-forming, are made
The Carbon fibe reinforced resin composite material of low cost, good combination property.
Above-mentioned steps 1) in, the volumetric filling ratio of Carbon fibe is 12-60%, according to the mechanical strength of required vehicle body parts
It is required that being designed.
Above-mentioned steps 1) in, the form of pitch based carbon fiber precast body includes but not limited to Carbon fibe non-woven fabrics and Carbon fibe
Felt body, pitch based carbon fiber are in random arrangement on X-Y plane or three-dimensional.
Above-mentioned steps 1) in, the volume content ratio of pitch based carbon fiber and PAN based carbon fibers is 1:(0.25-2), according to institute
The performance requirement of vehicle body parts is needed to be designed.
Above-mentioned steps 2) in, the resin matrix of pitch based carbon fiber precast body chooses the thermoplastic resins such as polyacrylonitrile or ABS
Fat；In order to improve the shaping efficiency of composite material, resin raw material chooses the resin film (or thin plate) of different-thickness, and thickness exists
0.1mm-2mm。
Above-mentioned steps 2) in, PAN based carbon fiber prepregs choose thermosetting resin as matrix, including but not limited to epoxy
Resin.
Above-mentioned steps 3) in, according to the change pitch based carbon fiber felt body (or non-woven fabrics) of required composite materials property
Thickness.
Above-mentioned steps 3) in, according to the mechanical property of required composite material and geomery design suitable laying number and
Layering type.Layering type includes PAN based carbon fibers charcoal cloth-epoxy prepreg, pitch based carbon fiber felt body (or nonwoven
Cloth) and thermoplastic resin membrane/sheet pack added-time different order.
Above-mentioned steps 3) in, can by adjusting the technological parameters such as hot pressing parameters, including temperature, pressure and time,
To control the mechanical property, microstructure and size of carbon fiber reinforced polymer composites.Hot pressing temperature is 160-220
DEG C, pressure 0.1-40MPa, time 5-60min.
Prepared composite material is made using the pitch based carbon fiber felt body or non-woven fabrics of low cost according to the method for the present invention
For reinforcement, the cost of material of composite material is reduced, fiber random arrangement is stronger, the degree of anisotropy smaller of precast body；
After pitch based carbon fiber felt body or non-woven fabrics and thermoplastic resin are compound, improve the fracture toughness of composite material and can repair
Property, after composite material stress deformation, it is easier to be repaired.The preimpregnation of PAN based carbon fibers is added in prepared composite material
Feed collet layer, the strength and stiffness of composite material are more preferable after solidification.
The present invention has the positive effect that compared with the prior art：
1, this specific example uses inexpensive pitch based carbon fiber felt body or non-woven fabrics as main precast body, respectively to same
Property degree is big, and recoverability and toughness are preferable after being enhanced using thermoplastic resin, and the overall cost of composite material is relatively low.
2, composite material prepared by this specific example overcomes the strength and stiffness of single Carbon fibe enhancing thermoplastic resin
Poor disadvantage enhances the rigidity of composite material by compound PAN based carbon fibers charcoal cloth prepreg.
3, the pitch based carbon fiber felt body PAN based carbon fibers charcoal cloth-epoxy prepreg and gather that this specific example uses
The overlapping heat pressing process of placing of allyl resin thin-film multilayer is relatively easy, reproducible, is conducive to it on automobile body components
Large-scale production.
Description of the drawings
Fig. 1, which is that the embodiment of the present invention 1 is overlapping, places schematic diagram.
Specific implementation mode
The present invention is described further With reference to embodiment, not to the limitation of its protection domain.
Present embodiment：In the pitch based carbon fiber precast body, pitch based carbon fiber by spray spinning process at
Fibre is made after pre-oxidation and charing.It is repeated no more in embodiment.
Embodiment 1：Referring to Fig. 1
A kind of preparation method of Carbon fibe reinforced resin composite material.Choose the pitch based carbon fiber felt body conduct of low cost
The one of which reinforcement of composite material, it is of low cost；Pitch based carbon fiber is in random distribution in precast body, and isotropism degree is more
It is small；Volume fraction is 30%.Choose another kind enhancing of the PAN based carbon fibers charcoal cloth-epoxy prepreg as composite material
The volume fraction of body, fiber is 10%.Selection thickness is the thermoplastic polypropylene film of 0.5mm as pitch based carbon fiber felt body
Resin matrix.
Above-mentioned pitch based carbon fiber felt body (at 2 in Fig. 1), PAN based carbon fibers charcoal cloth-epoxy prepreg (in Fig. 1
At 3) and acrylic resin film (at 1 in Fig. 1) carry out hot pressing after overlapping place according to 1213121 order, hot pressing temperature is
180 DEG C, pressure 5MPa, time 10min, it is 1.18g/cm-3 Carbon fibe reinforced resin composite materials that density, which is made,.Through super
Sonic flaw detection detection is more than 8MPa/ (gcm-3) without layering, interlaminar shear strength, is more than 150MPa/ (g than bending strength
cm-3).After the outer layer deformation of composite material, surface reconditioning can be carried out by acrylic resin at 230 DEG C, overcome general
PAN based carbon fibers enhance the problem of thermosetting resin difficulty is repaired.
Embodiment 2
A kind of preparation method of Carbon fibe reinforced resin composite material.The pitch based carbon fiber non-woven fabrics for choosing low cost is made
For the one of which reinforcement (precast body) of composite material；Pitch based carbon fiber is in random distribution, isotropism degree in precast body
Smaller；Volume fraction is 20%.The another kind that PAN based carbon fibers charcoal cloth-epoxy prepreg is chosen as composite material increases
The volume fraction of strong body (precast body), fiber is 15%.It chooses thermoplastic polypropylene (PP) film that thickness is 0.2mm and is used as drip
The resin matrix of green based carbon fiber felt body.
Above-mentioned pitch based carbon fiber non-woven fabrics (at 2 in Fig. 1), PAN based carbon fibers charcoal cloth-epoxy prepreg (Fig. 1
In at 3) and acrylic resin film (at 1 in Fig. 1) carry out hot pressing after overlapping place according to 12121213121212121 order,
Hot pressing temperature is 200 DEG C, pressure 10MPa, time 6min, and it is multiple that the Carbon fibe reinforced resin that density is 1.13g/cm-3 is made
Condensation material.Through ultrasonic examination detection without layering, interlaminar shear strength is more than 7MPa/ (gcm-3), is more than than bending strength
135MPa/(g·cm-3).After the outer layer deformation of composite material, surface reconditioning can be carried out by acrylic resin at 230 DEG C,
Overcome the problem of general PAN based carbon fibers enhancing thermosetting resin difficulty is repaired.
Claims (4)
1. a kind of preparation method of Carbon fibe reinforced resin composite material, it is characterised in that include the following steps：
1) selection of fiber preform：Simultaneously using PAN based carbon fibers prepreg and pitch based carbon fiber felt body or PAN bases
The fiber preform of Carbon fibe prepreg and pitch based carbon fiber non-woven fabrics as composite material, wherein PAN based carbon fibers presoak
Material is obtained by the pre- epoxy resin dipping of PAN based carbon fiber charcoal cloth；Pitch based carbon fiber felt body and pitch based carbon fiber non-woven fabrics by
Pitch based carbon fiber is constituted；Wherein PAN based carbon fibers prepreg and pitch based carbon fiber felt body and PAN based carbon fiber prepregs
Total volume filling rate with pitch based carbon fiber non-woven fabrics is 10-60%；Wherein pitch based carbon fiber and PAN based carbon fibers
Volume content ratio is 1:(0.25-2)；The pitch based carbon fiber non-woven fabrics and felt body is spun by pitch based carbon fiber by spraying
Process Fiber is made after pre-oxidation and charing；
2) selection of thermoplastic resin：It is pitch based carbon fiber felt body and pitch based carbon fiber non-woven fabrics to choose acrylic resin
Matrix, PAN based carbon fiber charcoal cloth prepregs choose epoxy resin as matrix；The resin raw material of pitch based carbon fiber is chosen different
The thermoplastic resin membrane of thickness or thin plate, thickness 0.1mm-1mm；According to the change pitch of required composite materials property
The thickness of based carbon fiber felt body and pitch based carbon fiber non-woven fabrics, pitch based carbon fiber felt body and pitch based carbon fiber non-woven fabrics
Thickness is 5mm-20mm；
3) hot-forming process：PAN based carbon fibers charcoal cloth-epoxy prepreg, pitch based carbon fiber felt body or non-woven fabrics,
With the overlapping placement of thermoplastic resin membrane/thin plate, hot-forming, obtained Carbon fibe reinforced resin composite material, institute are then carried out
Thermoplastic resin membrane/the gauge of sheet stated is 0.1mm-2mm, and hot pressing temperature is 160-220 DEG C, pressure 0.1-40MPa,
Time is 5-60min；PAN based carbon fibers charcoal cloth-epoxy prepreg, pitch based carbon fiber felt body or pitch based carbon fiber without
Woven fabric and thermoplastic resin membrane/sheet pack added-time, PAN based carbon fibers charcoal cloth-epoxy prepreg are located at composite material
Intermediate or both sides, play the role of reinforcing material strength and stiffness.
2. a kind of preparation method of Carbon fibe reinforced resin composite material according to claim 1, it is characterised in that step
1) in, the total volume filling rate of PAN based carbon fibers and pitch based carbon fiber is 25-60%.
3. a kind of preparation method of Carbon fibe reinforced resin composite material according to claim 1, it is characterised in that step
1) in, pitch based carbon fiber non-woven fabrics and pitch based carbon fiber felt body are in random arrangement on X-Y plane or three-dimensional.
4. a kind of preparation method of Carbon fibe reinforced resin composite material according to claim 1, it is characterised in that step
2) in, PAN based carbon fibers charcoal cloth prepreg is made by the pre- epoxy resin dipping of PAN based carbon fiber charcoal cloth.
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| CN107059242B (en) * | 2017-04-26 | 2019-05-17 | 湖南大学 | A kind of production method of high thermal conductivity pitch based carbon fiber composite preform |
| CN110216931B (en) * | 2019-05-31 | 2021-03-30 | 华南理工大学 | Carbon fiber reinforced resin mixed laminated plate and forming method thereof |
| CN111951904B (en) * | 2020-02-03 | 2021-04-06 | 苏州鸿凌达电子科技有限公司 | Microstructure quantification and performance detection method based on carbon fiber |
| CN112480632B (en) * | 2020-12-03 | 2023-03-31 | 武汉科技大学 | Carbon fiber reinforced polycarbonate composite material |
| CN112778549B (en) * | 2021-01-26 | 2022-07-26 | 武汉科技大学 | Carbon fiber reinforced thermosetting resin-based composite material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW252128B (en) * | 1992-02-07 | 1995-07-21 | Nippon Steel Corp | |
| CN101437057A (en) * | 2007-11-16 | 2009-05-20 | 华硕电脑股份有限公司 | Mobile communication equipment and shell structure thereof |
| CN102886902A (en) * | 2012-10-12 | 2013-01-23 | 四川大学 | Method for improving impregnation effect of fiber cloth enhanced thermoplastic composite material |
| CN105073848A (en) * | 2013-03-07 | 2015-11-18 | 三菱丽阳株式会社 | Carbon-fiber-reinforced thermoplastic-resin composite material and molded body using same |
-
2016
- 2016-05-06 CN CN201610298600.XA patent/CN105965989B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW252128B (en) * | 1992-02-07 | 1995-07-21 | Nippon Steel Corp | |
| CN101437057A (en) * | 2007-11-16 | 2009-05-20 | 华硕电脑股份有限公司 | Mobile communication equipment and shell structure thereof |
| CN102886902A (en) * | 2012-10-12 | 2013-01-23 | 四川大学 | Method for improving impregnation effect of fiber cloth enhanced thermoplastic composite material |
| CN105073848A (en) * | 2013-03-07 | 2015-11-18 | 三菱丽阳株式会社 | Carbon-fiber-reinforced thermoplastic-resin composite material and molded body using same |
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Effective date of registration: 20171123 Address after: 410000 Hunan province Changsha Wenxuan High-tech Development Zone, Road No. 27 building 2202 room Yuyuan Lu Valley F1 Applicant after: HUNAN DONGYING CARBON MATERIAL TECHNOLOGY CO.,LTD. Address before: Yuelu District City, Hunan province 410082 Changsha Lushan Road No. 2 Applicant before: Hunan University |
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Denomination of invention: Preparation method of carbon fiber reinforced resin composite material Effective date of registration: 20190731 Granted publication date: 20180828 Pledgee: Bank of Changsha Limited by Share Ltd. science and Technology Branch Pledgor: HUNAN DONGYING CARBON MATERIAL TECHNOLOGY CO.,LTD. Registration number: 2019430000072 |
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Address after: Room 2202, building F1, Lugu Yuyuan, No.27 Wenxuan Road, high tech Development Zone, Changsha City, Hunan Province Patentee after: Hunan Dongying Carbon Materials Technology Co.,Ltd. Address before: Room 2202, building F1, Lugu Yuyuan, No.27 Wenxuan Road, high tech Development Zone, Changsha City, Hunan Province Patentee before: HUNAN DONGYING CARBON MATERIAL TECHNOLOGY CO.,LTD. |
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Address after: 410000, No. 467 Xianjiahu West Road, Lugu Street, Xiangjiang New District, Changsha City, Hunan Province Patentee after: Hunan Dongying Carbon Materials Technology Co.,Ltd. Country or region after: China Address before: Room 2202, building F1, Lugu Yuyuan, No.27 Wenxuan Road, high tech Development Zone, Changsha City, Hunan Province Patentee before: Hunan Dongying Carbon Materials Technology Co.,Ltd. Country or region before: China |
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