CN104139530A - Compression molding method for carbon fiber reinforced thermoplastic polyimide - Google Patents
Compression molding method for carbon fiber reinforced thermoplastic polyimide Download PDFInfo
- Publication number
- CN104139530A CN104139530A CN201410290974.8A CN201410290974A CN104139530A CN 104139530 A CN104139530 A CN 104139530A CN 201410290974 A CN201410290974 A CN 201410290974A CN 104139530 A CN104139530 A CN 104139530A
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- CN
- China
- Prior art keywords
- carbon fiber
- thermoplastic polyimide
- fiber reinforced
- compression
- tpi
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/14—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor using multilayered preforms or sheets
- B29C51/145—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor using multilayered preforms or sheets having at least one layer of textile or fibrous material combined with at least one plastics layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/12—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor of articles having inserts or reinforcements
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Moulding By Coating Moulds (AREA)
- Reinforced Plastic Materials (AREA)
Abstract
The invention discloses a compression molding method for carbon fiber reinforced thermoplastic polyimide. The compression molding method comprises the following steps of alternately and sequentially laying thermoplastic polyimide films and multilayer continuous carbon fiber braided fabrics according to a certain weight ratio; placing the laid multilayer continuous carbon fiber braided fabrics and thermoplastic polyimide films into a die; heating at the temperature of 250-280 DEG C for 1-2 minutes; pressurizing at the pressure of 1MPa for 1-2 minutes; carrying out hot press molding at the pressure of 4-8MPa for 4-8 minutes; shock cooling to be lower than 150 DEG C, and demolding. According to the method disclosed by the invention, any solvent is not introduced; the method is high in production efficiency, low in cost and simple in production process; and the carbon fiber reinforced thermoplastic polyimide, is favorable in comprehensive performance and has the tensile modulus of 5597MPa, the impact strength of 90KJ/m<2> and the bending modulus of 3768MPa.
Description
[technical field]
The present invention relates to a kind of Carbon Fiber Reinforced TPI/CF compression-moulding methods.
[background technology]
Existing composite polyimide material generally adopts prepreg, vacuum hotpressing jug forming, RTM, the low viscous resin of RFI technological requirement, and polyimides viscosity is higher, cannot meet this technological requirement.If introducing solvent, can cause in forming process solvent difficulty to deviate from and micromolecular effusion causes extrudate density to reduce.In addition, existing technique still can make goods have that fragility is large, the feature of poor toughness.And adopt existing mold pressing one-shot forming technique, and the production cycle is long, need to be at higher forming under the pressure, and production cost is high.
In view of this, the inventor, for the defect further investigation of prior art, has this case to produce then.
[summary of the invention]
Technical problem to be solved by this invention is to provide a kind of Carbon Fiber Reinforced TPI/CF compression-moulding methods.
The present invention is achieved in that
A kind of Carbon Fiber Reinforced TPI/CF compression-moulding methods, comprises as step:
Adopt thermoplastic polyimide film and multilayer continuous carbon fibre braid according to the alternate laying successively of certain weight ratio;
Good laying multilayer carbon fiber preform and thermoplastics type's Kapton are packed in mould;
At 250-280 DEG C of heating 1-2min;
1-2min pressurizes under 1MPa;
Hot-forming 4-8min under 4-8MPa;
Be quenched to 150 DEG C with bottom knockout.
Further, in described mould, scribble high-temperature silicon oil releasing agent.
Further, 32 layers of described thermoplastic polyimide films, 15 layers of described carbon fiber preforms, upper and lower thermoplastic polyimide film is each two-layer, and two layers of thermoplastic Kapton adds one deck carbon fiber preform.
Further, the thickness of described thermoplastic polyimide film is 0.03-0.06mm.
Further, the surface density 212g/m of described carbon fiber preform
2, thickness is 0.12-0.17mm.
Further, the laying weight ratio of described carbon fiber preform and thermoplastic polyimide film: thermoplastic polyimide film 40wt%～50wt%, carbon fiber 50wt%～60wt%.
The invention has the advantages that: method of the present invention is introduced without any solvent, and production efficiency is high, and cost is low, and production technology is simple the high comprehensive performance of goods: stretch modulus 5597MPa, impact strength 90KJ/m2, bending modulus 3768MPa.
[detailed description of the invention]
Thermoplastic polyimide film (the 68g/ ㎡ of same area will be cut, 0.05mm is thick, 1.41.9g/cm-3) with carbon fiber preform (212g/ ㎡, 0.15mm is thick, 1.9g/cm-3) according to thermoplastic polyimide film 40wt%～50wt%, or the ratio laying of carbon fiber 50wt%～60wt% is put into well the flat-plate molded mould of 100*200*3mm that scribbles high-temperature silicon oil releasing agent, require 32 layers of thermoplastic polyimide films, 15 layers of carbon fiber preforms, upper and lower thermoplastic polyimide film is each two-layer, two layers of thermoplastic Kapton adds one deck carbon fiber preform, after 250-280 DEG C of heating 1-2min, under 1MPa, pressurize after 1-2min, hot-forming 2-4min under 4-8MPa, when pressurize, stop mold heated, release 1min, be quenched to 150 DEG C with bottom knockout, its key property is: stretch modulus 5597MPa, impact strength 90KJ/m2, bending modulus 3768MPa, total molding time is about 5-9min.
Method of the present invention is introduced without any solvent, and production efficiency is high, and cost is low, and production technology is simple, the high comprehensive performance of goods: stretch modulus 5597MPa, and impact strength 90KJ/m2, bending modulus 3768MPa, total molding time is about 5-9min.
The foregoing is only better enforcement use-case of the present invention, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any amendment of doing, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (6)
1. a Carbon Fiber Reinforced TPI/CF compression-moulding methods, is characterized in that: comprise as step:
Adopt thermoplastic polyimide film and multilayer continuous carbon fibre braid according to the alternate laying successively of certain weight ratio;
Good laying multilayer carbon fiber preform and thermoplastics type's Kapton are packed in mould;
At 250-280 DEG C of heating 1-2min;
1-2min pressurizes under 1MPa;
Hot-forming 4-8min under 4-8MPa;
Be quenched to 150 DEG C with bottom knockout.
2. a kind of Carbon Fiber Reinforced TPI/CF compression-moulding methods as claimed in claim 1, is characterized in that: in described mould, scribble high-temperature silicon oil releasing agent.
3. a kind of Carbon Fiber Reinforced TPI/CF compression-moulding methods as claimed in claim 1, it is characterized in that: 32 layers of described thermoplastic polyimide films, 15 layers of described carbon fiber preforms, upper and lower thermoplastic polyimide film is each two-layer, and two layers of thermoplastic Kapton adds one deck carbon fiber preform.
4. a kind of Carbon Fiber Reinforced TPI/CF compression-moulding methods as claimed in claim 1, is characterized in that: the thickness of described thermoplastic polyimide film is 0.03-0.06mm.
5. a kind of Carbon Fiber Reinforced TPI/CF compression-moulding methods as claimed in claim 1, is characterized in that: the surface density 212g/m of described carbon fiber preform
2, thickness is 0.12-0.17mm.
6. a kind of Carbon Fiber Reinforced TPI/CF compression-moulding methods as claimed in claim 1, it is characterized in that: the laying weight ratio of described carbon fiber preform and thermoplastic polyimide film: thermoplastic polyimide film 40wt%～50wt%, carbon fiber 50wt%～60wt%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410290974.8A CN104139530A (en) | 2014-06-25 | 2014-06-25 | Compression molding method for carbon fiber reinforced thermoplastic polyimide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410290974.8A CN104139530A (en) | 2014-06-25 | 2014-06-25 | Compression molding method for carbon fiber reinforced thermoplastic polyimide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104139530A true CN104139530A (en) | 2014-11-12 |
Family
ID=51848941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410290974.8A Pending CN104139530A (en) | 2014-06-25 | 2014-06-25 | Compression molding method for carbon fiber reinforced thermoplastic polyimide |
Country Status (1)
| Country | Link |
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| CN (1) | CN104139530A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105479912A (en) * | 2015-11-24 | 2016-04-13 | 陕西天策新材料科技有限公司 | Continuous fiber-reinforced thermoplastic resin prepreg and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1709973A (en) * | 2005-06-30 | 2005-12-21 | 北京航空航天大学 | Inorganic nano combined fiber reinforced polyimide composite material and its preparing method |
| CN101462369A (en) * | 2008-12-30 | 2009-06-24 | 黄争鸣 | Method for preparing pipe sheet for heat-exchange facility and products produced thereby |
| CN101707929A (en) * | 2007-06-20 | 2010-05-12 | 罗地亚管理公司 | Composite polyamide article |
| CN102548739A (en) * | 2009-09-24 | 2012-07-04 | 塞特克技术公司 | Thermoplastic composites and methods of making and using same |
| CN103119209A (en) * | 2010-12-24 | 2013-05-22 | 东丽株式会社 | Method for producing carbon fiber aggregate, and method for producing carbon fiber-reinforced plastic |
-
2014
- 2014-06-25 CN CN201410290974.8A patent/CN104139530A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1709973A (en) * | 2005-06-30 | 2005-12-21 | 北京航空航天大学 | Inorganic nano combined fiber reinforced polyimide composite material and its preparing method |
| CN101707929A (en) * | 2007-06-20 | 2010-05-12 | 罗地亚管理公司 | Composite polyamide article |
| CN101462369A (en) * | 2008-12-30 | 2009-06-24 | 黄争鸣 | Method for preparing pipe sheet for heat-exchange facility and products produced thereby |
| CN102548739A (en) * | 2009-09-24 | 2012-07-04 | 塞特克技术公司 | Thermoplastic composites and methods of making and using same |
| CN103119209A (en) * | 2010-12-24 | 2013-05-22 | 东丽株式会社 | Method for producing carbon fiber aggregate, and method for producing carbon fiber-reinforced plastic |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105479912A (en) * | 2015-11-24 | 2016-04-13 | 陕西天策新材料科技有限公司 | Continuous fiber-reinforced thermoplastic resin prepreg and preparation method thereof |
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141112 |