CN106965463B - A kind of continuous fiber reinforced composites processing method - Google Patents
A kind of continuous fiber reinforced composites processing method Download PDFInfo
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- CN106965463B CN106965463B CN201710317393.2A CN201710317393A CN106965463B CN 106965463 B CN106965463 B CN 106965463B CN 201710317393 A CN201710317393 A CN 201710317393A CN 106965463 B CN106965463 B CN 106965463B
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- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/504—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC] using rollers or pressure bands
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Reinforced Plastic Materials (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The present invention relates to fiber-reinforced resin matrix compound material processing, belong to field of high polymer material processing.A kind of continuous fiber reinforced composites processing method, gradient solidified resin ontology is impregnated into fiber cloth by this method, then occur to solidify for the first time under the first solidification temperature, then material is sheared, after being stacked into three-dimensional target shape, pressurized, heated is carried out, promotes second of curing reaction to occur, finally obtains solid product.This method realizes variety classes resin and the fiber cloth serialization of various material is compound, foreshorten to original 5~6 hours composite material preparation times in 5 minutes, greatly improve forming efficiency, breach " Gao Chengben, poor efficiency " bottlenecks that continuous fiber reinforced composites are faced in the civil fields high volume applications such as automobile, reduce hand process, the consistency of product is effectively improved, meets high-volume manufacture and requires.
Description
Technical field
The present invention relates to processing of high molecular material methods more particularly to a kind of continuous fiber reinforced composites to add
Work method.
Background technique
Continuous fiber reinforced composites have the characteristics such as high specific strength, high ratio modulus, corrosion-resistant, energy-absorbing,
The fields such as automobile, rail traffic, aerospace, which have, to be widely applied.
Existing continuous fiber reinforced composites manufacturing process such as autoclave, prepreg, RTM etc., forming process
More, time length, low efficiency are unable to satisfy growing high-volume manufacture and application requirement, and manufacturing cost is higher, limits
The application range of continuous fiber reinforced composites.
Therefore, a kind of processing technology is simple and the higher continuous fiber reinforced composites processing side of production efficiency
Method is urgently needed for current field of high polymer material processing.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of continuous fiber reinforced composites processing method,
Solve in the prior art that continuous fiber reinforced composites processing method processing technology is complicated, processing efficiency is low asks
Topic.
Technical solution
A kind of continuous fiber reinforced composites processing method, step include:
(1) by resin body A1, the resin body A2 and the corresponding curing agent of resin body A1 of two kinds of different solidification temperatures
The corresponding curing agent a2 of a1, resin body A2 is uniformly mixed, and obtains gradient solidified resin ontology.
(2) it will be sprayed in the fiber cloth of various material after the heating of gradient solidified resin ontology, then by various material
Fiber cloth is stacked together, and forms hygrometric state fiber cloth.
(3) hygrometric state fiber is arranged in progress first stage solidification under the first solidification temperature, promotes resin body A1 solid
It is cured under agent a1 effect, is then reduced to room temperature, obtains the first cured fiber cloth.A2, a2 are in first solidification temperature
Under be still ontology, be not cured, so the first cured fiber cloth shows as the semisolid between liquid and solid-state.
(4) the first cured fiber cloth is cut into specific shape, then by the first cured fiber cloth of multilayer specific shape
It is sequentially overlapped, forms the three-dimensional shape that production needs, then pressurization promotes mutually viscous between each the first cured fiber of layer cloth
Even, performed polymer is formed.
(5) performed polymer is heated to the second solidification temperature under pressurised conditions, makes A2, a2 that second stage solidification occur, obtains
To solid product.
Further, viscosity of the gradient solidified resin ontology described in step (2) in spray is 10~100mpa.s, described
The viscosity of gradient solidified resin ontology is 2000~5000mpa.s in hygrometric state fiber cloth in step (2)；First is solid in step (3)
Changing the common viscosity of resin and resin body in fiber cloth is 10000~30000mpa.s；In the step (4), on performed polymer
Resin and resin body common viscosity be 2000~3000mpa.s.The viscosity of each step described above passes through change temperature
Degree is adjusted, and variety classes resin or resin and bulk mixture, temperature, the relationship of viscosity are determined by resin material this figure property
It is fixed.
Further, hygrometric state fiber is arranged in progress first stage solidification under the first solidification temperature in the step (3), refers to
Hygrometric state fiber is arranged in hot-pressing roller, the fiber cloth and gradient solidified resin ontology for making multilayer unlike material are in hot pressing roller pressure
Under the action of fit into one layer, while accurate control hot pressing roll temperature is in hygrometric state fiber cloth under the first solidification temperature and occurs
First stage curing reaction forms the first cured fiber cloth.
Further, the step (5) merges with step (4), is risen during step (4) carry out press molding
Temperature promotes A2, a2 to be cured, and obtains solid product.
Further, the A1 and a1 quality sum are (A1+a1)；The A2 and a2 quality sum are (A2+a2), (A1+
It a1 is) 0.01~0.1:1, preferably 0.03~0.06:1 with (A2+a2) mass ratio.
Further, the fiber cloth of various material described in step (2) preferably be selected from carbon fiber, glass fibre, aramid fiber,
The multi-shaft warp knitting cloth or one direction woven cloth of plant fiber.
Further, the A1 is preferably one of bisphenol A type epoxy resin, glycerol ester type epoxy resin or a variety of, a1
Preferably one of diethylenetriamine, triethylene tetramine, tetraethylenepentamine or a variety of；The A2 is preferably bisphenol type epoxy
One of resin, glycerol ester type epoxy resin are a variety of, and a2 is preferably Meng's alkane diamines, isophorone diamine, N- aminoethyl piperazine
One of piperazine is a variety of.
Further, it is 1:0.05~0.43 that the mass ratio of the A1 and a1, which is the mass ratio of 1:0.05~0.43, A2 and a2,.
Further, when A1 is one of bisphenol A type epoxy resin, glycerol ester type epoxy resin or a variety of, a1 is diethyl
One of alkene triamine, triethylene tetramine, tetraethylenepentamine are a variety of, and A2 is bisphenol A type epoxy resin, glyceride type asphalt mixtures modified by epoxy resin
One of rouge is a variety of, when a2 is one of Meng's alkane diamines, isophorone diamine, N- aminoethyl piperazine or is a variety of, step
(2) when viscosity of the ontology of gradient solidified resin described in spray is 10~100mpa.s, temperature corresponding to material is 20
~25 DEG C, preferably 25 DEG C；In the step (2) in hygrometric state fiber cloth gradient solidified resin ontology viscosity be 2000~
When 5000mpa.s, temperature corresponding to material is 35~65 DEG C；Resin and resin sheet on first cured fiber cloth in step (3)
When the common viscosity of body is 10000~30000mpa.s, temperature corresponding to material is 20~25 DEG C, preferably 25 DEG C；It is described
In step (5), the second solidification temperature is 80~160 DEG C, and the second curing reaction time was 1~5min at a temperature of this.
Beneficial effect
Ladder in the step of present invention provides a kind of continuous fiber reinforced composites processing method, this method (2)
Spending viscosity of the solidified resin ontology in spray is 10~100mpa.s, and lower spray viscosity peomotes the gradient of liquid
Solidified resin bulk flow improves gradient solidified resin ontology dipping in the fibre, make gradient solidified resin ontology with it is a variety of
The fiber cloth mixing of material is more uniform.In the step of this method (2) in hygrometric state fiber cloth gradient solidified resin ontology viscosity
It is easy to process convenient for hygrometric state fiber cloth and the UF membrane of being isolated in processing unit (plant) for 2000~5000mpa.s.In step (3)
The common viscosity of resin and resin body is 10000~30000mpa.s on one cured fiber cloth, and biggish viscosity makes first
Cured fiber cloth is more convenient for cutting, non-stick knife, and facilitates automated handling and the transmission of robot, improves processing efficiency.It is described
In step (5), the second solidification temperature is 80~120 DEG C, and the curing molding of material can be realized in 1~5 minute, improves processing
Efficiency.
From entire processing technology, this method realizes variety classes resin and the fiber cloth serialization of various material is multiple
Three-dimensional objects required for closing, generating, this method foreshorten to original 5~6 hours composite material preparation times in 5 minutes,
Forming efficiency is greatly improved, continuous fiber reinforced composites is breached and is answered in the civil fields such as automobile high-volume
With " the Gao Chengben, poor efficiency " bottlenecks faced, hand process is reduced, effectively improves the consistency of product, meets high-volume
Manufacture requires.
Detailed description of the invention
Fig. 1 is continuous fiber reinforced composites flow process chart of the present invention；
Fig. 2 is the schematic diagram for the fiber cloth that gradient solidified resin ontology is sprayed to various material in the present invention；
Fig. 3 is that the fiber cloth of various material of the present invention stacks and first stage solidification operation principle schematic diagram；
Wherein: 1- gradient solidified resin ontology input unit, the fiber cloth unwinding device of 2- various material, 3- spray mixing
Device, 31- gradient solidified resin ontology mixing arrangement, the first spray head of 32-, the second spray head of 33-, 34- third spray head,
35- the first fiber cloth guide roller, 36- the second fiber cloth guide roller, 37- third fiber cloth guide roller, the fiber of 4- various material
Cloth is stacked to be solidified with the first stage, and 41- isolation film unreels, the compound hot-pressing roller of 42- first, the winding of 43- isolation film, and 44- second is multiple
Close hot-pressing roller, 5- the first cured fiber cloth Scissoring device, the stack device of 6- the first cured fiber cloth, 7- second stage solidification with
Pressurizing device, the crawl of 8- molded part and device for pilling.
Specific embodiment
Combined with specific embodiments below and attached drawing, the present invention is further explained.
Embodiment 1
Using schematic device shown in attached drawing 1~3, make composite anti-collision beam hygrometric state die forming:
Prepare gradient solidified resin ontology, including bisphenolA-glycidol ether epoxy resin 3.0Kg, diethylenetriamine
0.75Kg, tetrahydrophthalic acid 2-glycidyl ester epoxy resin 97.0Kg, Meng's alkane diamines 29.1Kg.The gradient solidified resin
Ontology is 10mpa.s in 25 degrees Celsius of lower viscosity.Epoxy resin and diethylenetriamine are at 50 DEG C in the gradient solidified resin ontology
First stage solidification occurs, epoxy resin and Meng's alkane diamines solidify in 120 DEG C of generation second stage.
It is arranged with 0 ° of carbon cloth, 45 ° of carbon cloths of ﹢, 45 ° of glass fabrics of ﹣, 90 ° of glass fabrics in various material
Fiber cloth unwinding device 2 on synchronize and unreel, the gradient solidified resin ontology in gradient solidified resin ontology input unit 1 is passed through
It crosses on the spray to each fiber cloth unreeled of spraying and mixing device 3, forms hygrometric state fiber cloth；
Then hygrometric state fiber cloth is pulled into 50 DEG C of the first compound hot-pressing roller 42, between the second compound hot-pressing roller 44,
Obtain the first cured fiber cloth.Epoxy resin and diethylenetriamine in hygrometric state fiber cloth are cured reaction, and epoxy resin
It is not up to reaction temperature with Meng's alkane diamines, the overall viscosity of material is controlled in 2000mpa.s at this time；
First cured fiber cloth is restored to 25 DEG C, the control of material overall viscosity exists under chill roll cooling effect
10000mpa.s, then the first cured fiber cloth is cut into predetermined shape by the first cured fiber cloth Scissoring device 5, and by first
The stack device 6 of cured fiber cloth is transported in press die and stacks into the shape of automobile buffer beam；
The first cured fiber for being stacked into collision prevention girders shape pressurizes by second stage solidification with pressurizing device 7, and heats up
To 80 DEG C, resin viscosity is 2000mpa.s at this time, and in hereafter 30~60 seconds, epoxy resin and Meng's alkane diamines are cured reaction,
Viscosity quickly increases, and the first cured fiber completes second stage solidification, product solidified forming in 3 minutes；After solidified forming, at
The crawl of type part and device for pilling 8 grab composite product, complete the automobile buffer beam manufacture of composite material.
Embodiment 2
Using schematic device shown in attached drawing 1~3, make composite material automobile B column hygrometric state die forming:
Prepare gradient solidified resin ontology, including bisphenolA-glycidol ether epoxy resin 5Kg, triethylene tetramine
1.05Kg, methylol bisphenolA-glycidol ether epoxy resin 95Kg, isophorone diamine 33.25Kg.The gradient solidified resin
Ontology is 90mpa.s in 25 degrees Celsius of lower viscosity.Epoxy resin E44 and triethylene tetramine are 50 in the gradient solidified resin ontology
DEG C occur the first stage solidification, epoxy resin and isophorone diamine solidify in 120 DEG C of generation second stage.
It synchronizes and unreels with 0 °/± 45 ° warp knit carbon cloths, 45 ° of aryl fiber cloths of ﹣, 90 ° of glass fabrics, gradient is consolidated
Change on resin body spray to each fiber cloth unreeled, forms hygrometric state fiber cloth；
Then hygrometric state fiber cloth is pulled between 65 DEG C of hot-pressing roller, obtains the first cured fiber cloth.Hygrometric state fiber
Epoxy resin and triethylene tetramine in cloth are cured reaction, and epoxy resin and isophorone diamine not up to react temperature
Degree, the overall viscosity of material is controlled in 3000mpa.s at this time；
First cured fiber cloth is restored to 25 DEG C, the control of material overall viscosity exists under chill roll cooling effect
Then first cured fiber cloth is cut into predetermined shape, and is transported in press die and is folded by robot by 13000mpa.s
Put into the shape of automobile B-column；
The first cured fiber of automobile B-column shape is stacked into through being overpressurized, and is warming up to 100 DEG C, resin viscosity is at this time
3000mpa.s, in hereafter 30~60 seconds, epoxy resin and isophorone diamine are cured reaction, and viscosity quickly increases, and first
Cured fiber completes second stage solidification, product solidified forming in 5 minutes；After solidified forming, manipulator grabs composite material
Product completes the automobile B-column manufacture of composite material.
Above-mentioned specific embodiment be only to clearly illustrate example of the present invention, and not to embodiment
It limits.For those of ordinary skill in the art, other different forms can also be made on the basis of the above description
Variation or variation, there is no necessity and possibility to exhaust all the enbodiments, and thus amplifies out apparent
Variation or change still in protection scope of the present invention.
Claims (7)
1. a kind of continuous fiber reinforced composites processing method, which is characterized in that step includes:
(1) by resin body A1, the resin body A2 and the corresponding curing agent a1 of resin body A1, tree of two kinds of different solidification temperatures
The corresponding curing agent a2 of rouge ontology A2 is uniformly mixed, and obtains gradient solidified resin ontology；
(2) it will be sprayed in the fiber cloth of various material after the heating of gradient solidified resin ontology, then by the fiber of various material
Cloth is stacked together, and forms hygrometric state fiber cloth；
(3) hygrometric state fiber is arranged in progress first stage solidification under the first solidification temperature, promotes resin body A1 in curing agent
It is cured under a1 effect, is then reduced to room temperature, obtains the first cured fiber cloth；
(4) the first cured fiber cloth is cut into specific shape, then successively by the first cured fiber cloth of multilayer specific shape
Superposition forms the three-dimensional shape that production needs, and then pressurization promotes stick to each other between each the first cured fiber of layer cloth, shape
At performed polymer；
(5) performed polymer is heated to the second solidification temperature under pressurised conditions, makes A2, a2 that second stage solidification occur, consolidate
The product of state；
Viscosity of the gradient solidified resin ontology in spray is 10~100mpa.s in the step (2)；Hygrometric state is fine in step (2)
The viscosity of the upper gradient solidified resin ontology of Wei Bu is 2000~5000mpa.s；In step (3) on the first cured fiber cloth resin and
The common viscosity of resin body is 10000~30000mpa.s；In the step (4), resin and resin body on performed polymer
Common viscosity be 2000~3000mpa.s；
The viscosity in above-mentioned each stage is the temperature by controlling material, to reach required viscosity.
2. continuous fiber reinforced composites processing method as described in claim 1, it is characterised in that: the step
(3) hygrometric state fiber is arranged in progress first stage solidification under the first solidification temperature in, refers to hygrometric state fiber being arranged in hot-pressing roller
In, so that the fiber cloth of multilayer unlike material and gradient solidified resin ontology is fitted into one layer under the action of hot pressing roller pressure, together
When accurately control hot pressing roll temperature, so that hygrometric state fiber cloth is under the first solidification temperature generation first stage curing reaction, formed
First cured fiber cloth.
3. continuous fiber reinforced composites processing method as described in claim 1, it is characterised in that: the A1 with
A1 quality sum is (A1+a1), A2 and a2 quality sum is (A2+a2), (A1+a1) and (A2+a2) mass ratio be 0.01~
0.1:1.
4. continuous fiber reinforced composites processing method as claimed in claim 3, it is characterised in that: the A1 is
One of bisphenol A type epoxy resin, glycerol ester type epoxy resin are a variety of, and a1 is diethylenetriamine, triethylene tetramine, tetrem
One of five amine of alkene is a variety of；The A2 be one of bisphenol A type epoxy resin, glycerol ester type epoxy resin or a variety of,
A2 is one of Meng's alkane diamines, isophorone diamine, N- aminoethyl piperazine or a variety of.
5. continuous fiber reinforced composites processing method as claimed in claim 4, it is characterised in that: step (2)
Viscosity of the middle gradient solidified resin ontology in spray is 10~100mpa.s, and temperature corresponding to material is 20~25 at this time
℃；The viscosity of gradient solidified resin ontology is 2000~5000mpa.s in hygrometric state fiber cloth in step (2), and material institute is right at this time
The temperature answered is 35~65 DEG C；In step (3) on the first cured fiber cloth the common viscosity of resin and resin body be 10000~
30000mpa.s, temperature corresponding to material is 20~25 DEG C at this time；The second solidification temperature is 80~160 DEG C in step (5).
6. continuous fiber reinforced composites processing method as described in claim 1, it is characterised in that: step (2)
Described in various material fiber cloth be selected from carbon fiber, glass fibre, aramid fiber, plant fiber multi-shaft warp knitting cloth or
One direction woven cloth.
7. continuous fiber reinforced composites processing method as claimed in claim 3, it is characterised in that: the A1 with
The mass ratio of a1 is that the mass ratio of 1:0.05~0.43, A2 and a2 are 1:0.05~0.43.
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| CN109968691B (en) * | 2017-12-27 | 2020-12-08 | 中国科学院宁波材料技术与工程研究所 | Fiber thermoplastic casting vibration infiltration pre-dipping machine |
| CN108904878B (en) * | 2018-06-22 | 2022-01-07 | 朱波 | Preparation and structure of thermosetting carbon fiber composite artificial limb |
| CN111168905A (en) * | 2018-11-13 | 2020-05-19 | 上海伟贞实业有限公司 | Preparation method of epoxy resin profile |
| JP7167688B2 (en) * | 2018-12-18 | 2022-11-09 | 住友ゴム工業株式会社 | How to inspect composite ply materials |
| CN109735996B (en) * | 2018-12-21 | 2021-09-17 | 北京机科国创轻量化科学研究院有限公司 | Low-abrasion three-dimensional forming method for Z-direction fibers of composite material |
| CN110804195B (en) * | 2019-11-06 | 2022-07-08 | 吉林市东奇科技有限公司 | Preparation method of polymer fiber reinforced resin matrix composite material |
| CN111469243B (en) * | 2020-03-23 | 2022-03-15 | 上海工程技术大学 | Quick preparation facilities of plant fiber reinforced composite material plywood |
| CN114311731A (en) * | 2021-12-29 | 2022-04-12 | 中国航空制造技术研究院 | Segmented curing molding method for high-temperature-resistant bismaleimide resin-based composite material |
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| CN102225624A (en) * | 2011-05-27 | 2011-10-26 | 常州市华星新材料科技有限公司 | Forming process of composite board of continuous fiber base cloth and thermoplastic resin |
| CN105008113A (en) * | 2013-02-26 | 2015-10-28 | 赫克赛尔控股有限责任公司 | Manufacture of a moulded part |
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| CN104960211B (en) * | 2015-05-27 | 2017-08-25 | 郑州大学 | FRP muscle preparation technology and FRP muscle preparation facilities |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102225624A (en) * | 2011-05-27 | 2011-10-26 | 常州市华星新材料科技有限公司 | Forming process of composite board of continuous fiber base cloth and thermoplastic resin |
| CN105008113A (en) * | 2013-02-26 | 2015-10-28 | 赫克赛尔控股有限责任公司 | Manufacture of a moulded part |
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