CN109291308A - The production method of prepreg - Google Patents
The production method of prepreg Download PDFInfo
- Publication number
- CN109291308A CN109291308A CN201710608112.9A CN201710608112A CN109291308A CN 109291308 A CN109291308 A CN 109291308A CN 201710608112 A CN201710608112 A CN 201710608112A CN 109291308 A CN109291308 A CN 109291308A
- Authority
- CN
- China
- Prior art keywords
- fiber cloth
- scraper plate
- prepreg
- resin
- production method
- 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
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
- B29B15/08—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of reinforcements or fillers
- B29B15/10—Coating or impregnating independently of the moulding or shaping step
- B29B15/105—Coating or impregnating independently of the moulding or shaping step of reinforcement of definite length with a matrix in solid form, e.g. powder, fibre or sheet form
Abstract
The invention discloses a kind of production methods of prepreg comprising: the paving fiber cloth in release paper；The resin of liquid is provided in the fiber cloth；And the resin is scratched by scraper plate, so that the resin immerses the fiber cloth, obtain the prepreg, wherein the step of blade coating includes: to be scratched by the scraper plate apart from first predetermined height of fiber cloth；The scraper plate is reduced, scratches the scraper plate apart from second predetermined height of fiber cloth.The production method of prepreg according to the present invention, is scraped using scraper plate and is resinized, and the equipment investment of production line is simplified, and by successively scratching in different height to resin, ensure that the uniformity that resin is distributed in fiber cloth.
Description
Technical field
The present invention relates to field of compound material, relate more specifically to a kind of production method of prepreg.
Background technique
Prepreg, which refers to, to be impregnated in fiber or fabric in predefined conditions by resin and handles, a kind of semi-finished product material of formation
Material, current most composite materials are all by obtaining after prepreg paving and processing, therefore prepreg is in aerospace, rail
The fields such as road traffic, Leisure Sport tool has been widely used.
There are many preparation method of prepreg at present, are broadly divided into two class of dry and wet.However existing a variety of preparations
It is raw to prepreg if the quality requirement to prepreg is higher, such as when requiring the uniformity coefficient of resin distribution higher in method
The complete equipment of producing line also has a higher requirement, and the equipment of production, material and human cost are higher, and can not be used to make
Standby laboratory sample.
Therefore, it is desirable to the production method that cost further decreases when a kind of energy obtains same quality prepreg product.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of production method of prepreg, it is real by the equipment more simplified
The more evenly blade coating of existing resin guarantees to reduce cost while product quality.
A kind of production method of the prepreg provided according to the present invention, comprising: the paving fiber cloth in release paper；Described
The resin of liquid is provided in fiber cloth；And the resin is scratched by scraper plate, so that the resin immerses the fiber cloth, obtain
To the prepreg, wherein the step of blade coating includes: by the scraper plate apart from first predetermined altitude of fiber cloth
Place is scratched；The scraper plate is reduced, scratches the scraper plate apart from second predetermined height of fiber cloth.
Preferably, first preset distance be 0.8 millimeter to 1.2 millimeters, second preset distance be 0.4 millimeter extremely
0.6 millimeter.
Preferably, the step of blade coating further include: reduce the scraper plate, make the scraper plate contacted with the fiber cloth into
Row blade coating.
Preferably, in the step of paving, the release paper and the fiber cloth are located in heating plate, the offer
The step of resin of liquid includes: that the resin of solid-state or semisolid is placed in the fiber cloth；Start the heater plate
To predetermined temperature, so that the resin of solid-state or semisolid is converted into liquid.
Preferably, the predetermined temperature is 80 DEG C to 150 DEG C.
Preferably, in the paving the step of, the shape of the release paper and the fiber cloth and the heating plate
It is corresponding.
Preferably, the length of the release paper and the fiber cloth is longer than 8 centimetres of described heating plate or more.
Preferably, in the step of paving, the heating is fixed in the two sides of the release paper and the fiber cloth
On plate.
Preferably, the scraper plate is connected on automatic arm, and the automatic arm drives the scraper plate to carry out the blade coating
The step of.
Preferably, the width of the scraper plate and the width of the fiber cloth match.
Preferably, after the blade coating the step of, the production method of the prepreg further include: it is cooling, and described
Paving polyethylene film or release paper on prepreg.
The production method of prepreg according to the present invention, is scraped using scraper plate and is resinized, and the equipment investment of production line is simplified,
By successively scratching in different height to resin, the uniformity that resin is distributed in fiber cloth ensure that.
In a preferred embodiment, scraper plate is first scratched at 0.8 millimeter to 1.2 millimeters of fiber cloth, is dropped later
The low scraper plate makes it continue to scratch at 0.4 millimeter to 0.6 millimeter of fiber cloth.Additionally can further it drop
The low scraper plate, contacts scraper plate just with fiber cloth and is scratched, and operates and control each wheel by being divided into the blade coating more taken turns
Blade height in blade coating operation realizes more evenly distribution of the resin in fiber cloth.
In a preferred embodiment, on hot plate, heating plate may be implemented solid-state for release paper and fiber cloth paving
Or it is liquid that the resin of semisolid, which melts, utilizes solid-state or semisolid resinogen to can be realized merely with heating plate and scraper plate
The prepreg is made in material, and the operating environment of whole process is in heating plate, saves production line length.
In a preferred embodiment, scraper plate is connected on automatic arm, which drives scraper plate to carry out the blade coating
The step of, wherein automatic arm is more accurate to the control of blade height, have to the product thickness of prepreg, the resin uniformity higher
Promotion.
Detailed description of the invention
By referring to the drawings to the description of the embodiment of the present invention, above-mentioned and other purposes of the invention, feature and
Advantage will be apparent from.
Fig. 1 is according to the schematic diagram of the production method for the prepreg for showing first embodiment of the invention；
Fig. 2 is according to the schematic diagram of the production method for the prepreg for showing second embodiment of the invention.
Specific embodiment
Hereinafter reference will be made to the drawings, and the present invention will be described in more detail.In various figures, identical element is using similar attached
Icon is remembered to indicate.For the sake of clarity, the various pieces in attached drawing are not necessarily to scale.In addition, may not show in figure
Certain well known parts out.
Many specific details of the invention, such as structure, material, size, the processing work of component is described hereinafter
Skill and technology, to be more clearly understood that the present invention.But it just as the skilled person will understand, can not press
The present invention is realized according to these specific details.
The embodiment of the present invention provides a kind of production method of prepreg, and Fig. 1 shows the production of the prepreg of first embodiment
The schematic diagram of method, the production method of the prepreg of the present embodiment include step S101 to step S103.
In step s101, the paving fiber cloth in release paper.
Release paper can provide prepreg certain protection for preventing prepreg adhesion.Fiber cloth is, for example, carbon fiber
Wei Bu, glass fabric etc..
In step s 102, the resin of liquid is provided in the fiber cloth, resin is, for example, epoxy resin, can basis
The performance of expected prepreg selects resin.
In step s 103, the resin is scratched by scraper plate, so that the resin immerses the fiber cloth, obtained described
Prepreg.
The step of blade coating may include: to be scraped by the scraper plate apart from first predetermined height of fiber cloth
It applies；Then the scraper plate is reduced, scratches the scraper plate apart from second predetermined height of fiber cloth.Wherein,
One preset distance can be 0.8 millimeter to 1.2 millimeters, after the completion of first round blade coating, can reduce scraper plate certain altitude, so that the
Two preset distances are 0.4 millimeter to 0.6 millimeter.
The production method of prepreg according to the present invention, is scraped using scraper plate and is resinized, and the equipment investment of production line is simplified,
By successively scratching in different height to resin, the uniformity that resin is distributed in fiber cloth ensure that.
Fig. 2 shows the schematic diagram of the production method of the prepreg of second embodiment, the production sides of the prepreg of the present embodiment
Method includes step S201 to step S204.
In step s 201, the paving fiber cloth in release paper.
It, can be by release paper and fiber cloth paving in heating plate in this step.Further, the paving the step of
In, the shape of release paper and fiber cloth can be corresponding with heating plate, such as when heating plate is rectangle, release paper and fiber cloth
Also rectangle is corresponded to.Preferably, the length of release paper and fiber cloth can be longer than 8 centimetres of heating plate or more, such as than adding
Hot plate is 10 centimetres long.
When paving, the two sides of release paper and fiber cloth can be fixed in heating plate.It specifically, can be in release paper
And fiber cloth two sides setting steel bar is compressed, and is screwed, so that release paper and fiber cloth are tightly attached to heating plate
On, avoid fold.
In step S202, the resin of liquid is provided in the fiber cloth.The step of resin for providing liquid, has
Body may include: that the resin of solid-state or semisolid is placed in fiber cloth first, then starting heater plate to predetermined temperature,
So that the resin of solid-state or semisolid is converted into liquid.The predetermined temperature wherein heated can be 80 DEG C to 150 DEG C.
In step S203, the resin is scratched by scraper plate, so that the resin immerses the fiber cloth, is obtained described
Prepreg.
The step of blade coating may include: to be scraped by the scraper plate apart from first predetermined height of fiber cloth
It applies；Then the scraper plate is reduced, scratches the scraper plate apart from second predetermined height of fiber cloth.Wherein,
One preset distance can be 0.8 millimeter to 1.2 millimeters, after the completion of first round blade coating, can reduce scraper plate certain altitude, so that the
Two preset distances are 0.4 millimeter to 0.6 millimeter.Further, it is also possible to further decrease the scraper plate, make scraper plate and fiber cloth just
Contact is scratched.
In the present embodiment, scraper plate is connected on automatic arm, and automatic arm can be moved in X-axis, Y-axis, Z axis, automatically
Arm drives scraper plate movement, stroke control can be carried out, thus the step of carrying out the blade coating.
Preferably, the width of scraper plate can match with the width of fiber cloth.Automatic arm can connect controller, control
Device drives the height of the first preset distance of scraper plate present range fiber cloth to scratch back and forth according to preset program, if controlling automatic arm
Dry time, e.g. twice, then controller controls automatic arm scraper plate is declined certain distance so that scraper plate and fiber cloth away from
From for the second preset distance, continue to scratch, until resin is evenly distributed in fiber cloth, and finally fiber cloth is arrived in infiltration
In.
In step S204, the product that above-mentioned steps are obtained is cooling, and on the prepreg paving polyethylene film or
Release paper, prepreg can use immediately, can also be stand-by with refrigerated storage.
It should be noted that according to the control to solid-state or semisolid amount of resin, and to the tune of two-wheeled blade coating operation
Section, available different prepreg make few examples below.
In the first example, 1 square metre of the effective heating surface (area) (HS of heating plate, takes fiber areal densities 100g/m2Fiber cloth 1 it is flat
Square rice takes 42.8g solid-state or semisolid resin, is homogeneously disposed according to the paving of paving step and fixation of aforementioned second embodiment
In fiber cloth.Start heating plate, heating temperature is set in 85 DEG C, melts resin.Scraper plate is positioned to one end of heating plate, distance
Fiber cloth about 1mm starts first round blade coating, then declines 0.5mm, carries out the second wheel blade coating, finally adjusts scraper plate to just
Fiber cloth is contacted, third round blade coating is carried out, so that gel content can be made by above-mentioned steps in resin homogeneous immersion fiber cloth
For 30% prepreg.
In the second example, 1 square metre of the effective heating surface (area) (HS of heating plate, takes fiber areal densities 210g/m2Fiber cloth 1 it is flat
Square rice takes 140g solid-state or semisolid resin, is homogeneously disposed in fibre according to the paving of paving step and fixation of aforementioned second embodiment
On Wei Bu.Start heating plate, heating temperature is set in 80 DEG C, melts resin.Scraper plate is positioned to one end of heating plate, distance is fine
Wei Buyue 1mm starts first round blade coating, then declines 0.4mm, carries out the second wheel blade coating, until resin homogeneous immersion fiber cloth,
By above-mentioned steps, the prepreg that gel content is 40% is made.
In third example, 1 square metre of the effective heating surface (area) (HS of heating plate takes fiber areal densities 120g/m2Fiber cloth 1 it is flat
Square rice takes 120g solid-state or semisolid resin, is homogeneously disposed in fibre according to the paving of paving step and fixation of aforementioned second embodiment
On Wei Bu.Start heating plate, heating temperature is set in 90 DEG C, melts resin.Scraper plate is positioned to one end of heating plate, distance is fine
Wei Buyue 0.8mm starts first round blade coating, then declines 0.3mm, the second wheel blade coating is carried out, until resin homogeneous immersion fiber
The prepreg that gel content is 50% is made by above-mentioned steps in cloth.
It according to the production method of the prepreg of the present embodiment, is scraped and is resinized using scraper plate, the equipment for simplifying production line is thrown
Enter, by successively scratching in different height to resin, ensure that the uniformity that resin is distributed in fiber cloth.Scraper plate first exists
It is scratched at 0.8 millimeter to 1.2 millimeters of fiber cloth, reduces the scraper plate later, make it apart from 0.4 millimeter of fiber cloth
Continue to scratch to 0.6 millimeter.The scraper plate can additionally be further decreased, make scraper plate just contacted with fiber cloth into
Row blade coating operates and controls each blade height taken turns in blade coating operation by being divided into the blade coating more taken turns, realizes resin in fiber
More evenly distribution on cloth.
On hot plate, heating plate may be implemented to melt the resin of solid-state or semisolid for release paper and fiber cloth paving
For liquid, the prepreg is made using solid-state or semisolid resin raw material to can be realized merely with heating plate and scraper plate,
The operating environment of whole process is in heating plate, saves production line length.
The step of scraper plate is connected on automatic arm in the present embodiment, which drives scraper plate to carry out the blade coating,
Wherein automatic arm is more accurate to the control of blade height, by the combination of automatic arm, scraper plate and heating plate, to prepreg
Product thickness, the resin uniformity etc. have higher promotion.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
It is as described above according to the embodiment of the present invention, these embodiments details all there is no detailed descriptionthe, also not
Limiting the invention is only the specific embodiment.Obviously, as described above, can make many modifications and variations.This explanation
These embodiments are chosen and specifically described to book, is principle and practical application in order to better explain the present invention, thus belonging to making
Technical field technical staff can be used using modification of the invention and on the basis of the present invention well.The present invention is only by right
The limitation of claim and its full scope and equivalent.
Claims (11)
1. a kind of production method of prepreg characterized by comprising
The paving fiber cloth in release paper；
The resin of liquid is provided in the fiber cloth；And
The resin is scratched by scraper plate, so that the resin immerses the fiber cloth, obtains the prepreg,
Wherein, the step of blade coating includes:
It is scratched by the scraper plate apart from first predetermined height of fiber cloth；
The scraper plate is reduced, scratches the scraper plate apart from second predetermined height of fiber cloth.
2. the production method of prepreg according to claim 1, which is characterized in that first preset distance is 0.8 milli
For rice to 1.2 millimeters, second preset distance is 0.4 millimeter to 0.6 millimeter.
3. the production method of prepreg according to claim 1, which is characterized in that the step of the blade coating further include:
The scraper plate is reduced, the scraper plate is contacted with the fiber cloth and is scratched.
4. the production method of prepreg according to claim 1, which is characterized in that in the step of the paving, it is described from
Type paper and the fiber cloth are located in heating plate,
It is described provide liquid resin the step of include:
The resin of solid-state or semisolid is placed in the fiber cloth；
Start the heater plate to predetermined temperature, so that the resin of solid-state or semisolid is converted into liquid.
5. the production method of prepreg according to claim 4, which is characterized in that the predetermined temperature is 80 DEG C to 150
℃。
6. the production method of prepreg according to claim 4, which is characterized in that described in the paving the step of
The shape of release paper and the fiber cloth is corresponding with the heating plate.
7. the production method of prepreg according to claim 4, which is characterized in that the release paper and the fiber cloth
Length be longer than 8 centimetres of described heating plate or more.
8. the production method of prepreg according to claim 4, which is characterized in that in the step of the paving, it is described from
The two sides of type paper and the fiber cloth are fixed in the heating plate.
9. the production method of prepreg according to claim 1, which is characterized in that the scraper plate is connected to automatic arm
On, the step of automatic arm drives the scraper plate to carry out the blade coating.
10. the production method of prepreg according to claim 1, which is characterized in that the width of the scraper plate and the fibre
The width of dimension cloth matches.
11. the production method of prepreg according to claim 1, which is characterized in that after the blade coating the step of, institute
The production method for stating prepreg further include:
It is cooling, and paving polyethylene film or release paper on the prepreg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710608112.9A CN109291308A (en) | 2017-07-24 | 2017-07-24 | The production method of prepreg |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710608112.9A CN109291308A (en) | 2017-07-24 | 2017-07-24 | The production method of prepreg |
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| Publication Number | Publication Date |
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| CN109291308A true CN109291308A (en) | 2019-02-01 |
Family
ID=65166999
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710608112.9A Pending CN109291308A (en) | 2017-07-24 | 2017-07-24 | The production method of prepreg |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115534491A (en) * | 2022-10-10 | 2022-12-30 | 厦门复晟复合材料有限公司 | Three-layer woven fabric pre-impregnation production line |
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| CN1065831A (en) * | 1992-01-08 | 1992-11-04 | 武进县特种建筑工艺制品厂 | The preparation method of resin double-coating transparent painting and calligraphy and product |
| CN1091700A (en) * | 1993-03-01 | 1994-09-07 | 宗济族 | Two-side transparent resin painting and calligraphy preparation method and product |
| AU2007287875A1 (en) * | 2006-08-23 | 2008-02-28 | Fenotec Gmbh | Method for producing prepregs |
| CN201660759U (en) * | 2010-04-22 | 2010-12-01 | 浙江德嘉新材料有限公司 | Improved structure of coating machine |
| CN105109058A (en) * | 2015-09-02 | 2015-12-02 | 上海晋飞复合材料科技有限公司 | Process for forming composite product through plastic film used for replacing large complex mold |
| CN105196564A (en) * | 2015-09-14 | 2015-12-30 | 江苏金风科技有限公司 | Hand lay-up molding method |
| CN205255318U (en) * | 2015-12-22 | 2016-05-25 | 中山市昇隆复合材料制造有限公司 | Contain resin heating mechanism of soaking preimpregnation cloth |
-
2017
- 2017-07-24 CN CN201710608112.9A patent/CN109291308A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1065831A (en) * | 1992-01-08 | 1992-11-04 | 武进县特种建筑工艺制品厂 | The preparation method of resin double-coating transparent painting and calligraphy and product |
| CN1091700A (en) * | 1993-03-01 | 1994-09-07 | 宗济族 | Two-side transparent resin painting and calligraphy preparation method and product |
| AU2007287875A1 (en) * | 2006-08-23 | 2008-02-28 | Fenotec Gmbh | Method for producing prepregs |
| CN201660759U (en) * | 2010-04-22 | 2010-12-01 | 浙江德嘉新材料有限公司 | Improved structure of coating machine |
| CN105109058A (en) * | 2015-09-02 | 2015-12-02 | 上海晋飞复合材料科技有限公司 | Process for forming composite product through plastic film used for replacing large complex mold |
| CN105196564A (en) * | 2015-09-14 | 2015-12-30 | 江苏金风科技有限公司 | Hand lay-up molding method |
| CN205255318U (en) * | 2015-12-22 | 2016-05-25 | 中山市昇隆复合材料制造有限公司 | Contain resin heating mechanism of soaking preimpregnation cloth |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115534491A (en) * | 2022-10-10 | 2022-12-30 | 厦门复晟复合材料有限公司 | Three-layer woven fabric pre-impregnation production line |
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