CN109927324A - A kind of three-layer co-extruded preparation method out of graphene composite heating film - Google Patents
A kind of three-layer co-extruded preparation method out of graphene composite heating film Download PDFInfo
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- CN109927324A CN109927324A CN201910157315.XA CN201910157315A CN109927324A CN 109927324 A CN109927324 A CN 109927324A CN 201910157315 A CN201910157315 A CN 201910157315A CN 109927324 A CN109927324 A CN 109927324A
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Abstract
The invention belongs to graphenes to heat field of membrane preparation, and spy is related to a kind of three-layer co-extruded preparation method out of graphene composite heating film.The processing method of first polyester film layer and third polyester film layer of the invention is " polyester → melting → extruder → slab → stretching → thermal finalization ", graphene of the middle layer with chaff/polyester complexes film processing method is " graphene/polyester complexes → melting → extruder → slab → stretching → chaff implantation → cutting → thermal finalization → winding ", in heat-setting process, graphene with chaff/polyester complexes film two sides are covered each by the first polyester film layer and third polyester film layer, by winding, graphene composite heating film is formed.Graphene composite heating film of the invention can meet the needs of various application fields there is no contact resistance layer by layer.
Description
Technical field
Heat field of membrane preparation the invention belongs to graphene, spy be related to a kind of graphene composite heating film it is three-layer co-extruded go out
Preparation method.
Background technique
With the fast development of graphene preparation technology, the application of graphene is also more mature.Wherein, graphene heating film
Technical energy saving environmental protection, meets the requirement that contemporary coal changes a series of energy environment protection policies such as electricity, is the pole of traditional house ornamentation hot-water heating technology
Good alternative scheme.
However, the preparation process of the graphene composite heating film of mainstream is simpler and cruder at present, only graphene is modulated
After composite mortar, substrate surface drying is coated or is printed on, metal chaff is to electrode, roll-in encapsulation film forming.It is this
Main problem existing for the graphene composite heating film of method preparation includes that encapsulation is not tight, is between layers actually in stripping
From state, there are contact resistance, utilization rate of electrical needs to be further increased for electrode and film, and hot-air expansion generates bubble and destroys
Multilayered structure, a series of problems, such as there are security risk and shortening product service life.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of three-layer co-extruded preparation sides out of graphene composite heating film
Method.Polyester material package graphene/polyester complexes film of the invention realizes polyester film to graphene/polyester complexes film
It is fully enclosed.Graphene composite heating film of the invention can meet the needs of various application fields there is no contact resistance layer by layer.
In order to achieve the above objectives, the present invention is realized by following technical proposal: a kind of graphene composite heating film
It is three-layer co-extruded go out preparation method, it is characterised in that: the processing method of the first polyester film layer and third polyester film layer be " polyester →
Melting → extruder → slab → stretching → thermal finalization ", the processing of graphene of the middle layer with chaff/polyester complexes film
Method is that " graphene/polyester complexes → melting → extruder → slab → stretching → chaff implantation → cutting → heat is fixed
Type → winding ", in heat-setting process, the graphene with chaff/polyester complexes film two sides are covered each by the first strata
Ester film and third polyester film layer form graphene composite heating film by winding.
According to a kind of three-layer co-extruded preparation method out of graphene composite heating film as described above, it is characterised in that: even
Continuous processing graphene composite heating film, forms graphene composite heating film group.
According to a kind of three-layer co-extruded preparation method out of graphene composite heating film as described above, it is characterised in that: the
One polyester film layer, third polyester film layer and the middle layer graphene with chaff/polyester complexes film are respectively adopted one and squeeze
Machine out forms the curtain coating unit of totally three extruders feed.
According to a kind of three-layer co-extruded preparation method out of graphene composite heating film as described above, it is characterised in that: also
Including chaff implanted device, two chaff implanted devices are in the centre of " stretching " and " cutting " Liang Ge workshop section, and two
A chaff is affixed on two long side edges of graphene/polyester complexes film respectively, is tightly attached on the inside of polyester edge sealing, metal foil
The attachment length of item is identical as graphene/length of two long sides of polyester complexes film after stretching.
According to a kind of three-layer co-extruded preparation method out of graphene composite heating film as described above, it is characterised in that: also
Including cutting machine, cutting machine is in the centre of " chaff implantation " and " thermal finalization " Liang Ge workshop section；Passing through " metal foil hedge planting
Enter " after workshop section, cutting machine work is primary, cuts off middle layer along graphene/polyester complexes film long side vertical direction, together
When stop middle layer operation, keep the first polyester film layer, the continuous operation of third polyester film layer, formed polyester sealing end, cutting
Middle layer is continued to run after the completion.
According to a kind of three-layer co-extruded preparation method out of graphene composite heating film as described above, it is characterised in that: gold
Belong to chaff implantation and uses chaff implanted device, chaff implanted device and graphene/polyester complexes film operation speed
Degree synchronizes, and the chaff implanted device stops implantation when cutting machine is cut one time, in lower piece of graphite alkene/poly-
Start the implantation of a new round after ester complexes film stretching again, so recycles, to ensure two panels adjoining graphite alkene/polyester complexes film
Spacing be 4~5cm；Before the thermal finalization the step of, the first polyester film layer, the speed of service of third polyester film layer are synchronous, the
The speed of service of three polyester film layers is faster than graphene/polyester complexes film speed of service.
According to a kind of three-layer co-extruded preparation method out of graphene composite heating film as described above, it is characterised in that: poly-
Ester particle and graphene/polyester complexes particle fusion temperature are 255 DEG C~290 DEG C, and slab temperature is 80 DEG C~100 DEG C, are drawn
Stretching temperature is 70 DEG C~90 DEG C, and heat setting temperature is 270 DEG C~280 DEG C, and winding temperature is 35 DEG C~40 DEG C.
According to a kind of three-layer co-extruded preparation method out of graphene composite heating film as described above, it is characterised in that: gold
Belong in chaff implantation process, in graphene/polyester complexes film two sides implanted metal chaff, chaff width is 1~3cm.
According to a kind of three-layer co-extruded preparation method out of graphene composite heating film as described above, it is characterised in that: poly-
Ester edge sealing is 1~5cm wide, and polyester sealing end is 1~5cm wide.
According to a kind of three-layer co-extruded preparation method out of graphene composite heating film as described above, it is characterised in that: the
Thickness range is 50~150 μm after one polyester film layer and third polyester film layer thermal finalization, graphene/polyester complexes film thermal finalization
Afterwards thickness range be 50~200 μm, chaff with a thickness of 15~50 μm.
The present invention is include at least the following beneficial effects:
(1) a kind of three-layer co-extruded preparation method out of graphene composite heating film of the bright offer of this law is compared to using tradition
Graphene composite film made of coating, printing, roll-in, has series of advantages, such as structure completely integrated, does not need using glue
Stick, be not between layers poor compatibility the problem of, each layer merges completely, edge sealing be not present interface layer, it is close
Envelope property is good.
(2) chaff is completely seamless to electrode has been implanted in graphene/polyester complexes film, nothing between electrode and film
Contact resistance.
(3) it is multiple to be substantially better than the graphene that traditional processing mode makes for the encapsulation performance of finished product graphene composite heating film
Heating film is closed, is sealed, greatly improves its waterproof and insulate grade, waterproofing grade can reach IPX8, the class of insulation
H grades can be reached.
(4) a kind of graphene composite heating film of the present invention it is three-layer co-extruded go out preparation method can also be according to graphite
The different demands of each application field of alkene composite membrane realize the control accurate for customizing film thickness.Graphene of the invention is compound
Heating film has a series of advantages compared to traditional graphene composite heating film, and production process is simple and direct efficiently, at low cost, sealing
It has excellent performance, there is no contact resistances layer by layer, and the service life is long, and waterproof insulation grade is high, and finished product film thickness is precisely adjustable, can expire
The demand of the various application fields of foot.
Detailed description of the invention
Fig. 1 is a kind of structural exploded view for graphene composite heating film that the present invention designs, the first polyester film, graphite in figure
Alkene/polyester complexes film, the second polyester film and chaff are superimposed electrode according to position in figure, actually these composition portions
It point is all to merge completely, it is seamless to be packaged together.
Fig. 2 is a kind of schematic diagram for graphene composite heating film that the present invention designs, it is seen that it is merged completely, seamless encapsulation
Basic condition later.
Fig. 3 is a kind of scale diagrams for graphene composite heating film that the present invention designs, wherein the width of chaff
For 1~3cm, the polyester edge sealing of two long sides is 1~5cm, and the sealing end spacing of adjacent two panels graphene/polyester complexes film is 4
~5cm, volume product ending end polyester sealing end is 1~5cm.
Fig. 4 is a kind of three-layer co-extruded preparation method flow chart out of graphene composite heating film of the present invention.
Description of symbols: the first polyester film 1, graphene/polyester complexes film 3, the second polyester film 2, chaff 4,
Polyester edge sealing 5, polyester sealing end 6, sealing end spacing 7, chaff width 8.
Specific embodiment
Name Resolution: integrated interlayer structure: refer to that graphene/polyester complexes film is wrapped in by polyester (PET) material
Edge sealing is merged by surrounding PET material in centre, and the PET material in sandwich of layers merges to form one with the first and second pet layers
The interlayer structure of body.
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention is explained in detail
It states.Hereby give notice that embodiments set forth herein is only a part of the embodiments of the present invention, it is not whole embodiments.It is based on
Embodiment in the present invention, those skilled in the art are different from all claims that the present invention is included in no proposition
Innovative point in the case where the embodiment created, shall fall within the protection scope of the present invention.
A kind of three-layer co-extruded preparation method out of the graphene composite heating film of embodiment 1.
As shown in Figures 1 to 4, it is multiple to be successively bonded the first polyester film 1, graphene/polyester for a kind of graphene composite heating film
Compound film 3, the second polyester film 2, graphene/3 two sides of polyester complexes film are chaff 4, and the chaff 4 of two sides forms gold
Belong to chaff to electrode, single graphene composite heating film can also include polyester edge sealing 5, and polyester edge sealing 5 is 1~5cm wide, polyester
Edge sealing 5 is that the first polyester film 1 and the second polyester film 2 are bonded.Three layers of a kind of graphene composite heating film of the invention are altogether
Preparation method is squeezed out, respectively by polyester granulate and graphene/two kinds of polyester complexes particle raw material, through " melting → extrusion → casting
After piece → stretching → chaff implantation → cutting ", independent first polyester film 1, graphene/polyester complexes film 3, the are formed
Dimer ester film 2, this process are implanted into gold in graphene/long side of polyester complexes film surface two using chaff implantation equipment
Belong to chaff to electrode, then carries out the graphene composite heating film that thermal finalization is extruded into integrated interlayer structure again, finally
Finished product film is formed by processes such as " thermal finalizations → winding ".Its finished product film thickness can also be accurate by equipment control platform
Control provides thickness and customizes service, can meet the process requirements of various applications.
Graphene/polyester complexes film is wrapped in integration that is intermediate and being formed for polyester material by membrane structure of the invention
Interlayer structure, including the first polyester film 1, graphene/polyester complexes film 3, the second polyester film 2.The realization principle of the structure is
In three-layer co-extruded equipment out, polyester film, the graphene/polyester complexes film, polyester film formed after melt extruded is formed a film, according to
After secondary fitting, heat fusion again is extruded from.
The thickness range of the first polyester film 1, the second polyester film 2 that are formed after melt extruded film forming of the invention is all 50~
150 μm, graphene/polyester complexes film 3 thickness range is 50~200 μm, the graphene composite heating formed after heat fusion
Film with a thickness of 150~500 μm, length and width is unlimited, can adjust with actual demand, and the graphene that is formed is multiple after heat fusion
The power for closing heating film is 1W/m2~1200W/m2。
The invention also discloses a kind of graphene composite heating film group, including multiple graphene composite heating films, Mei Geshi
Black alkene composite heating film includes polyester edge sealing 5, sealing end spacing 7 and polyester sealing end 6.The peripheral structure packet of graphene composite heating film
The long side polyester edge sealing 5 of 1~5cm wide is included, and rolls up the polyester sealing end 6 of the 1~5cm wide at product ending both ends, adjoining graphite alkene/
Polyester complexes film keep 4~5cm spacing, i.e., sealing end spacing 7 be 4~5cm, the chaff width 8 of two 1~3cm wide,
The length of chaff 4 is identical as graphene/polyester complexes heating film length.
Chaff 4 of the invention can be copper chaff.
The chaff 4 of a graphene/3 two sides of polyester complexes film of the invention forms chaff to electrode, metal
Chaff is to electrode respectively completely in seamless two long sides for being implanted to sandwich of layers (i.e. graphene/polyester complexes film 3), metal
Chaff 4 with a thickness of 15~50 μm, the length of chaff 4 and graphene/polyester complexes film after " stretching " workshop section
Length it is consistent.
As shown in figure 4, a kind of three-layer co-extruded preparation method out of graphene composite heating film of the invention, first layer polyester
The processing method of film and third polyester film layer is " polyester → melting → extruder → slab → stretching → thermal finalization ", middle layer band
The graphene of chaff/polyester complexes film processing method is " graphene/polyester complexes → melting → extruder → casting
Piece → stretching → chaff implantation → cutting → thermal finalization → winding ", in heat-setting process, the graphite with chaff
Alkene/polyester complexes film two sides are covered each by the first polyester film layer and third polyester film layer, and by winding, it is compound to form graphene
Heating film, Continuous maching production, can produce graphene composite heating film group.
Graphene/the polyester of first polyester film layer, third polyester film layer and middle layer with chaff of the invention is compound
An extruder is respectively adopted in object film, forms the curtain coating unit of totally three extruders feed.
The three-layer co-extruded preparation method that is integrally formed out of the present invention is to increase metal foil hedge planting to three-layer co-extruded equipment out
Enter and cutting machine functional component after, only polyester granulate and graphene/polyester composite particles need to be added in the equipment
The graphene composite heating film of integrated interlayer structure is directly obtained, finished product film thickness is precisely adjustable, can meet various applications
The process requirements of occasion.
Chaff implanted device of the present invention increases two, and chaff implanted device is in " stretching " and " cuts
Cut " centre of Liang Ge workshop section, two chaffs 4 are affixed on two long side edges of graphene/polyester complexes film respectively, tightly
It is affixed on the inside of polyester edge sealing, attachment length and two long sides of graphene/polyester complexes film after stretching of chaff
Length is identical.
Cutting machine of the present invention increases one, and cutting machine is in " chaff implantation " and " thermal finalization " Liang Ge workshop section
Between；After by " chaff implantation " workshop section, cutting machine work is primary, along graphene/polyester complexes film long side
Vertical direction cuts off middle layer, i.e. cutting graphite alkene/polyester complexes film, is simultaneously stopped operation and the chaff of middle layer
Implantation, while the continuous operation of two polyester layers up and down is kept, form the graphene composite heating of the polyester sealing end of 4~5cm wide
The precursor film of film；Cleavage site needs arbitrarily to adjust with production；Then, middle layer is continued to run, a piece of forerunner under unlatching
The production of film.
The present invention, chaff implanted device are synchronous with graphene/polyester complexes film speed of service.It is fixed in heat
Before the step of type, the first polyester film layer, the speed of service of third polyester film layer are synchronous.First polyester film layer, third layer
The speed of service of polyester film is faster than graphene/polyester complexes film speed of service, to guarantee graphene composite heating film short side
Trailing end has the polyester of 4~5cm to block.
Graphene of the present invention after " slab " → " stretching " → " chaff implantation " → " cutting " is compound to be added
Hotting mask, the first polyester film layer, third polyester film layer are in three layers of discrete state, obtain end after " thermal finalization → winding " workshop section
Product graphene composite heating film.
Polyester granulate of the present invention and graphene/polyester complexes particle fusion temperature are 255 DEG C~290 DEG C, slab
Temperature be 80 DEG C~100 DEG C, draft temperature be 70 DEG C~90 DEG C, heat setting temperature be 270 DEG C~280 DEG C, also, thermal finalization it
It also needs to wind by air-cooled cooling at 35 DEG C~40 DEG C afterwards.
The linear velocity of three-layer co-extruded equipment unit design out of the present invention is 1m/min~300m/min, wherein two
The revolving speed of polyester extruder is identical and synchronous, and the operation of graphene/polyester complexes film extruder lags behind polyester extruder 4
~5cm, and its revolving speed is identical as the speed that chaff is implanted into and synchronous.
The stretching ratio of the present invention for stretching workshop section is 2~3.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential characteristics of the invention, the present invention can be realized with other any concrete forms.Therefore,
The present embodiment is merely exemplary case, and is non-limiting.The scope of the present invention by appended claims rather than
Above description limits, it is intended to include all changes that fall within the meaning and scope of the equivalent elements of the claims in the present invention
It is interior.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described according to specific embodiment, not each embodiment
It only contains an independent technical solution, this description of the specification is merely for the sake of clarity, those skilled in the art
It should consider the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms art technology
The other embodiments that personnel are understood that.
Claims (10)
1. a kind of three-layer co-extruded preparation method out of graphene composite heating film, it is characterised in that: the first polyester film layer and third
The processing method of polyester film layer is " polyester → melting → extruder → slab → stretching → thermal finalization ", middle layer band chaff
Graphene/polyester complexes film processing method be " graphene/polyester complexes → melting → extruder → slab → stretching
→ chaff implantation → cutting → thermal finalization → winding ", in heat-setting process, graphene/polyester with chaff is multiple
Compound film two sides are covered each by the first polyester film layer and third polyester film layer, by winding, form graphene composite heating film.
2. a kind of three-layer co-extruded preparation method out of graphene composite heating film according to claim 1, it is characterised in that:
Continuous maching produces graphene composite heating film, forms graphene composite heating film group.
3. three-layer co-extruded preparation method, the feature out of a kind of graphene composite heating film according to claim 1 or 2 exist
In: the first polyester film layer, third polyester film layer and the middle layer graphene with chaff/polyester complexes film are respectively adopted one
Platform extruder forms the curtain coating unit of totally three extruders feed.
4. three-layer co-extruded preparation method, the feature out of a kind of graphene composite heating film according to claim 1 or 2 exist
In: it further include chaff implanted device, two chaff implanted devices are in " stretching " and " cutting " Liang Ge workshop section
Between, two chaffs are affixed on two long side edges of graphene/polyester complexes film respectively, it are tightly attached on the inside of polyester edge sealing,
The attachment length of chaff is identical as graphene/length of two long sides of polyester complexes film after stretching.
5. a kind of three-layer co-extruded preparation method out of graphene composite heating film according to claim 4, it is characterised in that:
It further include cutting machine, cutting machine is in the centre of " chaff implantation " and " thermal finalization " Liang Ge workshop section；Passing through " chaff
After implantation " workshop section, cutting machine work is primary, cuts off middle layer along graphene/polyester complexes film long side vertical direction,
It is simultaneously stopped the operation of middle layer, keeps the first polyester film layer, the continuous operation of third polyester film layer, polyester sealing end is formed, cuts
Middle layer is continued to run after the completion of cutting.
6. a kind of three-layer co-extruded preparation method out of graphene composite heating film according to claim 4, it is characterised in that:
Chaff implantation uses chaff implanted device, chaff implanted device and the operation of graphene/polyester complexes film
Speed sync, and the chaff implanted device cutting machine cut one time when stop implantation, lower piece of graphite alkene/
Start the implantation of a new round after polyester complexes film stretching again, so recycles, to ensure two panels adjoining graphite alkene/polyester complexes
The spacing of film is 4~5cm；Before the thermal finalization the step of, the first polyester film layer, the speed of service of third polyester film layer are synchronous,
The speed of service of third polyester film layer is faster than graphene/polyester complexes film speed of service.
7. three-layer co-extruded preparation method, the feature out of a kind of graphene composite heating film according to claim 1 or 2 exist
It is 255 DEG C~290 DEG C in: polyester granulate and graphene/polyester complexes particle fusion temperature, slab temperature is 80 DEG C~100
DEG C, draft temperature is 70 DEG C~90 DEG C, and heat setting temperature is 270 DEG C~280 DEG C, and winding temperature is 35 DEG C~40 DEG C.
8. three-layer co-extruded preparation method, the feature out of a kind of graphene composite heating film according to claim 1 or 2 exist
In: in chaff implantation process, in graphene/polyester complexes film two sides implanted metal chaff, chaff width is 1~
3cm。
9. a kind of three-layer co-extruded preparation method out of graphene composite heating film according to claim 5, it is characterised in that:
Polyester edge sealing is 1~5cm wide, and polyester sealing end is 1~5cm wide.
10. a kind of three-layer co-extruded preparation method out of graphene composite heating film according to claim 1 or 2, feature
Be: thickness range is 50~150 μm after the first polyester film layer and third polyester film layer thermal finalization, graphene/polyester complexes
After film thermal finalization thickness range be 50~200 μm, chaff with a thickness of 15~50 μm.
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| CN107820340A (en) * | 2017-12-14 | 2018-03-20 | 青岛冠锐碳纤维科技有限公司 | graphene heating film and its production method |
| CN108248120A (en) * | 2017-12-29 | 2018-07-06 | 无锡格菲电子薄膜科技有限公司 | Graphene composite heating film |
| CN108329679A (en) * | 2018-02-02 | 2018-07-27 | 江苏洛基木业有限公司 | A kind of preparation method of solvent-free graphene electric-heating thin film |
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- 2019-03-01 CN CN201910157315.XA patent/CN109927324A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017178841A1 (en) * | 2016-04-15 | 2017-10-19 | Fgv Cambridge Nanosystems Limited | Heater elements, heat exchangers and heater element arrays |
| CN105898907A (en) * | 2016-06-12 | 2016-08-24 | 杭州白熊科技有限公司 | Graphene heating film and preparation method thereof |
| CN107635296A (en) * | 2017-09-13 | 2018-01-26 | 合肥微晶材料科技有限公司 | A kind of graphene nano silver wire composite and flexible heating membrane module |
| CN107820340A (en) * | 2017-12-14 | 2018-03-20 | 青岛冠锐碳纤维科技有限公司 | graphene heating film and its production method |
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