CN104479156B - Polyamic Acid Film, its preparation method and facility that a kind of side is strengthened - Google Patents
Polyamic Acid Film, its preparation method and facility that a kind of side is strengthened Download PDFInfo
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- CN104479156B CN104479156B CN201410840109.6A CN201410840109A CN104479156B CN 104479156 B CN104479156 B CN 104479156B CN 201410840109 A CN201410840109 A CN 201410840109A CN 104479156 B CN104479156 B CN 104479156B
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Abstract
Polyamic Acid Film, its preparation method and facility that the present invention strengthens for a kind of side, this film avris are gradually decreased with close to outer rim solvent, and solvent is symmetrical with film longitudinal centre line.Preparation method gradually increases, the blast of film surface is symmetrical with plenum chamber longitudinal median plane to change plenum chamber top sides side air-out mouthful in salivation hot-air oven with close to static pressure box wall air quantity.To the Polyamic Acid Film avris local heating peeled off on steel band.Hot-air oven plenum chamber top sides side air-out mouthful bore gradually increases with close to static pressure box wall in facility, symmetrical with plenum chamber longitudinal median plane.Heating tube is just installed above and/or under avris from the Polyamic Acid Film traveling process peeled off on steel band, its setting height(from bottom) is symmetrical with the vertical plane on film longitudinal centre line.The avris solvent of film two is reduced, intensity increase, is difficult to clip broken and is pulled open, improves thin film yield.This law and facility only need local flow improvement, it is easy to implement.
Description
Technical field
The present invention relates to Kapton manufacturing technology, specially a kind of Polyamic Acid Film of side reinforcement, its system
Preparation Method and facility.
Background technology
Kapton is the high score with the excellent properties such as high intensity, high tenacity, abrasion performance, high temperature resistant, corrosion-resistant
Sub- material, is the predominating insulation for making various medium-to-high grade electrotechnical, electronic components, is widely used in electrotechnical, electronic industry.Mesh
The manufacturing process of preceding Kapton is that, using polyamic acid resin solution as raw material, salivation obtains self-supporting on slobbering machine
Polyamic Acid Film, then obtain Kapton by heating stretching, high temperature imidization, cooling and shaping processing.
As downstream application product is light, thin, short, small and High Reliability Design requirement, the film thickness specification of the market demand
Tend to slimming, higher requirement is proposed to its manufacturing technology, product quality particularly product yield.
In Kapton manufacturing process, required for the conventional manufacturing process using drawing and setting or tensioning sizing reaches
Thickness and traditional performance.It is required to grip Kapton semi-finished product polyamic acid when drawing and setting or tensioning sizing
Two sides of film, apply horizontal force, i.e., to thin by the clamping device of film both sides to film under the high temperature conditions
Film carries out cross directional stretch.It is also required to grip the side of film two during longitudinal stretching, it is to avoid film is deformed and subtracted to central reduction
Small width.
For example when Kapton is produced, it is typically to be molded polyamic acid resin on slobbering machine by salivating mode
For Polyamic Acid Film, imidization processing is carried out by high temperature furnace afterwards Kapton is made.Will in imidization
The bilateral of semi-finished product film is gripped, and film is carried out cross directional stretch or tensioning processing under clamp position, and keep this shape
State completes high temperature imidization, to improve the traditional performance of film.
The clamping device of existing film line both sides be mainly installed in ring-shaped guide rail chain on chain pincers or
Pin is buckled.Vertically and horizontally stretching is intended to need higher temperature to the imidization that film carries out high-temperature process, particularly Polyamic Acid Film
Processing, maximum processing temperature is up to 500 DEG C.Chain in production line and chain pincers or pin thereon buckle warm in high temperature environments
Degree is also increased, when stretching entry position clamping film easily because high temperature causes film side to clip broken or tear, side
The damaged film in side follow-up stretching, imidization, shape and open in the technical process such as folder easily in chain pincers pincers mouthful position or
Pin, which is buckled thorn button bit and put, to be caused de- pincers or dropout and is pulled open, reduction film stretching quality, or even film can not normally be wound, and be reduced
Thin film yield, has a strong impact on film line yield.
Meanwhile, the edge of Polyamic Acid Film upwarps phenomenon due to too thin easy generation, and chain pincers makes film side when clamping
It is folded into double-deck side.High temperature is run into double-deck side clamping process so that chain pincers clip position film is easily torn, and again results in production
Product can not normally be wound, and reduce product yield.
On actual production line, the pincers of opening of Kapton is closely located to draw wrap-up, and film is drawn when driving pincers
Stretch the comprehensive functions such as stress, drawing tension and winding tension and the rupture of membranes phenomenon such as raw edges, transverse breakage easily occur, thus film without
Method is normally wound, and has a strong impact on thin film yield, reduces film yield.
The problems such as in order to solve edge damage, film breakage in Kapton manufacturing process, the patent Shen of correlation is occurred in that in recent years
Please, such as Chinese utility model patent " the entering pincers guide device of membrane production equipment ", openly of the notification number for CN202245464U
The Chinese invention patent chain pincers cooling device of machinery " film production ", Publication No. number for CN102441987A
In CN102431161A Chinese invention patent " film line in advance clip opening device ", Publication No. CN102390112A
State's patent of invention " film drawing and setting or the film clamping device of film for being tensioned modular system ", notification number is in CN203236699U
State's utility model patent " one kind solves film stretching rupture of membranes and thickness homogeneous system ", is filled wherein individually disclosing and being guided into pincers
Put, chain pincers cooling device, in advance clip opening device and clamping device etc., although make clamping device cause to clip broken or Tear Film
Some reductions of the problem of side, but fail to that such failure is completely eliminated.And these devices are required to existing production line
Equipment is transformed or replaced, and apparatus structure is complex, also needs higher improvement cost, therefore is difficult to be widely implemented application.
In addition Publication No. CN102416684A Chinese invention patent " adhesive tape processing method in film production of slobbering machine ", public
Chinese invention patent " method for adhesive tape treatment in production of thin film by casting machine " that the number of opening is CN102303388A, notification number are
CN202147343U Chinese utility model patent " polyimide film producing device of automatic erasing releasing agent " etc. is to pass through
Improving manufacturing process processing salivation adhesive tape causes rupture of membranes, film breakage etc. abnormal, and regulation technological parameter is more, and adjustable range is big, especially
Be introduce such as wipe releasing agent can cause film too it is smooth can not normal use in the side effect of downstream product.
The content of the invention
It is an object of the invention to provide the Polyamic Acid Film that a kind of side is strengthened, the horizontal fixed width of two side parts one of film
Gradually decreased in the range of degree with close to outer rim solvent, because of the reduction of side parts film internal solvent content its intensity increase,
Be not susceptible to clip broken when clamped or raw edges failure, it is ensured that the quality of film, improve thin film yield.
A kind of preparation method for the Polyamic Acid Film strengthened it is a further object of the present invention to provide side, changes hot blast and dries
One or more plenum chamber top sides sidepieces separate air port in case, the side parts one fixed width for making one or more plenum chambers horizontal
In the range of, gradually increase with close to static pressure box wall air quantity, increase the evaporation capacity of film side parts solvent, it is thin to reduce
The solvent of film side parts is so as to improve intensity.
Another object of the present invention is that Polyamic Acid Film that a kind of side of design is strengthened prepares facility, the heat configured
The air outlet of side parts is gradually increased with close to static pressure box wall, bore at the top of one or more plenum chambers in wind baking oven, with
Stronger hot blast is provided.
The Polyamic Acid Film that a kind of side that the present invention is provided is strengthened, film is laterally in the range of the wide X of two side parts
Gradually decreased with close to outer rim solvent, the X=20~200mm.Central film portion solvent is Q, side parts solvent
Content is q, q ＜ Q, and film outer rim solvent q is minimum, be (0.2~0.6) Q.The solvent of film is distributed with film longitudinal direction
Center line is symmetrical.
The Polyamic Acid Film preparation method that a kind of side that the present invention is provided is strengthened, the polyamic acid solution of synthesis through into
The salivation on steel band of pattern tool is shaped to polyamic acid liquid film, and the steel band for being loaded with polyamic acid liquid film is dried to by hot-air oven
For the Polyamic Acid Film of self-supporting.Change plenum chamber top sides sidepiece in salivation hot-air oven and separate air port, make plenum chamber horizontal
To side parts width Y in the range of, gradually increase with close to static pressure box wall air quantity, the Y=20~200mm.Static pressure
The blast of film surface is F in the middle part of case, is f, f ＞ F, the surface of film outer rim in the blast of plenum chamber side parts film surface
Blast f is maximum, be (1.2~3) F.The wind force distribution of film surface is symmetrical with plenum chamber longitudinal median plane.
Further to improve the side intensity of Polyamic Acid Film two, after self-supporting Polyamic Acid Film is peeled off from steel band,
Before transverse stretching machine is entered, local heating, the heating of side parts film surface are carried out in the range of 20~200mm of film side parts
Temperature is 150~200 DEG C, and the heat time is 8 seconds~80 seconds.Film side parts by heating because of solvent, evaporate again by part
Content further reduces, imines rate is improved, and its intensity is strengthened.
The Polyamic Acid Film that a kind of side that the present invention is designed is strengthened prepares facility, including mould, carrying stream
Saliva is molded the circulation steel band of polyamic acid liquid film, there is the hot-air oven of multiple plenum chambers, has multiple rows of at the top of one or more plenum chambers
Hot air outlet, the center line in each discharge air port is vertical with plenum chamber longitudinal centre line, and plenum chamber side parts of the invention are wide
Air outlet bore in the range of degree Y gradually increases with close to static pressure box wall, the Y=20~200mm.Middle part air outlet mouthful
Footpath is W, and air outlet bore is w, w ＞ W in the range of Y, close to the air outlet bore w of static pressure box wall it is maximum, for (1.2~
3)W.Hot air outlet bore is symmetrical with plenum chamber longitudinal median plane at the top of plenum chamber.
Polyamic Acid Film peels off rear film from steel band, before transverse stretching machine is entered, the laterally wide Z of its in film traveling process
In the range of the above and or belows of side parts heating tube, the Z=20~200mm, between laterally waiting in the range of the wide Z are installed
The heating tube parallel with film direct of travel away from 2~6 row length directions of arrangement, the length L=u*t of heating tube row, wherein u is represented
Film gait of march, t represent film processing time, and 0.5m/min≤u≤20.0m/min, 8 seconds≤t≤80 second.Heating tube with
Film surface vertical range is m, is gradually reduced with close to film outer rim m.Film outer rim above and or below heating tube with
Film surface is apart from minimum M, and M is 10~30mm, m=(1~8) M.The wide Z of film side parts with close to film outer rim
Heating tube and the spacing of film are gradually decreased, and gradually step up side parts film surface heating-up temperature, are 150~200 DEG C.It is thin
The setting height(from bottom) of the side parts above and or below heating tube of film two is symmetrical with the vertical plane on film longitudinal centre line.
Compared with prior art, a kind of Polyamic Acid Film of side reinforcement of the invention, its preparation method and facility is excellent
Put and be：1st, the solvent of the side parts of Polyamic Acid Film two is reduced, and is allowed to intensity increase, i.e., in this after-drawing or tensioning
The thin film strength increase of chain pincers or fibula origin of force of clamping device, makes the de- pincers or dropout failure caused by clipping broken, pulling open
It is not susceptible to, from the point of view of testing, edge damage, the situation of film breakage seldom occur, and film product yield is greatly improved；2nd, this preparation method
It is easily achieved, only need to changes the hot air outlet bore of hot-air oven plenum chamber side parts, you can increases side parts air-out
Amount, the solvent evaporation amount increase of polyamic acid salivation liquid film side parts, the solvent for reducing side parts film；3rd, hot blast
The increasing of hot air outlet bore and the installation of heating tube of baking oven plenum chamber side parts are only local flow improvement, it is easy to implemented.
Brief description of the drawings
Fig. 1 is solvent scatter chart on the Polyamic Acid Film embodiment film cross section of this side reinforcement.
Fig. 2 is some plenum chamber top of the hot-air oven for preparing facility embodiment 1 of Polyamic Acid Film that this side is strengthened
Discharge air port schematic diagram in portion one.
Fig. 3 prepares the self-supporting Polyamic Acid Film of facility embodiment 1 from steel for the Polyamic Acid Film of this side reinforcement
Take local heating pipe schematic diagram above the film side parts after peeling off in traveling process.
Fig. 4 is the cross-sectional view of some avris of Fig. 3.
Fig. 5 is some plenum chamber top of the hot-air oven for preparing facility embodiment 2 of Polyamic Acid Film that this side is strengthened
Portion's air outlet schematic diagram.
In figure marked as：1st, film, 2, plenum chamber top, 3, air outlet, 4, heating tube.
Embodiment
The Polyamic Acid Film embodiment that side is strengthened
The Polyamic Acid Film embodiment that this side is strengthened, two horizontal side parts of film 1, width X=100mm scope
Interior to be gradually reduced with close to outer rim solvent, the middle part solvent Q=35% of film 1, the outer rim solvent of film 1 is minimum
16%, solvent distribution is as shown in Figure 1 on the cross section of film 1.
The change of the solvent of film 1 is symmetrical with film longitudinal centre line.
It is identical in identical temperature with the present embodiment film using the uniform film for Q=35% of solvent as comparative example
Draw ratio under carry out cross directional stretch, longitudinal stretching and be tensioned imidization following process experiment, the two result such as table 1
It is shown：
The present embodiment of table 1 and comparative example following process situation comparison sheet
From the results shown in Table 1, the Polyamic Acid Film strengthened using the side of the present embodiment is in following process mistake
The edge damage number of horizontal drawing process is only the 0.2% of traditional films in journey.Vertical draw is significantly reduced with edge damage number of times in imidization process,
Total film breakage number of times on Production Line for Polyimide Film tends to 0, and product yield tends to 100.0%, and product yield is up to 99.0%.
The Polyamic Acid Film that side is strengthened prepares facility embodiment 1
The Polyamic Acid Film that this side is strengthened prepares facility embodiment, including mould, and carrying salivation shaping is poly-
The circulation steel band of amic acid liquid film, there is the hot-air oven of multiple plenum chambers, and 2, one or more plenum chamber tops have many thermal wind exhaustings to go out
Air port 3, certain thermal wind exhausting air outlet 3 on 2, some plenum chamber top is as shown in Fig. 2 the center line in a discharge air port 3 is indulged with plenum chamber
To central axis, 3 air outlets 3 in the range of this example plenum chamber partial width Y=100mm are interconnected and turn into elongated hole,
Gradually increase with the elongated bore open close to static pressure box wall.The bore W=8.0mm of air outlet 3 in the middle part of the row, in the range of Y
The bore of air outlet 3 is w, close to the bore w of air outlet 3 of static pressure box wall it is maximum, be 2W.2, plenum chamber top hot air outlet
Bore is symmetrical with plenum chamber longitudinal median plane.
After Polyamic Acid Film 1 is peeled off from steel band, before transverse stretching machine is entered, its laterally wide Z=in the traveling process of film 1
Heating tube 4 is installed, as shown in figure 3, laterally equidistantly arrangement 4 is arranged in the range of wide 100mm in the range of 100mm above side parts
The length direction heating tube 4 parallel with the direct of travel of film 1, the length L=u*t that this example heating tube 4 is arranged, wherein u represents film 1
Gait of march, this example u=6.0m/min, t represents the processing time of film 1, this example t=45 seconds；L=4.5m.As shown in figure 4, this
Heating tube 4 of the example above the outer rim of film 1 and the surface vertical range minimum M=20mm of film 1, with leaving the outer rim m of film 1 gradually
Increase, be 55.26mm with the top heating tube 4 at the outer rim horizontal range 100mm of film 1 and the vertical range on the surface of film 1.Side
The heating tube 4 of side upper makes the temperature of the side-flank surfaces of film 1, gradually stepped up with close to the outer rim of film 1, outside this example film 1
Edge surface temperature is up to 180 DEG C.
Facility embodiment 2 prepared by the Polyamic Acid Film that side is strengthened
The air outlet 3 on 2, the plenum chamber top of this example is slightly different, the Polyamic Acid Film that other structures are strengthened with side
Prepare facility embodiment 1 identical.As shown in figure 5, air outlet 3 is a plurality of slit for crossing 2, plenum chamber top, with plenum chamber longitudinal direction
Central axis.Slit width is that slit width is expanded as in the range of W=8.0mm, the long Y=100mm of two avris in the middle part of each slit of bar air outlet 3
W, outer end slit width w are maximum, be 16mm.Each slit slit width of bar air outlet 3 in 2, plenum chamber top is with plenum chamber longitudinal median plane pair
Claim.
The Polyamic Acid Film preparation method embodiment that side is strengthened
This example uses the Polyamic Acid Film strengthened with upper side edge to prepare facility embodiment 1.
The polyamic acid solution of synthesis salivates into polyamic acid liquid film through mould on steel band, is loaded with polyamide acid solution
The steel band of film dries the Polyamic Acid Film 1 as self-supporting, the horizontal wide 100mm of side parts of plenum chamber by hot-air oven
In the range of, gradually increase with close to static pressure box wall air quantity.The blast on the surface of film 1 is F in the middle part of plenum chamber, on plenum chamber side
The blast on the surface of film 1 is f in the range of the wide 100mm in side part, and the outer fringe surface blast f of film 1 is maximum, be 2F.The surface wind of film 1
Pressure is symmetrical with plenum chamber longitudinal median plane.
The self-supporting Polyamic Acid Film that this example is peeled off from steel band is before transverse stretching machine is entered, the side of film 1 in traveling process
Side part by its top install heating tube carry out local heat treatment, the outer fringe surface heating-up temperature of this example film 1 up to 180 DEG C,
By edge, the inside surface temperature of film 1 gradually decreases down room temperature.The side parts local heating time is 60 seconds.By the thin of heating
Because of solvent, evaporation content in part further reduces the side parts of film 1, imines rate is improved again, and its intensity is strengthened.Film 1
The setting height(from bottom) of heating tube is symmetrical with the vertical plane on the longitudinal centre line of film 1 above two side parts.
Above-described embodiment, is only to the specific of the purpose of the present invention, technical scheme and beneficial effect further description
Individual example, the present invention is not limited to this.All any modifications made within the scope of disclosure of the invention, equivalent substitution, change
Enter, be all contained within protection scope of the present invention.
Claims (4)
1. a kind of preparation method for the Polyamic Acid Film that side is strengthened, the facility for preparing of use includes mould, carrying stream
Saliva is molded the circulation steel band of polyamic acid liquid film, there is the hot-air oven of multiple plenum chambers, has multiple rows of at the top of one or more plenum chambers
Hot air outlet, the center line in each discharge air port is vertical with plenum chamber longitudinal centre line, and the polyamic acid solution of synthesis is through shaping
Mould salivates into polyamic acid liquid film on steel band, and the steel band for being loaded with polyamic acid liquid film is dried as branch certainly by hot-air oven
The Polyamic Acid Film of support；It is characterized in that：
In the range of horizontal side parts width Y at the top of the plenum chamber (2), air outlet (3) bore is with close in plenum chamber
Side wall gradually increases, the Y=20~200mm, and middle part air outlet (3) bore is W, and air outlet (3) bore is w in the range of Y,
W ＞ W, close to air outlet (3) bore w of static pressure box wall it is maximum, be (1.2~3) W；The wind of film surface in the middle part of plenum chamber
Press as F, be f, f ＞ F in the blast of plenum chamber side parts film surface, film outer fringe surface blast f is maximum, be (1.2~3)
F。
2. the preparation method for the Polyamic Acid Film that side according to claim 1 is strengthened, it is characterised in that：
Hot air outlet (3) bore is symmetrical with plenum chamber longitudinal median plane at the top of the plenum chamber (2)；The salivation hot blast dries
The wind force distribution of film surface is symmetrical with plenum chamber longitudinal median plane in case.
3. the preparation method for the Polyamic Acid Film that side according to claim 2 is strengthened, it is characterised in that：
After Polyamic Acid Film (1) is peeled off from steel band, before transverse stretching machine is entered, its laterally wide Z model in film (1) traveling process
Enclose interior side parts above and or below and heating tube (4) is installed, the Z=20~200mm is laterally equidistant in the range of wide Z
2~6 row length directions of the arrangement heating tube (4) parallel with film (1) direct of travel, the length L=u*t of heating tube (4) row, its
Middle u represents that film (1) gait of march, t represent film (1) processing time, and 0.5m/min≤u≤20.0m/min, 8 seconds≤t≤
80 seconds；Heating tube (4) is m with film (1) surface distance, is gradually reduced with close to film (1) outer rim m, in film (1) outer rim
The heating tube (4) of side and/or lower section and film (1) minimum M of surface distance, M are 10~30mm, m=(1~8) M；
After the self-supporting Polyamic Acid Film is peeled off from steel band, before transverse stretching machine is entered, 20~200mm of film side parts
In the range of carry out local heating, side parts film surface heating-up temperature is 150~200 DEG C, and the heat time is 8 seconds~80
Second.
4. the preparation method for the Polyamic Acid Film that side according to claim 3 is strengthened, it is characterised in that：
The setting height(from bottom) of the side parts above and or below heating tube (4) of film (1) two is with film (1) longitudinal centre line
Vertical plane is symmetrical.
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| CN201410840109.6A CN104479156B (en) | 2014-12-30 | 2014-12-30 | Polyamic Acid Film, its preparation method and facility that a kind of side is strengthened |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105196578A (en) * | 2015-10-23 | 2015-12-30 | 上海洛兴包装材料有限公司 | Shrinkage sheet and manufacturing method thereof |
| CN111113754B (en) * | 2019-11-22 | 2020-12-04 | 桂林电器科学研究院有限公司 | Method for improving edge strength of polyamide acid film |
| CN112999979A (en) * | 2021-02-04 | 2021-06-22 | 江苏亚宝绝缘材料股份有限公司 | Automatic production line and automatic production method of polyimide film |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101267929A (en) * | 2005-09-21 | 2008-09-17 | 富士胶片株式会社 | Solution casting method |
| CN101407588A (en) * | 2008-11-26 | 2009-04-15 | 哈尔滨工业大学 | Preparation of polyimide film |
| CN103072261A (en) * | 2011-08-31 | 2013-05-01 | 株式会社日本制钢所 | Transverse stretching method and device thereof |
| JP5191419B2 (en) * | 2009-03-06 | 2013-05-08 | 新日鉄住金化学株式会社 | Method for producing polyimide film |
| CN103642055A (en) * | 2013-09-29 | 2014-03-19 | 桐城市福润包装材料有限公司 | Production technology for polyimide films |
| CN204356270U (en) * | 2014-12-30 | 2015-05-27 | 桂林电器科学研究院有限公司 | The Polyamic Acid Film that a kind of side is strengthened prepare facility |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07307114A (en) * | 1994-05-13 | 1995-11-21 | Hitachi Ltd | Method for forming polyimide insulated film |
| JP2002127245A (en) * | 2000-10-30 | 2002-05-08 | Fuji Photo Film Co Ltd | Method for stretching polymer film, polarizing film, polarizing plate and liquid crystal display device |
| CN201473480U (en) * | 2009-08-06 | 2010-05-19 | 操绍春 | Water-soluble film forming machine |
-
2014
- 2014-12-30 CN CN201410840109.6A patent/CN104479156B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101267929A (en) * | 2005-09-21 | 2008-09-17 | 富士胶片株式会社 | Solution casting method |
| CN101407588A (en) * | 2008-11-26 | 2009-04-15 | 哈尔滨工业大学 | Preparation of polyimide film |
| JP5191419B2 (en) * | 2009-03-06 | 2013-05-08 | 新日鉄住金化学株式会社 | Method for producing polyimide film |
| CN103072261A (en) * | 2011-08-31 | 2013-05-01 | 株式会社日本制钢所 | Transverse stretching method and device thereof |
| CN103642055A (en) * | 2013-09-29 | 2014-03-19 | 桐城市福润包装材料有限公司 | Production technology for polyimide films |
| CN204356270U (en) * | 2014-12-30 | 2015-05-27 | 桂林电器科学研究院有限公司 | The Polyamic Acid Film that a kind of side is strengthened prepare facility |
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