CN111300854A - Preparation method and preparation device of gluing coil stock - Google Patents
Preparation method and preparation device of gluing coil stock Download PDFInfo
- Publication number
- CN111300854A CN111300854A CN202010039845.7A CN202010039845A CN111300854A CN 111300854 A CN111300854 A CN 111300854A CN 202010039845 A CN202010039845 A CN 202010039845A CN 111300854 A CN111300854 A CN 111300854A
- Authority
- CN
- China
- Prior art keywords
- base material
- coating
- sensitive adhesive
- pressure
- preparation
- 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.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D7/00—Producing flat articles, e.g. films or sheets
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Adhesive Tapes (AREA)
Abstract
The invention discloses a preparation method and a preparation device of a gluing coil stock, belonging to the technical field of insulating coiled materials, wherein the preparation method comprises the steps of forming a corona coating on an insulating flame-retardant base material by utilizing high-voltage corona discharge, then coating a pressure-sensitive adhesive to obtain a pressure-sensitive adhesive layer, and enabling the dyne value of the surface of the base material to reach 38-42dyn/cm by utilizing the high-voltage corona discharge, so that the attaching degree and the coating uniformity of the base material and the pressure-sensitive adhesive layer are improved, the problem that bubbles and dust foreign matters fall into the adhesive tape in the process of attaching PC is solved by utilizing a direct coating method, the procedure and the risk of material joint identification are avoided in integrated production, the production efficiency is improved, and the quality of a battery cell after attachment is improved; the preparation device of the gluing coil stock provided by the invention can realize automatic production of the gluing coil stock, and the pressure-sensitive adhesive is directly coated on the base material provided with the corona coating in the production process, so that the gluing coil stock is high in processing efficiency and excellent in quality.
Description
Technical Field
The invention belongs to the technical field of insulating coiled materials, and particularly relates to a preparation method and a preparation device of a gluing coiled material.
Background
With the increasing serious pollution of the tail gas emission of fuel automobiles to the atmosphere and the shortage of petroleum resources, new energy automobiles are popularized and used in large areas across the country, the new energy automobiles become the trend of automobile development industry, the mainstream core power of the domestic new energy automobiles at present is electric power generation, core batteries of the new energy automobiles need to ensure that the batteries are not in conductive contact with the outside except for positive and negative terminal posts, and the batteries are also mutually isolated, so that the lithium batteries are prevented from being damaged by short circuit. The traditional process uses the PC substrate and the back double-sided adhesive tape to be combined and then uses the automatic equipment to be attached in the battery cell, but the process is limited by the length of the adhesive tape, and only can use the adhesive tape in a mode of overlapping a plurality of rolls, joints exist after the rolls, the equipment can be used after the joints are required to be identified and cut off, the efficiency is low, the risk that the equipment cannot be identified and cannot be identified is caused, bubbles and dust exist in the process of attaching the adhesive tape to the PC, potential risk exists in the long-term service life of the attached battery cell due to the falling of foreign matters, and higher consumption requirements cannot be met. The coil stock of the high-efficiency laminating type gluing process.
Disclosure of Invention
In order to overcome the defects of the prior art, the technical problems to be solved by the invention are as follows: a method and an apparatus for manufacturing a gummed roll material free from joints and free from bubbles and impurities are provided.
In order to solve the technical problems, the invention adopts the technical scheme that: a preparation method of a gluing roll material comprises the following steps:
and 4, curing the wound primary product in an environment of 40 ℃ for 24 hours to obtain the gluing roll material.
The other technical scheme adopted by the invention is as follows: a preparation device of a gluing coil stock comprises a corona treatment machine, a glue rolling machine, a tunnel furnace and a winding device which are arranged in a production line;
the rubber rolling machine comprises a pressing roller, a metering roller, a sizing roller and a rubber groove which are sequentially arranged from top to bottom, wherein the lower half part of the sizing roller is arranged in the rubber groove;
the upper part of the tunnel furnace is provided with an exhaust port and a heating device;
and a release paper roller is arranged above the winding device.
The invention has the beneficial effects that: according to the preparation method of the glued coil stock, the corona coating is formed by utilizing high-voltage corona discharge on the insulating flame-retardant base material, then the pressure-sensitive adhesive is coated to obtain the pressure-sensitive adhesive layer, the high-voltage corona discharge enables the dyne value of the surface of the base material to reach 38-42dyn/cm, the bonding degree of the base material and the pressure-sensitive adhesive layer and the coating uniformity are improved, the problem that bubbles and dust foreign matters fall into the adhesive tape in the PC bonding process is solved by utilizing a direct coating method, the procedure and risk of material joint identification are avoided in integrated production, the production efficiency is improved, and the quality of a bonded battery cell is improved; the preparation device of the gluing coil stock provided by the invention can realize automatic production of the gluing coil stock, the pressure-sensitive adhesive is directly coated on the base material with the corona coating in the production process, the problem of falling of bubbles and dust foreign matters caused by lamination is avoided, and the gluing coil stock is high in processing efficiency and excellent in quality.
Drawings
FIG. 1 is a schematic structural view of an apparatus for manufacturing a gummed roll according to an embodiment of the present invention;
description of reference numerals: 1. a corona processor; 2. a glue rolling machine; 21. a compression roller; 22. a metering roll; 23. gluing a rubber roller; 24. a glue groove; 3. a tunnel furnace; 31. an exhaust port; 32. a heating device; 4. a winding device; 5. a release paper roll; 6. a substrate; 7. and (4) release paper.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
The most key concept of the invention is as follows: the base material is provided with a corona layer, and the corona layer is directly coated to obtain the pressure-sensitive adhesive layer.
Referring to fig. 1, the preparation method of the glue-coated roll material of the present invention includes the following steps:
and 4, curing the wound primary product in an environment of 40 ℃ for 24 hours to obtain the gluing roll material.
A preparation device of a gluing coil stock comprises a corona treatment machine, a glue rolling machine, a tunnel furnace and a winding device which are arranged in a production line;
the rubber rolling machine comprises a pressing roller, a metering roller, a sizing roller and a rubber groove which are sequentially arranged from top to bottom, wherein the lower half part of the sizing roller is arranged in the rubber groove;
the upper part of the tunnel furnace is provided with an exhaust port and a heating device;
the winding device is characterized in that a release paper roller is arranged above the winding device and used for winding a release film, and the release film is a silicone oil type release film.
The preparation device of the gluing coil stock has the working principle that: transmitting a base material (namely the base material) to a corona treatment machine, generating low-temperature plasma by high-voltage corona discharge of the corona treatment machine, generating free radical reaction on the surface of the base material to enable a polymer to be crosslinked, and roughening the surface of the base material to form a corona coating; conveying the base material subjected to corona treatment by a corona treatment machine to a glue rolling machine, allowing the base material to pass through a gap between a compression roller and a metering roller, injecting glue solution into a glue tank after vacuum oscillation, taking out the glue solution from the glue tank by a glue applying roller and conveying the glue solution to the metering roller, and uniformly coating the glue solution on the base material under the action of the glue applying roller and the metering roller; the coated base material is quickly dried and dried through a tunnel furnace, the glue solution is heated under the action of hot air generated by a heating device, the solvent is evaporated into steam and discharged from an exhaust port, and the dried glue solution is quickly combined with a corona layer to increase the viscosity of a finished product; and after the material passing through the tunnel furnace is dried, the material is cooled at normal temperature through a conveying belt, and finally the material is wound by covering the release paper edge through a winding device and a release paper roller edge.
From the above description, the beneficial effects of the present invention are: according to the preparation method of the gluing coil stock, the corona coating is formed by utilizing high-voltage corona discharge on the insulating flame-retardant base material, then the pressure-sensitive adhesive is coated to obtain the pressure-sensitive adhesive layer, the high-voltage corona discharge enables the dyne value of the surface of the base material to reach 38-42dyn/cm, the attaching degree of the base material and the pressure-sensitive adhesive layer and the coating uniformity are improved, the pressure-sensitive adhesive layer is attached to the release film for curing for a certain time, and the pressure-sensitive adhesive layer can give out 100% of viscosity; the problem that bubbles and dust and foreign matters fall into the adhesive tape in the process of adhering the PC is solved by using a direct coating method, the procedure and risk of material joint identification do not exist in the integrated production of the jointless tape, the production efficiency is improved, and the quality of the adhered battery cell is improved; the preparation device of the gluing coil stock provided by the invention can realize automatic production of the gluing coil stock, the pressure-sensitive adhesive is directly coated on the base material with the corona coating in the production process, the problem of falling of bubbles and dust foreign matters caused by lamination is avoided, and the gluing coil stock is high in processing efficiency and excellent in quality.
Further, the voltage of the high-voltage corona discharge is 5000V-10000V.
As can be seen from the above description, the discharge of a suitable voltage generates low temperature plasma, which causes radical reaction on the surface of the substrate to crosslink the polymer, roughens the surface and increases its wettability to the pressure sensitive adhesive layer, these plasma damage its molecular structure by electric shock and penetration into the surface of the substrate, which in turn oxidizes and polarizes the surface molecules being treated, and the ionic shock attacks the surface, so as to increase the adhesion of the substrate surface to form a corona coating on the substrate surface.
Further, the distance between the substrate and the equipment for carrying out high voltage corona discharge in step 1 is 1-2 mm.
From the above description, it can be known that the effect of the corona layer can be controlled by controlling the voltage and the height of the material, and the situation that the substrate becomes brittle and the quality is affected due to overhigh voltage is avoided.
Further, the drying temperature of the hot air in the step 3 is that the time is that the cooling temperature is 20-35 ℃.
Furthermore, the discharge end of the winding device is also provided with an aging chamber.
As can be seen from the above description, curing of the already rolled adhesive web in the aging chamber results in a 100% tack of the pressure-sensitive adhesive layer
Example 1:
a preparation method of a gluing roll material comprises the following steps:
the distance between the base material and the equipment for carrying out high-voltage corona discharge is 1-2 mm;
and 4, curing the wound primary product in an environment of 40 ℃ for 24 hours to obtain the gluing roll material.
Example 2:
a preparation method of a gluing roll material specifically comprises the following steps:
the distance between the substrate and the equipment for carrying out high-voltage corona discharge is 0.125 mm;
and 4, curing the wound primary product in an environment of 40 ℃ for 24 hours to obtain the gluing roll material.
The distance between the substrate and the equipment for carrying out the high voltage corona discharge in step 1 was 2 mm.
The peeling force of the steel plate at 180 degrees of the glue-coated coil prepared by the preparation method of the embodiment 2 is more than or equal to 500N/M according to GB/T2792 test; testing that the shearing force of the 180-degree aluminum plate is more than or equal to 1MPa according to GB/T7124; according to the GB/T10064-2006 standard, the insulation reaches 1.0 x 1010 omega; according to the IEC 60243-2-2013 standard, the withstand voltage reaches 2700VDC, and the 1min leakage current is tested to be less than or equal to 1 MA.
Example 3:
a preparation device of a gluing coil stock comprises a corona treatment machine, a glue rolling machine, a tunnel furnace, a winding device and an aging chamber which are arranged in a production line;
the rubber rolling machine comprises a pressing roller, a metering roller, a sizing roller and a rubber groove which are sequentially arranged from top to bottom, wherein the lower half part of the sizing roller is arranged in the rubber groove;
the upper part of the tunnel furnace is provided with an exhaust port and a heating device, and the tunnel furnace is a multi-section high-temperature tunnel furnace;
a release paper roller is arranged above the winding device,
the release paper roll is used for winding a release film, and the release film is a silicone oil type release film.
The application method of the preparation device of the gummed roll material of the embodiment 3 is as follows: conveying a base material (a PC film with the thickness of 0.1 mm) to a corona treatment machine, generating low-temperature plasma by high-voltage corona discharge of the corona treatment machine, generating free radical reaction on the surface of the base material to enable a polymer to be crosslinked, roughening the surface of the base material, and enabling the dyne value of the surface of the base material to reach 38-42dyn/cm to form a corona coating; the base material after corona treatment by the corona treatment machine is transmitted to the glue rolling machine, the base material passes through between the compression roller and the metering roller, meanwhile, the acrylic glue is injected into the glue tank after vacuum oscillation, the glue solution is taken out from the glue tank by the glue applying roller and is transmitted to the metering roller, and the acrylic glue is uniformly coated on the PC film under the action of the glue applying roller and the metering roller; the coated PC film is quickly dried and dried through a multi-section high-temperature tunnel furnace, the glue solution is heated through the action of hot air, the solvent is evaporated into steam, the steam is discharged from an exhaust port, the temperature of the hot air drying is 65 ℃, the speed of the hot air drying is 80m/min, and the dried glue solution is quickly combined with a corona layer to increase the viscosity of a finished product; drying the material passing through the multi-section high-temperature tunnel furnace, cooling the material at the normal temperature of 20-35 ℃ through a conveying belt, and finally winding the material by a winding device and a release paper roller above the winding device while covering release paper; and (3) putting the rolled finished product into an aging chamber for aging, maintaining the temperature of the aging chamber at 40 ℃ for more than 24 hours, and obtaining the finished product gluing coil stock.
Example 4:
example 4 differs from example 3 in that the substrate used in example 4 was a 0.175mm thick PC film.
In conclusion, according to the preparation method of the glued coil stock, the corona coating is formed by utilizing high-voltage corona discharge on the insulating flame-retardant base material, then the pressure-sensitive adhesive is coated to obtain the pressure-sensitive adhesive layer, the dyne value of the surface of the base material reaches 38-42dyn/cm through the high-voltage corona discharge, the bonding degree of the base material and the pressure-sensitive adhesive layer and the coating uniformity are improved, the problem that air bubbles and dust foreign matters fall into the adhesive tape in the process of bonding PC is solved by utilizing a direct coating method, the procedure and risk of material joint identification are avoided in integrated production, the production efficiency is improved, and the quality of the bonded battery cell is improved; the preparation device of the gluing coil stock provided by the invention can realize automatic production of the gluing coil stock, the pressure-sensitive adhesive is directly coated on the base material with the corona coating in the production process, the problem of falling of bubbles and dust foreign matters caused by lamination is avoided, and the gluing coil stock is high in processing efficiency and excellent in quality.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (6)
1. The preparation method of the gluing roll is characterized by comprising the following steps of:
step 1, performing high-voltage corona discharge on a base material to enable a dyne value of the surface of the base material to reach 38-42dyn/cm, and forming a corona coating on the surface of the base material;
step 2, firstly, performing vacuum oscillation on the acrylic adhesive, and then coating the acrylic adhesive on the corona coating to obtain a pressure-sensitive adhesive layer;
step 3, drying the base material coated with the pressure-sensitive adhesive layer by hot air, cooling the base material after drying by the hot air, and then rolling the base material while covering the release film to obtain an initial product;
and 4, curing the wound primary product in an environment of 40 ℃ for 24 hours to obtain the gluing roll material.
2. A method for preparing a gummed roll as claimed in claim 1, characterized in that the voltage of the high voltage corona discharge is 5000V-10000V.
3. A method for preparing a gummed roll as claimed in claim 1, characterized in that in step 1 the distance between the substrate and the equipment for performing the high voltage corona discharge is between 1 and 2 mm.
4. The method for preparing the gummed roll material according to claim 1, wherein the temperature of hot air drying in the step 3 is 65 ℃, the speed of hot air drying is 80m/min, and the cooling temperature is 20-35 ℃.
5. The preparation device of the gluing coil stock is characterized by comprising a corona treatment machine, a glue rolling machine, a tunnel furnace and a winding device which are arranged in a production line;
the rubber rolling machine comprises a pressing roller, a metering roller, a sizing roller and a rubber groove which are sequentially arranged from top to bottom, wherein the lower half part of the sizing roller is arranged in the rubber groove;
the upper part of the tunnel furnace is provided with an exhaust port and a heating device;
and a release paper roller is arranged above the winding device.
6. The apparatus for preparing gummed roll material according to claim 5, characterized in that the discharge end of said winding device is further provided with an aging chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010039845.7A CN111300854A (en) | 2020-01-15 | 2020-01-15 | Preparation method and preparation device of gluing coil stock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010039845.7A CN111300854A (en) | 2020-01-15 | 2020-01-15 | Preparation method and preparation device of gluing coil stock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111300854A true CN111300854A (en) | 2020-06-19 |
Family
ID=71150820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010039845.7A Pending CN111300854A (en) | 2020-01-15 | 2020-01-15 | Preparation method and preparation device of gluing coil stock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111300854A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115570871A (en) * | 2022-09-06 | 2023-01-06 | 浙江宇立新材料有限公司 | Production process of recyclable environment-friendly composite material |
| CN116691009A (en) * | 2023-08-01 | 2023-09-05 | 福建腾博新材料科技有限公司 | Slicing and labeling equipment for module buffering insulating cover and preparation method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103333628A (en) * | 2013-07-22 | 2013-10-02 | 佛山市顺德区永创翔亿电子材料有限公司 | Special protective film for polymer lithium battery and production method for special protective film |
| CN108046030A (en) * | 2017-12-29 | 2018-05-18 | 深圳市新嘉拓自动化技术有限公司 | A kind of comprehensive high speed membrane coating equipment |
| CN109777315A (en) * | 2019-01-28 | 2019-05-21 | 东莞市澳中电子材料有限公司 | A kind of terminal adhesive tape and preparation method thereof |
-
2020
- 2020-01-15 CN CN202010039845.7A patent/CN111300854A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103333628A (en) * | 2013-07-22 | 2013-10-02 | 佛山市顺德区永创翔亿电子材料有限公司 | Special protective film for polymer lithium battery and production method for special protective film |
| CN108046030A (en) * | 2017-12-29 | 2018-05-18 | 深圳市新嘉拓自动化技术有限公司 | A kind of comprehensive high speed membrane coating equipment |
| CN109777315A (en) * | 2019-01-28 | 2019-05-21 | 东莞市澳中电子材料有限公司 | A kind of terminal adhesive tape and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115570871A (en) * | 2022-09-06 | 2023-01-06 | 浙江宇立新材料有限公司 | Production process of recyclable environment-friendly composite material |
| CN116691009A (en) * | 2023-08-01 | 2023-09-05 | 福建腾博新材料科技有限公司 | Slicing and labeling equipment for module buffering insulating cover and preparation method |
| CN116691009B (en) * | 2023-08-01 | 2023-11-10 | 福建腾博新材料科技有限公司 | Slicing and labeling equipment for module buffering insulating cover and preparation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111995957A (en) | Oriented polystyrene expansion adhesive tape with high expansion ratio and preparation method thereof | |
| CN111300854A (en) | Preparation method and preparation device of gluing coil stock | |
| CN110767956B (en) | Method for stripping lithium ion battery electrode plate material and current collector | |
| CN105374985B (en) | Electrode slice preparation facilities and electrode piece preparation method | |
| CN112635910B (en) | Composite expansion membrane and preparation method and application thereof | |
| WO2022016923A1 (en) | Method for continuous testing of voltage resistance of thin film | |
| KR20150071889A (en) | Manufacture method of MEA for fuel cell | |
| CN107643246A (en) | A kind of detection method of heat sensitive adhesive tape adhesive force | |
| CN112646505A (en) | High-temperature-resistant composite expansion film and preparation method and application thereof | |
| CN110504494A (en) | A kind of lithium battery and preparation method thereof | |
| CN109950467B (en) | Preparation method of pole piece surface coating, pole piece with surface coating and lithium ion battery | |
| CN110176574B (en) | Lithium pre-preparing method for lithium ion battery negative pole piece | |
| CN108044950A (en) | A kind of dry compound machine | |
| CN211404608U (en) | Heat-resistant adhesive low-cost coating film | |
| CN111769243A (en) | Digital battery diaphragm and preparation method thereof | |
| CN111786032A (en) | Preparation method of anti-drop lithium ion battery | |
| CN107732137B (en) | Preparation method of lithium titanate negative electrode | |
| CN101577327B (en) | Pole piece coating method | |
| WO2017039148A1 (en) | Device for manufacturing electrode for secondary battery comprising electrode mixture layer forming mold | |
| CN102847669A (en) | Coating and drying method for lithium ion battery pole piece | |
| CN111430809A (en) | Dispensing device and lithium ion battery production method adopting same | |
| CN112945846A (en) | Pole piece bonding performance evaluation method | |
| CN210711376U (en) | Glue-free self-adhesive protective adhesive tape | |
| CN111081950A (en) | Composite diaphragm and preparation method and application thereof | |
| CN110576628A (en) | Non-silicon matte double-sided release film and preparation process thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |