CN115090498A - Preparation method of gluing carbon tube heating film based on lamination production process and lamination equipment - Google Patents
Preparation method of gluing carbon tube heating film based on lamination production process and lamination equipment Download PDFInfo
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- CN115090498A CN115090498A CN202210652734.2A CN202210652734A CN115090498A CN 115090498 A CN115090498 A CN 115090498A CN 202210652734 A CN202210652734 A CN 202210652734A CN 115090498 A CN115090498 A CN 115090498A
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 75
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 66
- 238000004026 adhesive bonding Methods 0.000 title claims abstract description 40
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 238000003475 lamination Methods 0.000 title claims abstract description 11
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 238000001035 drying Methods 0.000 claims abstract description 114
- 238000000576 coating method Methods 0.000 claims abstract description 106
- 239000011248 coating agent Substances 0.000 claims abstract description 105
- 239000002238 carbon nanotube film Substances 0.000 claims abstract description 76
- 238000007731 hot pressing Methods 0.000 claims abstract description 60
- 238000010030 laminating Methods 0.000 claims abstract description 19
- 238000005507 spraying Methods 0.000 claims description 49
- 230000005540 biological transmission Effects 0.000 claims description 45
- 238000003825 pressing Methods 0.000 claims description 22
- 239000002994 raw material Substances 0.000 claims description 18
- 230000007246 mechanism Effects 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 16
- 238000010073 coating (rubber) Methods 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 10
- 238000005520 cutting process Methods 0.000 claims description 9
- 239000007921 spray Substances 0.000 claims description 8
- 238000013329 compounding Methods 0.000 claims description 6
- 238000009501 film coating Methods 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000002041 carbon nanotube Substances 0.000 claims description 2
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 2
- 239000007888 film coating Substances 0.000 claims description 2
- 238000005452 bending Methods 0.000 abstract description 11
- 239000010410 layer Substances 0.000 abstract 2
- 239000002356 single layer Substances 0.000 abstract 1
- 239000012528 membrane Substances 0.000 description 10
- 238000009423 ventilation Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 241000252254 Catostomidae Species 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/0221—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0209—Multistage baking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0254—After-treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
- B05D3/0406—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases the gas being air
- B05D3/0413—Heating with air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
- B32B37/1284—Application of adhesive
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
- H05B3/34—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The invention discloses a preparation method of a glued carbon tube heating film based on a lamination production process, wherein a single-side coated PI film is laminated by adopting lamination equipment, the single-layer gluing can ensure that the air in the heating film is diffused through a gluing layer during drying, and the problem of bubbles does not exist in the heating film; because the coating surface produced by the laminating equipment can generate internal stress and then curl in the drying process, the carbon nanotube film layer can be simultaneously cooled with the PI coating to ensure that the internal stress borne by the carbon nanotube film is transferred to the hot-pressing PI film on the other side of the carbon nanotube film, and the local fault caused by the stress bending generated by the drying process in the carbon nanotube film is relieved by utilizing the characteristic that the self bending strength of the hot-pressing PI film is stronger than that of the carbon nanotube film; the thickness of the PI coating C is set to be less than or equal to that of the PI film A, so that the whole curling of the gluing carbon tube heating film is avoided, and the bending resistance of the PI film A can be greatly enhanced by increasing the thickness of the PI film A.
Description
Technical Field
The application relates to the field of preparation of a glued carbon tube heating film, in particular to a method for preparing the glued carbon tube heating film based on a lamination production process and lamination equipment.
Background
The carbon tube heating film adopts the preparation technology of the carbon nanotube film sandwiched between two PI films at present, the hot pressing technology is adopted for preparation, air bubbles can exist in the middle of the prepared carbon tube film, the gas expands when the heating is used, the bulge phenomenon can appear on the heating film, meanwhile, if the gluing carbon tube heating film is produced by coating on two sides of the carbon nanotube film, the complicated production procedures of the double-side coating technology are more, which brings inconvenience to the production, on the other hand, the bubbles used for heating the carbon tube heating film are eliminated, and the double-side coating is not needed, and the single-side coating can meet the requirement that the carbon tube heating film is heated without bubbles.
However, for the carbon tube heating film coated with the PI coating on both sides, the coating surface coated on one side may expand with heat and contract with cold during the drying process, so that one side of the carbon tube heating film coated with the PI coating may generate internal stress and then curl after being dried during the forming process, so that the carbon nanotube film with weak bending strength may be cracked due to local fault generated by the internal stress, and the overall performance of the carbon tube heating film may be affected.
Disclosure of Invention
In order to achieve the purpose, the invention adopts the technical scheme that:
a preparation method of a gluing carbon tube heating film based on a lamination production process comprises the following steps:
(a) one end of the PI film A is coiled on a first raw material roller of a hot-pressing compounding mechanism of laminating equipment, and the other end of the PI film A penetrates through a feed roller and is pressed on a hot-pressing platform by a material pressing roller; one end of a carbon nano tube film B is coiled on a second raw material roller, the other end of the carbon nano tube film B penetrates through a position between an upper compression roller and a lower compression roller and is compressed between a hot-pressing platform and a PI film A by a pressure roller, and the carbon nano tube film B of the hot-pressing PI film A at one side can be conveyed to a coating conveying belt through the rotation of the pressure roller;
(b) placing the carbon nanotube film B of the single-side hot-pressed PI film A in a spraying station on a coating conveyor belt, arranging the carbon nanotube film B on one side which is not hot-pressed with the PI film A towards the coating conveyor belt, and coating a PI coating C on the carbon nanotube film B on one side which is not hot-pressed with the PI film A by a spraying gun arranged in a spraying hole on the spraying station;
(c) and (3) hot-pressing the PI film A on one side and coating the PI coating C on the other side to form a carbon nanotube film B which is a gluing carbon tube heating film, conveying the gluing carbon tube heating film to the front of a dryer through a coating conveying belt, conveying the gluing carbon tube heating film into a drying disc by a manipulator, conveying the gluing carbon tube heating film to the dryer, and drying to obtain a finished gluing carbon tube heating film.
Further, the carbon nanotube film of the single-side hot-pressing PI film hot-pressed on the hot-pressing platform is arranged such that the PI film A is positioned above the carbon nanotube film B, the carbon nanotube film B directly contacts the hot-pressing platform, and the temperature of the carbon nanotube film B in the hot-pressing process is higher than that of one side of the PI film A.
Further, the drying step in the step (c) further comprises:
(1) preheating: placing the drying disc in a preheating zone for preheating for 0.5-1min, wherein the preheating zone is communicated with the drying zone and is heated by the same top irradiation lamp;
(2) integral drying: be provided with lift support frame in the drying zone, lift support frame can go up and down in order to guarantee that its top surface height is less than the transmission structure on the preheating zone, can convey the drying dish to the drying zone by the preheating zone through transmission structure, after the drying dish got into the drying zone, set up in the stoving host computer of lift support frame bottom is opened to dry the rubber coating carbon nanotube heating film through drying hole and the ventiduct of drying dish bottom.
Furthermore, the temperature of high-temperature drying air connected into the air duct is 80-100 ℃, and the whole drying time of each gluing carbon tube heating film is not less than 10 min.
Furthermore, a cutting knife at one side of the coating conveying belt close to the film pressing mechanism can cut the carbon nanotube film of the single-side hot-pressing PI film into a length equal to the width of the coating conveying belt.
Furthermore, drying holes and an air duct are formed in the drying disc, the drying holes are arranged on the air duct at intervals, the drying discs are stacked in the dryer and can enter the lifting support frame from the upper portion of the lifting support frame and leave the lifting support frame below the lifting support frame; rubber coating carbon pipe heating film coating has PI coating C's one end to drying hole and air duct set up, insert high temperature drying air in the air duct.
Further, the thickness of the carbon nano tube film B is 0.1-3 micrometers, the thickness of the PI film A is 0.5-1 micrometer, the thickness of the coating PI coating C is 0.03-1 micrometer, the thickness of the finished product of the gummed carbon tube heating film is 0.3-5 micrometers, and the thickness of the coating PI coating C is smaller than or equal to that of the PI film A
The application also provides laminating equipment, the laminating equipment comprises a hot-pressing composite mechanism, a hot-pressing platform, a coating transmission belt, a cutting knife, a dryer, a manipulator and a drying disc, the hot-pressing composite mechanism comprises a first raw material roller, a feeding roller, a pressing roller, a second raw material roller, an upper pressing roller and a lower pressing roller, wherein one end of a PI film A is wound on the first raw material roller, the other end of the PI film A penetrates through the feeding roller and is pressed on the hot-pressing platform by the pressing roller, one end of a carbon nanotube film B is wound on the second raw material roller, the other end of the carbon nanotube film B penetrates through the upper pressing roller and the lower pressing roller and is pressed between the hot-pressing platform and the PI film by the pressing roller, and the carbon nanotube film B of the PI hot-pressing film A can be conveyed to the coating transmission belt through the rotation of the pressing roller; one side of the coating transmission belt, which is close to the film pressing mechanism, is provided with a cutting knife.
Further, be provided with the spraying tray on the coating transmission band, the spraying tray can be followed the transmission of coating transmission band, the width of spraying tray with the width of coating transmission band is the same, the spraying tray is provided with spraying hole and spray gun, the transmission of coating transmission band can drive the spraying tray and move forward, and spray gun perpendicular to coating transmission band motion is to the carbon nanotube film coating PI coating C in the spraying tray, the spraying tray is hollow frame construction, the spraying tray can be held and is the return operation by the sucker structure who coats the transmission band top and set up.
Furthermore, the manipulator comprises a top plate, the top plate can be slidably arranged on a gantry structure of the production equipment and can move along the X direction and the Y direction in the horizontal plane respectively, 3 rotating seats are arranged on the top plate, rotating motors and rotating shafts are arranged on the 3 rotating seats respectively, the rotating shafts can rotate along the rotating seats under the driving of the rotating motors, driven shafts are arranged on two sides of one end, away from the rotating seats, of each rotating shaft, the other ends of the six driven shafts are rotatably arranged on a lifting plate, and the lifting plate can lift in the direction perpendicular to the horizontal plane; lifter plate central authorities still are provided with the pivot motor, pivot motor below is fixed with sucker structure, sucker structure includes horizontal slide rail and two sucking disc poles, two sucking disc pole can along horizontal slide rail slides, every the below of sucking disc pole all is provided with fixed horizontal pole, the both ends of fixed horizontal pole all are provided with the sucking disc, and is same distance between two sucking discs on the fixed horizontal pole does the width of finished product rubber coating carbon pipe heating film.
Advantageous effects
(1) Compared with the prior art and the carbon tube heating film coated with PI coatings on two sides, the carbon tube heating film adopts single-side coating, and simplifies the complex double-side spraying process.
(2) Because the coating surface coated on the single side can generate the phenomenon of expansion with heat and contraction with cold in the drying process, one side of a carbon tube heating film coated with PI coating can generate internal stress and then curl due to drying in the forming process, so that the carbon nanotube film with weaker bending strength can generate local fracture due to the internal stress, the invention further provides a hot pressing platform capable of hot pressing on the single side, the temperature of the carbon nanotube film B is ensured to be higher than that of one side of the PI film in the hot pressing process, and when the PI coating C is coated on the other side of the carbon nanotube film in the subsequent process, the temperature of the carbon nanotube film is closer to that of the coated PI coating, so that the carbon nanotube film layer can be cooled simultaneously with the PI coating to ensure that the internal stress borne by the carbon nanotube film is transferred to the hot pressing PI film on the other side of the carbon nanotube film, and the characteristic that the self-bending strength of the hot pressing PI film is stronger than that of the hot pressing PI film is utilized to relieve the local stress bending caused by the drying process in the carbon nanotube film Fault breaking; through setting up to be less than or equal to with the thickness of coating PI coating C PI membrane A's thickness, both can avoid gas expansion heating membrane one side to appear the swell phenomenon when heating the use, can make the internal stress that the back coating PI coating C produced of drying again be unlikely to produce great curling influence to PI membrane A layer, avoid the whole curling of rubber coating carbon tube heating membrane, increase PI membrane A's thickness can make its bending resistance strengthen by a wide margin.
(3) According to the invention, the preheating zone and the drying zone which are communicated and heated by the same top illuminating lamp are designed, the drying host is arranged at the bottom of the lifting support frame to ensure that the drying temperature of the drying zone is higher, the drying holes and the ventilation channel are arranged at the bottom of the drying disc to dry the gluing carbon tube heating film, so that the gluing carbon tube heating films in the stacked multi-layer drying disc can be dried together, meanwhile, the arrangement of the ventilation channel improves the contact area between the gluing carbon tube heating film and high-temperature drying air, and the drying efficiency is improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the laminating apparatus for gluing a carbon tube heating film according to the present invention;
fig. 2 is a schematic view of a top view of a laminating apparatus for gluing a carbon tube heating film according to the present invention with a part of the outer shell removed;
FIG. 3 is a schematic structural view of a laminating apparatus for gluing a carbon tube heating film according to the present invention with a part of the outer shell removed;
fig. 4 is a schematic view of a partial structure of a laminating apparatus for gluing a carbon tube heating film according to the present invention;
fig. 5 is a partial enlarged view of a hot-pressing compounding mechanism of the laminating apparatus for gluing a carbon tube heating film according to the present invention;
FIG. 6 is a partial enlarged view of a robot of the laminating apparatus for gluing a carbon tube heating film according to the present invention;
fig. 7 is a partial enlarged view of a drying structure of the laminating apparatus for gluing a carbon tube heating film according to the present invention;
fig. 8 is a partially enlarged view of a drying tray of the laminating apparatus for gluing a carbon tube heating film according to the present invention;
fig. 9 is a sectional view of the drying tray of fig. 8 taken along the direction a-a.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-9, a method for preparing a glued carbon tube heating film based on a lamination production process comprises the following steps:
(a) one end of a PI film A is coiled on a first raw material roller 101 of a hot-pressing compounding mechanism 1 of laminating equipment, and the other end of the PI film A penetrates through a feed roller 102 and is pressed on a hot-pressing platform 2 by a material pressing roller 103; one end of a carbon nanotube film B is coiled on a second raw material roller 106, the other end of the carbon nanotube film B passes through the space between an upper pinch roller 104 and a lower pinch roller 105 and is pressed between a hot-pressing platform 2 and a PI film by a pressure roller 103, and the carbon nanotube film B of the hot-pressed single-side hot-pressed PI film A can be conveyed to a coating conveying belt 3 by the rotation of the pressure roller 103;
(b) placing the carbon nanotube film B of the single-side hot-pressed PI film A in a spraying station on a coating conveyor belt 3, arranging the carbon nanotube film on one side which is not hot-pressed with the PI film towards the coating conveyor belt 3, and coating the PI coating C on the carbon nanotube film on one side which is not hot-pressed with the PI film by a spraying gun 304 arranged in a spraying hole 302 on the spraying station;
(c) the carbon nanotube film B with the PI film A on one side and the PI coating C on the other side is hot-pressed to form a gluing carbon tube heating film, the gluing carbon tube heating film can be conveyed to the front of a dryer 5 through a coating conveying belt 3, the gluing carbon tube heating film is conveyed into a drying disc 7 through a manipulator 6 and conveyed to the dryer 5, and a finished gluing carbon tube heating film is obtained after drying.
Further, the carbon nanotube film of the single-side hot-pressing PI film hot-pressed on the hot-pressing platform 2 is arranged such that the PI film is located above the carbon nanotube film, and the carbon nanotube film directly contacts the hot-pressing platform 2; the carbon nanotube film contact hot-pressing platform 2 with better heat resistance and thermal conductivity is ensured through the arrangement, the PI film A needing hot pressing is better protected (the PI film A is not directly hot-pressed in contact with the heating platform), the hot-pressing temperature is ensured, the temperature of the carbon nanotube film B is higher than that of one side of the PI film in the hot-pressing process, when the PI coating C is coated on the other side of the carbon nanotube film in the subsequent process, the temperature of the carbon nanotube film is closer to that of the PI coating, therefore, the carbon nanotube film layer can be simultaneously cooled with the PI coating to ensure that the internal stress borne by the carbon nanotube film is transferred to the hot-pressing PI film on the other side of the carbon nanotube film, and the local fault caused by the stress bending generated by the drying process in the carbon nanotube film is relieved by utilizing the characteristic that the self bending strength of the hot-pressing PI film is stronger than that of the carbon nanotube film.
Further, the drying step in the step (c) further comprises:
(1) preheating: the drying disk 7 is placed in a preheating zone 501 for preheating, the preheating time is 0.5-1min, and the preheating zone 501 is communicated with a drying zone 502 and is heated by a same top irradiation lamp 504;
(2) integral drying: the drying zone 502 is internally provided with a lifting support frame 503, the lifting support frame 503 can be lifted to ensure that the top surface height of the lifting support frame is lower than the transmission structure on the preheating zone 501, the drying disk 7 can be conveyed to the drying zone 502 from the preheating zone 501 through the transmission structure, after the drying disk 7 enters the drying zone 502, a drying host arranged at the bottom of the lifting support frame 503 is started, and the coated carbon tube heating film is dried through a drying hole 701 at the bottom of the drying disk 7 and an air duct 702. Through design intercommunication setting and all carry out preheating zone 501 and the drying zone 502 that heat through same top irradiation lamp, use same top energy to preheat and dry, improved drying lamp availability factor, it is higher to set up the stoving host computer in lifting support frame 503 bottom simultaneously and guarantees the stoving temperature of drying zone 502, has improved energy availability factor and drying efficiency.
Further, one end face of the gluing carbon tube heating film coated with the PI coating C is arranged towards the drying hole 701 and the air duct 702, high-temperature drying air is introduced into the air duct 702, and the drying disc 7 may be stacked on the lifting support frame 503. Drying holes 701 and ventilation ducts 702 are arranged at the bottom of the drying disc 7 to dry the gluing carbon tube heating film, so that the gluing carbon tube heating film in the multilayer drying disc 7 which is stacked can be dried together, the drying efficiency is improved, meanwhile, the arrangement of the ventilation ducts improves the contact area between the gluing carbon tube heating film and high-temperature drying air, and the drying efficiency is improved.
Further, the periphery of the dryer 5 is sealed and vacuumized, and the dryer 5 is dried by introducing high-temperature air in a nitrogen environment.
Further, the temperature of high-temperature drying air introduced into the air duct 702 is 80-100 ℃, and the overall drying time of each adhesive-coated carbon tube heating film is not less than 10 min.
Further, a cutting knife 4 on one side of the coating conveying belt 3 close to the film pressing mechanism 1 can cut the carbon nanotube film of the single-side hot-pressing PI film into a length equal to the width of the coating conveying belt 3.
Further, the coating transmission band 3 is last to have placed spraying tray 301, and spraying tray 301 is along the transmission of coating transmission band 3, the width of spraying tray 301 with the width of coating transmission band 3 is the same, is provided with spraying hole 302 and spray gun 304 on the spraying tray 301, works as the transmission of coating transmission band 3 drives spraying tray 301 and moves forward, and spray gun 304 perpendicular to coating transmission band 3 moves and can be with the comprehensive PI coating C that coats of the carbon nanotube film in spraying tray 301, spraying tray 301 is hollow frame construction, spraying tray 301 can be held and do the return operation by the sucker structure 303 who coats the transmission band 3 top and set up.
Preferably, the drying tray 7 is provided with a drying hole 701 and an air duct 702, the drying hole 701 is disposed on the air duct 702 at an interval, the drying trays 7 are stacked in the dryer 5 and can enter the lifting support 503 at the upper part of the lifting support 503 to leave the lifting support 503 below the lifting support 503, so as to ensure that the drying time of the glued carbon tube heating film in each drying tray 7 is the same.
Preferably, the drying disk 7 is provided with a first protrusion 703 and a second protrusion 704, the height of the first protrusion 703 is higher than the height of the second protrusion 704, the end portions of both sides of the drying disk 7 are provided with the first protrusion 703, two second protrusions 704 are arranged between the two first protrusions 703 at intervals, the air duct 702 is formed between the second protrusions 704, and the drying holes 701 are arranged on the air duct 702 at intervals. Through setting up first arch 703 and second arch 704 respectively, because the reduction of moisture leads to the quality to reduce in the rubber coating carbon pipe heated film forming process, can be locally supported by high temperature drying air and break away from the support of two second arch 704, and then can make the space between two second arch 704 communicate behind the high temperature drying air lets in the ventiduct 702, enlarge the area of ventiduct 702, further can make the rubber coating carbon pipe heated film part by two protruding 704 support parts of second obtain higher stoving, improve drying efficiency.
Preferably, five first protrusions 703 and eight second protrusions 704 are arranged on the drying tray 7, an air duct 702 is formed between every two second protrusions 704, a plurality of drying holes 701 are arranged in each air duct 702, a bearing base 705 is further arranged below each drying tray 7, the bearing base 705 is fixedly arranged on the lifting support frame 503, and the high-temperature drying air is dispersed to the drying holes 701 in the stacked layers of drying trays 7 through the bearing base 705.
Further, the thickness of the carbon nano tube film B is 0.1-3 micrometers, the thickness of the PI film A is 0.5-1 micrometer, the thickness of the coating PI coating C is 0.03-1 micrometer, the thickness of the finished product of the gummed carbon tube heating film is 0.3-5 micrometers, and the thickness of the coating PI coating C is less than or equal to that of the PI film A; through setting up to be less than or equal to with the thickness of coating PI coating C PI membrane A's thickness, both can avoid gas expansion heating membrane one side to appear the swell phenomenon when heating the use, can make the internal stress that the back coating PI coating C produced of drying again be unlikely to produce great curling influence to PI membrane A layer, avoid the whole curling of rubber coating carbon tube heating membrane, increase PI membrane A's thickness can make its bending resistance strengthen by a wide margin.
The application also relates to laminating equipment which comprises a hot-pressing compound mechanism 1, a hot-pressing platform 2, a coating conveying belt 3, a cutting knife 4, a dryer 5, a manipulator 6 and a drying disc 7, the hot-pressing compound mechanism 1 comprises a first raw material roller 101, a feed roller 102, a nip roller 103, a second raw material roller 106, an upper pinch roller 104 and a lower pinch roller 105, wherein, one end of the PI film A is coiled on the first raw material roller 101, the other end of the PI film A passes through the feed roller 102 and is pressed on the hot-pressing platform 2 by the nip roller 103, one end of the carbon nanotube film B is coiled on the second raw material roller 106, the other end of the carbon nanotube film B passes through the upper pinch roller 104 and the lower pinch roller 105 and is pressed between the hot-pressing platform 2 and the PI film by the nip roller 103, the carbon nanotube film B of the hot-pressed single-side PI film A can be conveyed to the coating conveying belt 3 by the rotation of the material pressing roller 103; a cutting knife 4 is arranged on one side of the coating transmission belt 3 close to the film pressing mechanism 1;
further, be provided with spraying tray 301 on the coating transmission band 3, the transmission of coating transmission band 3 can be followed to spraying tray 301, spraying tray 301's width with the width of coating transmission band 3 is the same, be provided with spraying hole 302 and spray gun 304 on the spraying tray 301, the transmission of coating transmission band 3 can drive spraying tray 301 and move forward, and spray gun 304 is perpendicular to the carbon nanotube film coating PI coating C of 3 motion in to spraying tray 301 of coating transmission band, spraying tray 301 is hollow frame construction, spraying tray 301 can be held and do the return operation by the sucker structure 303 of coating transmission band 3 top setting.
Further, the manipulator 6 includes a top plate 601, the top plate 601 is slidably disposed on a gantry structure of a production facility and is capable of moving along an X direction and a Y direction in a horizontal plane, the top plate 601 is provided with 3 rotating seats 602, the 3 rotating seats 602 are provided with a rotating motor 603 and a rotating shaft 604, the rotating shaft 604 is driven by the rotating motor 603 to rotate along the rotating seats 602, two sides of one end of each rotating shaft 604 far away from the rotating seats 602 are provided with driven shafts 605, the other ends of the six driven shafts 605 are rotatably disposed on a lifting plate 606, and the lifting plate 606 is capable of lifting in a direction perpendicular to the horizontal plane; the center of the lifting plate 606 is further provided with a rotating shaft motor 607, a sucker structure 608 is fixed below the rotating shaft motor 607, the sucker structure 608 comprises a horizontal slide rail 609 and two sucker rods 6010, the sucker rods 6010 can slide along the horizontal slide rail 609, each sucker rod 6010 is provided with a fixed cross rod 6011 below, two ends of the fixed cross rod 6011 are provided with suckers 6012, and the distance between the two suckers 6012 on the same fixed cross rod 6011 is the width of the finished product gluing carbon tube heating film.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A preparation method of a gluing carbon tube heating film based on a lamination production process is characterized by comprising the following steps:
(a) one end of the PI film A is coiled on a first raw material roller of a hot-pressing compounding mechanism of laminating equipment, and the other end of the PI film A penetrates through a feed roller and is pressed on a hot-pressing platform by a material pressing roller; one end of a carbon nanotube film B is coiled on a second raw material roller, the other end of the carbon nanotube film B passes through the space between an upper pressing roller and a lower pressing roller and is pressed between a hot-pressing platform and the PI film A by a pressing roller, and the carbon nanotube film B of the hot-pressed and molded single-side hot-pressed PI film A can be conveyed to a coating conveying belt by the rotation of the pressing roller;
(b) placing the carbon nanotube film B of the single-side hot-pressed PI film A in a spraying station on a coating conveyor belt, arranging the carbon nanotube film B on one side which is not hot-pressed with the PI film A towards the coating conveyor belt, and coating a PI coating C on the carbon nanotube film B on one side which is not hot-pressed with the PI film A by a spraying gun arranged in a spraying hole on the spraying station;
(c) and (3) hot-pressing the PI film A on one side and coating the PI coating C on the other side to form a carbon nanotube film B which is a gluing carbon tube heating film, conveying the gluing carbon tube heating film to the front of a dryer through a coating conveying belt, conveying the gluing carbon tube heating film into a drying disc by a manipulator, conveying the gluing carbon tube heating film to the dryer, and drying to obtain a finished gluing carbon tube heating film.
2. The method of claim 1, wherein: the carbon nanotube film of the single-side hot-pressing PI film hot-pressed on the hot-pressing platform is arranged in a way that the PI film A is positioned above the carbon nanotube film B, the carbon nanotube film B directly contacts the hot-pressing platform, and the temperature of the carbon nanotube film B in the hot-pressing process is higher than that of one side of the PI film A.
3. The method of claim 1, wherein: the drying step in the step (c) further comprises:
(1) preheating: placing the drying disc in a preheating zone for preheating for 0.5-1min, wherein the preheating zone is communicated with the drying zone and is heated by a same top irradiation lamp;
(2) integral drying: be provided with lift support frame in the drying zone, lift support frame can go up and down in order to guarantee that its top surface height is less than the transmission structure on the preheating zone, can convey the drying dish to the drying zone by the preheating zone through transmission structure, after the drying dish got into the drying zone, set up in the stoving host computer of lift support frame bottom is opened to dry the rubber coating carbon nanotube heating film through drying hole and the ventiduct of drying dish bottom.
4. The production method according to claim 3, characterized in that: the temperature of high-temperature drying air connected into the air duct is 80-100 ℃, and the whole drying time of each gluing carbon tube heating film is not less than 10 min.
5. The production method according to claim 1, characterized in that: the cutting knife at one side of the coating conveying belt close to the film pressing mechanism can cut the carbon nanotube film of the single-side hot-pressing PI film into a length equal to the width of the coating conveying belt.
6. The method of claim 1, wherein: the drying disc is provided with drying holes and an air duct, the drying holes are arranged on the air duct at intervals, the drying discs are stacked in the dryer and can enter the lifting support frame from the upper part of the lifting support frame and leave the lifting support frame below the lifting support frame; rubber coating carbon pipe heating film coating has PI coating C's one end to drying hole and air duct set up, insert high temperature drying air in the air duct.
7. The production method according to claim 3, characterized in that: the thickness of the carbon nano tube film B is 0.1-3 micrometers, the thickness of the PI film A is 0.5-1 micrometer, the thickness of the coating PI coating C is 0.03-1 micrometer, the thickness of the finished product of the gummed carbon tube heating film is 0.3-5 micrometers, and the thickness of the coating PI coating C is smaller than or equal to that of the PI film A.
8. A laminating apparatus, characterized by: the laminating equipment comprises a hot-pressing compounding mechanism, a hot-pressing platform, a coating transmission belt, a cutting knife, a dryer, a manipulator and a drying disc, wherein the hot-pressing compounding mechanism comprises a first raw material roller, a feeding roller, a pressure roller, a second raw material roller, an upper pressure roller and a lower pressure roller, one end of a PI film A is coiled on the first raw material roller, the other end of the PI film A penetrates through the feeding roller and is pressed on the hot-pressing platform by the pressure roller, one end of a carbon nanotube film B is coiled on the second raw material roller, the other end of the carbon nanotube film B penetrates through the upper pressure roller and the lower pressure roller and is pressed between the hot-pressing platform and the PI film by the pressure roller, and the carbon nanotube film B of the hot-pressing formed single-side hot-pressing PI film A can be conveyed to the coating transmission belt through the rotation of the pressure roller; one side of the coating transmission belt, which is close to the film pressing mechanism, is provided with a cutting knife.
9. Laminating device according to claim 8, characterised in that: be provided with the spraying tray on the coating transmission band, the spraying tray can be followed the transmission of coating transmission band, the width of spraying tray with the width of coating transmission band is the same, the spraying tray is provided with spraying hole and spray gun, the transmission of coating transmission band can drive the spraying tray and move forward, and spray gun perpendicular to coating transmission band moves carbon nanotube film coating PI coating C in to the spraying tray, the spraying tray is hollow frame construction, the spraying tray can be held and is the return operation by the sucker structure who coats the transmission band top and set up.
10. Laminating device according to claim 8, characterised in that: the manipulator comprises a top plate, the top plate can be arranged on a gantry structure of production equipment in a sliding mode and can move along the X direction and the Y direction in the horizontal plane respectively, 3 rotating seats are arranged on the top plate, rotating motors and rotating shafts are arranged on the 3 rotating seats respectively, the rotating shafts can rotate along the rotating seats under the driving of the rotating motors, driven shafts are arranged on two sides of one end, away from the rotating seats, of each rotating shaft, the other ends of the six driven shafts are arranged on a lifting plate in a rotating mode, and the lifting plate can lift in the direction perpendicular to the horizontal plane; lifter plate central authorities still are provided with the pivot motor, pivot motor below is fixed with sucker structure, sucker structure includes horizontal slide rail and two sucking disc poles, two the sucking disc pole can along horizontal slide rail slides, every the below of sucking disc pole all is provided with fixed horizontal pole, the both ends of fixed horizontal pole all are provided with the sucking disc, and are same distance between two sucking discs on the fixed horizontal pole is the width of finished product rubber coating carbon pipe heating film.
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| CN202210652734.2A CN115090498B (en) | 2022-06-08 | 2022-06-08 | Preparation method of gluing carbon tube heating film based on lamination production process and lamination equipment |
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|---|---|---|---|---|
| CN101920955A (en) * | 2009-06-09 | 2010-12-22 | 清华大学 | Carbon nano-tube film protection structure and preparation method thereof |
| WO2012064147A2 (en) * | 2010-11-11 | 2012-05-18 | (주)탑나노시스 | Apparatus for continuously preparing carbon nanotube-coated film, and method for preparing carbon nanotube-coated film using same |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101920955A (en) * | 2009-06-09 | 2010-12-22 | 清华大学 | Carbon nano-tube film protection structure and preparation method thereof |
| WO2012064147A2 (en) * | 2010-11-11 | 2012-05-18 | (주)탑나노시스 | Apparatus for continuously preparing carbon nanotube-coated film, and method for preparing carbon nanotube-coated film using same |
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Denomination of invention: Preparation method and lamination equipment for heating film of coated carbon pipe based on lamination production process Effective date of registration: 20230608 Granted publication date: 20230530 Pledgee: Zhejiang Tailong Commercial Bank Co.,Ltd. Ningbo Branch Pledgor: Ningbo Qiyun New Material Technology Co.,Ltd. Registration number: Y2023980043239 |
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Granted publication date: 20230530 Pledgee: Zhejiang Tailong Commercial Bank Co.,Ltd. Ningbo Branch Pledgor: Ningbo Qiyun New Material Technology Co.,Ltd. Registration number: Y2023980043239 |