CN111703096A - Manufacturing process of TPU waterproof film - Google Patents
Manufacturing process of TPU waterproof film Download PDFInfo
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- CN111703096A CN111703096A CN202010517350.0A CN202010517350A CN111703096A CN 111703096 A CN111703096 A CN 111703096A CN 202010517350 A CN202010517350 A CN 202010517350A CN 111703096 A CN111703096 A CN 111703096A
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- plastic particles
- film
- raw materials
- coating
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- 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
- B29D7/01—Films or sheets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/0005—Condition, form or state of moulded material or of the material to be shaped containing compounding ingredients
- B29K2105/0008—Anti-static agents
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a manufacturing process of a TPU waterproof film, which comprises the following manufacturing steps: s1, preprocessing: cleaning all raw materials to be processed, keeping the raw materials clean, and placing the raw materials in a sealed container for temporary storage; s2, classification and proportioning: all plastic particles of the processing raw materials are classified, weighed and proportioned, and then placed in a feeding area to wait for feeding. According to the invention, the coating compounding process is added in the manufacturing process, the anti-static carbon-series coating is adopted as the main raw material, and the anti-static coating is compounded on the semi-finished TPU film through compound hot pressing, so that the TPU film has an anti-static effect on the basis of water resistance, the film breakdown condition existing when static is large can be effectively avoided in the application process, the functionality is strong, more requirements of users are met during application, and the practicability is strong.
Description
Technical Field
The invention relates to the technical field of films, in particular to a manufacturing process of a TPU waterproof film.
Background
The film is a thin and soft transparent sheet and is made of plastic, adhesive, rubber or other materials, and the scientific explanation of the film is as follows: two-dimensional materials formed by deposition of atoms, molecules or ions on a substrate surface, for example: optical films, composite films, superconducting films, polyester films, nylon films, plastic films and the like, and the films are widely used in the industries of electronics, machinery, printing and the like.
The TPU waterproof film on the current market is mostly single in the function of the applied process, and usually only has independent waterproof function, different requirements of a user cannot be met when the TPU waterproof film is used, certain limitation exists during use, and when the TPU waterproof film meets stronger electrostatic condition in the applied process, the electrostatic breakdown film is easy to occur, the antistatic effect cannot be realized, and the application is troublesome.
Disclosure of Invention
The invention provides a manufacturing process of a TPU waterproof film aiming at the defects in the background art.
The invention adopts the following technical scheme to solve the phenomenon, and the manufacturing process of the TPU waterproof film comprises the following steps:
s1, preprocessing: cleaning all raw materials to be processed, keeping the raw materials clean, and placing the raw materials in a sealed container for temporary storage;
s2, classification and proportioning: classifying all plastic particles of processing raw materials, weighing and proportioning, and then placing the plastic particles in a feeding area for waiting for feeding;
s3, feeding and mixing: uniformly pouring raw materials into a feeding stirrer by workers, stirring plastic particles by the feeding stirrer to enable the plastic particles to be fully mixed together, and then conveying the plastic particles to the inside of a casting machine by the conveying of the feeding stirrer;
s4, casting: melting plastic particles by an extruder of a casting machine, extruding the plastic particles by a corresponding forming die, cooling and forming by a cooling roller, and finally, winding the product after traction and edge cutting;
s5, coating composition: coating the prepared antistatic agent on the outer surface of the semi-finished film, and compounding the semi-finished film in a hot pressing mode to form the TPU waterproof film with the antistatic function;
s6, cooling: and finally, cooling the film by adopting an air cooling mode, and then obtaining a finished film.
In a further preferred embodiment of the present invention, in step S1, all the raw material particles are soaked and cleaned to remove dust attached to the outside of the plastic particles during transportation, and then the raw material is placed in a draining device to be drained and transferred to the inside of a container with high sealing performance for storage.
In a further preferred embodiment of the present invention, in step S2, the plastic pellets are taken out and weighed using a high precision scale, and after being proportioned, the plastic pellets are placed inside the feeding area to wait for feeding.
In a further preferred embodiment of the present invention, in step S3, the worker pours the plastic particles into the feeder, and stirs them at a high speed by the stirrer, so that the plastic particles can be mixed together sufficiently, thereby shortening the time required for mixing, and then the plastic particles are fed into the casting machine for casting.
As a further preferable mode of the present invention, in step S4, the mixed raw materials are uniformly fed into an extruder, the plastic particles are heated at a high temperature by the extruder to be fused together, then extruded by a corresponding T-shaped forming die, cast in a sheet form onto the roll surface of a cooling roller rotating stably, and the sheet-form film is obtained by cooling and shaping the film on the cooling roller, and then subjected to the processing steps of drawing, trimming, winding, etc.
In a further preferred embodiment of the present invention, in step S5, an antistatic coating material prepared in advance is applied to the outside of the film, and an antistatic carbon-based coating material is mainly used, and carbon black is used as a conductive component, and the coating material is applied to the surface of the plastic to form a uniform coating layer, thereby imparting conductivity to the film.
As a further preferable mode of the present invention, in step S6, the film is driven to spread by the cold air blown by the fan along with the continuous rotation of the two rollers, so as to rapidly cool the film product, thereby obtaining the product.
According to the invention, the coating compounding process is added in the manufacturing process, the anti-static carbon-series coating is adopted as the main raw material, and the anti-static coating is compounded on the semi-finished TPU film through compound hot pressing, so that the TPU film has an anti-static effect on the basis of water resistance, the film breakdown condition existing when static is large can be effectively avoided in the application process, the functionality is strong, more requirements of users are met during application, and the practicability is strong.
Drawings
FIG. 1 is a flow chart of the present invention.
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.
The invention provides a technical scheme that: a manufacturing process of a TPU waterproof film,
the manufacturing method comprises the following steps:
s1, preprocessing: cleaning all raw materials to be processed, keeping the raw materials clean, and placing the raw materials in a sealed container for temporary storage;
s2, classification and proportioning: classifying all plastic particles of processing raw materials, weighing and proportioning, and then placing the plastic particles in a feeding area for waiting for feeding;
s3, feeding and mixing: uniformly pouring raw materials into a feeding stirrer by workers, stirring plastic particles by the feeding stirrer to enable the plastic particles to be fully mixed together, and then conveying the plastic particles to the inside of a casting machine by the conveying of the feeding stirrer;
s4, casting: melting plastic particles by an extruder of a casting machine, extruding the plastic particles by a corresponding forming die, cooling and forming by a cooling roller, and finally, winding the product after traction and edge cutting;
s5, coating composition: coating the prepared antistatic agent on the outer surface of the semi-finished film, and compounding the semi-finished film in a hot pressing mode to form the TPU waterproof film with the antistatic function;
s6, cooling: and finally, cooling the film by adopting an air cooling mode, and then obtaining a finished film.
In step S1, all raw material particles are soaked and cleaned to clean dust attached to the outside of the plastic particles during transportation, and then the raw material is placed in a draining device to control moisture, and transferred to the inside of a container with strong sealing performance for storage.
In step S2, the plastic particles are taken out and weighed by a high precision scale, and the plastic particles are proportioned and placed in the loading area to wait for loading.
In step S3, the worker pours the plastic particles into the feeder and stirs them at high speed by the stirrer, so that the plastic particles can be mixed together sufficiently, the time required for mixing is shortened, and then the plastic particles are fed into the casting machine for casting.
In step S4, the mixed raw materials uniformly enter the extruder, the plastic particles are heated at high temperature by the extruder to be fused together, then the plastic particles are extruded by the corresponding T-shaped forming die and cast in a sheet shape onto the roll surface of the cooling roller rotating stably, the semi-finished product can be obtained by cooling and shaping the film on the cooling roller through the film, and then the sheet-shaped film can be obtained through the processing steps of traction, edge cutting, rolling and the like.
In step S5, the antistatic coating prepared in advance is applied and pressed on the outside of the film, and at the same time, the antistatic carbon-based coating is mainly used, and carbon black is used as a conductive component, and the coating is coated on the surface of the plastic to form a uniform coating, thereby endowing the film with conductive performance.
In step S6, the film is driven to spread by the cold air blown by the fan along with the continuous rotation of the two rollers, so that the film product is rapidly cooled to obtain a finished product.
In conclusion, the coating compounding process is added in the manufacturing process, the anti-static carbon-series coating is adopted as the main raw material, and the anti-static coating is compounded on the semi-finished TPU film through compound hot pressing, so that the TPU film has an anti-static effect on the basis of water resistance, the situation that the film is broken down when static exists can be effectively avoided in the application process, the functionality is strong, more requirements of users are met during application, and the practicability is strong
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. A manufacturing process of a TPU waterproof film is characterized by comprising the following manufacturing steps:
s1, preprocessing: cleaning all raw materials to be processed, keeping the raw materials clean, and placing the raw materials in a sealed container for temporary storage;
s2, classification and proportioning: classifying all plastic particles of processing raw materials, weighing and proportioning, and then placing the plastic particles in a feeding area for waiting for feeding;
s3, feeding and mixing: uniformly pouring raw materials into a feeding stirrer by workers, stirring plastic particles by the feeding stirrer to enable the plastic particles to be fully mixed together, and then conveying the plastic particles to the inside of a casting machine by the conveying of the feeding stirrer;
s4, casting: melting plastic particles by an extruder of a casting machine, extruding the plastic particles by a corresponding forming die, cooling and forming by a cooling roller, and finally, winding the product after traction and edge cutting;
s5, coating composition: coating the prepared antistatic agent on the outer surface of the semi-finished film, and compounding the semi-finished film in a hot pressing mode to form the TPU waterproof film with the antistatic function;
s6, cooling: and finally, cooling the film by adopting an air cooling mode, and then obtaining a finished film.
2. The process of claim 1, wherein in step S1, all the raw material particles are soaked and cleaned to remove dust attached to the exterior of the plastic particles during transportation, and then the raw material is placed in a draining device to remove moisture, and transferred to a container with high sealing property for storage.
3. The process of claim 1, wherein in step S2, the plastic particles are taken out and weighed by a high precision scale, and the plastic particles are proportioned and placed in the loading area to wait for loading.
4. The process of claim 1, wherein in step S3, the corresponding plastic particles are poured into the feeder by the worker and stirred at high speed by the stirrer, so that the plastic particles can be mixed together sufficiently, the time required for mixing is shortened, and then the plastic particles are fed into the casting machine for casting.
5. The process for preparing the TPU waterproof film according to claim 1, wherein in step S4, the mixed raw materials are uniformly fed into an extruder, plastic particles are heated at a high temperature by the extruder to be fused together, then the plastic particles are extruded by a corresponding T-shaped forming die, the mixture is cast on the roll surface of a cooling roller which rotates stably in a sheet shape, a semi-finished product can be obtained by cooling and shaping a membrane on the cooling roller, and then the semi-finished product can be obtained by processing steps such as traction, edge cutting and rolling.
6. The process of claim 1, wherein in step S5, the antistatic coating is applied on the exterior of the film, and the antistatic carbon-based coating is mainly used, and carbon black is used as the conductive component, and the coating is applied on the surface of the plastic to form a uniform coating, thereby providing the conductive property to the film.
7. The process of claim 1, wherein in step S6, the film is spread by blowing with a cold wind from a blower with the two rollers rotating continuously, so as to cool the film quickly to obtain the final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010517350.0A CN111703096A (en) | 2020-06-09 | 2020-06-09 | Manufacturing process of TPU waterproof film |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010517350.0A CN111703096A (en) | 2020-06-09 | 2020-06-09 | Manufacturing process of TPU waterproof film |
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| CN111703096A true CN111703096A (en) | 2020-09-25 |
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| CN202010517350.0A Pending CN111703096A (en) | 2020-06-09 | 2020-06-09 | Manufacturing process of TPU waterproof film |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113524736A (en) * | 2021-06-09 | 2021-10-22 | 广州市环友高分子新材料有限公司 | Environment-friendly TPU film production system |
Citations (6)
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|---|---|---|---|---|
| JPS60177031A (en) * | 1984-02-23 | 1985-09-11 | Seiko Kasei Kk | Electrically conductive casting film |
| CN101670653A (en) * | 2009-08-04 | 2010-03-17 | 东莞市雄林塑胶有限公司 | Method for producing TPU low-permeation waterproof humidity-permeant film and equipment thereof |
| CN102069617A (en) * | 2009-11-20 | 2011-05-25 | 尤尼吉可株式会社 | Hot water resistant polyamide thin layer and manufacturing method thereof |
| KR20120050539A (en) * | 2010-11-08 | 2012-05-21 | 재단법인대구경북과학기술원 | Functional polyurethane film and preparation thereof |
| CN103507191A (en) * | 2012-06-22 | 2014-01-15 | 东莞市雄林新材料科技有限公司 | Novel curtain coating coiled intermediate permeation waterproof and moisture permeable TPU (thermoplastic polyurethane) membrane |
| CN109705383A (en) * | 2018-12-18 | 2019-05-03 | 合肥乐凯科技产业有限公司 | A kind of electrostatic prevention film |
-
2020
- 2020-06-09 CN CN202010517350.0A patent/CN111703096A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60177031A (en) * | 1984-02-23 | 1985-09-11 | Seiko Kasei Kk | Electrically conductive casting film |
| CN101670653A (en) * | 2009-08-04 | 2010-03-17 | 东莞市雄林塑胶有限公司 | Method for producing TPU low-permeation waterproof humidity-permeant film and equipment thereof |
| CN102069617A (en) * | 2009-11-20 | 2011-05-25 | 尤尼吉可株式会社 | Hot water resistant polyamide thin layer and manufacturing method thereof |
| KR20120050539A (en) * | 2010-11-08 | 2012-05-21 | 재단법인대구경북과학기술원 | Functional polyurethane film and preparation thereof |
| CN103507191A (en) * | 2012-06-22 | 2014-01-15 | 东莞市雄林新材料科技有限公司 | Novel curtain coating coiled intermediate permeation waterproof and moisture permeable TPU (thermoplastic polyurethane) membrane |
| CN109705383A (en) * | 2018-12-18 | 2019-05-03 | 合肥乐凯科技产业有限公司 | A kind of electrostatic prevention film |
Non-Patent Citations (2)
| Title |
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| 左继成等编: "《高分子材料成型加工基本原理及工艺》", 31 January 2017, 北京理工大学出版社 * |
| 黄锐编: "《塑料工程手册》", 30 April 2000, 机械工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113524736A (en) * | 2021-06-09 | 2021-10-22 | 广州市环友高分子新材料有限公司 | Environment-friendly TPU film production system |
| CN113524736B (en) * | 2021-06-09 | 2023-01-10 | 广州市环友高分子新材料有限公司 | Environment-friendly TPU film production system |
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Application publication date: 20200925 |