CN113442476A - Fluororesin helium barrier film multilayer co-extrusion film process with good compatibility - Google Patents
Fluororesin helium barrier film multilayer co-extrusion film process with good compatibility Download PDFInfo
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- CN113442476A CN113442476A CN202110687780.1A CN202110687780A CN113442476A CN 113442476 A CN113442476 A CN 113442476A CN 202110687780 A CN202110687780 A CN 202110687780A CN 113442476 A CN113442476 A CN 113442476A
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- film
- fluororesin
- multilayer
- extrusion
- extruder
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Classifications
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0017—Combinations of extrusion moulding with other shaping operations combined with blow-moulding or thermoforming
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
- B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/27—Cleaning; Purging; Avoiding contamination
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/28—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of blown tubular films, e.g. by inflation
-
- 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
- B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
- B29K2027/12—Use of polyvinylhalogenides or derivatives thereof as moulding material containing fluorine
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a fluororesin helium barrier film multilayer co-extrusion film process with good compatibility, which comprises the following production raw materials: nylon, polyethylene, acid modified polyolefin composition, fluororesin, production facility: screw extruder, multilayer film extruder. This fluororesin multilayer co-extrusion film production technology, because current fluororesin helium separation film multilayer co-extrusion film technology is in work, because fluororesin does not possess the compatibility with other resin, so can make fluororesin can't carry out the multilayer with other resin and crowd altogether, and then reduce the problem of fluororesin in other field practicality, so adopt the multilayer co-extrusion technology and the special raw materials of special equipment, increase the compatibility of film, thereby the practicality of reinforcing film has filled the blank to multilayer co-extrusion fluororesin film blowing stretching technology domestically.
Description
Technical Field
The invention relates to the technical field of near space airship, in particular to a fluororesin helium barrier film multilayer co-extrusion film process with good compatibility.
Background
Fluororesin films are common industrial films at present, and the fluororesin films have the advantages of good transparency, good moisture resistance, excellent high temperature resistance, convenient use and the like and are widely applied to various industries, but the plastic films in the market at present mainly take polyethylene plastic films as main materials, bring serious pollution to the environment, are called as 'white pollution' due to the difficult degradability of the polyethylene plastic films, can release harmful gases and bring threats to the health of people; thin films are widely used in electronics, machinery, printing and the like, and thin film materials refer to thin metal or organic layers with the thickness ranging from a single atom to several millimeters; electronic semiconductor functional devices and optical coating are the main applications of thin film technology, and people are generally used to divide the thin film into the following types: the method comprises the following steps of: there are polyethylene films, polypropylene films, polyvinyl chloride films, polyester films, and the like, and classified according to the film use: there are agricultural films, packaging films; fluororesin films are a commonly used industrial film.
When the conventional fluororesin is subjected to multilayer coextrusion, the fluororesin cannot be subjected to multilayer coextrusion with other resins because the fluororesin does not have compatibility, and further the practicability of the fluororesin is reduced.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a fluororesin helium barrier film multilayer co-extrusion film process with good compatibility, and solves the problem that fluororesin and other resin helium barrier films are incompatible, so that the fluororesin cannot be subjected to multilayer co-extrusion with other resins, and further the practicability of the fluororesin is reduced.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a fluororesin helium barrier film multilayer co-extrusion film process with good compatibility comprises the following production raw materials: nylon, polyethylene, acid modified polyolefin composition, fluororesin, production facility: the production process of the fluororesin multilayer co-extrusion film comprises the following steps:
(1) adding raw materials: nylon, polyethylene, acid modified polyolefin composition and fluororesin are heated to 200-350 ℃ by the conventional device, and then the materials are heated to be in a molten state;
(2) and (3) improving compatibility: adopting a multi-layer co-extrusion process of special equipment and special raw materials, and introducing the required materials into the screw extruder;
(3) cooling the raw materials: cooling the material inside the screw extruder by cold water;
(4) extrusion blow molding: then after a period of cooling, starting the screw extruder to enable the screw extruder to work, and then extruding the mixed and processed materials;
(5) shaping: the melted resin is longitudinally stretched by the mechanical force of extrusion blow molding in an extruder, and is transversely stretched by compressed air blowing at the same time or later, so that the multilayer composite film is blown into a film, and the film is co-extruded by a plurality of extruders in the multilayer film extruder and is extruded at one head; cooling the multilayer film in the cooling line by a fan arranged on the extruder and a cooling ring arranged on the extruder head to finally obtain a rectangular fluororesin film;
(6) slitting: placing the shaped fluororesin film on a splitting machine, starting the splitting machine, and after a period of time, equally dividing the fluororesin film into a plurality of groups by the splitting machine;
(7) and (4) checking: then, detecting the cut fluororesin film by using the conventional detection device, judging whether the production of the fluororesin film meets the standard or not by observing the numerical value of the detection device, and then processing the fluororesin film which does not meet the standard again;
(8) packaging: and sticking the multilayer composite film which meets the relevant requirements and does not meet the relevant requirements after the inspection to a sample label, packaging the film which meets the relevant requirements, and entering a finished product raw material area.
Wherein, the compatibility of the fluororesin and other resins is improved by adopting a multi-layer co-extrusion process of special equipment and special raw materials.
Wherein extrusion exhaust gas G1(TRVOC, non-methane total hydrocarbon and ammonia) is generated in the extrusion process, is collected by a gas collecting hood above the multilayer film extruder, is purified by a set of UV light oxygen and activated carbon adsorption device and is discharged by 1 high exhaust funnel P1 with the height of 20 m.
Wherein, the cut film is folded in half, and the folded double-layer film is directly heat sealed; when the heat sealing is carried out, no waste is generated.
The multi-layer co-extruded film is prepared, and the fluororesin is positioned on the outermost layer in the multi-layer structure, so that the abrasion resistance and the ultraviolet resistance of the fluororesin film are higher than those of other resins.
(III) advantageous effects
The invention provides a fluororesin helium barrier film multilayer co-extrusion film process with good compatibility, which has the following beneficial effects:
(1) this fluororesin multilayer co-extrusion film production technology, because current fluororesin helium separation film multilayer co-extrusion film technology is in work, because fluororesin does not possess compatibility with other resin, so can make fluororesin can't carry out the multilayer with other resin and crowd altogether, and then reduce the problem of fluororesin practicality, so special equipment's multilayer co-extrusion technology and special raw materials increase the compatibility of film to the practicality of reinforcing film.
Detailed Description
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 of a fluororesin helium barrier film multilayer co-extrusion film with good compatibility, which comprises the following steps: the production process of the fluororesin multilayer co-extrusion film comprises the following raw materials: nylon, polyethylene, acid modified polyolefin composition, fluororesin, production facility: the production process of the fluororesin multilayer co-extrusion film comprises the following steps:
(1) adding raw materials: nylon, polyethylene, acid modified polyolefin composition and fluororesin are heated to 200-350 ℃ by the conventional device, and then the materials are heated to be in a molten state;
(2) and (3) improving compatibility: adopting a multi-layer co-extrusion process of special equipment and special raw materials, and introducing the required materials into the screw extruder;
(3) cooling the raw materials: cooling the material inside the screw extruder by cold water;
(4) extrusion blow molding: then after a period of cooling, starting the screw extruder to enable the screw extruder to work, and then extruding the mixed and processed materials;
(5) shaping: the melted resin is longitudinally stretched by the mechanical force of extrusion blow molding in an extruder, and is transversely stretched by compressed air blowing at the same time or later, so that the multilayer composite film is blown into a film, and the film is co-extruded by a plurality of extruders in the multilayer film extruder and is extruded at one head; cooling the multilayer film in the cooling line by a fan arranged on the extruder and a cooling ring arranged on the extruder head to finally obtain a rectangular fluororesin film;
(6) slitting: placing the shaped fluororesin film on a splitting machine, starting the splitting machine, and after a period of time, equally dividing the fluororesin film into a plurality of groups by the splitting machine;
(7) and (4) checking: then, detecting the cut fluororesin film by using the conventional detection device, judging whether the production of the fluororesin film meets the standard or not by observing the numerical value of the detection device, and then processing the fluororesin film which does not meet the standard again;
(8) packaging: sticking the multilayer composite film which meets the relevant requirements and does not meet the relevant requirements after inspection to a sample, packaging the film which meets the relevant requirements, and entering a finished product raw material area;
the method comprises the steps of adopting a multi-layer co-extrusion process of special equipment and special raw materials, introducing required materials into a screw extruder, preparing a multi-layer fluororesin film with good compatibility, wherein the compatibility of the fluororesin film is higher than that of other resins, generating extrusion waste gas G1(TRVOC, non-methane total hydrocarbon and ammonia) in the extrusion process, collecting the extrusion waste gas by a gas collecting hood above the multi-layer film extruder, purifying the extrusion waste gas by a set of 'UV light oxygen + activated carbon adsorption device', discharging the extrusion waste gas by 1 high exhaust pipe P1, folding the cut film in half, and directly and thermally sealing the folded double-layer film; when heat sealing is carried out, no waste is generated, and a multilayer co-extruded film is prepared, wherein the fluororesin is positioned at the outermost layer in the multilayer structure, so that the abrasion resistance and the ultraviolet resistance of the fluororesin film are higher than those of other resins.
In conclusion, the fluororesin multilayer co-extrusion film production process increases the compatibility of the film by adopting the multilayer co-extrusion process of special equipment and special raw materials, thereby avoiding that the fluororesin and other resin helium barrier films are incompatible, so that the fluororesin cannot be subjected to multilayer co-extrusion with other resins, and further reducing the practicability of the fluororesin.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A fluororesin helium barrier film multilayer co-extrusion film process with good compatibility comprises the following production raw materials: nylon, polyethylene, acid modified polyolefin composition, fluororesin, characterized by: production equipment: the production process of the fluororesin multilayer co-extrusion film comprises the following steps:
(1) adding raw materials: nylon, polyethylene, acid modified polyolefin composition and fluororesin are heated to 200-350 ℃ by the conventional device, and then the materials are heated to be in a molten state;
(2) and (3) improving compatibility: adopting a multi-layer co-extrusion process adopting special equipment and special raw materials, and introducing the required materials into a screw extruder;
(3) cooling the raw materials: cooling the material inside the screw extruder by cold water;
(4) extrusion blow molding: then after a period of cooling, starting the screw extruder to enable the screw extruder to work, and then extruding the mixed and processed materials;
(5) shaping: the melted resin is longitudinally stretched by the mechanical force of extrusion blow molding in an extruder, and is transversely stretched by compressed air blowing at the same time or later, so that the multilayer composite film is blown into a film, and the film is co-extruded by a plurality of extruders in the multilayer film extruder and is extruded at one head; cooling the multilayer film in the cooling line by a fan arranged on the extruder and a cooling ring arranged on the extruder head to finally obtain a rectangular fluororesin film;
(6) slitting: placing the shaped fluororesin film on a splitting machine, starting the splitting machine, and after a period of time, equally dividing the fluororesin film into a plurality of groups by the splitting machine;
(7) and (4) checking: then, detecting the cut fluororesin film by using the conventional detection device, judging whether the production of the fluororesin film meets the standard or not by observing the numerical value of the detection device, and then processing the fluororesin film which does not meet the standard again;
(8) packaging: and sticking the multilayer composite film which meets the relevant requirements and does not meet the relevant requirements after the inspection to a sample label, packaging the film which meets the relevant requirements, and entering a finished product raw material area.
2. The well-compatible fluororesin helium barrier film multilayer co-extrusion film process as claimed in claim 1, wherein: adopts a multi-layer co-extrusion process of special equipment and special raw materials to improve the compatibility of the fluororesin and other resins.
3. The well-compatible fluororesin helium barrier film multilayer co-extrusion film process as claimed in claim 1, wherein: extrusion waste gas G1(TRVOC, non-methane total hydrocarbon and ammonia) is generated in the extrusion process, is collected by a gas collecting hood above the multilayer film extruder, is purified by a set of UV light oxygen and activated carbon adsorption device and is discharged by 1 high exhaust funnel P1 with the height of 20 m.
4. The well-compatible fluororesin helium barrier film multilayer co-extrusion film process as claimed in claim 1, wherein: folding the cut film in half, and directly heat-sealing the folded double-layer film; when the heat sealing is carried out, no waste is generated.
5. The well-compatible fluororesin helium barrier film multilayer co-extrusion film process as claimed in claim 1, wherein: the multilayer coextruded film is prepared, and the fluororesin is positioned on the outermost layer in the multilayer structure, so that the abrasion resistance and the ultraviolet resistance of the fluororesin film are higher than those of other resins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110687780.1A CN113442476A (en) | 2021-06-21 | 2021-06-21 | Fluororesin helium barrier film multilayer co-extrusion film process with good compatibility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110687780.1A CN113442476A (en) | 2021-06-21 | 2021-06-21 | Fluororesin helium barrier film multilayer co-extrusion film process with good compatibility |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113442476A true CN113442476A (en) | 2021-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110687780.1A Withdrawn CN113442476A (en) | 2021-06-21 | 2021-06-21 | Fluororesin helium barrier film multilayer co-extrusion film process with good compatibility |
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| CN (1) | CN113442476A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102729463A (en) * | 2012-07-13 | 2012-10-17 | 南京棠城塑胶有限公司 | Preparation method of high-transparency nylon composite film |
| CN103601944A (en) * | 2013-10-14 | 2014-02-26 | 太湖华强科技有限公司 | Agricultural fluororesin film |
| CN104966799A (en) * | 2015-07-13 | 2015-10-07 | 苏州锂盾储能材料技术有限公司 | Multifunctional composite packaging barrier aluminum-plastic film for lithium battery |
| CN106590456A (en) * | 2016-11-24 | 2017-04-26 | 浙江歌瑞新材料有限公司 | Fluorine-containing functional weather-proofing film and preparation technology thereof |
| CN107603086A (en) * | 2017-08-04 | 2018-01-19 | 成都兆丰斯诺科技有限公司 | A kind of preparation method of macromolecule multiple field waterproofing membrane |
-
2021
- 2021-06-21 CN CN202110687780.1A patent/CN113442476A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102729463A (en) * | 2012-07-13 | 2012-10-17 | 南京棠城塑胶有限公司 | Preparation method of high-transparency nylon composite film |
| CN103601944A (en) * | 2013-10-14 | 2014-02-26 | 太湖华强科技有限公司 | Agricultural fluororesin film |
| CN104966799A (en) * | 2015-07-13 | 2015-10-07 | 苏州锂盾储能材料技术有限公司 | Multifunctional composite packaging barrier aluminum-plastic film for lithium battery |
| CN106590456A (en) * | 2016-11-24 | 2017-04-26 | 浙江歌瑞新材料有限公司 | Fluorine-containing functional weather-proofing film and preparation technology thereof |
| CN107603086A (en) * | 2017-08-04 | 2018-01-19 | 成都兆丰斯诺科技有限公司 | A kind of preparation method of macromolecule multiple field waterproofing membrane |
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Application publication date: 20210928 |
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