WO2012109999A1 - Processing method and related processing device for binding fluoroplastic to polyethylene terephthalate layer surface - Google Patents
Processing method and related processing device for binding fluoroplastic to polyethylene terephthalate layer surface Download PDFInfo
- Publication number
- WO2012109999A1 WO2012109999A1 PCT/CN2012/071248 CN2012071248W WO2012109999A1 WO 2012109999 A1 WO2012109999 A1 WO 2012109999A1 CN 2012071248 W CN2012071248 W CN 2012071248W WO 2012109999 A1 WO2012109999 A1 WO 2012109999A1
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- WO
- WIPO (PCT)
- Prior art keywords
- polyethylene terephthalate
- layer
- fluoroplastic
- terephthalate layer
- extruded
- Prior art date
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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
- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
- B29C43/28—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
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- 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
- B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
- B29C48/154—Coating solid articles, i.e. non-hollow articles
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- 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
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- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
- B32B27/322—Layered products comprising a layer of synthetic resin comprising polyolefins comprising halogenated polyolefins, e.g. PTFE
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- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
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- 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
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
- B32B37/153—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state at least one layer is extruded and immediately laminated while in semi-molten state
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- 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
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- 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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/49—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using two or more extruders to feed one die or nozzle
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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
- 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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- 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
- B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
- B29K2067/006—PBT, i.e. polybutylene terephthalate
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- 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
- B32B2327/00—Polyvinylhalogenides
- B32B2327/12—Polyvinylhalogenides containing fluorine
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- 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
- B32B2367/00—Polyesters, e.g. PET, i.e. polyethylene terephthalate
Definitions
- the invention relates to the technical field of plastic processing, in particular to the technical field of bonding between different plastic layers, in particular to a processing method and related processing equipment for bonding fluoroplastics to the surface of a polyethylene terephthalate layer. . Background technique
- Multi-layer coextrusion and cast coating are two common methods of producing plastic film.
- Multi-layer coextrusion technology has developed rapidly in recent years and has become one of the important production methods for food packaging and pharmaceutical packaging film.
- the common food packaging bags are basically multi-layer extrusion, such as three layers of co-extruded CPP film. It is formed into a film having a multi-layer structure by melting different plastics into the same mold and simultaneously being extruded, and the layers are bonded to each other. Due to the high production speed of the multi-layer extrusion technology and the high bonding strength between the layers of the film, the film produced by this technology is increasingly replacing the film originally produced by the composite technology.
- the composite technique is a method of producing a composite film by coating a glue between previously produced films and then laminating the films together. More and more composites between plastic films have been replaced by multi-layer coextrusion, which is still more used in the production of films such as paper-plastic composites, paper-aluminum composites, and aluminum-plastic composites. Cast coating is also a commonly used plastic production technique in which an extruder is used to melt a plastic and then extrude it onto a substrate. The more common substrates are aluminum sheets, non-woven fabrics, fiberglass cloths, and plastic films. However, there is no technique for combining multi-layer coextrusion and cast coating.
- Fluoroplastics have good weather resistance due to fluorine content, low surface energy, self-cleaning properties, and very difficult to bond. Most of the fluoroplastics can be processed by hot melt forming. Common fluoroplastics are polyvinylidene fluoride (PVDF), ethylene-tetrafluoroethylene copolymer (ETFE), ethylene-chlorotrifluoroethylene copolymer (ECTFE), and four. Fluoroethylene-hexafluoropropylene-vinylidene fluoride copolymer (THV) and the like.
- PVDF polyvinylidene fluoride
- ETFE ethylene-tetrafluoroethylene copolymer
- ECTFE ethylene-chlorotrifluoroethylene copolymer
- TSV Fluoroethylene-hexafluoropropylene-vinylidene fluoride copolymer
- the bonding of the fluoroplastic to the polyethylene terephthalate layer is typically carried out using a composite process using a polyurethane, acrylate or epoxy binder between the two layers of plastic.
- the binder typically contains a solvent or water to dilute the viscosity of the binder body.
- the composite film obtained by the composite process generally has a bond strength of less than 8 Newtons/cm.
- the binder used needs to be diluted with a large amount of solvent, so that a volatile solvent is required in the production process to make the production slow and pollute the environment.
- the object of the present invention is to overcome the above-mentioned shortcomings of the prior art, and to provide a processing method and related processing equipment for bonding a fluoroplastic to a surface of a polyethylene terephthalate layer, which bonds the fluoroplastic to Polyethylene terephthalate layer
- the surface processing method is ingeniously designed, the process is consolidated, the bonding strength is enhanced, and the solvent is not used, and the process of volatilizing the solvent is not required, thereby reducing the production cost and being environmentally friendly, and is suitable for large-scale popularization and application.
- a processing method for bonding a fluoroplastic to a surface of a polyethylene terephthalate layer characterized in that the fluoroplastic multilayer is The film was extruded and extruded onto the surface of the polyethylene terephthalate layer, and then the fluoroplastic and the polyethylene terephthalate layer (PET layer) were extrusion-shaped.
- the fluoroplastic is a multilayer plastic comprising a fluoroplastic layer, which is coextruded and extruded by a plurality of layers to the surface of the polyethylene terephthalate layer, and extruded. After casting to the surface of the polyethylene terephthalate layer, the fluoroplastic layer is located away from the outermost layer of the polyethylene terephthalate layer.
- the fluoroplastic is two to six layers of plastic, the outermost layer is a fluoroplastic layer, and the remaining layers have good compatibility with two adjacent layers, and the polyethylene terephthalate is bonded.
- the plastic of the ester layer has good compatibility with the polyethylene terephthalate layer.
- the fluoroplastic and the polyethylene terephthalate layer are subjected to the extrusion setting by at least two or more oppositely disposed shaping rolls.
- a processing apparatus for bonding a fluoroplastic to a surface of a polyethylene terephthalate layer characterized in that it comprises a polyethylene terephthalate layer feeding member a multi-layer co-extruded member and an extruded shaped member, the multi-layer co-extruded member being located downstream of the polyethylene terephthalate layer feed member and fed with the polyethylene terephthalate layer
- the component is configured to cast a plurality of layers of plastic extruded from the multi-layer coextruded component into a fluoroplastic layer to the polyethylene terephthalate layer feeding member.
- a surface of the ethylene glycolate layer, the extrusion shaped member being located downstream of the multilayer coextruded component for squeezing the multilayer plastic and the polyethylene terephthalate layer.
- the polyethylene terephthalate layer feeding member is a polyethylene terephthalate layer unwinding device.
- the multi-layer co-extruded component comprises an extrusion die and two to six extruders, each of which is connected to the extrusion die, the extrusion die and the polyterephthalic acid
- the glycolate layer feed member is cooperatively disposed such that the fluoroplastic extrusion member casts the extruded multilayer plastic to the surface of the polyethylene terephthalate layer through the extrusion die.
- the fluoroplastic is a multi-layer plastic comprising a fluoroplastic layer, the number of layers being two to six layers, after casting to the surface of the polyethylene terephthalate layer, the fluoroplastic layer is located Keep away from the outermost layer of the polyethylene terephthalate layer.
- the plastic adjacent to the polyethylene terephthalate layer is compatible with polyethylene terephthalate, and the remaining layers are compatible with the adjacent two layers.
- the extrusion-shaped member comprises at least two shaped rolls that are opposite in position.
- the processing device for bonding the fluoroplastic to the surface of the polyethylene terephthalate layer further comprises pretreatment a component, the pretreatment component being located between the polyethylene terephthalate layer feeding member and the fluoroplastic extrusion member for electrically charging the surface of the polyethylene terephthalate layer Halo, plasma, heat or flame pretreatment.
- the processing device for bonding the fluoroplastic to the surface of the polyethylene terephthalate layer further comprises a winding member, the winding member being located downstream of the extrusion shaping member, The multilayered plastic and polyethylene terephthalate layers that have been composited are collected.
- the method for bonding a fluoroplastic to a surface of a polyethylene terephthalate layer of the present invention is to coextrude and extrude the fluoroplastic multilayer to the polyethylene terephthalate
- the surface of the ester layer, and then the fluoroplastic and the polyethylene terephthalate layer are extruded and shaped, the concept is ingenious, the process is finished, the bonding strength is enhanced, the production cost is lowered, and the environment is very environmentally friendly. Suitable for large-scale promotion of applications.
- the processing apparatus for bonding a fluoroplastic to a surface of a polyethylene terephthalate layer of the present invention comprises a polyethylene terephthalate layer feeding member, a multilayer co-extruded member, and an extruded shaped member, whereby, the multilayered plastic extruded from the multi-layer co-extruded component is a fluoroplastic layer, and the poly-ethylene terephthalate is conveyed to the polyethylene terephthalate layer feeding member.
- the structure is clean, easy to operate, and can be assembled by using off-the-shelf components,
- the transformation cost is low and it is suitable for large-scale promotion and application.
- the processing apparatus of the present invention for bonding a fluoroplastic to a surface of a polyethylene terephthalate layer may further comprise a pretreatment component for extrusion casting to a polyethylene terephthalate in a fluoroplastic.
- the surface of the polyethylene terephthalate layer is subjected to corona, plasma, heating or flame pretreatment on the surface of the polyethylene glycol layer to increase its surface energy, which can further enhance the fluoroplastic and polyethylene terephthalate.
- the bond strength of the glycol ester layer is provided.
- the processing apparatus of the present invention for bonding a fluoroplastic to a surface of a polyethylene terephthalate layer may further comprise a winding member located at the end of the processing device for collection
- the multi-layer plastic and polyethylene terephthalate layer have been compounded to facilitate operation and increase production efficiency.
- Fig. 1 is a front elevational view showing a specific embodiment of a processing apparatus for bonding a fluoroplastic to a surface of a polyethylene terephthalate layer of the present invention. detailed description
- the present invention first provides a method for bonding a fluoroplastic to a surface of a polyethylene terephthalate layer. a processing method, which coextrudes and extrudes the fluoroplastic 1 to the surface of the polyethylene terephthalate layer 2 (PET layer), and then the fluoroplastic 1 and the poly The ethylene terephthalate layer 2 is extruded and shaped.
- a processing method which coextrudes and extrudes the fluoroplastic 1 to the surface of the polyethylene terephthalate layer 2 (PET layer), and then the fluoroplastic 1 and the poly
- PET layer polyethylene terephthalate layer
- Fluoroplastics 1 can be any heat processable fluoroplastic or a mixture of fluoroplastics or fluoroplastics and other plastics.
- the fluoroplastic 1 is a multilayer plastic comprising a fluoroplastic layer, which is coextruded by multiple layers and extruded onto the surface of the polyethylene terephthalate layer 2, After extrusion casting onto the surface of the polyethylene terephthalate layer, the fluoroplastic layer is located away from the outermost layer of the polyethylene terephthalate layer 2.
- the number of layers of the multilayer plastic may be any, preferably 2-6 layers, and the plastic adjacent to the polyethylene terephthalate layer 2 is compatible with the polyethylene terephthalate layer.
- the plastic adjacent to the fluoroplastic layer is compatible with the fluoroplastic layer, and the remaining layers of plastic are compatible with the adjacent layers.
- the fluoroplastic 1 is coextruded and extruded, and then coated on the surface of the polyethylene terephthalate layer 2 to effect extrusion casting to the polyethylene terephthalate.
- the processing device for bonding a fluoroplastic to a surface of a polyethylene terephthalate layer comprises a polyethylene terephthalate layer feeding member 4 and a multilayer coextrusion. a member 5 and an extrusion-shaped member 6, the fluoroplastic extrusion member 5 being located downstream of the polyethylene terephthalate layer feeding member 4 and fed with the polyethylene terephthalate layer
- the component 4 is cooperatively provided for casting the fluoroplastic 1 extruded by the multilayer coextruded component 5 to the polyethylene terephthalate delivered by the polyethylene terephthalate layer feeding member 4.
- the extrusion-shaped member 6 is located downstream of the fluoroplastic extrusion member 5 for pressing and shaping the fluoroplastic 1 and the polyethylene terephthalate layer 2.
- Extrusion shaping can be achieved by any suitable means.
- the fluoroplastic 1 and the polyethylene terephthalate layer 2 are subjected to the extrusion setting by at least two shaped rolls 61, 62 disposed at opposite positions, and the shaping roll may be metal. Roll or rubber roller.
- the fluoroplastic 1 and the polyethylene terephthalate layer 2 are passed through two oppositely disposed shaping rolls 61, 62, and two The mutually squeezing shaped rolls 61 and 62 are pressed and shaped to form a multilayer composite film or sheet 3, and after repeated reshaping or cooling, the formed multilayer composite film or sheet 3 can be wound or sliced. machining.
- the polyethylene terephthalate layer feed member 4 can be coated with any suitable member.
- the polyethylene terephthalate layer feeding member 4 is a polyethylene terephthalate layer unwinding device. To control the unwinding of the polyethylene terephthalate layer 2. It is passed gently below the outlet of the extrusion die 51 described below.
- the fluoroplastic extrusion component 5 can be coated with any suitable component.
- the fluoroplastic extrusion member 5 comprises an extrusion die 51 and a plurality of extruders 52, each of which is connected to the extrusion die 51, the extrusion die a 51 with the polyethylene terephthalate layer feeding member 4 so that the fluoroplastic extrusion member 5 casts the extruded fluoroplastic 1 to the polymerization through the extrusion die 51 The surface of the ethylene terephthalate layer 2.
- the number of extruders 52 may be any, for example, 2-6, and different molten plastics enter the extrusion die 51 through the dispenser or directly into the extrusion die 51 having a plurality of cavities, thereby extruding 2-6 layers. Multi-layer plastic. Referring to Figure 1, in a particular embodiment of the invention, the number of extruders 52 is two.
- the processing device for bonding the fluoroplastic to the surface of the polyethylene terephthalate layer Also included is a pretreatment component (not shown) located between the polyethylene terephthalate layer feed component 4 and the fluoroplastic extrusion component 5 for the pairing
- the surface of the ethylene phthalate layer 2 is subjected to corona, plasma, heating or flame pretreatment.
- the pretreatment component can be, for example, a corona machine, a plasma machine, an oven, a flame processor.
- the processing device for bonding the fluoroplastic to the surface of the polyethylene terephthalate layer further includes a winding member (not shown), and the winding member is located at the processing device At the end, a film or sheet 3 for collecting the fluoroplastic 1 and polyethylene terephthalate layer 2 which has been compounded is used.
- the winding member can be, for example, a winder.
- the device consists of the following components arranged in order:
- Polyethylene terephthalate layer unwinding device controlling constant speed unwinding, speed from 5 meters to 100 meters / minute;
- Two extruders 52 are placed at an angular interval of 60 degrees from the unwinding direction of the polyethylene terephthalate layer 2;
- Two extruders 52 are connected to the distributor through a connecting rod, and the dispenser is connected to the extrusion die 51.
- the extrusion die 51 is located directly above the polyethylene terephthalate layer 2, and the extruded film is a multilayer plastic.
- the total thickness of 1 is 10 filaments;
- Two sets of fixed rolls 61 and 62 both of which are metal rolls, each having a diameter of 250 mm.
- the setting roller 62 is at a height of 60 degrees of the setting roller 61, as shown in Fig. 1;
- Winding machine Winding speed from 5 meters to 100 meters / minute.
- Polyethylene terephthalate layer unwinding device controlling constant speed unwinding, speed of 20 meters to 200 meters / minute;
- oven heating temperature is room temperature to 250 degrees Celsius;
- Three extruders 52 having a screw diameter of 75 mm and three extruders 52 placed at an angle of 45 degrees.
- the materials extruded by the three extruders 52 are fluoroplastic layer/mixture layer of fluoroplastic and acrylate resin/adhesive resin layer, fluoroplastic layer extruder head temperature is 240 degrees, fluoroplastic and sticky The temperature of the extruder layer of the resin mixture is 220 degrees, and the temperature of the adhesive resin layer extruder head is 200 degrees;
- Three extruders 52 are directly connected to an extrusion die 51 having a multi-cavity cavity, and the extrusion die 51 is located directly above the polyethylene terephthalate layer 2, and the extruded film is the total of the multilayer plastic 1 1 wire thickness;
- the metal roll has a diameter of 300 mm and the rubber roll has a diameter of 250 mm.
- the rubber roller is 15 degrees higher than the metal roller;
- a post-processing component such as a corona processor
- Winding machine Winding speed from 20 meters to 200 meters / minute.
- the peel strength between the fluoroplastic 1 and the polyethylene terephthalate layer 2 was measured to be 20 N/cm.
- This embodiment adds a post-processing component-corona machine which can be constructed in the same manner as the pre-treatment component to increase the surface energy of the composite product for further use.
- Polyethylene terephthalate layer unwinding device controlling constant speed unwinding, unwinding speed 10 to 300 meters;
- Flame treatment machine
- the materials extruded by the six extruders 52 are respectively a fluoroplastic layer/adhesive resin layer/nylon layer/adhesive resin layer/EVOH layer/adhesive resin layer;
- the extrusion die 51 is located directly above the polyethylene terephthalate layer 2, and the extruded film is the total of the multilayer plastic 1 5 wires in thickness;
- Two setting rolls 61 and 62, a metal roll and a rubber roll The metal roll has a diameter of 300 mm and the rubber roll has a diameter of 150 mm.
- the rubber roller is 60 degrees higher than the metal roller;
- Winding machine Winding speed from 10 meters to 300 meters.
- the processing method of the present invention for bonding a fluoroplastic to a surface of a polyethylene terephthalate layer simultaneously comprises a multilayer coextrusion and extrusion coating process by extruding the fluoroplastic to the Polyethylene terephthalate layer surface, of course Thereafter, the fluoroplastic and the polyethylene terephthalate layer (PET layer) are extrusion-shaped, thereby bonding the fluoroplastic to the surface of the polyethylene terephthalate layer, and the concept is unique and formed.
- the product has a high bond strength.
- the processing method for bonding the fluoroplastic to the surface of the polyethylene terephthalate layer of the present invention is ingeniously designed, the process is consolidated, the bonding strength is enhanced, and the solvent is not required to be evaporated.
- the process so the production cost is reduced, the production speed is increased, and it is very environmentally friendly, which is suitable for large-scale promotion and application.
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Abstract
The present invention relates to a processing method for binding fluoroplastic to a polyethylene terephthalate layer surface. Fluoroplastic is extruded and cast onto a polyethylene terephthalate layer surface. Both are pressed into a fixed shape. The fluoroplastic is a multilayer plastic comprising a fluoroplastic layer. The multilayer plastic is extruded and cast onto the polyethylene terephthalate layer surface by means of multilayer coextrusion. The fluoroplastic layer of the multilayer plastic is the external layer farthest from the polyethylene terephthalate layer. Each other layer is compatible with its own two neighboring layers. The plastic bound to the polyethylene terephthalate layer is highly compatible with the polyethylene terephthalate layer. The fluoroplastic is extruded and cast-coated onto the polyethylene terephthalate layer surface. The fluoroplastic and the polyethylene terephthalate layer are pressed into a fixed shape by at least two oppositely arranged shaping rolls. The present invention is smart in design, and simplifies the process, enhances binding strength, and lowers production costs. The present invention is environmentally friendly and suited for large-scale application.
Description
将氟塑料粘结至聚对苯二曱酸乙二醇酯层表面的加工方法和相关加工设备 技术领域 Processing method and related processing equipment for bonding fluoroplastics to the surface of polyethylene terephthalate layer
本发明涉及塑料加工技术领域, 特别涉及不同塑料层之间粘结的技术领域, 具体是指一 种将氟塑料粘结至聚对苯二甲酸乙二醇酯层表面的加工方法和相关加工设备。 背景技术 The invention relates to the technical field of plastic processing, in particular to the technical field of bonding between different plastic layers, in particular to a processing method and related processing equipment for bonding fluoroplastics to the surface of a polyethylene terephthalate layer. . Background technique
多层共挤和流延涂布是两种常用的塑料薄膜生产方法。 多层共挤技术近年来发展迅速, 成为食品包装、 药品包装薄膜的重要生产方式之一。 目前常见的食品包装袋基本是多层挤出, 如三层共挤得 CPP膜。 其通过将不同的塑料熔化后进入同一个模具并同时被挤出而成为有多 层结构的薄膜, 各层间相互粘连在一起。 由于多层挤出的技术生产速度快, 薄膜各层间粘结 强度高, 使用此技术生产的薄膜正越来越多的替代原来使用复合技术生产的薄膜。 复合技术 是在已经事先生产好的薄膜间涂布胶水, 然后将薄膜复合在一起的一种生产复合膜的方法。 塑料膜之间的复合越来越多的被多层共挤所取代, 其仍然较多的用于纸塑复合、 纸铝复合、 铝塑复合等薄膜的生产中。 流延涂布也是一种常用的塑料生产技术, 其用挤出机将塑料熔融 后挤出淋涂在基材上。 较常见的基材有铝板、 无纺布、 玻璃纤维布以及塑料膜。 但未见将多 层共挤和流延涂布相结合在一起使用的技术。 Multi-layer coextrusion and cast coating are two common methods of producing plastic film. Multi-layer coextrusion technology has developed rapidly in recent years and has become one of the important production methods for food packaging and pharmaceutical packaging film. At present, the common food packaging bags are basically multi-layer extrusion, such as three layers of co-extruded CPP film. It is formed into a film having a multi-layer structure by melting different plastics into the same mold and simultaneously being extruded, and the layers are bonded to each other. Due to the high production speed of the multi-layer extrusion technology and the high bonding strength between the layers of the film, the film produced by this technology is increasingly replacing the film originally produced by the composite technology. The composite technique is a method of producing a composite film by coating a glue between previously produced films and then laminating the films together. More and more composites between plastic films have been replaced by multi-layer coextrusion, which is still more used in the production of films such as paper-plastic composites, paper-aluminum composites, and aluminum-plastic composites. Cast coating is also a commonly used plastic production technique in which an extruder is used to melt a plastic and then extrude it onto a substrate. The more common substrates are aluminum sheets, non-woven fabrics, fiberglass cloths, and plastic films. However, there is no technique for combining multi-layer coextrusion and cast coating.
氟塑料由于含氟, 所以有很好的耐候性, 表面能低, 有自清洁性, 非常不容易粘结。 氟 塑料大部分可以使用加热熔融成形的办法加工, 常见的氟塑料有聚偏氟乙烯(PVDF )、 乙烯- 四氟乙烯共聚物(ETFE )、 乙烯 -三氟氯乙烯共聚物(ECTFE )、 四氟乙烯-六氟丙烯-偏氟乙烯 共聚物 ( THV )等。 Fluoroplastics have good weather resistance due to fluorine content, low surface energy, self-cleaning properties, and very difficult to bond. Most of the fluoroplastics can be processed by hot melt forming. Common fluoroplastics are polyvinylidene fluoride (PVDF), ethylene-tetrafluoroethylene copolymer (ETFE), ethylene-chlorotrifluoroethylene copolymer (ECTFE), and four. Fluoroethylene-hexafluoropropylene-vinylidene fluoride copolymer (THV) and the like.
氟塑料与聚对苯二甲酸乙二醇酯层的粘结通常使用复合工艺,在两层塑料间使用聚氨酯、 丙烯酸酯或环氧树脂粘结剂。 粘结剂通常含有溶剂或水以稀释粘结剂本体的粘度。 釆用复合 工艺得到的复合膜粘结强度一般小于 8牛顿 /厘米。 而且所使用的粘结剂需要用大量的溶剂 稀释, 所以生产过程中需要挥发溶剂而使生产速度慢并且污染环境。 The bonding of the fluoroplastic to the polyethylene terephthalate layer is typically carried out using a composite process using a polyurethane, acrylate or epoxy binder between the two layers of plastic. The binder typically contains a solvent or water to dilute the viscosity of the binder body. The composite film obtained by the composite process generally has a bond strength of less than 8 Newtons/cm. Moreover, the binder used needs to be diluted with a large amount of solvent, so that a volatile solvent is required in the production process to make the production slow and pollute the environment.
因此, 需要提供一种将氟塑料粘结至聚对苯二甲酸乙二醇酯层表面的加工方法, 从而筒 化工艺、 增强粘结强度、 降低生产成本且环保。 发明内容 Therefore, there is a need to provide a processing method for bonding a fluoroplastic to a surface of a polyethylene terephthalate layer, thereby encapsulating the process, enhancing the bonding strength, reducing the production cost, and being environmentally friendly. Summary of the invention
本发明的目的是克服了上述现有技术中的缺点, 提供一种将氟塑料粘结至聚对苯二甲酸 乙二醇酯层表面的加工方法和相关加工设备, 该将氟塑料粘结至聚对苯二甲酸乙二醇酯层表
面的加工方法构思巧妙, 筒化了工艺、 增强了粘结强度, 且不使用溶剂, 也不需要挥发溶剂 的过程, 因而降低了生产成本, 并非常环保, 适于大规模推广应用。 SUMMARY OF THE INVENTION The object of the present invention is to overcome the above-mentioned shortcomings of the prior art, and to provide a processing method and related processing equipment for bonding a fluoroplastic to a surface of a polyethylene terephthalate layer, which bonds the fluoroplastic to Polyethylene terephthalate layer The surface processing method is ingeniously designed, the process is consolidated, the bonding strength is enhanced, and the solvent is not used, and the process of volatilizing the solvent is not required, thereby reducing the production cost and being environmentally friendly, and is suitable for large-scale popularization and application.
为了实现上述目的, 在本发明的第一方面, 提供了一种将氟塑料粘结至聚对苯二甲酸乙 二醇酯层表面的加工方法, 其特点是, 将所述氟塑料多层共挤并挤出流延至所述聚对苯二甲 酸乙二醇酯层表面, 然后将所述氟塑料和所述聚对苯二甲酸乙二醇酯层( PET层)挤压定形。 In order to achieve the above object, in a first aspect of the invention, there is provided a processing method for bonding a fluoroplastic to a surface of a polyethylene terephthalate layer, characterized in that the fluoroplastic multilayer is The film was extruded and extruded onto the surface of the polyethylene terephthalate layer, and then the fluoroplastic and the polyethylene terephthalate layer (PET layer) were extrusion-shaped.
较佳地, 所述氟塑料为包括氟塑料层的多层塑料, 所述多层塑料通过多层共挤并挤出流 延至所述聚对苯二甲酸乙二醇酯层表面,在挤出流延至所述聚对苯二甲酸乙二醇酯层表面后, 所述氟塑料层位于远离所述聚对苯二甲酸乙二醇酯层的最外层。 Preferably, the fluoroplastic is a multilayer plastic comprising a fluoroplastic layer, which is coextruded and extruded by a plurality of layers to the surface of the polyethylene terephthalate layer, and extruded. After casting to the surface of the polyethylene terephthalate layer, the fluoroplastic layer is located away from the outermost layer of the polyethylene terephthalate layer.
较佳地, 所述氟塑料为两至六层塑料, 最外层为氟塑料层, 其余各层与相邻两层有良好 的相容性, 粘接所述聚对苯二甲酸乙二醇酯层的塑料与聚对苯二甲酸乙二醇酯层有良好的相 容性。 Preferably, the fluoroplastic is two to six layers of plastic, the outermost layer is a fluoroplastic layer, and the remaining layers have good compatibility with two adjacent layers, and the polyethylene terephthalate is bonded. The plastic of the ester layer has good compatibility with the polyethylene terephthalate layer.
较佳地, 将所述氟塑料和所述聚对苯二甲酸乙二醇酯层通过至少两个以上相对设置的定 形辊实现所述挤压定形。 Preferably, the fluoroplastic and the polyethylene terephthalate layer are subjected to the extrusion setting by at least two or more oppositely disposed shaping rolls.
在本发明的第二方面, 提供了一种将氟塑料粘结至聚对苯二甲酸乙二醇酯层表面的加工 装置, 其特点是, 包括聚对苯二甲酸乙二醇酯层送料部件、 多层共挤部件和挤压定形部件, 所述多层共挤部件位于所述聚对苯二甲酸乙二醇酯层送料部件下游并与所述聚对苯二甲酸乙 二醇酯层送料部件配合设置用于将由所述多层共挤部件挤出的最外层为氟塑料层的多层塑料 流延至所述聚对苯二甲酸乙二醇酯层送料部件输送出的聚对苯二甲酸乙二醇酯层表面, 所述 挤压定形部件位于所述多层共挤部件下游用于将所述多层塑料和所述聚对苯二甲酸乙二醇酯 层挤压定形。 In a second aspect of the invention, there is provided a processing apparatus for bonding a fluoroplastic to a surface of a polyethylene terephthalate layer, characterized in that it comprises a polyethylene terephthalate layer feeding member a multi-layer co-extruded member and an extruded shaped member, the multi-layer co-extruded member being located downstream of the polyethylene terephthalate layer feed member and fed with the polyethylene terephthalate layer The component is configured to cast a plurality of layers of plastic extruded from the multi-layer coextruded component into a fluoroplastic layer to the polyethylene terephthalate layer feeding member. A surface of the ethylene glycolate layer, the extrusion shaped member being located downstream of the multilayer coextruded component for squeezing the multilayer plastic and the polyethylene terephthalate layer.
较佳地, 所述聚对苯二甲酸乙二醇酯层送料部件是聚对苯二甲酸乙二醇酯层放卷装置。 较佳地, 所述多层共挤部件包括挤出模具和两至六台挤出机, 所述挤出机均连接所述挤 出模具, 所述挤出模具与所述聚对苯二甲酸乙二醇酯层送料部件配合设置从而所述氟塑料挤 出部件通过所述挤出模具将挤出的所述多层塑料流延至所述聚对苯二甲酸乙二醇酯层表面。 Preferably, the polyethylene terephthalate layer feeding member is a polyethylene terephthalate layer unwinding device. Preferably, the multi-layer co-extruded component comprises an extrusion die and two to six extruders, each of which is connected to the extrusion die, the extrusion die and the polyterephthalic acid The glycolate layer feed member is cooperatively disposed such that the fluoroplastic extrusion member casts the extruded multilayer plastic to the surface of the polyethylene terephthalate layer through the extrusion die.
更佳地, 所述氟塑料为包括氟塑料层的多层塑料, 层数在二到六层, 在流延至所述聚对 苯二甲酸乙二醇酯层表面后,所述氟塑料层位于远离所述聚对苯二甲酸乙二醇酯层的最外层。 与聚对苯二甲酸乙二醇酯层相邻的塑料与聚对苯二甲酸乙二醇酯有相容性, 其余各层与相邻 两层有相容性。 More preferably, the fluoroplastic is a multi-layer plastic comprising a fluoroplastic layer, the number of layers being two to six layers, after casting to the surface of the polyethylene terephthalate layer, the fluoroplastic layer is located Keep away from the outermost layer of the polyethylene terephthalate layer. The plastic adjacent to the polyethylene terephthalate layer is compatible with polyethylene terephthalate, and the remaining layers are compatible with the adjacent two layers.
较佳地, 所述挤压定形部件包括至少两个以上位置相对的定形辊。 Preferably, the extrusion-shaped member comprises at least two shaped rolls that are opposite in position.
较佳地, 所述的将氟塑料粘结至聚对苯二甲酸乙二醇酯层表面的加工装置还包括预处理
部件, 所述预处理部件位于所述聚对苯二甲酸乙二醇酯层送料部件和所述氟塑料挤出部件之 间用于对所述聚对苯二甲酸乙二醇酯层表面进行电暈、 等离子、 加热或火焰预处理。 Preferably, the processing device for bonding the fluoroplastic to the surface of the polyethylene terephthalate layer further comprises pretreatment a component, the pretreatment component being located between the polyethylene terephthalate layer feeding member and the fluoroplastic extrusion member for electrically charging the surface of the polyethylene terephthalate layer Halo, plasma, heat or flame pretreatment.
较佳地, 所述的将氟塑料粘结至聚对苯二甲酸乙二醇酯层表面的加工装置还包括收卷部 件, 所述收卷部件位于所述挤压定形部件的下游, 用于收集已经复合好的多层塑料和聚对苯 二甲酸乙二醇酯层。 Preferably, the processing device for bonding the fluoroplastic to the surface of the polyethylene terephthalate layer further comprises a winding member, the winding member being located downstream of the extrusion shaping member, The multilayered plastic and polyethylene terephthalate layers that have been composited are collected.
本发明的有益效果具体如下: The beneficial effects of the present invention are specifically as follows:
1. 本发明的将氟塑料粘结至聚对苯二甲酸乙二醇酯层表面的加工方法是将所述氟塑料 多层共挤并挤出流延至所述聚对苯二甲酸乙二醇酯层表面, 然后将所述氟塑料和所 述聚对苯二甲酸乙二醇酯层挤压定形, 构思巧妙, 筒化了工艺、 增强了粘结强度、 降低了生产成本, 且非常环保, 适于大规模推广应用。 1. The method for bonding a fluoroplastic to a surface of a polyethylene terephthalate layer of the present invention is to coextrude and extrude the fluoroplastic multilayer to the polyethylene terephthalate The surface of the ester layer, and then the fluoroplastic and the polyethylene terephthalate layer are extruded and shaped, the concept is ingenious, the process is finished, the bonding strength is enhanced, the production cost is lowered, and the environment is very environmentally friendly. Suitable for large-scale promotion of applications.
2. 本发明的将氟塑料粘结至聚对苯二甲酸乙二醇酯层表面的加工装置包括聚对苯二甲 酸乙二醇酯层送料部件、 多层共挤部件和挤压定形部件, 从而所述多层共挤部件挤 出的最外层为氟塑料层的多层塑料流延至所述聚对苯二甲酸乙二醇酯层送料部件输 送出的聚对苯二甲酸乙二醇酯层表面, 再由所述挤压定形部件将所述多层塑料和所 述聚对苯二甲酸乙二醇酯层挤压定形, 结构筒洁, 易操作, 可利用现成部件组装即 可, 设备改造成本低, 适于大规模推广应用。 2. The processing apparatus for bonding a fluoroplastic to a surface of a polyethylene terephthalate layer of the present invention comprises a polyethylene terephthalate layer feeding member, a multilayer co-extruded member, and an extruded shaped member, Thereby, the multilayered plastic extruded from the multi-layer co-extruded component is a fluoroplastic layer, and the poly-ethylene terephthalate is conveyed to the polyethylene terephthalate layer feeding member. a layer surface, and the multi-layer plastic and the polyethylene terephthalate layer are pressed and shaped by the extrusion-shaped member, the structure is clean, easy to operate, and can be assembled by using off-the-shelf components, The transformation cost is low and it is suitable for large-scale promotion and application.
3. 本发明的将氟塑料粘结至聚对苯二甲酸乙二醇酯层表面的加工装置还可以包括预处 理部件, 预处理部件用于在氟塑料挤出流延至聚对苯二甲酸乙二醇酯层表面之前对 所述聚对苯二甲酸乙二醇酯层表面进行电暈、 等离子、 加热或火焰预处理, 从而增 加其表面能, 可以进一步增强氟塑料和聚对苯二甲酸乙二醇酯层的粘结强度。 3. The processing apparatus of the present invention for bonding a fluoroplastic to a surface of a polyethylene terephthalate layer may further comprise a pretreatment component for extrusion casting to a polyethylene terephthalate in a fluoroplastic. The surface of the polyethylene terephthalate layer is subjected to corona, plasma, heating or flame pretreatment on the surface of the polyethylene glycol layer to increase its surface energy, which can further enhance the fluoroplastic and polyethylene terephthalate. The bond strength of the glycol ester layer.
4. 本发明的将氟塑料粘结至聚对苯二甲酸乙二醇酯层表面的加工装置还可以包括收卷 部件, 所述收卷部件位于所述加工装置的最末处, 用于收集已经复合好的多层塑料 和聚对苯二甲酸乙二醇酯层, 从而便于操作, 提高生产效率。 附图说明 图 1是本发明的将氟塑料粘结至聚对苯二甲酸乙二醇酯层表面的加工装置的一具体实施 例的主视示意图。 具体实施方式 4. The processing apparatus of the present invention for bonding a fluoroplastic to a surface of a polyethylene terephthalate layer may further comprise a winding member located at the end of the processing device for collection The multi-layer plastic and polyethylene terephthalate layer have been compounded to facilitate operation and increase production efficiency. Brief Description of the Drawings Fig. 1 is a front elevational view showing a specific embodiment of a processing apparatus for bonding a fluoroplastic to a surface of a polyethylene terephthalate layer of the present invention. detailed description
为了能够更清楚地理解本发明的技术内容, 特举以下实施例详细说明。 In order to more clearly understand the technical content of the present invention, the following embodiments are specifically described.
请参见图 1所示, 本发明首先提供了一种将氟塑料粘结至聚对苯二甲酸乙二醇酯层表面
的加工方法, 其将所述氟塑料 1多层共挤并挤出流延至所述聚对苯二甲酸乙二醇酯层 2 ( PET 层)表面, 然后将所述氟塑料 1和所述聚对苯二甲酸乙二醇酯层 2挤压定形。 Referring to FIG. 1, the present invention first provides a method for bonding a fluoroplastic to a surface of a polyethylene terephthalate layer. a processing method, which coextrudes and extrudes the fluoroplastic 1 to the surface of the polyethylene terephthalate layer 2 (PET layer), and then the fluoroplastic 1 and the poly The ethylene terephthalate layer 2 is extruded and shaped.
氟塑料 1可以是任何可热加工的氟塑料,也可以是各种氟塑料之间或氟塑料和其它 塑料的混合物。 较佳地, 所述氟塑料 1为包括氟塑料层的多层塑料, 所述多层塑料通过多层 共挤并挤出流延至所述聚对苯二甲酸乙二醇酯层 2表面, 在挤出流延至所述聚对苯二甲酸乙 二醇酯层表面后, 所述氟塑料层位于远离所述聚对苯二甲酸乙二醇酯层 2的最外层。 多层塑 料的层数可以是任意的, 较佳地为 2-6层, 与聚对苯二甲酸乙二醇酯层 2相邻的塑料与聚对 苯二甲酸乙二醇酯层有相容性, 与氟塑料层相邻的塑料与氟塑料层有相容性, 其余各层塑料 均和相邻层有相容性。 Fluoroplastics 1 can be any heat processable fluoroplastic or a mixture of fluoroplastics or fluoroplastics and other plastics. Preferably, the fluoroplastic 1 is a multilayer plastic comprising a fluoroplastic layer, which is coextruded by multiple layers and extruded onto the surface of the polyethylene terephthalate layer 2, After extrusion casting onto the surface of the polyethylene terephthalate layer, the fluoroplastic layer is located away from the outermost layer of the polyethylene terephthalate layer 2. The number of layers of the multilayer plastic may be any, preferably 2-6 layers, and the plastic adjacent to the polyethylene terephthalate layer 2 is compatible with the polyethylene terephthalate layer. The plastic adjacent to the fluoroplastic layer is compatible with the fluoroplastic layer, and the remaining layers of plastic are compatible with the adjacent layers.
较佳地, 所述氟塑料 1多层共挤并挤出后涂布在所述聚对苯二甲酸乙二醇酯层 2表面上 从而实现挤出流延至所述聚对苯二甲酸乙二醇酯层 2表面。 Preferably, the fluoroplastic 1 is coextruded and extruded, and then coated on the surface of the polyethylene terephthalate layer 2 to effect extrusion casting to the polyethylene terephthalate. The surface of the alcohol ester layer 2.
请参见图 1所示, 本发明提供的将氟塑料粘结至聚对苯二甲酸乙二醇酯层表面的加工装 置包括聚对苯二甲酸乙二醇酯层送料部件 4、 多层共挤部件 5和挤压定形部件 6, 所述氟塑料 挤出部件 5位于所述聚对苯二甲酸乙二醇酯层送料部件 4下游, 并与所述聚对苯二甲酸乙二 醇酯层送料部件 4配合设置用于将由所述多层共挤部件 5挤出的氟塑料 1流延至所述聚对苯 二甲酸乙二醇酯层送料部件 4输送出的聚对苯二甲酸乙二醇酯层 2表面, 所述挤压定形部件 6位于所述氟塑料挤出部件 5下游, 用于将所述氟塑料 1和所述聚对苯二甲酸乙二醇酯层 2 挤压定形。 Referring to FIG. 1 , the processing device for bonding a fluoroplastic to a surface of a polyethylene terephthalate layer provided by the present invention comprises a polyethylene terephthalate layer feeding member 4 and a multilayer coextrusion. a member 5 and an extrusion-shaped member 6, the fluoroplastic extrusion member 5 being located downstream of the polyethylene terephthalate layer feeding member 4 and fed with the polyethylene terephthalate layer The component 4 is cooperatively provided for casting the fluoroplastic 1 extruded by the multilayer coextruded component 5 to the polyethylene terephthalate delivered by the polyethylene terephthalate layer feeding member 4. On the surface of the layer 2, the extrusion-shaped member 6 is located downstream of the fluoroplastic extrusion member 5 for pressing and shaping the fluoroplastic 1 and the polyethylene terephthalate layer 2.
挤压定形可以通过任何合适的方式实现。 较佳地, 将所述氟塑料 1和所述聚对苯二甲酸 乙二醇酯层 2通过至少两个以上位置相对设置的定形辊 61、 62实现所述挤压定形, 定形辊可 以是金属辊或橡胶辊。 请参见图 1所示, 在本发明的具体实施例中, 将所述氟塑料 1和所述 聚对苯二甲酸乙二醇酯层 2通过两个相对设置的定形辊 61、 62, 经过两个相互挤压的定形 辊 61和 62之间挤压定形, 形成多层复合膜或片材 3 , 经过适当的再次定形或冷却, 形 成的多层复合膜或片材 3即可收卷或切片加工。 Extrusion shaping can be achieved by any suitable means. Preferably, the fluoroplastic 1 and the polyethylene terephthalate layer 2 are subjected to the extrusion setting by at least two shaped rolls 61, 62 disposed at opposite positions, and the shaping roll may be metal. Roll or rubber roller. Referring to FIG. 1, in a specific embodiment of the present invention, the fluoroplastic 1 and the polyethylene terephthalate layer 2 are passed through two oppositely disposed shaping rolls 61, 62, and two The mutually squeezing shaped rolls 61 and 62 are pressed and shaped to form a multilayer composite film or sheet 3, and after repeated reshaping or cooling, the formed multilayer composite film or sheet 3 can be wound or sliced. machining.
所述聚对苯二甲酸乙二醇酯层送料部件 4可以釆用任何合适的部件。 请参见图 1所示, 在本发明的具体实施例中, 所述聚对苯二甲酸乙二醇酯层送料部件 4是聚对苯二甲酸乙二醇 酯层放卷装置。 以控制聚对苯二甲酸乙二醇酯层 2的放卷。 使其平緩的通过下述的挤出模 具 51的出口的下方。 The polyethylene terephthalate layer feed member 4 can be coated with any suitable member. Referring to Fig. 1, in a specific embodiment of the present invention, the polyethylene terephthalate layer feeding member 4 is a polyethylene terephthalate layer unwinding device. To control the unwinding of the polyethylene terephthalate layer 2. It is passed gently below the outlet of the extrusion die 51 described below.
所述氟塑料挤出部件 5可以釆用任何合适的部件。 较佳地, 所述氟塑料挤出部件 5包括 挤出模具 51和多台挤出机 52 , 所述的多台挤出机 52均连接到所述挤出模具 51 , 所述挤出模
具 51与所述聚对苯二甲酸乙二醇酯层送料部件 4配合设置从而所述氟塑料挤出部件 5通过所 述挤出模具 51将挤出的所述氟塑料 1流延至所述聚对苯二甲酸乙二醇酯层 2表面。 挤出机 52的台数可以任意, 例如 2-6台, 熔融的不同塑料通过分配器进入挤出模具 51中或者直 接进入具有多个模腔的挤出模具 51中, 从而挤出 2-6层的多层塑料。 请参见图 1所示, 在 本发明的具体实施例中, 挤出机 52的台数为两台。 The fluoroplastic extrusion component 5 can be coated with any suitable component. Preferably, the fluoroplastic extrusion member 5 comprises an extrusion die 51 and a plurality of extruders 52, each of which is connected to the extrusion die 51, the extrusion die a 51 with the polyethylene terephthalate layer feeding member 4 so that the fluoroplastic extrusion member 5 casts the extruded fluoroplastic 1 to the polymerization through the extrusion die 51 The surface of the ethylene terephthalate layer 2. The number of extruders 52 may be any, for example, 2-6, and different molten plastics enter the extrusion die 51 through the dispenser or directly into the extrusion die 51 having a plurality of cavities, thereby extruding 2-6 layers. Multi-layer plastic. Referring to Figure 1, in a particular embodiment of the invention, the number of extruders 52 is two.
为提高多层塑料和聚对苯二甲酸乙二醇酯层 2表面的粘结力, 较佳地, 所述的将氟塑 料粘结至聚对苯二甲酸乙二醇酯层表面的加工装置还包括预处理部件(未示出), 所述预处理 部件位于所述聚对苯二甲酸乙二醇酯层送料部件 4和所述氟塑料挤出部件 5之间用于对所述 聚对苯二甲酸乙二醇酯层 2表面进行电暈、 等离子、 加热或火焰预处理。 预处理部件例如可 以是电暈机、 等离子机、 烘箱、 火焰处理机。 In order to improve the adhesion of the surface of the multilayer plastic and the polyethylene terephthalate layer 2, preferably, the processing device for bonding the fluoroplastic to the surface of the polyethylene terephthalate layer Also included is a pretreatment component (not shown) located between the polyethylene terephthalate layer feed component 4 and the fluoroplastic extrusion component 5 for the pairing The surface of the ethylene phthalate layer 2 is subjected to corona, plasma, heating or flame pretreatment. The pretreatment component can be, for example, a corona machine, a plasma machine, an oven, a flame processor.
为方便收集最终产品, 所述的将氟塑料粘结至聚对苯二甲酸乙二醇酯层表面的加工装置 还包括收卷部件(未示出), 所述收卷部件位于所述加工装置的最末处, 用于收集已经复合好 的氟塑料 1和聚对苯二甲酸乙二醇酯层 2的膜或片材 3。 收卷部件例如可以是收卷机。 In order to facilitate the collection of the final product, the processing device for bonding the fluoroplastic to the surface of the polyethylene terephthalate layer further includes a winding member (not shown), and the winding member is located at the processing device At the end, a film or sheet 3 for collecting the fluoroplastic 1 and polyethylene terephthalate layer 2 which has been compounded is used. The winding member can be, for example, a winder.
实施例 1 Example 1
设备包括依次排列的如下部件: The device consists of the following components arranged in order:
( 1 ) 聚对苯二甲酸乙二醇酯层放卷装置, 控制恒速放卷, 速度为 5米至 100米 /分钟; (1) Polyethylene terephthalate layer unwinding device, controlling constant speed unwinding, speed from 5 meters to 100 meters / minute;
( 2 ) 电暈机; (2) Corona machine;
( 3 ) 两台挤出机 52 , —台螺杆直径为 120毫米用于挤出氟塑料层, 另一台螺杆直径为 75毫米用于挤出粘接树脂层, 挤出氟塑料层机头温度为 240摄氏度, 挤出粘接树 脂机头温度为 200摄氏度; (3) Two extruders 52, the diameter of the screw is 120 mm for extruding the fluoroplastic layer, and the other screw is 75 mm for extruding the adhesive resin layer, and the temperature of the fluoroplastic layer is extruded. At 240 degrees Celsius, the temperature of the extrusion bonding resin head is 200 degrees Celsius;
( 4 ) 两台挤出机 52与聚对苯二甲酸乙二醇酯层 2的放卷方向呈 60度角间隔放置; (4) Two extruders 52 are placed at an angular interval of 60 degrees from the unwinding direction of the polyethylene terephthalate layer 2;
( 5 ) 两台挤出机 52通过连接杆连接分配器, 分配器连接挤出模具 51 , 挤出模具 51位 于聚对苯二甲酸乙二醇酯层 2正上方, 挤出膜即多层塑料 1的总厚度为 10丝;(5) Two extruders 52 are connected to the distributor through a connecting rod, and the dispenser is connected to the extrusion die 51. The extrusion die 51 is located directly above the polyethylene terephthalate layer 2, and the extruded film is a multilayer plastic. The total thickness of 1 is 10 filaments;
( 6 ) 两才艮定形辊 61和 62, 均为金属辊, 直径均为 250毫米。 定形辊 62处于定形辊 61 的 60度角的高度, 如图 1所示; (6) Two sets of fixed rolls 61 and 62, both of which are metal rolls, each having a diameter of 250 mm. The setting roller 62 is at a height of 60 degrees of the setting roller 61, as shown in Fig. 1;
( 7 ) 收卷机, 收卷速度 5米至 100米 /分钟。 (7) Winding machine, winding speed from 5 meters to 100 meters / minute.
收卷后测试氟塑料 1和聚对苯二甲酸乙二醇酯层 2间的剥离强度达到 12牛顿 /厘米。 实施例 2 After the winding, the peel strength between the fluoroplastic 1 and the polyethylene terephthalate layer 2 was measured to be 12 N/cm. Example 2
( 1 ) 聚对苯二甲酸乙二醇酯层放卷装置, 控制恒速放卷, 速度为 20米至 200米 /分钟; ( 2 ) 烘箱, 加热温度为室温至 250摄氏度;
( 3 ) 三台挤出机 52, 螺杆直径均为 75毫米, 三台挤出机 52呈 45度角放置。 (1) Polyethylene terephthalate layer unwinding device, controlling constant speed unwinding, speed of 20 meters to 200 meters / minute; (2) oven, heating temperature is room temperature to 250 degrees Celsius; (3) Three extruders 52 having a screw diameter of 75 mm and three extruders 52 placed at an angle of 45 degrees.
( 4 ) 三台挤出机 52挤出的材料分别是氟塑料层 /氟塑料和丙烯酸酯树脂的混合物层 /粘 接树脂层, 氟塑料层挤出机头温度为 240度, 氟塑料和粘接树脂的混合物层挤出 机头温度为 220度, 粘接树脂层挤出机头温度为 200度; (4) The materials extruded by the three extruders 52 are fluoroplastic layer/mixture layer of fluoroplastic and acrylate resin/adhesive resin layer, fluoroplastic layer extruder head temperature is 240 degrees, fluoroplastic and sticky The temperature of the extruder layer of the resin mixture is 220 degrees, and the temperature of the adhesive resin layer extruder head is 200 degrees;
( 5 ) 三台挤出机 52直接连接带多模腔的挤出模具 51 , 挤出模具 51位于聚对苯二甲酸 乙二醇酯层 2正上方, 挤出膜即多层塑料 1的总厚度 1丝; (5) Three extruders 52 are directly connected to an extrusion die 51 having a multi-cavity cavity, and the extrusion die 51 is located directly above the polyethylene terephthalate layer 2, and the extruded film is the total of the multilayer plastic 1 1 wire thickness;
( 6 ) 三根定形辊, 两根金属辊、 一根橡胶辊。 金属辊直径 300毫米, 橡胶辊直径 250 毫米。 橡胶辊比金属辊位置高 15度; (6) Three shaped rolls, two metal rolls, one rubber roll. The metal roll has a diameter of 300 mm and the rubber roll has a diameter of 250 mm. The rubber roller is 15 degrees higher than the metal roller;
( 7 ) 后处理部件例如电暈处理机; (7) a post-processing component such as a corona processor;
( 8 ) 收卷机, 收卷速度为 20米至 200米 /分钟。 (8) Winding machine, winding speed from 20 meters to 200 meters / minute.
收卷后测试氟塑料 1和聚对苯二甲酸乙二醇酯层 2间的剥离强度达到 20牛顿 /厘米。 本 实施例增加了后处理部件-电暈机, 后处理部件的构造可以同预处理部件的结构, 用于增 加复合好的产品的表面能, 以利于以后进一步使用。 实施例 3 After the winding, the peel strength between the fluoroplastic 1 and the polyethylene terephthalate layer 2 was measured to be 20 N/cm. This embodiment adds a post-processing component-corona machine which can be constructed in the same manner as the pre-treatment component to increase the surface energy of the composite product for further use. Example 3
( 1 ) 聚对苯二甲酸乙二醇酯层放卷装置, 控制恒速放卷, 放卷速度 10米至 300米; ( 2 ) 火焰处理机; (1) Polyethylene terephthalate layer unwinding device, controlling constant speed unwinding, unwinding speed 10 to 300 meters; (2) Flame treatment machine;
( 3 ) 六台挤出机 52, 螺杆直径均为 75毫米, 一台挤出氟塑料, 三台挤出过渡塑料, 两台挤出水汽阻隔层。 六台挤出机 52中的三台分置于一个平台上, 另三台置于平 台下。 挤出机 52均呈 45度角放置。 (3) Six extruders 52, with a screw diameter of 75 mm, one extruded fluoroplastic, three extruded transition plastics, and two extruded water vapor barrier layers. Three of the six extruders 52 were placed on one platform and the other three were placed under the platform. The extruders 52 are all placed at an angle of 45 degrees.
( 4 ) 六台挤出机 52挤出的材料分别是氟塑料层 /粘接树脂层 /尼龙层 /粘接树脂层 /EVOH 层 /粘接树脂层; (4) The materials extruded by the six extruders 52 are respectively a fluoroplastic layer/adhesive resin layer/nylon layer/adhesive resin layer/EVOH layer/adhesive resin layer;
( 5 ) 六台挤出机 52连接分配器, 分配器连接挤出模具 51 , 挤出模具 51位于聚对苯二 甲酸乙二醇酯层 2正上方, 挤出膜即多层塑料 1的总厚度 5丝; (5) Six extruders 52 are connected to the dispenser, and the dispenser is connected to the extrusion die 51. The extrusion die 51 is located directly above the polyethylene terephthalate layer 2, and the extruded film is the total of the multilayer plastic 1 5 wires in thickness;
( 6 ) 两根定形辊 61和 62, —根金属辊、 一根橡胶辊。 金属辊直径 300毫米, 橡胶辊 直径 150毫米。 橡胶辊比金属辊位置高 60度; (6) Two setting rolls 61 and 62, a metal roll and a rubber roll. The metal roll has a diameter of 300 mm and the rubber roll has a diameter of 150 mm. The rubber roller is 60 degrees higher than the metal roller;
( 7 ) 收卷机, 收卷速度 10米至 300米。 (7) Winding machine, winding speed from 10 meters to 300 meters.
收卷后测试氟塑料 1和聚对苯二甲酸乙二醇酯 2间的剥离强度, 无法分离。 因此, 本发明的将氟塑料粘结至聚对苯二甲酸乙二醇酯层表面的加工方法同时包含多层 共挤和挤出涂布工艺, 通过将所述氟塑料挤出流延至所述聚对苯二甲酸乙二醇酯层表面, 然
后将所述氟塑料和所述聚对苯二甲酸乙二醇酯层(PET层)挤压定形, 从而将氟塑料粘结至 聚对苯二甲酸乙二醇酯层表面, 构思独特, 形成的产品粘结强度高。 After the winding, the peel strength between the fluoroplastic 1 and the polyethylene terephthalate 2 was tested and it was impossible to separate. Therefore, the processing method of the present invention for bonding a fluoroplastic to a surface of a polyethylene terephthalate layer simultaneously comprises a multilayer coextrusion and extrusion coating process by extruding the fluoroplastic to the Polyethylene terephthalate layer surface, of course Thereafter, the fluoroplastic and the polyethylene terephthalate layer (PET layer) are extrusion-shaped, thereby bonding the fluoroplastic to the surface of the polyethylene terephthalate layer, and the concept is unique and formed. The product has a high bond strength.
综上, 本发明的将氟塑料粘结至聚对苯二甲酸乙二醇酯层表面的加工方法构思巧妙, 筒 化了工艺、 增强了粘结强度, 由于不使用溶剂, 也不需要溶剂挥发的过程, 所以降低了生产 成本提高了生产速度, 且非常环保, 适于大规模推广应用。 In summary, the processing method for bonding the fluoroplastic to the surface of the polyethylene terephthalate layer of the present invention is ingeniously designed, the process is consolidated, the bonding strength is enhanced, and the solvent is not required to be evaporated. The process, so the production cost is reduced, the production speed is increased, and it is very environmentally friendly, which is suitable for large-scale promotion and application.
在此说明书中, 本发明已参照其特定的实施例作了描述。 但是, 很显然仍可以做出各种 修改和变换而不背离本发明的精神和范围。 因此, 说明书和附图应被认为是说明性的而非限 制性的。
In this specification, the invention has been described with reference to specific embodiments thereof. However, it will be apparent that various modifications and changes can be made without departing from the spirit and scope of the invention. Accordingly, the specification and figures are to be regarded as illustrative and not limiting.
Claims
1. 一种将氟塑料粘结至聚对苯二甲酸乙二醇酯层表面的加工方法, 其特征在于, 将所述氟塑 料通过多层共挤并挤出流延至所述聚对苯二甲酸乙二醇酯层表面,然后将所述氟塑料和所 述聚对苯二甲酸乙二醇酯层挤压定形。 A processing method for bonding a fluoroplastic to a surface of a polyethylene terephthalate layer, characterized in that the fluoroplastic is coextruded and extruded by a plurality of layers to the polyparaphenylene The surface of the ethylene glycolate layer is then extruded and shaped into the fluoroplastic and the polyethylene terephthalate layer.
2. 根据权利要求 1所述的将氟塑料粘结至聚对苯二甲酸乙二醇酯层表面的加工方法, 其特征 在于, 所述氟塑料为包括氟塑料层的多层塑料, 所述多层塑料通过多层共挤并挤出流延至 所述聚对苯二甲酸乙二醇酯层表面, 在挤出流延至所述聚对苯二甲酸乙二醇酯层表面后, 所述氟塑料层位于远离所述聚对苯二甲酸乙二醇酯层的最外层。 2 . The processing method for bonding a fluoroplastic to a surface of a polyethylene terephthalate layer according to claim 1 , wherein the fluoroplastic is a multilayer plastic comprising a fluoroplastic layer, The multilayer plastic is cast and extruded onto the surface of the polyethylene terephthalate layer by multilayer coextrusion, and after extrusion casting onto the surface of the polyethylene terephthalate layer, the fluorine The plastic layer is located away from the outermost layer of the polyethylene terephthalate layer.
3. 根据权利要求 1所述的将氟塑料粘结至聚对苯二甲酸乙二醇酯层表面的加工方法, 其特征 在于, 所述氟塑料为两至六层塑料, 最外层为氟塑料层, 其余各层与相邻两层有良好的相 容性,粘接所述聚对苯二甲酸乙二醇酯层的塑料与聚对苯二甲酸乙二醇酯层有良好的相容 性。 3. The method for bonding a fluoroplastic to a surface of a polyethylene terephthalate layer according to claim 1, wherein the fluoroplastic is two to six layers of plastic, and the outermost layer is fluorine. The plastic layer has good compatibility with the adjacent two layers, and the plastic bonding the polyethylene terephthalate layer has good compatibility with the polyethylene terephthalate layer. Sex.
4. 根据权利要求 1所述的将氟塑料粘结至聚对苯二甲酸乙二醇酯层表面的加工方法, 其特征 在于,将所述氟塑料和所述聚对苯二甲酸乙二醇酯层通过至少两个以上相对设置的定形辊 实现所述挤压定形。 4. The method of bonding a fluoroplastic to a surface of a polyethylene terephthalate layer according to claim 1, wherein the fluoroplastic and the polyethylene terephthalate are The ester layer is formed by at least two or more oppositely disposed shaped rolls.
5. 一种将氟塑料粘结至聚对苯二甲酸乙二醇酯层表面的加工装置, 其特征在于, 包括聚对苯 二甲酸乙二醇酯层送料部件、 多层共挤部件和挤压定形部件, 所述多层共挤部件位于所述 聚对苯二甲酸乙二醇酯层送料部件下游,并与所述聚对苯二甲酸乙二醇酯层送料部件配合 设置用于将由所述多层共挤部件挤出的最外层为氟塑料层的多层塑料流延至所述聚对苯 二甲酸乙二醇酯层送料部件输送出的聚对苯二甲酸乙二醇酯层表面,所述挤压定形部件位 于所述多层共挤部件下游用于将所述多层塑料和所述聚对苯二甲酸乙二醇酯层挤压定形。 A processing apparatus for bonding a fluoroplastic to a surface of a polyethylene terephthalate layer, comprising: a polyethylene terephthalate layer feeding member, a multilayer co-extruded member, and a squeezing a pressure-setting member, the multi-layer co-extruded member is located downstream of the polyethylene terephthalate layer feeding member, and is disposed in cooperation with the polyethylene terephthalate layer feeding member for The multilayer plastic extruded from the outer layer of the multi-layer co-extruded component is a fluoroplastic layer cast to the surface of the polyethylene terephthalate layer conveyed by the polyethylene terephthalate layer feeding member The extrusion shaped member is located downstream of the multilayer coextruded component for squeezing the multilayer plastic and the polyethylene terephthalate layer.
6. 根据权利要求 5所述的将氟塑料粘结至聚对苯二甲酸乙二醇酯层表面的加工装置, 其特征 在于, 所述聚对苯二甲酸乙二醇酯层送料部件是聚对苯二甲酸乙二醇酯层放卷装置。6. The processing apparatus for bonding a fluoroplastic to a surface of a polyethylene terephthalate layer according to claim 5, wherein the polyethylene terephthalate layer feeding member is a polymer A polyethylene terephthalate layer unwinding device.
7. 根据权利要求 5所述的将氟塑料粘结至聚对苯二甲酸乙二醇酯层表面的加工装置, 其特征 在于, 所述多层共挤部件包括挤出模具和两至六台挤出机, 所述挤出机均连接所述挤出模 具,所述挤出模具与所述聚对苯二甲酸乙二醇酯层送料部件配合设置从而所述多层共挤部 件通过所述挤出模具将挤出的所述多层塑料流延至所述聚对苯二甲酸乙二醇酯层表面。7. The processing apparatus for bonding a fluoroplastic to a surface of a polyethylene terephthalate layer according to claim 5, wherein the multilayer co-extruded member comprises an extrusion die and two to six An extruder, each of which is coupled to the extrusion die, the extrusion die being disposed in cooperation with the polyethylene terephthalate layer feeding member such that the multilayer co-extruded member passes the The extrusion die casts the extruded multilayer plastic to the surface of the polyethylene terephthalate layer.
8. 根据权利要求 5所述的将氟塑料粘结至聚对苯二甲酸乙二醇酯层表面的加工装置, 其特征 在于, 所述挤压定形部件包括至少两个以上位置相对的定形辊。 根据权利要求 5所述的将氟塑料粘结至聚对苯二甲酸乙二醇酯层表面的加工装置, 其特征 在于, 所述的将氟塑料粘结至聚对苯二甲酸乙二醇酯层表面的加工装置还包括预处理部 件,所述预处理部件位于所述聚对苯二甲酸乙二醇酯层送料部件和所述多层共挤部件之间 用于对所述聚对苯二甲酸乙二醇酯层表面进行电暈、 等离子、 加热或火焰预处理。 8. The processing apparatus for bonding a fluoroplastic to a surface of a polyethylene terephthalate layer according to claim 5, wherein the extrusion-shaped member comprises at least two fixed rolls of opposite positions . A processing apparatus for bonding a fluoroplastic to a surface of a polyethylene terephthalate layer according to claim 5, wherein said fluoroplastic is bonded to polyethylene terephthalate The processing device of the layer surface further includes a pretreatment member between the polyethylene terephthalate layer feeding member and the multilayer coextrusion member for the polyparaphenylene The surface of the ethylene glycolate layer is subjected to corona, plasma, heat or flame pretreatment.
根据权利要求 5所述的将氟塑料粘结至聚对苯二甲酸乙二醇酯层表面的加工装置, 其特征 在于, 所述的将氟塑料粘结至聚对苯二甲酸乙二醇酯层表面的加工装置还包括收卷部件, 所述收卷部件位于所述挤压定形部件的下游,用于收集已经复合好的多层塑料和聚对苯二 甲酸乙二醇酯层。 A processing apparatus for bonding a fluoroplastic to a surface of a polyethylene terephthalate layer according to claim 5, wherein said fluoroplastic is bonded to polyethylene terephthalate The processing apparatus of the layer surface further includes a winding member located downstream of the extrusion shaping member for collecting the multilayered plastic and polyethylene terephthalate layer that has been composited.
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CN106808662A (en) * | 2017-02-24 | 2017-06-09 | 苏州度辰新材料有限公司 | A kind of lithium battery is packed for the preparation method of aluminum plastic film |
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CN101879808A (en) * | 2010-06-22 | 2010-11-10 | 李民 | Method for bonding fluoroplastic layer and polyester layer |
CN102179934A (en) * | 2011-02-18 | 2011-09-14 | 李民 | Processing method for bonding fluorine plastic to surface of polyethylene glycol terephthalate layer and relevant processing equipment |
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CN101879808A (en) * | 2010-06-22 | 2010-11-10 | 李民 | Method for bonding fluoroplastic layer and polyester layer |
CN102179934A (en) * | 2011-02-18 | 2011-09-14 | 李民 | Processing method for bonding fluorine plastic to surface of polyethylene glycol terephthalate layer and relevant processing equipment |
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CN109968575B (en) * | 2019-05-16 | 2024-03-29 | 江苏科润膜材料有限公司 | Steel belt casting machine for producing enhanced perfluorinated ion exchange membrane |
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