CN109454845B - Extrusion compounding device and process for high-peel-strength glue-free composite material - Google Patents
Extrusion compounding device and process for high-peel-strength glue-free composite material Download PDFInfo
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- CN109454845B CN109454845B CN201811313519.XA CN201811313519A CN109454845B CN 109454845 B CN109454845 B CN 109454845B CN 201811313519 A CN201811313519 A CN 201811313519A CN 109454845 B CN109454845 B CN 109454845B
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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
- B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
- B29C71/04—After-treatment of articles without altering their shape; Apparatus therefor by wave energy or particle radiation, e.g. for curing or vulcanising preformed articles
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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
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
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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
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0008—Electrical discharge treatment, e.g. corona, plasma treatment; wave energy or particle radiation
Abstract
The invention discloses extrusion compounding equipment and process of a high-peel-strength glue-free composite material, and the equipment comprises a substrate unreeling device, a polarization treatment device, a compounding device, a reeling device, a co-extrusion extruder and a carrier energy guide device, wherein the substrate unreeling device, the polarization treatment device, the compounding device and the reeling device are sequentially arranged along the conveying direction of a substrate; the substrate is firstly subjected to surface polarization treatment by a polarization treatment device, the extruded film is firstly subjected to activation treatment by an overload wave guide energy device, then the substrate and the extruded film are compounded in a compounding device, and finally the substrate and the extruded film are conveyed to a winding device for winding. The invention can prepare the glue-free high-peel-strength composite film, is environment-friendly and nontoxic, and can be widely applied to the food and drug packaging industry.
Description
Technical Field
The invention relates to the technical field of plastic flexible packaging material manufacturing, in particular to extrusion compounding equipment and process for a high-peel-strength glue-free composite material.
Background
In the plastic flexible packaging industry, in the conventional packaging material, in order to make the film layers in the packaging material have higher peel strength, glue is generally added between the film layers to make the film layers adhere to each other. However, in the actual production process, the solvent in the glue volatilizes to release toxic substances such as VOC and the like, and the organic solvent is difficult to completely volatilize due to the good compatibility between the organic solvent and the glue, so that part of the organic solvent is remained in the final product. When the packaging material is applied to food and drug packaging, the residual organic solvent risks migrating to the contents of the package, which may have adverse effects on human health.
In order to overcome the above problems, in the current extrusion lamination equipment used in the plastic flexible packaging industry, a manner of adhering the base material with the extrusion resin is also adopted to reduce the amount of glue used, as shown in fig. 1 or 2, generally, the extrusion film 2 is extruded by an extruder and is laminated with the base material (i.e. one or both of the main roll base material 3 and the secondary roll base material 6) to form the packaging material. However, in practical application, the peel strength of the packaging material manufactured by the method is low, and the ideal state is often difficult to achieve.
In order to improve the peel strength of the composite packaging material, the following two treatment methods are available: the first is to raise the temperature of the die head, the higher the temperature of the extruded resin reaching the composite, the better the flowability, the better the adhesion to the substrate, and the higher the peel strength; however, in this treatment method, the stability of temperature is difficult to control, and when the temperature is too low, the peel strength cannot be improved, and when the temperature is too high, the extruded resin is easily decomposed by overheating, and film formation and scorching are difficult to occur, and waste products are generated, and therefore, the yield of the processing method is very low. The other is to increase the distance between the extrusion die head and the composite roller, namely, the height of the air gap L1 is increased, which is equivalent to increase the oxidation distance, the molten resin is contacted with oxygen in the air at high temperature to be fully oxidized to generate partial polar groups, thus being beneficial to the adhesion with the base material and improving the peeling strength of the composite material; on the contrary, if the height of the air gap is too small, the oxidation time is short, the oxidation is insufficient, and the peeling strength of the composite material is low; however, if the height of the air gap is too large, the thickness of the extruded resin film is very thin, generally not more than 0.015mm, and the temperature reduction rate is too fast, which limits the degree of oxidation reaction, so that the peel strength of the packaging material after compounding is not easily increased but rather decreased when the packaging material is processed by the method.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the extrusion compounding equipment for the glue-free composite material with high peel strength.
The invention also aims to provide an extrusion compounding process of the high-peel-strength glue-free composite material, which is realized by the equipment.
The technical scheme of the invention is as follows: an extrusion compounding device for a high-peel-strength glue-free composite material comprises a substrate unreeling device, a polarization treatment device, a compounding device, a reeling device, a co-extrusion extruder and a carrier energy guide device, wherein the substrate unreeling device, the polarization treatment device, the compounding device and the reeling device are sequentially arranged along a substrate conveying direction, the co-extrusion extruder is arranged above the compounding device, a compounding area is formed in the compounding device, an activation area is formed between a die head of the co-extrusion extruder and the compounding device, the activation area is positioned above the compounding area, and the carrier energy guide device is arranged in the activation area; the substrate that substrate unwinding device discharged carries out surface polarization treatment through polarization processing apparatus earlier, and the extrusion film that co-extrusion extruder was extruded carries out activation treatment through transshipping waveguide energy device earlier, then the substrate with extrude the membrane and compound in set composite, send to the coiling mechanism at last and carry out the rolling.
The wave energy-carrying device comprises an infrared medium wave emitter and a protective cover, and the infrared medium wave emitter is arranged in the protective cover. When an extruded film extruded from a die head of the co-extrusion extruder passes through an activation region, the infrared medium wave emitter releases energy to activate the extruded film, and then the extruded film is conveyed to a compounding device to be compounded with a base material.
In the waveguide energy-carrying device, the protective cover is made of stainless steel and is in a hollow cuboid shape, the inner side surface of the protective cover is a mirror surface, and one side of the protective cover facing the extrusion film is in a net structure; the infrared medium wave emitter is in a long tube shape and comprises at least two parallel emitting tubes, the emitting tubes are arranged in parallel and installed in the protective cover, and a coating is arranged on one side, close to the protective cover, of each emitting tube. The mirror surface of the protective cover reflects infrared medium waves released by the infrared medium wave emitter, and the activation effect of the infrared medium waves on the extruded film can be further enhanced.
The waveguide energy carrying device is provided with an installation frame and is installed on one side of a die head of the co-extrusion extruder through the installation frame; the integral length of the waveguide energy-carrying device is greater than or equal to the length of the die head;
the number of the mounting frames is at least two, each mounting frame comprises a mounting lug and a connecting plate, one end of each mounting lug is connected with the protective cover, the other end of each mounting lug is connected with one end of each connecting plate, and the other end of each connecting plate is connected with a die head of the co-extrusion extruder;
the mounting lug is of an integrally formed L-shaped structure, one side edge of the mounting lug is provided with a mounting round hole, and the other side edge of the mounting lug is provided with a mounting long hole;
the connecting plate is of a flat structure, one end of the connecting plate is also provided with a mounting round hole, and the other end of the connecting plate is also provided with a mounting long hole. Wherein, all be equipped with the installation slot hole on installation ear and the connecting plate, can make things convenient for the mounted position of carrying the waveguide energy device to adjust.
And the activation region is also internally provided with a temperature measuring device, and the temperature measuring device and the carrier energy guide device are oppositely positioned at two sides of the extrusion film. The temperature measuring device and the carrier energy guide device are respectively connected with a control system of the extrusion compounding equipment, the temperature of the extruded film is detected through the temperature measuring device in the process of extruding the extruded film by a die head of the co-extrusion extruder, the temperature is fed back to the control system, and the infrared medium wave emitter is adjusted through the control system, so that the purposes of temperature constancy and automatic adjustment are achieved. The temperature measuring device can adopt a non-contact infrared thermometer.
The composite device is characterized in that a composite roller set is arranged in a composite area of the composite device, the composite roller set comprises a cooling roller and a rubber roller which are matched with each other, a composite area is formed between the cooling roller and the rubber roller, and an extrusion film is composited with a base material in the composite area.
The die head of the co-extrusion extruder comprises a left die body, a right die body and a die, the left die body and the right die body are symmetrical in structure, a flow channel is formed between the left die body and the right die body, the die is installed at the bottoms of the left die body and the right die body, a film outlet is formed in the middle of the die, and the width of the film outlet is smaller than the width of the flow channel.
The extrusion compounding equipment further comprises an interlayer unreeling device, the interlayer unreeling device emits interlayer materials and sends the interlayer materials to the compounding device, and the base material, the extrusion film and the interlayer materials are compounded in the compounding device. The equipment with the structure can be suitable for processing composite materials with more layers, the two sides of the extrusion film subjected to activation treatment are respectively bonded with the base material and the interlayer material, the peeling strength is high, and in actual production, the situation that glue is adopted to bond the films of all layers can be avoided.
And an oven is also arranged between the polarization treatment device and the composite device. Wherein, whether the oven is started for use can be selected according to the actual requirements of the prepared composite material. In addition, along the direction of delivery of substrate, still can set up the glue spreader before the oven, make this equipment not only can be applied to no glue combined material production, also can be used to have glue combined material production, the user select according to the production needs can to make this equipment application range wider.
In addition, in the extrusion compounding equipment for the high-peel-strength glue-free composite material, one or more of a trimming device, a thickness uniformity adjusting device or a film cutting device can be additionally arranged between the compounding device and the winding device according to the actual requirement of the production process so as to perfect the subsequent treatment of the composite material. The trimming device, the thickness uniformity adjusting device and the film cutting device are all installed by adopting the existing corresponding devices.
The invention relates to an extrusion compounding process of a high-peel-strength glue-free composite material, which comprises the following steps of:
(1) the substrate unwinding device discharges the substrate, and the substrate is subjected to surface polarization treatment by the polarization treatment device;
the polarization treatment device adopts high-frequency high-voltage corona discharge on the surface of the base material so as to generate low-temperature plasma, so that free radicals are generated on the surface of the base material, and the roughness and polarity of the surface of the base material are increased, namely the surface tension is increased; on one hand, free radicals, polar groups and the like generated in the polarization treatment process of the base material can be chemically reacted with free radicals and polar groups generated on the surface of the extruded film in the subsequent process, so that more chemical bonds are generated between the extruded film and the base material, the bonding strength of the extruded film and the base material is improved, and the peeling strength between the extruded film and the base material is improved; on the other hand, the polarization treatment promotes the increase of the roughness of the surface of the base material, and can generate anchoring with the extruded resin, and increase the mechanical interlocking force, thereby improving the peeling strength between the base material and the extruded resin. The polarization treatment device adopted in the equipment and the process is an existing atmospheric low-temperature plasma treatment machine in the market, the polarization effect of the equipment and the process is better than that of a traditional corona device, a PET film is taken as an example, the surface tension of the traditional corona device after treatment is 48dyn/cm, and the surface tension of the equipment and the process after treatment can reach 60 dyn/cm.
(2) Extruding an extruded film from a die head by a co-extrusion extruder, and performing activation treatment on the extruded film in an activation region by a carrier energy guide device;
in the activation region, on one hand, the energy released by the carrier energy-conducting device is converted into heat energy, so that the temperature of the extruded film is increased, the activation reaction rate is further increased, and the activation degree of the surface of the extruded film is increased; on the other hand, infrared medium waves released by the carrier energy-conducting device excite molecular chains on the surface of the extruded film to break, more free radicals are generated, and chemical reaction is also promoted among the molecular chains, so that the peeling strength between the extruded film and the base material is improved, wherein the chemical reaction process is as follows:
RH→R·+H·
R·+O2→ROO·
ROO·+RH→ROOH+R·
(3) simultaneously feeding the base material subjected to surface corona treatment and the extruded film subjected to activation treatment into a compounding device, and compounding in a compounding area in the compounding device;
(4) the formed composite material is sent out and wound by a winding device.
In the step (2), the thickness of the extruded film is 2.5-40 μm, and the extruded film is made of LDPE, PP, EVA, EAA or EMAA;
when the material of the extruded film is LDPE, the infrared medium wave emitter promotes the temperature of the extruded film to be 320 ℃;
when the material of the extruded film is PP or EAA, the temperature of the extruded film is promoted to be 280 ℃ by the infrared medium wave emitter;
when the material of the extruded film is EVA, the temperature of the extruded film is promoted to be 245 ℃ by the infrared medium wave emitter;
when the extruded film was made of EMAA, the infrared medium wave emitter caused the extruded film to have a temperature of 310 ℃.
Compared with the prior art, the invention has the following beneficial effects:
the extrusion compounding equipment and the process of the high-peel-strength glue-free composite material use the carrier wave energy guide device to form an activation region between a die head of a co-extrusion extruder and the compounding device, and carry out activation treatment on the surface of an extruded film in the region by using the carrier wave energy guide device, so that the activation reaction rate is improved, and the activation degree of the surface of the extruded film is increased; the molecular chains on the surface of the extruded film are excited to break, more free radicals are generated, the chemical reaction is promoted, the adhesion of the extruded film is enhanced, and the peeling strength of the composite film is improved.
In the extrusion compounding equipment of the high-peel-strength glue-free composite material, a temperature measuring device connected with an equipment control system can be further arranged, the temperature measuring device is combined with a carrier wave energy guide device for use, the temperature of an extruded film can be measured in real time, the output power of the carrier wave energy guide device is adjusted in real time according to the obtained measured value, the temperature of the extruded film is constant, the purpose of automatic adjustment is achieved, the stability of the extruded film is guaranteed, and the improvement of the product quality is facilitated.
The extrusion compounding equipment and the process of the high-peel-strength glue-free composite material have the advantages that the surface polarization treatment is carried out on the base material by arranging the polarization treatment device, so that the surface activity and the roughness of the base material are increased, the subsequent compounding with an extruded film and an interlayer material is facilitated, and the peel strength of the composite material is improved (here, the polarization treatment device adopts low-temperature plasma corona, the effect is much better than that of a traditional corona machine, for example, a PET film is used, the common corona value is 48dyn/cm, and the process value can reach 60 dyn/cm).
The extrusion compounding equipment and the process for the high-peel-strength glue-free composite material can also arrange an oven between the polarization treatment device and the compounding device, can be selected according to actual needs, and expand the application range of the equipment. Meanwhile, one or more of a trimming device, a thickness uniformity adjusting device or a film cutting device can be additionally arranged between the compounding device and the rolling device according to the actual requirement of the production process so as to perfect the subsequent treatment of the composite material.
The extrusion compounding equipment and the extrusion compounding process of the high-peel-strength glue-free composite material have the advantages that glue does not need to be added between layers of the composite film, the process steps and the glue cost are saved, the glue-free adhesive composite film produced by the method has the advantages of environmental friendliness and no toxicity, the application range of the composite film can be expanded, and the equipment and the process are particularly applied to the field of food and medicine packaging.
Drawings
FIG. 1 is a schematic diagram of a conventional extrusion lamination of two-layer films.
Fig. 2 is a schematic diagram of a conventional extrusion composite three-layer film.
Fig. 3 is a schematic view of the overall structure of the extrusion compounding device for the high-peel-strength glue-free composite material.
FIG. 4 is a schematic view of the die head, carrier energy-conducting device and composite device in example 1.
Fig. 5 is a schematic diagram of a structure of an infrared medium wave emitter.
Fig. 6 is a schematic structural view of the shield.
Fig. 7 is a schematic structural view of the connection between the mounting bracket and the protective cover.
Fig. 8 is a schematic structural view of the connection plate.
Fig. 9 is a schematic view of a mounting ear.
FIG. 10 is a schematic cross-sectional view of the die of the co-extrusion extruder.
FIG. 11 is a schematic diagram showing the overall structure of the die of the co-extrusion extruder.
FIG. 12 is a schematic view of the die head, carrier wave energy-conducting device and composite device in example 4.
FIG. 13 is a schematic view of the die, carrier wave energy-conducting device and composite device in example 5.
In the above drawings, 1 is a die head, 2 is an extrusion film, 3 is a main unreeling substrate, 4 is a cooling roller, 5 is a rubber roller, 6 is a secondary unreeling substrate, 7 is an infrared medium wave emitter, 8 is a protective cover, 9 is a mounting lug, 10 is a connecting plate, 11 is a temperature measuring device, 12 is a substrate unreeling device, 13 is a polarization processing device, 14 is an oven, 15 is a compounding device, 16 is a co-extrusion extruder, 17 is a waveguide energy carrying device, 18 is an edge cutting device, 19 is an interlayer unreeling device, 20 is a thickness uniformity adjusting device, 21 is a film cutting device, 22 is a reeling device, 1a is a left die body, 1b is a right die body, 1c is a die opening, 1d is a flow channel, 1e is a film outlet, H is an activation region, L1 is an air gap height in the prior art, and L2 is an air gap height in the present application.
Detailed Description
The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.
Example 1
The extrusion compounding device for the high-peel-strength glue-free composite material comprises a substrate unreeling device 12, a polarization treatment device 13, a compounding device 15, a reeling device 22, a co-extrusion extruder 16 and a carrier energy guide device 17, wherein the substrate unreeling device, the polarization treatment device, the compounding device and the reeling device are sequentially arranged along the conveying direction of a substrate, the co-extrusion extruder is arranged above the compounding device, a compounding area is formed in the compounding device, an activation area H is formed between a die head of the co-extrusion extruder and the compounding device, the activation area is arranged above the compounding area, and a carrier energy guide device is arranged in the activation area; the substrate (i.e. the main unreeling substrate 3) discharged from the substrate unreeling device is firstly subjected to surface corona treatment by the polarization treatment device, the extruded film extruded by the co-extrusion extruder is firstly subjected to activation treatment by the overload wave guide energy device, and then the substrate and the extruded film are compounded in the compounding device, and finally sent to the reeling device for reeling as shown in fig. 4.
As shown in fig. 5 or fig. 6, the carrier wave energy guide device includes an infrared medium wave emitter 7 and a shield 8, and the infrared medium wave emitter is mounted in the shield. In the carrier energy-conducting device, the protective cover is made of stainless steel and is in a hollow cuboid shape, the inner side surface of the protective cover is a mirror surface, and one side of the protective cover facing the extrusion film is in a net structure; the infrared medium wave emitter is in long tube shape, including at least two side-by-side emitting tubes, each emitting tube is arranged in parallel in the protective cover, one side of each emitting tube near the protective cover is provided with a coating (wherein, the coating material can adopt gold, ceramic or ruby (the difference lies in the reflection efficiency and the heat resistance of the coating, specifically: 1. the gold-plated reflecting layer is a gold coating, directly fixed on the surface of the quartz tube, and can reflect more than 90% of infrared ray, if appropriate cooling protection is available, the working temperature of the gold-plated reflecting layer can reach about 600 ℃, 2. the white-coated reflecting layer is a ceramic coating, directly fixed on the surface of the quartz tube, and can reflect more than 70% of infrared ray, the reflection effect is not good than that of the gold-plated reflecting layer, but the working temperature can reach 900 ℃ to 1000 ℃, 3. the ruby reflecting layer can reduce the infrared radiation intensity of the filament, usually, the whole body of the quartz tube is wrapped, the direction in which the transmitting tube transmits electromagnetic waves can be controlled by a coating, in this embodiment, the coating material is gold). The mirror surface of the protective cover reflects infrared medium waves released by the infrared medium wave emitter, and the activation effect of the infrared medium waves on the extruded film can be further enhanced. When the extruded film extruded from the die head of the co-extrusion extruder passes through the activation region, the energy is released by the infrared medium wave emitter to carry out activation treatment on the extruded film, and then the extruded film is conveyed to the compounding device to be compounded with the base material. The air gap height L2 of the present application can be increased to about three times of the air gap height L1 of the prior art, so that the activation reaction of the surface of the extruded film is fully reacted, and the extruded film has stronger adhesive force.
As shown in fig. 7, the waveguide energy-carrying device is provided with a mounting rack and is mounted on one side of the die head of the co-extrusion extruder through the mounting rack; the integral length of the waveguide energy-carrying device is greater than or equal to the length of the die head; the number of the mounting frames is at least two, each mounting frame comprises a mounting lug and a connecting plate, one end of each mounting lug is connected with the protective cover, the other end of each mounting lug is connected with one end of each connecting plate, and the other end of each connecting plate is connected with a die head of the co-extrusion extruder; as shown in fig. 8, the connecting plate is a flat plate structure, one end of the connecting plate is also provided with a mounting round hole, and the other end is also provided with a mounting long hole; as shown in fig. 9, the mounting lug is an integrally formed L-shaped structure, and a mounting round hole is formed on one side edge of the mounting lug, and a mounting long hole is formed on the other side edge of the mounting lug. Wherein, all be equipped with the installation slot hole on installation ear and the connecting plate, can make things convenient for the mounted position of carrying the waveguide energy device to adjust.
And a temperature measuring device 11 is also arranged in the activation region, and the temperature measuring device and the carrier energy guide device are oppositely positioned on two sides of the extrusion film. The temperature measuring device and the carrier energy guide device are respectively connected with a control system of the extrusion compounding equipment, the temperature of the extruded film is detected through the temperature measuring device in the process of extruding the extruded film by a die head of the co-extrusion extruder, the temperature is fed back to the control system, and the infrared medium wave emitter is adjusted through the control system, so that the purposes of temperature constancy and automatic adjustment are achieved. The temperature measuring device can adopt a non-contact infrared thermometer.
And a composite roller set is arranged in a composite area of the composite device, the composite roller set comprises a cooling roller 4 and a rubber roller 5 which are matched, a composite area is formed between the cooling roller and the rubber roller, and the extruded film is composited with the base material in the composite area.
As shown in fig. 10 or 11, the die head of the co-extrusion extruder includes a left die body, a right die body and a die, the left die body and the right die body are symmetrical in structure, a flow channel 1d is formed between the left die body and the right die body, the die is installed at the bottom of the left die body and the bottom of the right die body, a film outlet 1e is formed in the middle of the die, and the width of the film outlet is smaller than the width of the flow channel.
The extrusion compounding process of the high-peel-strength glue-free composite material can be realized through the equipment, and comprises the following steps:
(1) the substrate unwinding device discharges the substrate, and the substrate is subjected to surface polarization treatment by the polarization treatment device;
the polarization treatment device adopts high-frequency high-voltage corona discharge on the surface of the base material so as to generate low-temperature plasma, so that free radicals are generated on the surface of the base material, and the roughness and polarity of the surface of the base material are increased, namely the surface tension is increased; on one hand, free radicals, polar groups and the like generated in the polarization treatment process of the base material can be chemically reacted with free radicals and polar groups generated on the surface of the extruded film in the subsequent process, so that more chemical bonds are generated between the extruded film and the base material, the bonding strength of the extruded film and the base material is improved, and the peeling strength between the extruded film and the base material is improved; on the other hand, the polarization treatment promotes the increase of the roughness of the surface of the base material, and can generate anchoring with the extruded resin, and increase the mechanical interlocking force, thereby improving the peeling strength between the base material and the extruded resin. The polarization treatment device adopted in the embodiment is an existing atmospheric low-temperature plasma treatment machine in the market, the polarization effect of the device is better than that of a traditional corona device, a PET film is taken as an example, the surface tension of the treated product of the traditional corona device is 48dyn/cm, and the surface tension of the treated product of the polarization treatment device adopted in the equipment and the process can reach 60 dyn/cm.
(2) Extruding an extruded film from a die head by a co-extrusion extruder, and performing activation treatment on the extruded film in an activation region by a carrier energy guide device;
in the activation region, on one hand, the energy released by the carrier energy-conducting device is converted into heat energy, so that the temperature of the extruded film is increased, the activation reaction rate is further increased, and the activation degree of the surface of the extruded film is increased; on the other hand, infrared medium waves released by the carrier energy-conducting device excite molecular chains on the surface of the extruded film to break, more free radicals are generated, and chemical reaction is also promoted among the molecular chains, so that the peeling strength between the extruded film and the base material is improved, wherein the chemical reaction process is as follows:
RH→R·+H·
R·+O2→ROO·
ROO·+RH→ROOH+R·
(3) simultaneously feeding the base material subjected to surface corona treatment and the extruded film subjected to activation treatment into a compounding device, and compounding in a compounding area in the compounding device;
(4) the formed composite material is sent out and wound by a winding device.
In the step (2), the thickness of the extruded film is 2.5-40 μm, and the extruded film is made of LDPE, PP, EVA, EAA or EMAA;
when the material of the extruded film is LDPE, the infrared medium wave emitter promotes the temperature of the extruded film to be 320 ℃;
when the material of the extruded film is PP or EAA, the temperature of the extruded film is promoted to be 280 ℃ by the infrared medium wave emitter;
when the material of the extruded film is EVA, the temperature of the extruded film is promoted to be 245 ℃ by the infrared medium wave emitter;
when the extruded film was made of EMAA, the infrared medium wave emitter caused the extruded film to have a temperature of 310 ℃.
Example 2
Compared with the extrusion compounding equipment in the embodiment 1, the extrusion compounding equipment for the glue-free composite material with high peel strength of the embodiment is different in that an oven 14 is further arranged between the polarization treatment device and the compounding device. Wherein, whether the oven is started for use can be selected according to the actual requirements of the prepared composite material. In addition, along the direction of delivery of substrate, still can set up the glue spreader before the oven, make this equipment not only can be applied to no glue combined material preparation, also can be used to have glue combined material preparation, the user select according to the production needs can to make this equipment application range wider.
Example 3
The present embodiment is an extrusion compounding apparatus for a high peel strength glue-free composite material, as shown in fig. 3, and compared with embodiment 1, the difference is that an oven 14 is further provided between the polarization treatment device and the compounding device. Wherein, whether the oven is started for use can be selected according to the actual requirements of the prepared composite material. Along the direction of delivery of substrate, still can set up the glue spreader before the oven, make this equipment not only can be applied to no glue combined material preparation, also can be used to have glue combined material preparation, the user select according to the production needs can to make this equipment application range wider.
The extrusion compounding equipment further comprises an interlayer unreeling device 19, the interlayer unreeling device emits interlayer materials and sends the interlayer materials to the compounding device, and the base material, the extrusion film and the interlayer materials are compounded in the compounding device. The equipment with the structure can be suitable for processing composite materials with more layers, the two sides of the extrusion film subjected to activation treatment are respectively bonded with the base material and the interlayer material, the peeling strength is high, and in actual production, the bonding between the structures of all layers by adopting glue can be avoided.
Between the compounding device and the winding device, a trimming device 18, a thickness uniformity adjusting device 20 and a film cutting device 21 are further arranged to complete the subsequent treatment of the composite material. The trimming device, the thickness uniformity adjusting device and the film cutting device are all installed by adopting the existing corresponding devices.
Example 4
Compared with the embodiment 1, the extrusion compounding device for the high-peel-strength glue-free composite material of the embodiment is different in that, as shown in fig. 12, in a compounding area of a cooling roller 4 and a glue roller 5, an extruded film is compounded with a main unreeling substrate 3 and a secondary unreeling substrate 6 at the same time, and a three-layer composite film material composed of the main unreeling substrate, the extruded film and the secondary unreeling substrate is formed after film bonding.
Example 5
Compared with the extrusion compounding device in the embodiment 1, the extrusion compounding device for the glue-free composite material with high peel strength of the embodiment is different in that, as shown in fig. 13, a temperature measuring device is not arranged at an activation region, and a wave guide energy carrying device is positioned at one side of a film.
Example 6
Compared with the process of the embodiment 1, the process of the glue-free composite material with high peel strength is different in that a specific glue-free composite film is prepared. PET printing film, vacuum aluminum-plated PET film and film-blowing PE are used as base materials, and the glue-free composite process is adopted to prepare the PETPrintingThree-layer co-extrusion/VMPET/three-layer co-extrusion/film blowing PE30The nine-layer composite film of (2). Wherein the PETPrintingthe/VMPET could not be peeled off, and the peel strength of the VMPET/blown film PE was 1.8N/15 mm.
As mentioned above, the present invention can be better realized, and the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention; all equivalent changes and modifications made according to the present disclosure are intended to be covered by the scope of the claims of the present invention.
Claims (9)
1. The extrusion compounding equipment is characterized by comprising a substrate unreeling device, a polarization treatment device, a compounding device, a reeling device, a co-extrusion extruder and a carrier energy guide device, wherein the substrate unreeling device, the polarization treatment device, the compounding device and the reeling device are sequentially arranged along the conveying direction of a substrate; the base material discharged by the base material unreeling device is firstly subjected to surface polarization treatment by a polarization treatment device, an extruded film extruded by a co-extrusion extruder is firstly subjected to activation treatment by an overload wave guide energy device, then the base material and the extruded film are compounded in a compounding device, and finally the base material and the extruded film are conveyed to a reeling device for reeling;
the composite device is characterized in that a composite roller set is arranged in a composite area of the composite device, the composite roller set comprises a cooling roller and a rubber roller which are matched with each other, a composite area is formed between the cooling roller and the rubber roller, and an extrusion film is composited with a base material in the composite area.
2. The extrusion compounding apparatus of claim 1, wherein the waveguide energy carrying device comprises an infrared medium wave emitter and a shield, and the infrared medium wave emitter is mounted in the shield.
3. The extrusion compounding equipment of the high peel strength glue-free composite material according to claim 2, wherein in the waveguide energy-carrying device, the protective cover is made of stainless steel and is in a hollow rectangular parallelepiped shape, the inner side surface of the protective cover is a mirror surface, and the side of the protective cover facing the extrusion film is in a net structure; the infrared medium wave emitter is in a long tube shape and comprises at least two parallel emitting tubes, and the emitting tubes are arranged in parallel and installed in the protective cover.
4. The extrusion compounding equipment of the high-peel-strength glue-free composite material is characterized in that the waveguide energy-carrying device is provided with a mounting rack and is mounted on one side of a die head of a co-extrusion extruder through the mounting rack; the integral length of the waveguide energy-carrying device is greater than or equal to the length of the die head;
the number of the mounting frames is at least two, each mounting frame comprises a mounting lug and a connecting plate, one end of each mounting lug is connected with the protective cover, the other end of each mounting lug is connected with one end of each connecting plate, and the other end of each connecting plate is connected with a die head of the co-extrusion extruder;
the mounting lug is of an integrally formed L-shaped structure, one side edge of the mounting lug is provided with a mounting round hole, and the other side edge of the mounting lug is provided with a mounting long hole;
the connecting plate is of a flat structure, one end of the connecting plate is also provided with a mounting round hole, and the other end of the connecting plate is also provided with a mounting long hole.
5. The extrusion compounding device of the high peel strength glue-free composite material of claim 1, wherein a temperature measuring device is further disposed in the activation region, and the temperature measuring device and the carrier energy conducting device are located on two opposite sides of the extruded film.
6. The extrusion compounding device of the high peel strength glue-free composite material of claim 1, wherein the extrusion compounding device further comprises an interlayer unwinding device, the interlayer unwinding device discharges the interlayer material and sends the interlayer material to the compounding device, and the substrate, the extrusion film and the interlayer material are compounded in the compounding device.
7. The extrusion compounding device of the high-peel-strength glue-free composite material is characterized in that an oven is further arranged between the polarization treatment device and the compounding device.
8. An extrusion compounding process of a high-peel-strength glue-free composite material is characterized by comprising the following steps of:
(1) the substrate unwinding device discharges the substrate, and the substrate is subjected to surface polarization treatment by the polarization treatment device;
(2) extruding an extruded film from a die head by a co-extrusion extruder, and performing activation treatment on the extruded film in an activation region by a carrier energy guide device;
in the activation region, on one hand, the energy released by the carrier energy-conducting device is converted into heat energy, so that the temperature of the extruded film is increased, the activation reaction rate is further increased, and the activation degree of the surface of the extruded film is increased; on the other hand, infrared medium waves released by the carrier energy-conducting device excite molecular chains on the surface of the extruded film to break, more free radicals are generated, and chemical reaction is also promoted among the molecular chains, so that the peeling strength between the extruded film and the base material is improved, wherein the chemical reaction process is as follows:
RH→R·+H·，
R·+O2→ROO·，
ROO·+RH→ROOH+R·；
(3) simultaneously feeding the base material subjected to surface corona treatment and the extruded film subjected to activation treatment into a compounding device, and compounding in a compounding area in the compounding device;
(4) the formed composite material is sent out and wound by a winding device.
9. The extrusion compounding process of the high peel strength glue-free composite material according to claim 8, wherein in the step (2), the thickness of the extruded film is 2.5-40 μm, and the material of the extruded film is LDPE, PP, EVA, EAA or EMAA;
when the material of the extruded film is LDPE, the infrared medium wave emitter promotes the temperature of the extruded film to be 320 ℃;
when the material of the extruded film is PP or EAA, the temperature of the extruded film is promoted to be 280 ℃ by the infrared medium wave emitter;
when the material of the extruded film is EVA, the temperature of the extruded film is promoted to be 245 ℃ by the infrared medium wave emitter;
when the extruded film was made of EMAA, the infrared medium wave emitter caused the extruded film to have a temperature of 310 ℃.
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| CN201811313519.XA CN109454845B (en) | 2018-11-06 | 2018-11-06 | Extrusion compounding device and process for high-peel-strength glue-free composite material |
| JP2019020736A JP6752310B2 (en) | 2018-11-06 | 2019-02-07 | Extrusion laminating equipment and processes that allow the peeling strength of adhesive-free laminating materials to be improved. |
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| CN201811313519.XA CN109454845B (en) | 2018-11-06 | 2018-11-06 | Extrusion compounding device and process for high-peel-strength glue-free composite material |
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| CN113172978B (en) * | 2021-04-09 | 2021-12-03 | 江门市辉隆塑料机械有限公司 | Extrusion compounding equipment and process for battery packaging aluminum-plastic composite film |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102137895A (en) * | 2008-08-29 | 2011-07-27 | 乐金华奥斯株式会社 | Sheet composition and sheet produced from same |
| CN107263996A (en) * | 2016-04-06 | 2017-10-20 | 江苏奇科技有限公司 | Cold Chain Logistics case interior lining panel PP decorating films surface attaching process |
| CN209466691U (en) * | 2018-11-06 | 2019-10-08 | 江门市辉隆塑料机械有限公司 | High-peeling strength squeezes out equipment complex without glue |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3959546A (en) * | 1974-04-15 | 1976-05-25 | Schoeller Technical Papers Company | Textured photographic base paper process and product |
| JPS6051438B2 (en) * | 1979-12-21 | 1985-11-13 | 三井化学株式会社 | Method for manufacturing laminate and extrusion die used therein |
| JPS57102318A (en) * | 1980-12-16 | 1982-06-25 | Dainippon Printing Co Ltd | Production of laminate |
| JPH0746213B2 (en) * | 1991-10-25 | 1995-05-17 | 三菱製紙株式会社 | Method for producing photographic support |
| JP2683983B2 (en) * | 1992-05-25 | 1997-12-03 | 三菱化学株式会社 | Laminate capable of peeling paper and method for producing the same |
| JPH07125161A (en) * | 1993-11-08 | 1995-05-16 | Du Pont Mitsui Polychem Co Ltd | Production of laminate |
| KR20060013396A (en) * | 2003-05-14 | 2006-02-09 | 미쓰비시 쥬시 가부시끼가이샤 | Fluororesin laminated film and method for producing same |
| JP5386309B2 (en) * | 2009-11-09 | 2014-01-15 | 藤森工業株式会社 | LAMINATE MANUFACTURING METHOD, LAMINATE, AND PACKAGING CONTAINER USING THE SAME |
| JP2015116687A (en) * | 2013-12-17 | 2015-06-25 | 凸版印刷株式会社 | Plastic molding method and plastic molding device |
-
2018
- 2018-11-06 CN CN201811313519.XA patent/CN109454845B/en active Active
-
2019
- 2019-02-07 JP JP2019020736A patent/JP6752310B2/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102137895A (en) * | 2008-08-29 | 2011-07-27 | 乐金华奥斯株式会社 | Sheet composition and sheet produced from same |
| CN107263996A (en) * | 2016-04-06 | 2017-10-20 | 江苏奇科技有限公司 | Cold Chain Logistics case interior lining panel PP decorating films surface attaching process |
| CN209466691U (en) * | 2018-11-06 | 2019-10-08 | 江门市辉隆塑料机械有限公司 | High-peeling strength squeezes out equipment complex without glue |
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