CN113650331B - Reduce volatile hot melt adhesive film preparation facilities of VOC gas - Google Patents
Reduce volatile hot melt adhesive film preparation facilities of VOC gas Download PDFInfo
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- CN113650331B CN113650331B CN202111102976.6A CN202111102976A CN113650331B CN 113650331 B CN113650331 B CN 113650331B CN 202111102976 A CN202111102976 A CN 202111102976A CN 113650331 B CN113650331 B CN 113650331B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D7/00—Producing flat articles, e.g. films or sheets
- B29D7/01—Films or sheets
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Abstract
The invention discloses a hot melt adhesive film preparation device for reducing VOC gas volatilization, which comprises: the outer box body, the plurality of transmission roller sets and the plurality of supports; the support and the transmission roller set are sequentially arranged in a crossed and spaced mode along the transmission direction of the Teflon mesh belt, and the bottom end of the support is located below the transmission roller set, so that the Teflon mesh belt can sequentially pass through the gaps below the support and between the transmission roller set; along the transmission direction of the Teflon mesh belt, a spinning pump jet die orifice and a surface film jet seat are arranged on the first support, and high-temperature jet orifices are arranged on the other supports; the bottom of the transmission roller set is provided with a comprehensive temperature control plate; along the transmission direction of the Teflon mesh belt, the last transmission roller set is a vacuum adsorption roller set; the device has solved the problem that current hot melt adhesive membrane produced volatile toxic substance in the preparation process.
Description
Technical Field
The embodiment of the invention relates to the technical field of preparation of hot melt adhesive films, in particular to a preparation process and a device of a hot melt adhesive film for reducing VOC gas volatilization.
Background
The hot melt adhesive film is a film product which is prepared by rolling, casting, blowing and the like the hot melt adhesive and is easy for industrial production. In general, a hot melt adhesive film is prepared by using a highly saturated polyolefin material as a base material, and in order to increase the adhesive property of the hot melt adhesive film, an auxiliary agent which is beneficial to adhesion is usually added. However, most of the polyolefin materials and the bonding aids used in the hot melt adhesive films contain polar functional groups, and a large amount of harmful gases can be generated under the direct-contact high-temperature processing condition, so that the hot melt adhesive films do not meet the relevant standards of Volatile Organic Chemicals (VOCs) of automobile materials.
The preparation process of the hot melt adhesive film generally comprises the steps of melting and blending the polyolefin material and the auxiliary agent in a double screw extruder, extruding and granulating, and finally forming a film in film-making equipment, but in the melting and extruding processes, due to direct heating of a high-temperature environment, the materials are directly reacted to generate a large amount of toxic volatile gas due to the high-temperature environment, on one hand, the processing environment is influenced, on the other hand, the residual volatile substance is continuously volatilized due to oxidation of air and the like in later use of the product, and therefore harmful substances are continuously released.
The above problems cannot be essentially solved in the conventional preparation process, and considering that each component is a toxic volatile substance due to a side reaction easily occurring in a high-temperature oxidation environment, it is necessary to consider the influence of both the environmental atmosphere and the temperature on the product in the preparation process. However, in the preparation process of the hot melt adhesive film, high-temperature melting and extension are indispensable steps, so that volatile substances are inevitably generated to affect the environmental protection performance of the product.
Disclosure of Invention
Therefore, the invention provides a hot melt adhesive film preparation device for reducing VOC gas volatilization, and solves the problem that volatile toxic substances are generated in the preparation process of the existing hot melt adhesive film.
In order to achieve the above object, an embodiment of the present invention provides the following:
a hot melt adhesive film preparation device for reducing VOC gas volatilization comprises: the outer box body, the plurality of transmission roller sets and the plurality of supports; the support and the transmission roller set are sequentially arranged in a crossed and spaced mode along the transmission direction of the Teflon mesh belt, and the bottom end of the support is located below the transmission roller set, so that the Teflon mesh belt can sequentially pass through the gaps below the support and between the transmission roller set; along the transmission direction of the Teflon mesh belt, a spinning pump jet die orifice and a surface film jet seat are arranged on the first support, and high-temperature jet orifices are arranged on the other supports; the bottom of the transmission roller set is provided with a comprehensive temperature control plate; along the transmission direction of the Teflon mesh belt, the last transmission roller set is a vacuum adsorption roller set;
the spinning pump injection die is used for injecting a hot melt adhesive raw material to the upper surface of the Teflon mesh belt, and the surface film injection seat injects a modified raw material to the upper surface of the Teflon mesh belt; the high-temperature nozzle sprays high-temperature gas or high-temperature water mist to the upper surface of the Teflon mesh belt; the comprehensive temperature control plate is used for drying the Teflon mesh belt; the adsorption roller set is used for adsorbing the surface of the finally formed hot melt adhesive film.
Preferably, the driving roller group except the vacuum adsorption roller group comprises a hollow lower pressing roller and an upper pressing roller, the upper pressing roller is positioned above the hollow lower pressing roller, and the hollow lower pressing roller can uniformly and intermittently perform gas injection to the back side surface of the Teflon mesh belt.
Preferably, an air supply chamber is arranged inside the hollow lower pressing roller, an injection slit is arranged on the surface of the hollow lower pressing roller, and air in the air supply chamber can be injected to the back side of the teflon mesh belt through the injection slit.
Preferably, the end of the hollow lower press roll is provided with an air slip ring interface used for communicating the air supply chamber with an air supply source; the number of the injection slits is plural, and the injection slits are symmetrically arranged around the axial direction of the hollow lower press roll.
Preferably, the vacuum adsorption roller set comprises a first negative pressure roller for carrying out air adsorption on the back side surface of the hot melt adhesive film on the Teflon mesh belt and a second negative pressure roller for carrying out contact air adsorption on the surface of the hot melt adhesive film on the Teflon mesh belt, wherein a thin silicon adhesive layer is arranged on the surface of the first negative pressure roller, driven rollers are arranged on the first negative pressure roller and the second negative pressure roller in a matched mode, and air suction gaps are formed in the surfaces of the first negative pressure roller and the second negative pressure roller.
Preferably, the integrated temperature control plate adopts a hot air or cold air mode to dry the Teflon mesh belt.
Preferably, one side of the comprehensive temperature control plate is a drying plate, the other side of the comprehensive temperature control plate is provided with a cooling plate and an airflow cavity, and a heat insulation layer is arranged between the cooling plate and the airflow cavity and between the cooling plate and the drying plate; the surface of the integrated temperature control plate is provided with a flow suction slot so that gas can be sucked into the gas flow chamber and discharged to the outside of the outer case.
Preferably, the drying plate has a heating function and can eject gas at 50-60 ℃; the cooling plate is communicated with an exogenous refrigerant, and the surface temperature of the cooling plate is-20 ℃ to-15 ℃; the temperature of the high-temperature gas or the high-temperature water mist sprayed out of the high-temperature nozzle is 40-50 ℃.
Preferably, the pressure of the gas sprayed out of the spraying slot is 150-200Kpa, the transmission rate of the Teflon mesh belt is 1.5-2m/s, and the average thickness of the hot melt adhesive film is 0.10-0.20 mm.
Preferably, at least two coating seams are arranged on the surface film spraying seat, the included angle between the surface film spraying seat and the Teflon mesh belt is 10-15 degrees, and the distance between the adjacent coating seams is 0.5-1 cm.
The embodiment of the invention has the following advantages:
1) firstly, the teflon mesh belt is conveyed forwards through the support and the transmission roller set, hot melt adhesive raw materials are sprayed to the upper surface of the teflon mesh belt through a spray die orifice of a spinning pump in the conveying process, as shown in fig. 1, the teflon mesh belt is in a V shape below the support, therefore, the hot melt adhesive raw materials are sprayed for multiple times and are overlapped layer by layer under the action of gravity, and finally a hot melt adhesive film is formed on the surface of the teflon mesh belt.
2) The upper surface of the Teflon mesh belt is heated ceaselessly through the high-temperature nozzle, so that VOC gas in the hot melt adhesive raw material can be discharged in real time, the discharge amount of the VOC gas in the processing process is further improved, and the discharge amount of the VOC gas in the using process is reduced.
3) The device can be used for carrying out centralized treatment on the VOC gas, so that the production process can meet the environmental protection requirement.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.
FIG. 1 is a schematic view of the construction of a hot melt adhesive film production apparatus provided in an embodiment of the present invention;
FIG. 2 is a schematic structural view of a hollow lower roll according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a comprehensive temperature control plate according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of the first negative pressure roller or the second negative pressure roller in the embodiment of the present invention.
In the figure:
1-outer box body; 2-a drive roller set; 3-a thin layer of silica gel; 4-a scaffold; 5-Teflon mesh belt; 6-spraying a die orifice by a spinning pump; 7-high temperature nozzle; 8-pellicle spraying base; 9-comprehensive temperature control plate; 10-a vacuum adsorption roller set; 11-a first negative pressure roller; 12-a second negative pressure roller; 13-a driven roller; 14-a suction slot; 15-drying the plate; 16-a cooling plate; 17-an airflow chamber; 18-a thermal insulation layer; 19-suction flow slot; 20-laminating seams;
201-hollow lower press roll; 202-upper press roll; 203-jet slot; 204-air slip ring interface.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a hot melt adhesive film preparation device for reducing VOC gas volatilization, which comprises the following components in percentage by weight as shown in figures 1-4: the device comprises an outer box 1, a plurality of transmission roller sets 2 and a plurality of brackets 4; along the conveying direction of the Teflon mesh belt 5, the support 4 and the drive roller group 2 are sequentially arranged at intervals in a crossed manner, and the bottom end of the support 4 is positioned below the drive roller group 2, so that the Teflon mesh belt 5 can sequentially pass through the middle gap of the drive roller group 2 below the support 4; along the transmission direction of the Teflon mesh belt 5, a spinning pump jet die orifice 6 and a surface film jet seat 8 are arranged on the first support 4, and high-temperature jet orifices 7 are arranged on the other supports 4; the bottom of the transmission roller group 2 is provided with a comprehensive temperature control plate 9; along the transmission direction of the Teflon mesh belt 5, the last driving roller set 2 is a vacuum adsorption roller set 10;
the spinning pump injection die orifice 6 is used for injecting a hot melt adhesive raw material to the upper surface of the Teflon mesh belt 5, and the surface film injection seat 8 is used for injecting a modified raw material to the upper surface of the Teflon mesh belt 5; the high-temperature nozzle 7 sprays high-temperature gas or high-temperature water mist to the upper surface of the Teflon mesh belt 5; the comprehensive temperature control plate 9 is used for drying the Teflon mesh belt 5; the adsorption roller set 10 is used for adsorbing the surface of the finally formed hot melt adhesive film.
In the present invention, the structure of the drive roller group 2 is not particularly limited, but in order to further improve the jitter frequency during the transportation of the teflon mesh belt 5, it is preferable that the drive roller group 2 other than the vacuum adsorption roller group 10 includes a hollow lower press roller 201 and an upper press roller 202, the upper press roller 202 is located above the hollow lower press roller 201, and the hollow lower press roller 201 can perform the air injection uniformly and intermittently to the back side of the teflon mesh belt 5.
On this basis, through the jet-propelled of cavity bottom roll 201, can make teflon guipure 5 produces the shake in transmission course, from this, the layer upon layer of the hot melt adhesive raw materials of being convenient for more superposes to greatly improve the emission rate of VOC gas.
In the above embodiment, the specific decoupling strands of the hollow lower pressure roller 201 can be selected within a wide range, but in order to further improve the shaking effect of the teflon mesh belt 5, it is preferable that an air supply chamber is provided inside the hollow lower pressure roller 201, the surface of the hollow lower pressure roller 201 is provided with an injection slit 203, and air in the air supply chamber can be injected to the back side of the teflon mesh belt 5 through the injection slit 203. Therefore, the gas can directly trigger the shaking effect of the Teflon mesh belt 5 after flowing from the jet slits 203, and the shaking effect of the Teflon mesh belt 5 can be further controlled by controlling the gas jet pressure and frequency of the jet slits 203.
Based on the above, in order to ensure that the hollow lower pressure roller 201 can stably eject gas, preferably, an end of the hollow lower pressure roller 201 is provided with an air slip ring interface 204, and the air slip ring interface 204 is used for communicating the gas supply chamber with a gas supply source; the number of the injection slits 203 is plural, and they are symmetrically arranged around the axial direction of the hollow lower press roll 201.
In the present invention, the specific structure of the vacuum adsorption roller set 10 may also be selected in a wide range, but in order to further improve the contact type air adsorption of the vacuum adsorption roller set 10 on the surface of the hot melt adhesive film, so as to further remove the VOC on the surface of the hot melt adhesive film, preferably, the vacuum adsorption roller set 10 includes a first negative pressure roller 11 for performing air adsorption on the back side surface of the hot melt adhesive film on the teflon mesh belt 5, and a second negative pressure roller 12 for performing contact type air adsorption on the surface of the hot melt adhesive film on the teflon mesh belt, the surface of the first negative pressure roller 11 is provided with a thin silicon layer 3, the first negative pressure roller 11 and the second negative pressure roller 12 are both provided with a driven roller 13 in a matching manner, and the surfaces of the first negative pressure roller 11 and the second negative pressure roller 12 are provided with air suction slots 14.
In the above scheme, through the vacuum adsorption of first negative pressure roller 11, second negative pressure roller 12 to further get rid of the VOC on hot melt adhesive film surface, it discharges to the device outside to have avoided VOC, has improved the device's feature of environmental protection.
In the present invention, the drying manner of the integrated temperature control plate 9 has a plurality of manners, and in order to enable the integrated temperature control plate 9 to adapt to different operating environments, preferably, the integrated temperature control plate 9 dries the teflon mesh belt 5 by using a hot air or cold air manner. When the high-temperature nozzles 7 spray high-temperature water mist to the upper surface of the Teflon mesh belt 5, the water mist can be taken away in a hot air mode, so that the drying effect is achieved; when the high-temperature nozzles 7 spray high-temperature gas to the upper surface of the Teflon mesh belt 5, the comprehensive temperature control plate 9 can play a role in cooling by adopting a mode of spraying cold air, and at the moment, drying is not needed.
In the present invention, the specific structure of the integrated temperature control plate 9 can be selected in a wide range, but in order to enable the integrated temperature control plate 9 to adapt to different operating environments, it is preferable that one side of the integrated temperature control plate 9 is a drying plate 15, the other side of the integrated temperature control plate 9 is provided with a cooling plate 16 and an airflow cavity 17, and a temperature insulating layer 18 is arranged between the cooling plate 16 and the airflow cavity 17 and the drying plate 15; the surface of the integrated temperature control plate 9 is provided with a flow suction slit 19 so that gas can be sucked into the gas flow chamber 17 and discharged to the outside of the outer case 1.
In addition to the above embodiments, in order to further realize precise drying, it is preferable that the drying plate 15 has a heating function, and can eject gas at 50-60 ℃ (of course, the temperature of the gas can be adjusted, and can be determined according to specific operations, such as 15-20 ℃ or 25-30 ℃); the cooling plate 16 is communicated with an exogenous refrigerant, and the temperature of the surface of the cooling plate 16 is-20 ℃ to-15 ℃; the temperature of the high-temperature gas or the high-temperature water mist sprayed out of the high-temperature nozzle 7 is 40-50 ℃.
On the basis of the above embodiments, in order to further reduce the volatilization of the VOC gas during the use of the hot melt adhesive film, preferably, the pressure of the gas ejected from the ejection slit 203 is 150-.
Finally, preferably, at least two coating seams 20 are arranged on the surface film spraying seat 8, the included angle between the surface film spraying seat 8 and the Teflon mesh belt is 10-15 degrees, and the distance between the adjacent coating seams 20 is 0.5-1 cm.
The invention is further illustrated by the following examples, wherein the hot melt adhesive comprises the following raw materials in percentage by weight of 100: 30: 28: 1.9: 2.5 of EVA, terpene resin, paraffin, nucleating agent (ethylene propylene rubber) and antioxidant (antioxidant 1010), wherein the EVA is a product sold by Honghong plastics technology Co., Ltd, Dongguan city, and the terpene resin is a product sold by Henan Chang agricultural chemical industry Co., Ltd. The modified raw material is polytetrafluoroethylene from Tianyuxiang micro powder material factory in Shenyang.
The following examples and comparative examples were carried out on the apparatus shown in FIGS. 1-4.
Example 1
Conveying a Teflon mesh belt 5 at the speed of 1.8m/s, starting a spinning pump to spray a hot melt adhesive raw material through a spray die orifice 6, spraying a modified raw material through a surface film spray seat 8, wherein the dosage ratio of the hot melt adhesive raw material to the modified raw material is 1: 0.1.
starting a high-temperature nozzle 7, spraying air at 45 ℃ (the pressure of the sprayed fluid is 250Kpa) to the upper surface of the Teflon mesh belt 5, starting a spraying slit 203, and the pressure of the air in the spraying slit 203 is 180 Kpa; then the drying plate 15 is started to spray air at 10 ℃, the surface temperature of the cooling plate 16 is-18 ℃, and simultaneously the airflow cavity 17 is started to discharge the air in the device to the outside of the device.
Example 2
Conveying a Teflon mesh belt 5 at the speed of 1.5m/s, starting a spinning pump to spray a hot melt adhesive raw material through a spray die orifice 6, spraying a modified raw material through a surface film spray seat 8, wherein the dosage ratio of the hot melt adhesive raw material to the modified raw material is 1: 0.1.
starting a high-temperature nozzle 7, spraying air at 40 ℃ (the pressure of the sprayed fluid is 200Kpa) to the upper surface of the Teflon mesh belt 5, starting a spraying slit 203, and the pressure of the air in the spraying slit 203 is 150 Kpa; then the drying plate 15 is started to spray air at 5 ℃, the surface temperature of the cooling plate 16 is-20 ℃, and simultaneously the airflow cavity 17 is started to discharge the air in the device to the outside of the device.
Example 3
Conveying a Teflon mesh belt 5 at the speed of 2m/s, starting a spinning pump injection die orifice 6 to inject a hot melt adhesive raw material, and spraying a modified raw material by a surface film spraying seat 8, wherein the dosage ratio of the hot melt adhesive raw material to the modified raw material is 1: 0.1.
starting a high-temperature nozzle 7, spraying air at 50 ℃ (the pressure of the sprayed fluid is 300Kpa) to the upper surface of the Teflon mesh belt 5, starting a spraying slit 203, and the pressure of the air in the spraying slit 203 is 200 Kpa; then the drying plate 15 is started to spray air at 15 ℃, the surface temperature of the cooling plate 16 is-15 ℃, and simultaneously the airflow cavity 17 is started to discharge the air in the device to the outside of the device.
Comparative example 1
The procedure is followed as in example 1, except that the high temperature nozzle 7 is not activated.
Detection example 1
The products prepared in the above examples were left to stand in a closed environment for 24 hours, and then whether or not VOC was generated was detected by a VOC detector, which revealed that the products of examples 1 to 3 had no VOC emission, while the product of comparative example 1 had VOC emission.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (7)
1. The utility model provides a reduce volatile hot melt adhesive film preparation facilities of VOC gas, its characterized in that includes: the device comprises an outer box body (1), a plurality of transmission roller sets (2) and a plurality of supports (4); the support (4) and the transmission roller group (2) are sequentially arranged at intervals in a crossed mode along the conveying direction of the Teflon mesh belt (5), and the bottom end of the support (4) is located below the transmission roller group (2), so that the Teflon mesh belt (5) can sequentially pass through the middle gap of the transmission roller group (2) below the support (4); along the transmission direction of the Teflon mesh belt (5), a spinning pump jet die orifice (6) and a surface film jet seat (8) are arranged on the first support (4), and high-temperature nozzles (7) are arranged on the other supports (4); the bottom of the transmission roller group (2) is provided with a comprehensive temperature control plate (9); along the transmission direction of the Teflon mesh belt (5), the last driving roller set (2) is a vacuum adsorption roller set (10);
the spinning pump injection die orifice (6) is used for injecting hot melt adhesive raw materials to the upper surface of the Teflon mesh belt (5), and the surface film injection seat (8) is used for injecting modified raw materials to the upper surface of the Teflon mesh belt (5); the high-temperature nozzle (7) sprays high-temperature gas or high-temperature water mist to the upper surface of the Teflon mesh belt (5); the comprehensive temperature control plate (9) is used for drying the Teflon mesh belt (5); the adsorption roller set (10) is used for adsorbing the surface of the finally formed hot melt adhesive film;
the transmission roller group (2) except the vacuum adsorption roller group (10) comprises a hollow lower pressing roller (201) and an upper pressing roller (202), the upper pressing roller (202) is positioned above the hollow lower pressing roller (201), and the hollow lower pressing roller (201) can perform gas injection to the back side surface of the Teflon mesh belt (5) uniformly and intermittently;
an air supply chamber is arranged inside the hollow lower pressing roller (201), an injection slit (203) is formed in the surface of the hollow lower pressing roller (201), and air in the air supply chamber can be injected to the back side face of the Teflon mesh belt (5) through the injection slit (203);
the end part of the hollow lower pressing roll (201) is provided with an air slip ring interface (204), and the air slip ring interface (204) is used for communicating the air supply chamber with an air supply source; the number of the injection slits (203) is plural, and the injection slits are symmetrically arranged around the axial direction of the hollow lower press roll (201).
2. The hot melt adhesive film preparation device for reducing VOC gas volatilization according to claim 1, wherein the vacuum adsorption roller set (10) comprises a first negative pressure roller (11) for performing air adsorption on the back side surface of a hot melt adhesive film on a Teflon mesh belt (5) and a second negative pressure roller (12) for performing contact air adsorption on the surface of the hot melt adhesive film on the Teflon mesh belt, a thin silicon adhesive layer (3) is arranged on the surface of the first negative pressure roller (11), driven rollers (13) are arranged on the first negative pressure roller (11) and the second negative pressure roller (12) in a matched manner, and suction slots (14) are formed in the surfaces of the first negative pressure roller (11) and the second negative pressure roller (12).
3. The apparatus for preparing the hot melt adhesive film to reduce the volatilization of the VOC gas as claimed in claim 1, wherein the integrated temperature control plate (9) is used for drying the Teflon mesh belt (5) by means of hot air or cold air.
4. A hot melt adhesive film preparation device for reducing Volatile Organic Compounds (VOC) gas emission according to claim 3, wherein one side of the integrated temperature control plate (9) is a drying plate (15), the other side of the integrated temperature control plate (9) is provided with a cooling plate (16) and an airflow cavity (17), and a thermal insulation layer (18) is arranged between the cooling plate (16) and the airflow cavity (17) and the drying plate (15); the surface of the integrated temperature control plate (9) is provided with a flow suction slit (19) so that gas can be sucked into the gas flow chamber (17) and discharged to the outside of the outer case (1).
5. A hot melt adhesive film production device for reducing VOC gas volatilization according to claim 4, wherein the drying plate (15) has a heating function and can eject gas at 50-60 ℃; the cooling plate (16) is communicated with an exogenous refrigerant, and the surface of the cooling plate (16) is at a temperature of-20 ℃ to-15 ℃; the temperature of the high-temperature gas or the high-temperature water mist sprayed out by the high-temperature nozzle (7) is 40-50 ℃.
6. The apparatus as claimed in claim 1, wherein the pressure of the gas from the injection slot (203) is 150Kpa and 200Kpa, the transmission rate of the teflon mesh belt (5) is 1.5-2m/s, and the average thickness of the hot melt adhesive film is 0.10-0.20 mm.
7. The hot melt adhesive film preparation device for reducing VOC gas volatilization according to claim 2, characterized in that at least two coating seams (20) are arranged on the surface film spraying seat (8), the included angle between the surface film spraying seat (8) and the Teflon mesh belt is 10-15 degrees, and the distance between the adjacent coating seams (20) is 0.5-1 cm.
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| CN202010991568.XA CN112373075A (en) | 2020-09-19 | 2020-09-19 | Preparation process and device of hot melt adhesive film without VOC gas volatilization |
| CN202010991568X | 2020-09-19 |
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| CN113650331A CN113650331A (en) | 2021-11-16 |
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| CN202111102976.6A Active CN113650331B (en) | 2020-09-19 | 2021-09-18 | Reduce volatile hot melt adhesive film preparation facilities of VOC gas |
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| DE3028993A1 (en) * | 1979-08-02 | 1981-02-19 | Celanese Corp | FILLED EXTRUDED ENDLESS THERMOPLASTIC FLAT MATERIALS AND THEIR PRODUCTION |
| US6824829B2 (en) * | 2002-08-23 | 2004-11-30 | Acupac Packaging, Inc. | Process for manufacturing thin film strips |
| JP5635414B2 (en) * | 2008-12-24 | 2014-12-03 | 株式会社クラレ | Leather-like sheet manufacturing method |
| CN102061135B (en) * | 2010-10-26 | 2014-07-23 | 东莞新能源科技有限公司 | Power battery laminated film and film laminating process thereof |
| CN202200628U (en) * | 2011-07-07 | 2012-04-25 | 刘渠 | Production line of movable film hard bubble sandwich insulation board |
| CN107128051B (en) * | 2017-06-21 | 2023-02-28 | 深圳市三上高分子环保新材料股份有限公司 | Precoating film with suede effect, manufacturing method thereof and equipment system |
| CN109363296A (en) * | 2018-11-16 | 2019-02-22 | 浙江飞越新材料有限公司 | A kind of hot melt adhesive port is precious and its production method |
| CN209702641U (en) * | 2019-04-01 | 2019-11-29 | 广东莱尔新材料科技股份有限公司 | A kind of connection wire of the Waterborne hot-melt adhesive film of the low VOC of band |
| CN210617088U (en) * | 2019-09-30 | 2020-05-26 | 安徽创研新材料有限公司 | Film die pressing mechanism for producing hot melt adhesive film |
| CN111619179A (en) * | 2020-05-20 | 2020-09-04 | 江苏大海塑料股份有限公司 | High-strength environment-friendly protective film and preparation method thereof |
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Denomination of invention: A device for preparing Hot-melt adhesive film to reduce VOC gas volatilization Effective date of registration: 20230530 Granted publication date: 20220802 Pledgee: Jiangsu Rugao Rural Commercial Bank Co.,Ltd. Longhe Branch Pledgor: JIANGSU HUIFENG ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. Registration number: Y2023980042302 |
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