CN215551623U - High corrosion-resistant nano film-coated plate - Google Patents
High corrosion-resistant nano film-coated plate Download PDFInfo
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- CN215551623U CN215551623U CN202120793728.XU CN202120793728U CN215551623U CN 215551623 U CN215551623 U CN 215551623U CN 202120793728 U CN202120793728 U CN 202120793728U CN 215551623 U CN215551623 U CN 215551623U
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Abstract
The utility model discloses a high-corrosion-resistance nano film-coated plate, which comprises a nano polymer layer, a fine coating, a bottom coating, a substrate layer, a polyester anticorrosive layer and a second anticorrosive layer which are sequentially arranged from top to bottom; the nanometer macromolecule layer is a three-layer co-extrusion PE film, and in the high corrosion-resistant nanometer film-coated plate: the substrate layer is a hot-dip pure zinc substrate, the corrosion resistance is between that of electrogalvanizing and aluminum-zinc plating, and the corrosion resistance of the conventional film-coated plate is further improved; the nano high polymer layer is a high-density PE film produced by a three-layer co-extrusion process, so that the integral corrosion resistance of the material is improved, and meanwhile, the nano high polymer layer is tightly connected through a glue layer; the total coating thickness is controlled to be 28 +/-2 mu m when glue of the fine coating and the bottom coating is coated, and the reliability of the combination of the nanometer polymer film layer and the substrate can be further realized.
Description
Technical Field
The utility model relates to the field of film-coated plates, in particular to a high-corrosion-resistance nano film-coated plate.
Background
The film-coated plate is formed by coating a film on a metal substrate, and compounding the film by using a high-brightness film or a colorful film and coating a special adhesive on the plate surface.
With the wide application of the film coating plate, the requirements on the film coating plate are higher and higher. In livestock breeding buildings, due to the fact that humidity is high, various alkaline and high-oxidizing disinfectants are used, and bacteria decompose excrement of cattle, pigs or other poultry into high corrosivity such as amines and acids, conventional film-coated plates cannot achieve corrosion resistance, and therefore need to be replaced frequently, and further practicability of the film-coated plates is affected.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects, the utility model provides a high-corrosion-resistance nano film-coated plate.
The utility model realizes the purpose through the following technical scheme:
a high corrosion-resistant nano film-coated plate comprises a nano polymer layer, a fine coating, a bottom coating, a substrate layer, a polyester anticorrosive layer and a second anticorrosive layer which are sequentially arranged from top to bottom;
the nanometer high molecular layer comprises a glue layer and a PE film layer, and the PE film layer is a three-layer co-extrusion PE film;
the glue layer is prepared from polyester polyol crude glue, a curing agent and ethyl acetate.
Preferably, the substrate layer is a hot-dip galvanized substrate.
Preferably, the sum of the thicknesses of the fine coating layer and the base coating layer is 28 ± 2um, and both the fine coating layer and the base coating layer are composed of a saturated polyester resin.
Preferably, the polyester anticorrosive layer and the second anticorrosive layer are both made of modified epoxy resin.
The utility model has the beneficial effects that: in the high corrosion-resistant nanometer film-coated plate:
1. the substrate layer is a hot-dip pure zinc substrate, the corrosion resistance is between that of electrogalvanizing and aluminum-zinc plating, and the corrosion resistance of the conventional film-coated plate is further improved;
2. the nano high polymer layer is a high-density PE film produced by a three-layer co-extrusion process, so that the integral corrosion resistance of the material is improved, and meanwhile, the nano high polymer layer is tightly connected through a glue layer;
3. the total coating thickness is controlled to be 28 +/-2 mu m when glue of the fine coating and the bottom coating is coated, and the reliability of the combination of the nanometer polymer film layer and the substrate can be further realized.
Drawings
The utility model will now be described, by way of example, with reference to the accompanying drawings, in which:
fig. 1 is a schematic structural view of the present invention.
In the figure: 1. the coating comprises a substrate layer, 2 a bottom coating, 3 a fine coating, 4 a nano polymer layer, 5 a polyester anticorrosive layer and 6 a second anticorrosive layer.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
As shown in fig. 1, a high corrosion resistant nano coated plate comprises a nano polymer layer 4, a fine coating layer 3, a primer layer 2, a substrate layer 1, a polyester anticorrosive layer 5 and a second anticorrosive layer 6 which are arranged in sequence from top to bottom;
the nano high molecular layer 4 comprises a glue layer and a PE film layer, wherein the PE film layer is a three-layer co-extrusion PE film;
the glue layer is prepared from polyester polyol crude glue, a curing agent and ethyl acetate.
Specifically, the substrate layer 1 is a hot-dip galvanized substrate.
Specifically, the sum of the thicknesses of the fine coating layer 3 and the bottom coating layer 2 is 28 +/-2 um, and the fine coating layer 3 and the bottom coating layer 2 are both made of saturated polyester resin.
Specifically, the polyester anticorrosive layer 5 and the second anticorrosive layer 6 are both made of modified epoxy resin.
In the high-corrosion-resistance nano film-coated plate, a hot-dip pure zinc substrate is adopted, and the zinc content of the hot-dip pure zinc substrate is over 97 percent. The cold-hard plate is subjected to annealing and then is galvanized, the thickness of a zinc layer is controlled by an air knife, molten zinc is cooled to form spangles, the zinc layer is generally 60-275 g/square meter, and the corrosion resistance is between that of electrogalvanizing and aluminum-zinc plating. Nanometer polymer layer 4 is the high density PE membrane through three-layer coextrusion technology production in fact, promotes the holistic anticorrosive ability of material, and nanometer polymer film layer itself is fine and close, and the void fraction is low has good corrosion resisting property simultaneously, adheres to material surface back, has blockked factors such as acid, alkali, steam in the environment and to the direct influence of material, promotes nanometer anticorrosive board's life.
When glue of the fine coating 3 and the bottom coating 2 is coated, the total coating thickness is controlled to be 28 +/-2 microns, the binding force between the nano polymer film layer and the base material is influenced when the thickness is too low, and the surface appearance of the film layer is influenced when the thickness is too high, so that the film layer cannot be smooth and flat; during the production process, the coating thickness deviation is easy to occur when the substrate is subjected to roll change, and the thickness is measured by a coating thickness meter every 20min, wherein the fine coating 3 adopts a saturated polyester resin top coating mode, and the bottom coating 2 adopts a saturated polyester resin bottom coating mode; the laminating temperature is 160 +/-2 ℃, the curing degree of the glue is influenced by too low temperature, and the binding force between the film layer and the base material is reduced; the glue with too high temperature is easy to be cured excessively, so that the film layer cannot be coated on the surface of the base material; in the production process, the total drying tunnel temperature can float at 5 ℃, and an infrared thermometer is required to measure the temperature every 30 min; the film covering pressure is 0.6 kg; the film covering roller is controlled to be 60 +/-5 ℃ (the film covering roller has low temperature, the appearance effect of the surface of the film layer is influenced, the film layer is easy to retract due to overhigh temperature, a client cannot normally use the film layer in the construction process, the temperature of the film covering roller is increased by 10 ℃ in the production process, the temperature of the film covering roller needs to be displayed, and cold water is introduced into the film covering roller in advance for cooling when overtemperature early warning is found.
The polyester anticorrosive coating 5 adopts a modified epoxy resin prime coat mode, and the second anticorrosive coating 6 adopts a modified epoxy resin surface coat mode.
The whole production process of the nano film-coated plate comprises the following steps:
the first step is as follows: preparing glue: firstly, stirring raw polyester polyol rubber at a constant temperature and a high speed for 10-15 min; then adding a curing agent and ethyl acetate, and stirring at a constant temperature and a high speed for 10-15 min until the glue is uniformly stirred, so that the on-machine viscosity of the glue is 28 +/-2 s;
the second step is that: double-sided coating: carrying out double-sided coating on a base material, sequentially carrying out primer coating 2 and finish coating 3 on the front surface of the base material, sequentially carrying out polyester anticorrosive coating 5 and second anticorrosive coating 6 on the back surface of the base material, preparing paint of the finish coating 3 and the primer coating 2 before double-sided coating, and firstly carrying out constant-temperature high-speed stirring on saturated polyester resin virgin rubber for 10-15 min at a stirring speed of 2850 r/min; adding a trimethylbenzene mixed solution, stirring at a constant temperature and a high speed for 15-20 min, controlling the on-machine viscosity of the paint of the fine coating layer 3 and the paint of the bottom coating layer 2 to be 60 +/-5 s, preparing the paint of the polyester anticorrosive layer 5, and firstly stirring the modified epoxy resin crude rubber at a constant temperature and a high speed for 10-15 min; adding a trimethylbenzene mixed solution, stirring at a constant temperature and a high speed for 15-20 min, and controlling the on-machine viscosity to be 60 +/-5 s; preparing a second anticorrosive layer 6 paint, and firstly stirring the modified epoxy resin virgin rubber at a constant temperature and a high speed for 10-15 min; adding the S-100 mixed solution and the fluorine-containing additive, stirring at a constant temperature and a high speed for 15-20 min, controlling the on-machine viscosity to be 60 +/-5S, adopting a saturated polyester resin bottom coating mode for the bottom coating layer 2, adopting a saturated polyester resin surface coating mode for the fine coating layer 3, adopting a modified epoxy resin bottom coating mode for the polyester anticorrosive layer 5, adopting a modified epoxy resin surface coating mode for the second anticorrosive layer 6, placing the second anticorrosive layer on an uncoiling and unreeling shaft, and introducing the base material into a pretreatment cleaning tank through a head leading tape;
the third step: hot air drying: cleaning in a pre-treatment cleaning tank, drying by hot air at 60 +/-5 ℃, and entering a coating chamber;
the fourth step: glue coating: uniformly coating the prepared polyester polyol solution on the surface of a base material by a coating roller in a coating chamber, controlling the thickness of a wet film to be 30 +/-2 mu m, monitoring whether the thickness of the wet film is within a standard range every 10min by using a wet film thickness gauge, detecting the on-machine viscosity every 20min by using a volt cup, and controlling the on-machine viscosity to be within a range of 28 +/-2 s; meanwhile, a charging tray vibration pump is started to prevent the problem of uneven coating caused by settlement of polyester polyol solution in the charging tray;
the fifth step: glue solidification: after coating, the polyester polyol glue enters a drying tunnel, the temperature of the drying tunnel is set to be 200 +/-5 ℃, and the curing time is 15 +/-1S, so that the polyester polyol glue is cured;
and a sixth step: and (3) coating of a nano polymer layer 4: laminating a nano polymer film on the front surface of a base material in a color film chamber through a laminating roller, wherein the laminating temperature is 160 +/-2 ℃, and the temperature of the laminating roller is controlled at 60 +/-5 ℃;
the seventh step: cooling and removing moisture: in a protective film chamber, cooling the film-coated plate by using circulating water at 15 +/-5 ℃, further cooling by air cooling, and simultaneously blowing dry residual moisture on the surface of the film-coated plate;
eighth step: winding: the dried film covering plate is wound into a roll shape through a winding shaft;
the ninth step: curing: and (3) putting the rolled film-coated plate into a curing chamber for curing, wherein the curing time is 48 hours, and the temperature of the curing chamber is 70 ℃.
In light of the above, it is clear that many changes and modifications can be made by the workers in the field without departing from the spirit and scope of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (2)
1. A high corrosion-resistant nanometer tectorial membrane board which characterized in that: comprises a nano polymer layer, a fine coating, a bottom coating, a substrate layer, a polyester anticorrosive layer and a second anticorrosive layer which are arranged from top to bottom in sequence;
the nanometer high molecular layer comprises a glue layer and a PE film layer, and the PE film layer is a three-layer co-extrusion PE film;
the substrate layer is a hot-dip pure zinc substrate;
the sum of the thicknesses of the fine coating layer and the bottom coating layer is 28 +/-2 mu m, and the fine coating layer and the bottom coating layer are both made of saturated polyester resin.
2. The high-corrosion-resistance nano-film coated plate according to claim 1, wherein: the polyester anticorrosive layer and the second anticorrosive layer are both made of modified epoxy resin.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120793728.XU CN215551623U (en) | 2021-04-16 | 2021-04-16 | High corrosion-resistant nano film-coated plate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120793728.XU CN215551623U (en) | 2021-04-16 | 2021-04-16 | High corrosion-resistant nano film-coated plate |
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| CN215551623U true CN215551623U (en) | 2022-01-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024109437A1 (en) * | 2022-11-24 | 2024-05-30 | 江苏凯伦建材股份有限公司 | Multifunctional film-coated plate and preparation method therefor, and anti-corrosion bottom film |
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2021
- 2021-04-16 CN CN202120793728.XU patent/CN215551623U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024109437A1 (en) * | 2022-11-24 | 2024-05-30 | 江苏凯伦建材股份有限公司 | Multifunctional film-coated plate and preparation method therefor, and anti-corrosion bottom film |
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