Preparation method of high-adhesion environment-friendly polymer packaging material

Abstract

The invention relates to the technical field of packaging materials, in particular to a preparation method of a high-adhesion environment-friendly polymer packaging material, which comprises the following steps: heating a PET (Polyethylene Terephthalate) coiled material and stretching according to a first stretching ratio to obtain a base material; grinding the single surface of the base material, and cleaning and drying the base material after grinding; alternately coating a first colloid and a second colloid on the grinding surface at equal intervals; the coated base material is heated and stretched in the coating direction according to a second stretching ratio to obtain a coated strip; judging whether the preparation of the coated strip meets a preset standard or not according to the surface roughness; the coating strip meeting the preset standard is subjected to curing treatment; judging whether the preparation of the cured coating strip meets a preset standard or not according to the adhesion performance evaluation value; and the adhesive coating surface of the cured coating strip meeting the preset standard is covered with a polytetrafluoroethylene film to complete preparation of the packaging material, and the adhesive property of the packaging material is remarkably improved.

Description

Technical Field

[0001] The invention relates to the field of packaging materials, and in particular to a method for preparing a highly adhesive environmentally friendly polymer packaging material. Background Art

[0002] A highly adhesive environmentally friendly polymer packaging material, made with a special environmentally friendly polymer formula and advanced production technology, with excellent adhesive properties. Its bonding strength is much higher than that of traditional packaging materials, ensuring that packaged items are not easily dropped or damaged during transportation and storage. This material can provide stable bonding effects for packaging materials of different materials and in different environments, showing a wide range of applicability.

[0003] Chinese patent publication number: CN114716931A, discloses a process for preparing adhesive tape, which includes the following steps: S1, preparing a substrate; S2, preparing an adhesive layer ingredient; S3, uniformly coating the adhesive layer ingredient on one side of the substrate to prepare the adhesive tape; S4, rolling, rewinding, cutting, sampling and packaging the prepared tape; in step S1, a super-hydrophobic PET film is used as the substrate; in step S2, a silicone pressure-sensitive adhesive is used as the adhesive layer ingredient. It can be seen that the above technical solution has a single adhesive material and lacks necessary testing during the preparation process, resulting in a significant decrease in the viscosity of the product when facing environmental changes, thereby affecting the overall quality and application effect of the product. Summary of the invention

[0004] To this end, the present invention provides a method for preparing a highly adhesive environmentally friendly polymer packaging material, so as to overcome the problem of insufficient adhesiveness of the adhesive tape caused by changes in ambient temperature in the prior art.

[0005] To achieve the above object, the present invention provides a method for preparing a highly adhesive environmentally friendly polymer packaging material, comprising:

[0006] heating the PET coil and stretching it according to a first stretching ratio to obtain a substrate;

[0007] Grinding one side of the substrate, and cleaning and drying the substrate after grinding;

[0008] Alternately coating the first colloid and the second colloid at equal intervals on the grinding surface;

[0009] heating the coated substrate and stretching it along the coating direction according to a second stretching ratio to obtain a coated tape;

[0010] When obtaining the surface roughness of the coated surface of the coated strip and determining that the preparation of the coated strip does not meet the preset standard according to the surface roughness, reducing the second stretching ratio for preparing the next batch of coated substrates, or determining the reason why the preparation of the coated strip does not meet the preset standard according to the colloid fusion characteristic distance;

[0011] When it is determined based on the surface roughness that the preparation of the coated strip meets a preset standard, performing a aging treatment on the coated strip;

[0012] Obtaining an adhesive performance evaluation value and determining whether the preparation of the coated strip after aging meets a preset standard according to the adhesive performance evaluation value;

[0013] The glue-coated surface of the cured coated strip material that meets the preset standard is covered with a polytetrafluoroethylene film to complete the preparation of the packaging material.

[0014] Further, whether the preparation of the coated strip meets the preset standard is determined according to the surface roughness, wherein:

[0015] If the surface roughness is less than a first preset roughness threshold, it is determined that the preparation of the coated strip does not meet the preset standard, and the second stretching ratio for preparing the next batch of coated substrates is reduced according to the difference between the first preset roughness threshold and the surface roughness;

[0016] If the surface roughness is greater than or equal to the first preset roughness threshold and less than the second preset roughness threshold, it is determined that the preparation of the coated strip meets the preset standard, and the coated strip is subjected to a aging treatment;

[0017] If the surface roughness is greater than or equal to the second preset roughness threshold, it is determined that the preparation of the coated strip does not meet the preset standard, and the reason why the preparation of the coated strip does not meet the preset standard is determined according to the colloid fusion characteristic distance.

[0018] Furthermore, several stretching ratio adjustment methods are provided for reducing the second stretching ratio, and each stretching ratio adjustment method has a different adjustment range for the second stretching ratio.

[0019] Furthermore, under the first preset condition, several stretching ratio correction methods are provided for the second stretching ratio, and each stretching ratio correction method has a different correction range for the second stretching ratio;

[0020] The first preset condition is that the thickness of the coated strip after the adjustment of the second stretching ratio is greater than a preset thickness.

[0021] Further, the reason why the preparation of the coated strip does not meet the preset standard is determined based on the colloid fusion characteristic distance, wherein:

[0022] If the colloid fusion characteristic distance is less than the preset characteristic distance, it is determined that the reason for not meeting the preset standard is that the coating spacing of the first colloid and the second colloid does not meet the standard, and the coating spacing of the next batch of substrates is reduced according to the difference between the preset characteristic distance and the colloid fusion characteristic distance;

[0023] If the colloid fusion characteristic distance is greater than or equal to the preset characteristic distance, it is determined that the reason for not meeting the preset standard is that the heating temperature of the second stretching does not meet the standard, and the heating temperature of the second stretching is increased according to the difference between the colloid fusion characteristic distance and the preset characteristic distance.

[0024] Furthermore, the reduction range of the coating spacing is positively correlated with the fusion characteristic difference, wherein the fusion characteristic difference is the difference between the preset characteristic distance and the colloid fusion characteristic distance.

[0025] Further, it is determined whether the preparation of the coated tape after aging meets the preset standard according to the adhesive performance evaluation value, wherein:

[0026] If the adhesive performance evaluation value is less than a first preset evaluation threshold, it is determined that the preparation of the coated tape after aging does not meet the preset standard, and the coating amount of the first colloid and the second colloid is increased synchronously according to the difference between the first preset evaluation threshold and the adhesive performance evaluation value;

[0027] If the adhesive performance evaluation value is greater than or equal to the first preset evaluation threshold and less than the second preset evaluation threshold, it is determined that the preparation of the coated tape after aging does not meet the preset standard, and the duration of the aging treatment is increased according to the difference between the adhesive performance evaluation value and the first preset evaluation threshold;

[0028] If the adhesive performance evaluation value is greater than or equal to the second preset evaluation threshold, it is determined that the preparation of the coated strip after curing meets the preset standard, and the adhesive coated surface of the coated strip after curing that meets the preset standard is covered with a polytetrafluoroethylene film to complete the preparation of the packaging material.

[0029] Furthermore, the adhesive performance evaluation value is jointly determined by a first temperature adhesion coefficient and a second temperature adhesion coefficient, wherein the first temperature adhesion coefficient is jointly determined based on the initial adhesion, sustained adhesion and peeling force of the coated tape after aging at the first temperature, and the second temperature adhesion coefficient is jointly determined based on the initial adhesion, sustained adhesion and peeling force of the coated tape after aging at the second temperature.

[0030] Furthermore, the coating amounts of the first colloid and the second colloid are increased synchronously according to the difference between the first preset evaluation threshold and the adhesive performance evaluation value, wherein:

[0031] If the difference in the adhesive performance evaluation is less than the first preset evaluation difference, the coating amounts of the first colloid and the second colloid are simultaneously increased to corresponding values ​​using the first preset coating adjustment coefficient;

[0032] If the adhesive performance evaluation difference is greater than or equal to the first preset evaluation difference and less than the second preset evaluation difference, the coating amounts of the first colloid and the second colloid are simultaneously increased to corresponding values ​​using the second preset coating adjustment coefficient;

[0033] If the adhesive performance evaluation difference is greater than or equal to the second preset evaluation difference, the coating amounts of the first colloid and the second colloid are synchronously increased to corresponding values ​​using a third preset coating adjustment coefficient;

[0034] The pasting performance evaluation difference is a difference between a first preset evaluation threshold and the pasting performance evaluation value.

[0035] Furthermore, the first colloid is polyurethane, and the second colloid is acrylic acid.

[0036] Compared with the prior art, the beneficial effect of the present invention is that the present invention selects two colloids suitable for different ambient temperatures for alternate coating at equal intervals, and heats and stretches the coated strip to fuse the two colloids with each other, thereby enhancing the adaptability of the product and being applicable to applications under different working conditions.

[0037] The invention effectively improves the bonding performance of the packaging material through a sophisticated preparation process, including stretching, grinding, alternating coating of double colloids and subsequent aging treatment.

[0038] The invention adopts environmentally friendly materials and does not use harmful solvents and additives during the preparation process, thereby reducing pollution to the environment.

[0039] The present invention obtains the surface roughness of the coated strip, and determines the reason why the preparation of the coated strip does not meet the preset standard according to the roughness, optimizes the preparation scheme by adjusting parameters, and improves the preparation efficiency and product quality.

[0040] The present invention obtains an adhesive performance evaluation value through an adhesive performance test, determines the reason why the preparation of the coated strip after curing does not meet the preset standard according to the adhesive performance evaluation value, and further adjusts relevant preparation parameters, thereby ensuring that the quality of each batch of products meets the preset standard and improving the overall quality and stability of the product.

[0041] The present invention is provided with several deformation rate adjustment methods for reducing the deformation rate of the second stretching, and is provided with several deformation rate correction methods for the deformation rate of the second stretching under the first preset condition, so that the preparation parameters are more accurate and the high quality of the product is guaranteed.

[0042] The present invention can flexibly adjust the preparation parameters according to the test results, such as the deformation rate of the second stretching, the coating spacing, the heating temperature and the glue output of the glue spraying machine, etc., making the preparation process more flexible and able to quickly respond to different production needs and environmental changes.

[0043] The present invention improves production efficiency while ensuring product quality by optimizing the preparation process and parameter settings, and can reduce material waste and energy consumption and reduce production costs by accurately controlling parameters such as stretching ratio and heating temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 This is a flow chart of a method for preparing a highly adhesive and environmentally friendly polymer packaging material according to an embodiment of the present invention;

[0045] Figure 2 This is a flow chart of determining whether the preparation of the coated strip meets a preset standard according to the surface roughness according to an embodiment of the present invention;

[0046] Figure 3 This is a flow chart of reducing the second stretching ratio according to the roughness difference according to an embodiment of the present invention;

[0047] Figure 4 This is a flow chart of an embodiment of the present invention for determining whether the preparation of the coated tape after aging meets the preset standard according to the adhesive performance evaluation value. DETAILED DESCRIPTION

[0048] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0049] Those skilled in the art will appreciate that the method of the present invention for determining a single parameter mentioned above may be to select the value with the highest proportion as the preset standard parameter based on data distribution, use weighted summation to use the obtained value as the preset standard parameter, substitute each historical data into a specific formula and use the value obtained by using the formula as the preset standard parameter or other selection methods, as long as the method of the present invention can clearly define different specific situations in the single determination process through the obtained values.

[0050] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0051] See also Figure 1 , Figure 2 , Figure 3 as well as Figure 4 As shown, they are respectively a flow chart of a method for preparing a highly adhesive and environmentally friendly polymer packaging material according to an embodiment of the present invention; a flow chart of determining whether the preparation of the coated tape meets the preset standard according to the surface roughness according to an embodiment of the present invention; a flow chart of reducing the second stretching ratio according to the roughness difference according to an embodiment of the present invention; a flow chart of determining whether the preparation of the coated tape after curing meets the preset standard according to the adhesive performance evaluation value according to an embodiment of the present invention.

[0052] A method for preparing a highly adhesive environmentally friendly polymer packaging material according to an embodiment of the present invention comprises:

[0053] Step S1, heating the PET coil and stretching it according to a first stretching ratio to obtain a substrate;

[0054] Step S2, grinding one side of the substrate, and then cleaning and drying the substrate after grinding;

[0055] Step S3, alternately coating the first colloid and the second colloid at equal intervals on the grinding surface;

[0056] Step S4, heating the coated substrate and stretching it along the coating direction according to a second stretching ratio to obtain a coated strip;

[0057] Step S5, when obtaining the surface roughness of the coated surface of the coated strip and determining that the preparation of the coated strip does not meet the preset standard according to the surface roughness, reducing the second stretching ratio for preparing the next batch of coated substrates, or determining the reason why the preparation of the coated strip does not meet the preset standard according to the colloid fusion characteristic distance;

[0058] Step S6, performing a aging treatment on the coated strip when it is determined based on the surface roughness that the preparation of the coated strip meets a preset standard;

[0059] Step S7, obtaining an adhesive performance evaluation value and determining whether the preparation of the coated strip after aging meets a preset standard according to the adhesive performance evaluation value;

[0060] Step S8, covering the glue-coated surface of the cured coated strip material that meets the preset standard with a polytetrafluoroethylene film to complete the preparation of the packaging material.

[0061] Specifically, the first stretching ratio in step S1 is the ratio of the stretched thickness of the PET coil to the thickness before stretching. The first stretching ratio is set to 0.6, for example, the thickness of the coil is stretched from 0.05 mm to 0.03 mm.

[0062] Specifically, the coating distance between the first colloid and the second colloid in the step S3 is not specifically limited and can be set according to actual production conditions.

[0063] Specifically, the coating amounts of the first colloid and the second colloid are not specifically limited and can be set according to actual production conditions.

[0064] Specifically, the second stretching ratio in step S4 is not specifically limited and can be set according to actual production conditions. For example, the second stretching ratio is 0.2.

[0065] Specifically, the polytetrafluoroethylene film in step S8 is an anti-adhesive film used to protect the colloid from external pollution and damage.

[0066] Specifically, whether the preparation of the coated strip meets the preset standard is determined according to the surface roughness, wherein:

[0067] If the surface roughness is less than a first preset roughness threshold of 120 μm, it is determined that the preparation of the coated strip does not meet the preset standard, and the second stretching ratio for the preparation of the next batch of coated substrates is reduced according to the difference between the first preset roughness threshold and the surface roughness;

[0068] If the surface roughness is greater than or equal to the first preset roughness threshold and less than the second preset roughness threshold of 150 μm, it is determined that the preparation of the coated strip meets the preset standard, and the coated strip is subjected to aging treatment;

[0069] If the surface roughness is greater than or equal to the second preset roughness threshold, it is determined that the preparation of the coated strip does not meet the preset standard, and the reason why the preparation of the coated strip does not meet the preset standard is determined according to the colloid fusion characteristic distance.

[0070] Specifically, the second stretching ratio for preparing the next batch of coated substrates is reduced according to the difference between the first preset roughness threshold and the surface roughness, wherein,

[0071] If the roughness difference is less than the first preset roughness difference of 12 μm, the second stretching ratio is reduced to a corresponding value using the first roughness adjustment coefficient of 0.992;

[0072] If the roughness difference is greater than or equal to the first preset roughness difference and less than the second preset roughness difference of 25 μm, the second stretching ratio is reduced to a corresponding value using a second roughness adjustment coefficient of 0.985;

[0073] If the roughness difference is greater than or equal to the second preset roughness difference, the second stretching ratio is reduced to a corresponding value using a third roughness adjustment coefficient of 0.980;

[0074] The roughness difference is the difference between the first preset roughness threshold and the surface roughness.

[0075] Specifically, the second stretching ratio is corrected according to the correction difference under the first preset condition, wherein:

[0076] If the correction difference is less than the first preset correction difference of 0.015 mm, the second stretching ratio is increased to a corresponding value using the first preset roughness correction coefficient of 1.007;

[0077] If the correction difference is greater than or equal to the first preset correction difference and less than the second preset correction difference of 0.020 mm, the second stretching ratio is increased to a corresponding value using a second preset roughness correction coefficient of 1.016;

[0078] If the correction difference is greater than or equal to the second preset correction difference, the second stretching ratio is increased to a corresponding value using a third preset roughness correction coefficient of 1.022;

[0079] The correction difference is the difference between the thickness of the coated strip after the adjustment of the second stretching ratio is completed and the preset thickness;

[0080] The first preset condition is that the second stretching ratio is adjusted and the thickness of the coated strip after adjustment is greater than a preset thickness.

[0081] Specifically, the reason why the preparation of the coated strip does not meet the preset standard is determined based on the colloid fusion characteristic distance, wherein:

[0082] If the colloid fusion characteristic distance is less than the preset characteristic distance of 0.03 mm, it is determined that the reason for not meeting the preset standard is that the coating spacing of the first colloid and the second colloid does not meet the standard, and the coating spacing of the next batch of substrates is reduced according to the difference between the preset characteristic distance and the colloid fusion characteristic distance;

[0083] If the colloid fusion characteristic distance is greater than or equal to the preset characteristic distance, it is determined that the reason for not meeting the preset standard is that the heating temperature of the second stretching does not meet the standard, and the heating temperature of the second stretching is increased according to the difference between the colloid fusion characteristic distance and the preset characteristic distance.

[0084] Specifically, the colloid fusion characteristic distance is the vertical distance from the highest point where the first colloid and the second colloid fuse to the surface of the substrate.

[0085] Specifically, the coating spacing between the first colloid and the second colloid is reduced according to the fusion feature difference, wherein:

[0086] If the fusion characteristic difference is less than the first preset fusion difference of 0.007 mm, the coating spacing between the first colloid and the second colloid is reduced to a corresponding value using a low-amplitude fusion adjustment coefficient of 0.995;

[0087] If the fusion characteristic difference is greater than or equal to the first preset fusion difference and less than the second preset fusion difference of 0.012 mm, the coating spacing between the first colloid and the second colloid is reduced to a corresponding value using the mid-range fusion adjustment coefficient of 0.988;

[0088] If the fusion characteristic difference is greater than or equal to the second preset fusion difference, the high-amplitude fusion adjustment coefficient of 0.982 is used to reduce the coating distance between the first colloid and the second colloid to a corresponding value;

[0089] The fusion feature difference is the difference between the preset feature distance and the colloid fusion feature distance.

[0090] Specifically, whether the preparation of the coated tape after aging meets the preset standard is determined according to the adhesive performance evaluation value, wherein:

[0091] If the adhesive performance evaluation value is less than the first preset evaluation threshold value of 0.82, it is determined that the preparation of the coated tape after aging does not meet the preset standard, and the coating amount of the first colloid and the second colloid is increased synchronously according to the difference between the first preset evaluation threshold value and the adhesive performance evaluation value;

[0092] If the adhesive performance evaluation value is greater than or equal to the first preset evaluation threshold and less than the second preset evaluation threshold of 0.90, it is determined that the preparation of the coated tape after aging does not meet the preset standard, and the duration of the aging treatment is increased according to the difference between the adhesive performance evaluation value and the first preset evaluation threshold;

[0093] If the adhesive performance evaluation value is greater than or equal to the second preset evaluation threshold, it is determined that the preparation of the coated strip after curing meets the preset standard, and the adhesive coated surface of the coated strip after curing that meets the preset standard is covered with a polytetrafluoroethylene film to complete the preparation of the packaging material.

[0094] Specifically, the adhesive performance evaluation value is determined jointly by a first temperature adhesion coefficient and a second temperature adhesion coefficient, wherein the first temperature adhesion coefficient is determined jointly based on the initial adhesion, sustained adhesion and peeling force of the coated tape after aging at the first temperature, and the second temperature adhesion coefficient is determined jointly based on the initial adhesion, sustained adhesion and peeling force of the coated tape after aging at the second temperature.

[0095] Specifically, the adhesive performance evaluation value is calculated by the following formula:

[0096]

[0097] In the formula, E represents the adhesive performance evaluation value, K1 represents the first temperature adhesive coefficient, and K2 represents the second temperature adhesive coefficient.

[0098]

[0099] In the formula, α represents the first evaluation coefficient, and α is set to 0.32; T1 represents the initial tack at the first temperature, Ty represents the initial tack threshold, and Ty is set to 15 mm; H1 represents the sustained tack at the first temperature, Hy represents the sustained tack threshold, and Hy is set to 35 MPa; F1 represents the peeling force at the first temperature, Fy represents the peeling force threshold, and Fy is set to 2 N / cm; β represents the first evaluation coefficient, and β is set to 0.35; γ represents the first evaluation coefficient, and γ is set to 0.28;

[0100]

[0101] In the formula, T2 represents the initial tack at the second temperature, H2 represents the sustained tack at the second temperature, and F2 represents the peeling force at the second temperature;

[0102] Specifically, the values ​​of initial tack, sustained tack and peel strength are obtained by testing in accordance with GB / T 4852 “Initial tack test for pressure-sensitive tapes - inclined rolling ball method”, GB / T 4851 “Test method for sustained tack of pressure-sensitive adhesive tapes” and GB / T2792 “Test method for 180° peel strength of pressure-sensitive adhesive tapes” respectively.

[0103] Specifically, the first temperature setting range is -20-20°C, and the second temperature setting range is 20-60°C. There is no specific limitation. In this embodiment, the first temperature setting is -20°C and the second temperature setting is 60°C.

[0104] Specifically, the coating amounts of the first colloid and the second colloid are increased synchronously according to the difference between the first preset evaluation threshold and the adhesive performance evaluation value, wherein:

[0105] If the difference in the adhesive performance evaluation is less than the first preset evaluation difference of 0.06, the first preset coating adjustment coefficient of 1.05 is used to synchronously increase the coating amounts of the first colloid and the second colloid to corresponding values;

[0106] If the adhesive performance evaluation difference is greater than or equal to the first preset evaluation difference and less than the second preset evaluation difference of 0.12, the coating amounts of the first colloid and the second colloid are simultaneously increased to corresponding values ​​using the second preset coating adjustment coefficient of 1.12;

[0107] If the adhesive performance evaluation difference is greater than or equal to the second preset evaluation difference, the coating amounts of the first colloid and the second colloid are simultaneously increased to corresponding values ​​using a third preset coating adjustment coefficient of 1.25;

[0108] The pasting performance evaluation difference is the difference between the first preset evaluation threshold and the pasting performance evaluation value.

[0109] Specifically, the first colloid is polyurethane, which has good low-temperature resistance. In the temperature range of -20-20°C, polyurethane colloid can maintain sufficient bonding strength and elasticity, and is suitable for bonding a variety of materials. The second colloid is acrylic acid. In the temperature range of 20-60°C, acrylic acid colloid can maintain a stable bonding effect, and is an ideal choice for many daily and industrial applications.

[0110] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

[0111] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for preparing a highly adhesive environmentally friendly polymer packaging material, characterized in that: include: heating the PET coil and stretching it according to a first stretching ratio to obtain a substrate; Grinding one side of the substrate, and cleaning and drying the substrate after grinding; Alternately coating the first colloid and the second colloid at equal intervals on the grinding surface; heating the coated substrate and stretching it along the coating direction according to a second stretching ratio to obtain a coated tape; When obtaining the surface roughness of the coated surface of the coated strip and determining that the preparation of the coated strip does not meet the preset standard according to the surface roughness, reducing the second stretching ratio for preparing the next batch of coated substrates, or determining the reason why the preparation of the coated strip does not meet the preset standard according to the colloid fusion characteristic distance; When it is determined based on the surface roughness that the preparation of the coated strip meets a preset standard, performing a aging treatment on the coated strip; Obtaining an adhesive performance evaluation value and determining whether the preparation of the coated strip after aging meets a preset standard according to the adhesive performance evaluation value; The glue-coated surface of the cured coated strip material that meets the preset standard is covered with a polytetrafluoroethylene film to complete the preparation of the packaging material.

2. The method for preparing the highly adhesive environmentally friendly polymer packaging material according to claim 1, characterized in that: According to the surface roughness, it is determined whether the preparation of the coated strip meets the preset standard, wherein: If the surface roughness is less than a first preset roughness threshold, it is determined that the preparation of the coated strip does not meet the preset standard, and the second stretching ratio for preparing the next batch of coated substrates is reduced according to the difference between the first preset roughness threshold and the surface roughness; If the surface roughness is greater than or equal to the first preset roughness threshold and less than the second preset roughness threshold, it is determined that the preparation of the coated strip meets the preset standard, and the coated strip is subjected to a aging treatment; If the surface roughness is greater than or equal to the second preset roughness threshold, it is determined that the preparation of the coated strip does not meet the preset standard, and the reason why the preparation of the coated strip does not meet the preset standard is determined according to the colloid fusion characteristic distance.

3. The method for preparing the highly adhesive environmentally friendly polymer packaging material according to claim 2, characterized in that: Several stretching ratio adjustment methods are provided for reducing the second stretching ratio, and each stretching ratio adjustment method has a different adjustment range for the second stretching ratio.

4. The method for preparing the highly adhesive environmentally friendly polymer packaging material according to claim 3, characterized in that: Under the first preset condition, a plurality of stretch ratio correction methods for the second stretch ratio are provided, and each stretch ratio correction method has a different correction range for the second stretch ratio; The first preset condition is that the thickness of the coated strip after the adjustment of the second stretching ratio is greater than a preset thickness.

5. The method for preparing the highly adhesive environmentally friendly polymer packaging material according to claim 4, characterized in that: The reason why the preparation of the coated strip does not meet the preset standard is determined based on the colloid fusion characteristic distance, wherein: If the colloid fusion characteristic distance is less than the preset characteristic distance, it is determined that the reason for not meeting the preset standard is that the coating spacing of the first colloid and the second colloid does not meet the standard, and the coating spacing of the next batch of substrates is reduced according to the difference between the preset characteristic distance and the colloid fusion characteristic distance; If the colloid fusion characteristic distance is greater than or equal to the preset characteristic distance, it is determined that the reason for not meeting the preset standard is that the heating temperature of the second stretching does not meet the standard, and the heating temperature of the second stretching is increased according to the difference between the colloid fusion characteristic distance and the preset characteristic distance.

6. The method for preparing the highly adhesive environmentally friendly polymer packaging material according to claim 5, characterized in that: The reduction range of the coating spacing is positively correlated with the fusion characteristic difference, wherein the fusion characteristic difference is the difference between the preset characteristic distance and the colloid fusion characteristic distance.

7. The method for preparing the highly adhesive and environmentally friendly polymer packaging material according to claim 6, characterized in that: According to the adhesive performance evaluation value, it is determined whether the preparation of the coated strip after aging meets the preset standard, wherein: If the adhesive performance evaluation value is less than a first preset evaluation threshold, it is determined that the preparation of the coated tape after aging does not meet the preset standard, and the coating amount of the first colloid and the second colloid is increased synchronously according to the difference between the first preset evaluation threshold and the adhesive performance evaluation value; If the adhesive performance evaluation value is greater than or equal to the first preset evaluation threshold and less than the second preset evaluation threshold, it is determined that the preparation of the coated tape after aging does not meet the preset standard, and the duration of the aging treatment is increased according to the difference between the adhesive performance evaluation value and the first preset evaluation threshold; If the adhesive performance evaluation value is greater than or equal to the second preset evaluation threshold, it is determined that the preparation of the coated strip after curing meets the preset standard, and the adhesive coated surface of the coated strip after curing that meets the preset standard is covered with a polytetrafluoroethylene film to complete the preparation of the packaging material.

8. The method for preparing the highly adhesive environmentally friendly polymer packaging material according to claim 7, characterized in that: The adhesive performance evaluation value is jointly determined by a first temperature adhesion coefficient and a second temperature adhesion coefficient, wherein the first temperature adhesion coefficient is jointly determined based on the initial adhesion, sustained adhesion and peeling force of the coated tape after aging at a first temperature, and the second temperature adhesion coefficient is jointly determined based on the initial adhesion, sustained adhesion and peeling force of the coated tape after aging at a second temperature.

9. The method for preparing the highly adhesive and environmentally friendly polymer packaging material according to claim 8, characterized in that: The coating amounts of the first colloid and the second colloid are synchronously increased according to the difference between the first preset evaluation threshold and the adhesive performance evaluation value, wherein: If the difference in the adhesive performance evaluation is less than the first preset evaluation difference, the coating amounts of the first colloid and the second colloid are simultaneously increased to corresponding values ​​using the first preset coating adjustment coefficient; If the adhesive performance evaluation difference is greater than or equal to the first preset evaluation difference and less than the second preset evaluation difference, the coating amounts of the first colloid and the second colloid are simultaneously increased to corresponding values ​​using the second preset coating adjustment coefficient; If the adhesive performance evaluation difference is greater than or equal to the second preset evaluation difference, the coating amounts of the first colloid and the second colloid are synchronously increased to corresponding values ​​using a third preset coating adjustment coefficient; The pasting performance evaluation difference is a difference between a first preset evaluation threshold and the pasting performance evaluation value.

10. The method for preparing the highly adhesive and environmentally friendly polymer packaging material according to claim 9, characterized in that: The first colloid is polyurethane, and the second colloid is acrylic acid.

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