HTNK-based deoxidizer packaging material and preparation method thereof

Abstract

The invention relates to the technical field of packaging materials, in particular to a deoxidizer packaging material based on HTNK and a preparation method thereof.The deoxidizer packaging material comprises a PE film layer, the upper face and the lower face of the PE film layer are connected with HTNK layers through adhesives, and the face, away from the PE film layer, of one HTNK layer is connected with a PE waterproof breathable film layer through an adhesive; the HTNK layer is a PET dot non-woven fabric layer, and the gram weight of the PET dot non-woven fabric layer is 30-45 g / m < 2 >; a plurality of air holes are formed in the PE thin film layer in a matrix mode, and the thickness of the PE thin film layer is 20-50 microns; and the thickness of the PE waterproof breathable film layer is 10-15 microns. The deoxidizer packaging material disclosed by the invention has excellent air permeability, excellent mechanical properties and a good using effect.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging materials, and in particular to a HTNK-based deoxidizer packaging material and a preparation method thereof. Background Art

[0002] Oxygen is one of the important factors that cause food spoilage. Most microorganisms grow well in an aerobic environment. Even if the oxygen content in the packaging environment is as low as 2-3%, most aerobic bacteria and facultative anaerobic bacteria can still grow and biochemical reactions can still proceed. Therefore, whether from the perspective of maintaining the color, aroma and taste of food or from the perspective of preventing food spoilage, it is crucial to remove oxygen from the packaging.

[0003] Oxygen absorber, also known as oxygen absorber or deoxidizer, is a product that can react with oxygen and reduce the oxygen concentration in the corresponding food sealed packaging container within a specified time and maintain it for a certain period of time. It is one of the most commonly used and most common deoxidation methods in food industry production. Oxygen absorber is a chemical material whose main function is to remove oxygen from the packaging, thereby preventing the product from getting damp, deteriorating or mildewing. In order to achieve this function, the selection of deoxidizer packaging materials is crucial.

[0004] The deoxidizer is usually packaged in deoxidizer packaging materials, which need to have good air permeability so that the deoxidizer can fully contact and react with the oxygen in the package. This air permeability ensures that the deoxidizer can efficiently absorb oxygen and create an oxygen-free storage environment for the product.

[0005] Among the common deoxidizer packaging materials, non-woven fabrics are popular due to their good air permeability. However, their overall mechanical properties are not strong enough and they are easily damaged by external forces, which may cause the deoxidizer to leak during transportation and storage. Therefore, it is necessary to further study the structure of deoxidizer packaging materials in order to obtain a deoxidizer packaging material with both good air permeability and excellent mechanical properties. Summary of the invention

[0006] The object of the present invention is to provide a deoxidizer packaging material based on HTNK and a preparation method thereof, wherein the deoxidizer packaging material has both excellent air permeability and excellent mechanical properties and has good use effect.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: A deoxidizer packaging material based on HTNK, the deoxidizer packaging material comprising a PE film layer, wherein the upper and lower surfaces of the PE film layer are connected to HTNK layers by adhesive, wherein a side of the HTNK layer away from the PE film layer is connected to a PE waterproof and breathable film layer by adhesive; The HTNK layer is a PET dot pattern non-woven fabric layer, and the gram weight of the PET dot pattern non-woven fabric layer is 30-45 g / m 2 ; The PE film layer is provided with a plurality of air holes in a matrix, and the thickness of the PE film layer is 20-50 μm; The thickness of the PE waterproof and breathable membrane layer is 10-15 μm.

[0008] Preferably, the diameter of the air holes is 0.5-0.8 mm; and the distance between any two adjacent air holes is 1-1.5 times the diameter of the air holes.

[0009] Preferably, the PE film layer comprises the following raw materials in parts by weight: 100 parts of high-density polyethylene, 10-15 parts of metallocene polyethylene, 1-1.6 parts of wrinkled graphene, 3-5.5 parts of modified carbon fiber, 0.1-0.2 parts of silane coupling agent, and 0.1-0.3 parts of antioxidant.

[0010] Preferably, the method for preparing the wrinkled graphene comprises the following steps: A graphene oxide aqueous solution with a concentration of 1-3 mg / mL is prepared; and the graphene oxide aqueous solution is subjected to ultrasonic treatment for 2-3 hours at a power of 500-1000 W; The graphene oxide aqueous solution after ultrasonic treatment is placed in a 2-5 mL vial, and then placed in liquid nitrogen for freezing for 3-6 minutes; then taken out and placed in a freeze dryer for vacuum freeze drying to obtain the wrinkled graphene.

[0011] Preferably, the preparation method of the modified carbon fiber comprises the following steps: immersing carbon fiber with a length of 1.5-2 mm in silica sol and ultrasonically treating it for 1-2 hours, then taking out the carbon fiber and placing it in a centrifuge for centrifugal treatment for 2-3 minutes, and then vacuum drying it; then placing the obtained carbon fiber in a calcining furnace, heating it to 550-600°C under a nitrogen atmosphere, keeping it warm and calcining it for 2.5-3.5 hours, and cooling it to room temperature to obtain the modified carbon fiber.

[0012] Preferably, the silane coupling agent is at least one of KH550 and KH560; and the antioxidant is antioxidant 168 or antioxidant 1010.

[0013] Preferably, the method for preparing the PE film layer comprises the following steps: The wrinkled graphene, modified carbon fiber and silane coupling agent are placed in a high-speed mixer and mixed for 1.5-2 hours, and then the obtained material is mixed evenly with high-density polyethylene, metallocene polyethylene and antioxidant, and granulated by a twin-screw extruder to obtain a masterbatch; and then the obtained masterbatch is put into a casting machine for casting to obtain a PE film; Then, a punching device is used to punch a plurality of air-permeable holes in a matrix on the PE film to obtain a PE film layer.

[0014] Preferably, the twin-screw extruder has five heating sections, and the heating temperatures are 190-195°C, 195-200°C, 200-205°C, 205-210°C, and 210-215°C, respectively.

[0015] As a general inventive concept, the present invention provides a method for preparing a deoxidizer packaging material based on HTNK, comprising the following steps: S1: Coat the upper and lower surfaces of the PE film layer with adhesive, then bond the HTNK layer to the upper and lower surfaces of the PE film layer, and then place it in a dry laminating machine for lamination; S2: coating the PE waterproof breathable film layer with adhesive on the side facing the HTNK layer, and bonding it to the corresponding HTNK layer, and then placing it in a dry laminating machine for lamination; and then aging at 30-45° C. for 24-30 hours to obtain the deoxidizer packaging material.

[0016] The beneficial effects of the present invention are: The deoxidizer packaging material of the present invention has PET dotted non-woven fabric layers (HTNK layers) fixedly connected to the upper and lower surfaces of the PE film layer. The double-layer PET dotted non-woven fabric layer with appropriate thickness combined with the excellent puncture resistance and other properties of the non-woven fabric can effectively prevent the packaging material from being damaged and leaking powder.

[0017] In order to improve the anti-deformation ability of the deoxidizer packaging material, the present invention uses wrinkled graphene and modified carbon fiber as modified materials when preparing the PE film layer, wherein the wrinkled surface of the graphene can be firmly embedded in the PE film layer, and after the carbon fiber is modified, nano-silicon dioxide is distributed on its surface, and the surface roughness is high, and it can also be firmly embedded in the PE film layer. The wrinkled graphene and modified carbon fiber form a point-line network structure in the PE film layer, which is equivalent to forming a supporting network structure in the PE film layer, so that the mechanical properties of the PE film layer are significantly improved, even when a large number of air holes are opened in the PE film layer, the PE film layer still maintains a stable supporting network structure. The PE film layer can be used as the intermediate skeleton of the deoxidizer packaging material, effectively improves the anti-deformation ability and strength of the deoxidizer packaging material, is not easily damaged and torn by external forces, and because a large number of air holes are opened on the PE film layer, it can effectively maintain a high air permeability.

[0018] In addition, the present invention bonds a PE waterproof and breathable film layer outside a PET dot pattern non-woven fabric layer (HTNK layer). By providing the PE waterproof and breathable film layer, the deoxidizer can be protected and the heat sealing of the deoxidizer packaging material is facilitated.

[0019] The deoxidizer packaging material of the invention has both excellent air permeability and excellent mechanical properties and has good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a structural schematic diagram of the deoxidizer packaging material of the present invention; Figure 2 It is a partial top view of the PE film layer of the present invention; In the figure: 1, PE film layer; 11, air holes; 2, HTNK layer; 3, PE waterproof and breathable film layer. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in combination with the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Embodiment 1: A deoxidizer packaging material based on HTNK, such as Figure 1-2 As shown, it includes a PE film layer 1, and the upper and lower surfaces of the PE film layer 1 are connected to HTNK layers 2 through adhesives, and one side of the HTNK layer 2 away from the PE film layer 1 is connected to a PE waterproof and breathable membrane layer 3 through adhesives.

[0024] HTNK layer 2 is a PET dot pattern non-woven fabric layer, and the weight of the PET dot pattern non-woven fabric layer is 40g / m 2 .

[0025] The PE film layer 1 is provided with a plurality of air holes 11 in a matrix. The thickness of the PE film layer 1 is 35 μm. The diameter of the air holes 11 is 0.8 mm. The distance between any two adjacent air holes 11 is 1 times the diameter of the air holes 11 .

[0026] The thickness of the PE waterproof and breathable membrane layer 3 is 15 μm.

[0027] In this embodiment, the PE film layer 1 includes the following raw materials in parts by weight: 100 parts of high-density polyethylene, 11 parts of metallocene polyethylene, 1 part of wrinkled graphene, 4.5 parts of modified carbon fiber, 0.2 parts of silane coupling agent KH550, and 0.1 parts of antioxidant 168.

[0028] The method for preparing the wrinkled graphene comprises the following steps: A graphene oxide aqueous solution with a concentration of 3 mg / mL was prepared; the graphene oxide aqueous solution was then subjected to ultrasonic treatment for 3 hours at a power of 800 W; The graphene oxide aqueous solution after ultrasonic treatment was placed in a 2 mL vial, and then frozen in liquid nitrogen for 6 minutes; then taken out and placed in a freeze dryer for vacuum freeze drying to obtain wrinkled graphene.

[0029] The preparation method of the modified carbon fiber comprises the following steps: immersing a carbon fiber with a length of 1.5 mm in a silica sol with a solid content of 25%, and ultrasonically treating it for 2 hours, then taking out the carbon fiber, placing it in a centrifuge for centrifugal treatment for 3 minutes, and then vacuum drying it; then placing the obtained carbon fiber in a calcining furnace, heating it to 570°C under a nitrogen atmosphere, calcining it for 3.5 hours, and cooling it to room temperature to obtain the modified carbon fiber.

[0030] The preparation method of the PE film layer 1 specifically comprises the following steps: The wrinkled graphene, modified carbon fiber and silane coupling agent KH550 were placed in a high-speed mixer and mixed for 2 hours. The obtained material was then evenly mixed with high-density polyethylene, metallocene polyethylene and antioxidant 168, and granulated through a twin-screw extruder to obtain a masterbatch; the twin-screw extruder had 5 heating sections, and the heating temperatures were 195°C, 200°C, 205°C, 210°C and 215°C respectively.

[0031] Then the obtained masterbatch is put into a casting machine for casting to obtain a PE film; then a punching device is used to punch a plurality of matrix-like air holes 11 on the PE film to obtain a PE film layer 1.

[0032] The preparation method of the deoxidizer packaging material based on HTNK in this embodiment comprises the following steps: S1: coating the upper and lower surfaces of the PE film layer 1 with adhesive, then bonding the HTNK layer 2 to the upper and lower surfaces of the PE film layer 1, and then placing in a dry laminating machine for lamination; S2: Coat the adhesive on the side of the PE waterproof and breathable membrane layer 3 facing the HTNK layer 2, and bond it to the corresponding HTNK layer 2, and then place it in a dry laminating machine for lamination; then mature it at 30° C. for 30 hours to obtain the deoxidizer packaging material.

[0033] Embodiment 2: A deoxidizer packaging material based on HTNK, such as Figure 1-2 As shown, it includes a PE film layer 1, and the upper and lower surfaces of the PE film layer 1 are connected to HTNK layers 2 through adhesives, and one side of the HTNK layer 2 away from the PE film layer 1 is connected to a PE waterproof and breathable membrane layer 3 through adhesives.

[0034] HTNK layer 2 is a PET dot pattern non-woven fabric layer, and the weight of the PET dot pattern non-woven fabric layer is 45g / m 2 .

[0035] The PE film layer 1 is provided with a plurality of air holes 11 in a matrix. The thickness of the PE film layer 1 is 35 μm. The diameter of the air holes 11 is 0.5 mm. The distance between any two adjacent air holes 11 is 1 times the diameter of the air holes 11 .

[0036] The thickness of the PE waterproof and breathable membrane layer 3 is 15 μm.

[0037] In this embodiment, the PE film layer 1 includes the following raw materials in parts by weight: 100 parts of high-density polyethylene, 11 parts of metallocene polyethylene, 1.6 parts of wrinkled graphene, 4.5 parts of modified carbon fiber, 0.2 parts of silane coupling agent KH550, and 0.3 parts of antioxidant 168.

[0038] The method for preparing the wrinkled graphene comprises the following steps: A graphene oxide aqueous solution with a concentration of 3 mg / mL was prepared; the graphene oxide aqueous solution was then subjected to ultrasonic treatment for 2 hours at a power of 1000 W; the graphene oxide aqueous solution after ultrasonic treatment was placed in a 5 mL vial, and then frozen in liquid nitrogen for 6 minutes; then taken out and placed in a freeze dryer for vacuum freeze drying to obtain wrinkled graphene.

[0039] The preparation method of the modified carbon fiber comprises the following steps: immersing a carbon fiber with a length of 1.5 mm in a silica sol with a solid content of 25%, and ultrasonically treating it for 2 hours, then taking out the carbon fiber, placing it in a centrifuge for centrifugal treatment for 2 minutes, and then vacuum drying it; then placing the obtained carbon fiber in a calcining furnace, heating it to 600°C under a nitrogen atmosphere, calcining it for 3.5 hours, and cooling it to room temperature to obtain the modified carbon fiber.

[0040] The preparation method of the PE film layer 1 specifically comprises the following steps: The wrinkled graphene, modified carbon fiber and silane coupling agent KH550 were placed in a high-speed mixer and mixed for 1.5 hours. The obtained material was then evenly mixed with high-density polyethylene, metallocene polyethylene and antioxidant 168, and granulated through a twin-screw extruder to obtain a masterbatch; the twin-screw extruder had 5 heating sections, and the heating temperatures were 190°C, 195°C, 200°C, 205°C and 210°C respectively.

[0041] Then the obtained masterbatch is put into a casting machine for casting to obtain a PE film; then a punching device is used to punch a plurality of matrix-like air holes 11 on the PE film to obtain a PE film layer 1.

[0042] The preparation method of the deoxidizer packaging material based on HTNK in this embodiment comprises the following steps: S1: coating the upper and lower surfaces of the PE film layer 1 with adhesive, then bonding the HTNK layer 2 to the upper and lower surfaces of the PE film layer 1, and then placing in a dry laminating machine for lamination; S2: Coat the adhesive on the side of the PE waterproof and breathable membrane layer 3 facing the HTNK layer 2, and bond it to the corresponding HTNK layer 2, and then place it in a dry laminating machine for lamination; then mature it at 45° C. for 24 hours to obtain the deoxidizer packaging material.

[0043] Embodiment 3: A deoxidizer packaging material based on HTNK, such as Figure 1-2 As shown, it includes a PE film layer 1, and the upper and lower surfaces of the PE film layer 1 are connected to HTNK layers 2 through adhesives, and one side of the HTNK layer 2 away from the PE film layer 1 is connected to a PE waterproof and breathable membrane layer 3 through adhesives.

[0044] HTNK layer 2 is a PET dot pattern non-woven fabric layer, and the weight of the PET dot pattern non-woven fabric layer is 30g / m 2 .

[0045] The PE film layer 1 is provided with a plurality of air holes 11 in a matrix. The thickness of the PE film layer 1 is 35 μm. The diameter of the air holes 11 is 0.7 mm. The distance between any two adjacent air holes 11 is 1.5 times the diameter of the air holes 11 .

[0046] The thickness of the PE waterproof and breathable membrane layer 3 is 15 μm.

[0047] In this embodiment, the PE film layer 1 includes the following raw materials in parts by weight: 100 parts of high-density polyethylene, 10 parts of metallocene polyethylene, 1 part of wrinkled graphene, 5.5 parts of modified carbon fiber, 0.1 part of silane coupling agent KH550, and 0.1 part of antioxidant 168.

[0048] The method for preparing the wrinkled graphene comprises the following steps: A graphene oxide aqueous solution with a concentration of 2 mg / mL was prepared; the graphene oxide aqueous solution was then subjected to ultrasonic treatment for 3 hours at a power of 500 W; The graphene oxide aqueous solution after ultrasonic treatment was placed in a 5 mL penicillin bottle, and then frozen in liquid nitrogen for 6 minutes; then taken out and placed in a freeze dryer for vacuum freeze drying to obtain wrinkled graphene.

[0049] The preparation method of the modified carbon fiber comprises the following steps: immersing a carbon fiber with a length of 2 mm in a silica sol with a solid content of 25%, and ultrasonically treating it for 1.5 hours, then taking out the carbon fiber, placing it in a centrifuge for centrifugal treatment for 3 minutes, and then vacuum drying it; then placing the obtained carbon fiber in a calcining furnace, heating it to 580°C under a nitrogen atmosphere, keeping it warm for 2.5 hours, and cooling it to room temperature to obtain the modified carbon fiber.

[0050] The preparation method of PE film layer 1 is the same as that of Example 1.

[0051] The preparation method of the HTNK-based deoxidizer packaging material in this embodiment is the same as that in Example 1.

[0052] Embodiment 4: A deoxidizer packaging material based on HTNK, such as Figure 1-2 As shown, it includes a PE film layer 1, and the upper and lower surfaces of the PE film layer 1 are connected to HTNK layers 2 through adhesives, and one side of the HTNK layer 2 away from the PE film layer 1 is connected to a PE waterproof and breathable membrane layer 3 through adhesives.

[0053] HTNK layer 2 is a PET dot pattern non-woven fabric layer, and the weight of the PET dot pattern non-woven fabric layer is 40g / m 2 .

[0054] The PE film layer 1 is provided with a plurality of air holes 11 in a matrix. The thickness of the PE film layer 1 is 35 μm. The diameter of the air holes 11 is 0.6 mm. The distance between any two adjacent air holes 11 is 1.2 times the diameter of the air holes 11 .

[0055] The thickness of the PE waterproof and breathable membrane layer 3 is 15 μm.

[0056] In this embodiment, the PE film layer 1 includes the following raw materials in parts by weight: 100 parts of high-density polyethylene, 15 parts of metallocene polyethylene, 1.3 parts of wrinkled graphene, 3 parts of modified carbon fiber, 0.15 parts of silane coupling agent KH550, and 0.2 parts of antioxidant 168.

[0057] The method for preparing the wrinkled graphene comprises the following steps: A graphene oxide aqueous solution with a concentration of 1 mg / mL was prepared; the graphene oxide aqueous solution was then subjected to ultrasonic treatment for 3 hours at a power of 1000 W; The graphene oxide aqueous solution after ultrasonic treatment was placed in a 2 mL vial, and then frozen in liquid nitrogen for 3 minutes; then taken out and placed in a freeze dryer for vacuum freeze drying to obtain wrinkled graphene.

[0058] The preparation method of the modified carbon fiber comprises the following steps: immersing a carbon fiber with a length of 2 mm in a silica sol with a solid content of 25%, and ultrasonically treating it for 1 hour, then taking out the carbon fiber, placing it in a centrifuge for centrifugal treatment for 3 minutes, and then vacuum drying it; then placing the obtained carbon fiber in a calcining furnace, heating it to 550°C under a nitrogen atmosphere, keeping it warm for 3 hours, and cooling it to room temperature to obtain the modified carbon fiber.

[0059] The preparation method of PE film layer 1 is the same as that of Example 2.

[0060] The preparation method of the HTNK-based deoxidizer packaging material in this embodiment is the same as that in Example 2.

[0061] Embodiment 5: Different from the embodiment 1, the thickness of the PE film layer 1 is 50 μm; the thickness of the PE waterproof and breathable membrane layer 3 is 10 μm.

[0062] Embodiment 6: Different from Example 1, the thickness of the PE film layer 1 is 20 μm; the thickness of the PE waterproof and breathable membrane layer 3 is 12 μm.

[0063] Embodiment 7: Different from Example 1, the thickness of the PE film layer 1 is 40 μm; the thickness of the PE waterproof and breathable membrane layer 3 is 12 μm.

[0064] Different from Example 4, the PE film layer includes the following raw materials in parts by weight: 100 parts of high-density polyethylene, 15 parts of metallocene polyethylene, 4.3 parts of wrinkled graphene, 0.15 parts of silane coupling agent KH550, and 0.2 parts of antioxidant 168.

[0065] Different from Example 4, the PE film layer includes the following raw materials in parts by weight: 100 parts of high-density polyethylene, 15 parts of metallocene polyethylene, 4.3 parts of modified carbon fiber, 0.15 parts of silane coupling agent KH550, and 0.2 parts of antioxidant 168.

[0066] Different from Example 4, the PE film layer 1 includes the following raw materials in parts by weight: 100 parts of high-density polyethylene, 15 parts of metallocene polyethylene, 1.3 parts of graphene, 3 parts of carbon fiber, 0.15 parts of silane coupling agent KH550, and 0.2 parts of antioxidant 168.

[0067] Performance Test: According to GB / T1040.1-2018 "Determination of Tensile Properties of Plastics", the elongation at break and tensile strength of the materials used for the PE films prepared in Examples 1-4 and Comparative Examples 1-3 were tested. The specific test results are shown in Table 1.

[0068] Table 1: Elongation at break / % Tensile strength / MPa Example 1 555 52.2 Example 2 583 48.8 Example 3 565 48.2 Example 4 540 47.9 Comparative Example 1 430 42.1 Comparative Example 2 467 40.2 Comparative Example 3 393 38.7 It can be seen from Table 1 that the deoxidizer packaging material prepared by the method of the present invention has excellent mechanical properties. By comparing Comparative Examples 1-3 with Example 4, it can be seen that the elongation at break and tensile strength can be significantly improved by combining the wrinkled graphene prepared by the method of the present invention with the modified carbon fiber to prepare the PE film layer.

[0069] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A deoxidizer packaging material based on HTNK, characterized in that: The deoxidizer packaging material comprises a PE film layer (1), wherein the upper and lower surfaces of the PE film layer (1) are connected to HTNK layers (2) via an adhesive, wherein a surface of the HTNK layer (2) away from the PE film layer (1) is connected to a PE waterproof and breathable film layer (3) via an adhesive; The HTNK layer (2) is a PET dot pattern non-woven fabric layer, and the gram weight of the PET dot pattern non-woven fabric layer is 30-45 g / m 2 ; The PE film layer (1) is provided with a plurality of air permeable holes (11) in a matrix manner, and the thickness of the PE film layer (1) is 20-50 μm; The thickness of the PE waterproof and breathable membrane layer (3) is 10-15 μm.

2. The HTNK-based deoxidizer packaging material according to claim 1, characterized in that: The diameter of the air holes (11) is 0.5-0.8 mm; the distance between any two adjacent air holes (11) is 1-1.5 times the diameter of the air holes (11).

3. The HTNK-based deoxidizer packaging material according to claim 1, characterized in that: The PE film layer (1) comprises the following raw materials in parts by weight: 100 parts of high-density polyethylene, 10-15 parts of metallocene polyethylene, 1-1.6 parts of wrinkled graphene, 3-5.5 parts of modified carbon fiber, 0.1-0.2 parts of silane coupling agent, and 0.1-0.3 parts of antioxidant.

4. The HTNK-based deoxidizer packaging material according to claim 3, characterized in that: The method for preparing the wrinkled graphene comprises the following steps: A graphene oxide aqueous solution with a concentration of 1-3 mg / mL is prepared; and the graphene oxide aqueous solution is subjected to ultrasonic treatment for 2-3 hours at a power of 500-1000 W; The graphene oxide aqueous solution after ultrasonic treatment is placed in a 2-5 mL vial, and then placed in liquid nitrogen for freezing for 3-6 minutes; then taken out and placed in a freeze dryer for vacuum freeze drying to obtain the wrinkled graphene.

5. The HTNK-based deoxidizer packaging material according to claim 3, characterized in that: The preparation method of the modified carbon fiber comprises the following steps: immersing carbon fiber with a length of 1.5-2 mm in silica sol and ultrasonically treating it for 1-2 hours, then taking out the carbon fiber, placing it in a centrifuge for centrifugal treatment for 2-3 minutes, and then vacuum drying it; then placing the obtained carbon fiber in a calcining furnace, heating it to 550-600° C. in a nitrogen atmosphere, calcining it at this temperature for 2.5-3.5 hours, and cooling it to room temperature to obtain the modified carbon fiber.

6. The HTNK-based deoxidizer packaging material according to claim 3, characterized in that: The silane coupling agent is at least one of KH550 and KH560; the antioxidant is antioxidant 168 or antioxidant 1010.

7. The HTNK-based deoxidizer packaging material according to claim 3, characterized in that: The method for preparing the PE film layer (1) comprises the following steps: The wrinkled graphene, modified carbon fiber and silane coupling agent are placed in a high-speed mixer and mixed for 1.5-2 hours, and then the obtained material is mixed evenly with high-density polyethylene, metallocene polyethylene and antioxidant, and granulated by a twin-screw extruder to obtain a masterbatch; and then the obtained masterbatch is put into a casting machine for casting to obtain a PE film; Then, a punching device is used to punch a plurality of air permeable holes (11) in a matrix form on the PE film to obtain a PE film layer (1).

8. The HTNK-based deoxidizer packaging material according to claim 7, characterized in that: The twin-screw extruder has five heating sections, and the heating temperatures are 190-195°C, 195-200°C, 200-205°C, 205-210°C, and 210-215°C, respectively.

9. A method for preparing a HTNK-based deoxidizer packaging material as claimed in any one of claims 1 to 8, characterized in that: The following steps are involved: S1: coating the upper and lower surfaces of the PE film layer (1) with adhesive, then bonding the HTNK layer (2) to the upper and lower surfaces of the PE film layer (1), and then placing the HTNK layer (2) in a dry laminating machine for lamination; S2: coating the PE waterproof and breathable film layer (3) with adhesive on the side facing the HTNK layer (2), and bonding it to the corresponding HTNK layer (2), and then placing it in a dry laminating machine for lamination; and then aging it at 30-45° C. for 24-30 hours to obtain the deoxidizer packaging material.

Images