A preparation method for cationic UV inkjet color paste for lithium battery outer aluminum film

Abstract

The present invention discloses a method for preparing a cationic UV inkjet color paste for lithium battery outer aluminum film coating, comprising the following steps: weighing raw materials by weight: 35-45 parts of UV monomer, 4-7 parts of dispersant, 3-5 parts of pigment, 5-9 parts of glass fiber agent doped with flaky talc, and 2-4 parts of silane modifier; adding the raw materials in sequence to a blender and stirring and mixing thoroughly, and then ball milling in a ball mill at a speed of 300 r / min for 1 hour to obtain the UV inkjet color paste. The UV inkjet color paste of the present invention uses a UV monomer in combination with a dispersant and a pigment, and by adding a glass fiber agent doped with flaky talc and a silane modifier to adjust and coordinate with each other, the adhesion performance of the product is enhanced, and the scratch resistance and temperature resistance of the product are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of inkjet color pastes, and in particular to a method for preparing cationic UV inkjet color paste for lithium battery outer-coated aluminum film. Background Art

[0002] Existing lithium battery packaging primarily involves wrapping the battery with plastic PET film, then adding colorant to the glue to create a colored adhesive film. This method uses solvent glue, which not only releases a large amount of solvent but also results in a single color for the battery packaging, requiring color adjustment based on the color of the adhesive film. Inkjet printing, on the other hand, not only solves the problem of color diversity, but also reduces solvent evaporation. Existing UV inkjet colorants have poor film adhesion, and improving adhesion can lead to poor scratch and temperature stability, limiting product efficiency. Summary of the Invention

[0003] In view of the defects of the prior art, the purpose of the present invention is to provide a cationic UV inkjet color paste for lithium battery outer aluminum film and a preparation method thereof, so as to solve the problems raised in the above background technology.

[0004] The present invention solves the technical problem by adopting the following technical solutions:

[0005] The present invention provides a method for preparing a cationic UV inkjet color paste for lithium battery outer aluminum film, comprising the following steps:

[0006] Weigh the raw materials according to weight:

[0007] 35-45 parts of UV monomer, 4-7 parts of dispersant, 3-5 parts of pigment, 5-9 parts of glass fiber agent doped with flaky talc, and 2-4 parts of silane regulator;

[0008] The raw materials were added into a blender in sequence and stirred thoroughly, and then ball-milled in a ball mill at a speed of 300 r / min for 1 h. After the ball milling was completed, a UV inkjet color paste was obtained.

[0009] Preferably, the cationic UV inkjet paste comprises the following raw materials in parts by weight:

[0010] 40 parts of UV monomer, 5.5 parts of dispersant, 4 parts of pigment, 7 parts of glass fiber agent doped with flaky talc, and 3 parts of silane regulator.

[0011] Preferably, the UV monomer is 1,6-hexanediol diacrylate; the dispersant is TEGO-675; and the pigment is carbon black.

[0012] Preferably, the preparation method of the glass fiber agent doped with flaky talc is:

[0013] S01: heat-treating flaky talc at 210-230°C for 10-15 minutes, cooling to 50-55°C at a rate of 2-5°C / min, immersing in a sufficient amount of sodium silicate solution and mixing thoroughly, followed by filtration and drying to obtain sodium silicate-modified talc;

[0014] S02: 4-7 parts of glass fiber, 1-3 parts of lanthanum nitrate solution, 1-2 parts of carboxymethyl cellulose and 4-7 parts of sodium lignin sulfonate solution are stirred and mixed thoroughly to obtain a glass fiber solution;

[0015] S03: ball milling the glass fiber liquid and sodium silicate-modified talc according to a weight ratio of 2:5, with a ball milling speed of 300-500 r / min for 1-2 hours. After the ball milling is completed, washing and drying are performed to obtain a glass fiber agent doped with flaky talc.

[0016] Preferably, the mass fraction of the sodium silicate solution is 10-15%.

[0017] Preferably, the mass fraction of the lanthanum nitrate solution is 2-5%; the mass fraction of the sodium lignin sulfonate solution is 8-12%.

[0018] Preferably, the preparation method of the silane regulator is:

[0019] S101: chitosan, deionized water, and glacial acetic acid are mixed uniformly in a weight ratio of 5:11:1, and then a sodium citrate solution containing 5-10% of the total amount of chitosan and titanium oxide containing 2-5% of the total amount of chitosan are added and stirred thoroughly to obtain a chitosan-modified solution;

[0020] S102: Add 2-5 parts of silane coupling agent to 4-7 parts of chitosan modified liquid and stir to mix thoroughly to obtain a silane regulator.

[0021] Preferably, the silane coupling agent is silane coupling agent KH560.

[0022] Preferably, the mass fraction of the sodium citrate solution is 10-15%.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The UV inkjet color paste of the present invention adopts UV monomer, dispersant and pigment, and is mutually adjusted and coordinated by adding glass fiber agent doped with flaky talc powder and silane regulator to enhance the adhesion performance of the product and improve the scratch resistance stability and temperature resistance stability of the product. The flaky talc powder in the glass fiber agent doped with flaky talc powder is heat-treated at 210-230°C for 10-15min, then cooled to 50-55°C at a rate of 2-5°C / min, and then immersed in a sufficient amount of sodium silicate solution to optimize the active efficiency of the talc powder. The sodium silicate solution is then used to optimize the stability of the talc powder, while the glass fiber, lanthanum nitrate solution and carboxymethyl fiber are heated at 210-230°C for 10-15min. The glass fiber liquid adjusted by mutual adjustment of cellulose and sodium lignin sulfonate solution is improved by sodium silicate-modified talc agent, thereby obtaining a glass fiber agent distribution system doped with flaky talc. The flaky talc distribution system enhances the adhesion performance of the product, while the glass fiber reinforcement and adjustment optimizes the temperature resistance and scratch resistance stability of the system. The silane regulator adopts chitosan through the formulation of sodium citrate solution and titanium oxide, and then synergistically acts with a silane coupling agent, so that the obtained silane regulator enhances the interface of the system raw materials, thereby further enhancing the synergistic effect with the glass fiber agent doped with flaky talc, and further improving the scratch resistance stability and temperature resistance stability of the product. DETAILED DESCRIPTION

[0025] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with specific embodiments. Obviously, the described embodiments are only 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 making creative efforts are within the scope of protection of the present invention.

[0026] A cationic UV inkjet color paste for lithium battery outer aluminum film of this embodiment includes the following raw materials in parts by weight:

[0027] 35-45 parts of UV monomer, 4-7 parts of dispersant, 3-5 parts of pigment, 5-9 parts of glass fiber agent doped with flaky talc, and 2-4 parts of silane regulator.

[0028] The cationic UV inkjet paste of this embodiment includes the following raw materials in parts by weight:

[0029] 40 parts of UV monomer, 5.5 parts of dispersant, 4 parts of pigment, 7 parts of glass fiber agent doped with flaky talc, and 3 parts of silane regulator.

[0030] In this embodiment, the UV monomer is 1,6-hexanediol diacrylate; the dispersant is TEGO-675; and the pigment is carbon black.

[0031] The preparation method of the glass fiber agent doped with flaky talc in this embodiment is as follows:

[0032] S01: heat-treating flaky talc at 210-230°C for 10-15 minutes, cooling to 50-55°C at a rate of 2-5°C / min, immersing in a sufficient amount of sodium silicate solution and mixing thoroughly, followed by filtration and drying to obtain sodium silicate-modified talc;

[0033] S02: 4-7 parts of glass fiber, 1-3 parts of lanthanum nitrate solution, 1-2 parts of carboxymethyl cellulose and 4-7 parts of sodium lignin sulfonate solution are stirred and mixed thoroughly to obtain a glass fiber solution;

[0034] S03: ball milling the glass fiber liquid and sodium silicate-modified talc according to a weight ratio of 2:5, with a ball milling speed of 300-500 r / min for 1-2 hours. After the ball milling is completed, washing and drying are performed to obtain a glass fiber agent doped with flaky talc.

[0035] The mass fraction of the sodium silicate solution in this embodiment is 10-15%.

[0036] The mass fraction of the lanthanum nitrate solution in this embodiment is 2-5%; the mass fraction of the sodium lignin sulfonate solution is 8-12%.

[0037] The preparation method of the silane regulator of this embodiment is:

[0038] S101: chitosan, deionized water, and glacial acetic acid are mixed uniformly in a weight ratio of 5:11:1, and then a sodium citrate solution containing 5-10% of the total amount of chitosan and titanium oxide containing 2-5% of the total amount of chitosan are added and stirred thoroughly to obtain a chitosan-modified solution;

[0039] S102: Add 2-5 parts of silane coupling agent to 4-7 parts of chitosan modified liquid and stir to mix thoroughly to obtain a silane regulator.

[0040] The silane coupling agent in this embodiment is silane coupling agent KH560.

[0041] The mass fraction of the sodium citrate solution in this embodiment is 10-15%.

[0042] The method for preparing a cationic UV inkjet color paste for lithium battery outer aluminum film of this embodiment includes the following steps:

[0043] The raw materials were added into a blender in sequence and stirred thoroughly, and then ball-milled in a ball mill at a speed of 300 r / min for 1 h. After the ball milling was completed, a UV inkjet color paste was obtained.

[0044] Example 1.

[0045] A cationic UV inkjet color paste for lithium battery outer aluminum film of this embodiment includes the following raw materials in parts by weight:

[0046] 35 parts of UV monomer, 4 parts of dispersant, 3 parts of pigment, 5 parts of glass fiber agent doped with flaky talc, and 2 parts of silane regulator.

[0047] In this embodiment, the UV monomer is 1,6-hexanediol diacrylate; the dispersant is TEGO-675; and the pigment is carbon black.

[0048] The preparation method of the glass fiber agent doped with flaky talc in this embodiment is as follows:

[0049] S01: The flaky talc powder is first heat-treated at 210°C for 10 minutes, then cooled to 50°C at a rate of 2°C / min, and then immersed in a sufficient amount of sodium silicate solution and mixed thoroughly, followed by suction filtration and drying to obtain a sodium silicate-modified talc powder;

[0050] S02: 4 parts of glass fiber, 1 part of lanthanum nitrate solution, 1 part of carboxymethyl cellulose and 4 parts of sodium lignin sulfonate solution are stirred and mixed thoroughly to obtain a glass fiber solution;

[0051] S03: ball milling the glass fiber liquid and sodium silicate-modified talc according to a weight ratio of 2:5, with a ball milling speed of 300 r / min for 1 hour. After the ball milling is completed, the mixture is washed with water and dried to obtain a glass fiber agent doped with flaky talc.

[0052] The mass fraction of the sodium silicate solution in this embodiment is 10%.

[0053] The mass fraction of the lanthanum nitrate solution in this embodiment is 2%; the mass fraction of the sodium lignin sulfonate solution is 8%.

[0054] The preparation method of the silane regulator of this embodiment is:

[0055] S101: chitosan, deionized water, and glacial acetic acid are mixed uniformly in a weight ratio of 5:11:1, and then a sodium citrate solution containing 5% of the total amount of chitosan and titanium oxide containing 2% of the total amount of chitosan are added and stirred thoroughly to obtain a chitosan-modified solution;

[0056] S102: Add 2 parts of silane coupling agent to 4 parts of chitosan modified liquid and stir to mix thoroughly to obtain a silane regulator.

[0057] The silane coupling agent in this embodiment is silane coupling agent KH560.

[0058] The mass fraction of the sodium citrate solution in this embodiment is 10%.

[0059] The method for preparing a cationic UV inkjet color paste for lithium battery outer aluminum film of this embodiment includes the following steps:

[0060] The raw materials were added into a blender in sequence and stirred thoroughly, and then ball-milled in a ball mill at a speed of 300 r / min for 1 h. After the ball milling was completed, a UV inkjet color paste was obtained.

[0061] Example 2.

[0062] A cationic UV inkjet color paste for lithium battery outer aluminum film of this embodiment includes the following raw materials in parts by weight:

[0063] 45 parts of UV monomer, 7 parts of dispersant, 5 parts of pigment, 9 parts of glass fiber agent doped with flaky talc, and 4 parts of silane regulator.

[0064] In this embodiment, the UV monomer is 1,6-hexanediol diacrylate; the dispersant is TEGO-675; and the pigment is carbon black.

[0065] The preparation method of the glass fiber agent doped with flaky talc in this embodiment is as follows:

[0066] S01: The flaky talc powder is first heat-treated at 230°C for 15 minutes, then cooled to 55°C at a rate of 5°C / min, and then immersed in a sufficient amount of sodium silicate solution and mixed thoroughly, followed by suction filtration and drying to obtain a sodium silicate-modified talc powder;

[0067] S02: 7 parts of glass fiber, 3 parts of lanthanum nitrate solution, 2 parts of carboxymethyl cellulose and 7 parts of sodium lignin sulfonate solution were stirred and mixed thoroughly to obtain a glass fiber solution;

[0068] S03: ball milling the glass fiber liquid and sodium silicate-modified talc powder in a weight ratio of 2:5 at a ball milling speed of 500 r / min for 2 h. After the ball milling is completed, the mixture is washed with water and dried to obtain a glass fiber agent doped with flaky talc powder.

[0069] The mass fraction of the sodium silicate solution in this embodiment is 15%.

[0070] The mass fraction of the lanthanum nitrate solution in this embodiment is 5%; the mass fraction of the sodium lignin sulfonate solution is 12%.

[0071] The preparation method of the silane regulator of this embodiment is:

[0072] S101: chitosan, deionized water, and glacial acetic acid are mixed uniformly in a weight ratio of 5:11:1, and then a sodium citrate solution containing 10% of the total amount of chitosan and titanium oxide containing 5% of the total amount of chitosan are added and stirred thoroughly to obtain a chitosan-modified solution;

[0073] S102: Add 5 parts of silane coupling agent to 7 parts of chitosan modified liquid and stir to mix thoroughly to obtain a silane regulator.

[0074] The silane coupling agent in this embodiment is silane coupling agent KH560.

[0075] The mass fraction of the sodium citrate solution in this embodiment is 15%.

[0076] The method for preparing a cationic UV inkjet color paste for lithium battery outer aluminum film of this embodiment includes the following steps:

[0077] The raw materials were added into a blender in sequence and stirred thoroughly, and then ball-milled in a ball mill at a speed of 300 r / min for 1 h. After the ball milling was completed, a UV inkjet color paste was obtained.

[0078] Example 3.

[0079] A cationic UV inkjet color paste for lithium battery outer aluminum film of this embodiment includes the following raw materials in parts by weight:

[0080] 40 parts of UV monomer, 5.5 parts of dispersant, 4 parts of pigment, 7 parts of glass fiber agent doped with flaky talc, and 3 parts of silane regulator.

[0081] In this embodiment, the UV monomer is 1,6-hexanediol diacrylate; the dispersant is TEGO-675; and the pigment is carbon black.

[0082] The preparation method of the glass fiber agent doped with flaky talc in this embodiment is as follows:

[0083] S01: The flaky talc powder is first heat-treated at 220°C for 12 minutes, then cooled to 52°C at a rate of 3.5°C / min, and then immersed in a sufficient amount of sodium silicate solution and mixed thoroughly, followed by suction filtration and drying to obtain a sodium silicate-modified talc powder;

[0084] S02: 5.5 parts of glass fiber, 2 parts of lanthanum nitrate solution, 1.5 parts of carboxymethyl cellulose and 5.5 parts of sodium lignin sulfonate solution were stirred and mixed thoroughly to obtain a glass fiber solution;

[0085] S03: ball milling the glass fiber liquid and sodium silicate-modified talc according to a weight ratio of 2:5, with a ball milling speed of 400 r / min for 1.5 hours. After the ball milling is completed, the mixture is washed with water and dried to obtain a glass fiber agent doped with flaky talc.

[0086] The mass fraction of the sodium silicate solution in this embodiment is 12.5%.

[0087] The mass fraction of the lanthanum nitrate solution in this embodiment is 3.5%; the mass fraction of the sodium lignin sulfonate solution is 10%.

[0088] The preparation method of the silane regulator of this embodiment is:

[0089] S101: chitosan, deionized water, and glacial acetic acid are mixed uniformly in a weight ratio of 5:11:1, and then a sodium citrate solution containing 7.5% of the total amount of chitosan and titanium oxide containing 3.5% of the total amount of chitosan are added and stirred thoroughly to obtain a chitosan-modified solution;

[0090] S102: Add 3 parts of silane coupling agent to 5 parts of chitosan modified liquid and stir to mix thoroughly to obtain a silane regulator.

[0091] The silane coupling agent in this embodiment is silane coupling agent KH560.

[0092] The mass fraction of the sodium citrate solution in this embodiment is 12.5%.

[0093] The method for preparing a cationic UV inkjet color paste for lithium battery outer aluminum film of this embodiment includes the following steps:

[0094] The raw materials were added into a blender in sequence and stirred thoroughly, and then ball-milled in a ball mill at a speed of 300 r / min for 1 h. After the ball milling was completed, a UV inkjet color paste was obtained.

[0095] Comparative Example 1.

[0096] The difference from Example 3 is that the glass fiber agent doped with flaky talc is not added.

[0097] Comparative Example 2.

[0098] The difference from Example 3 is that SO1 treatment was not used in the preparation of the glass fiber agent doped with flaky talc.

[0099] Comparative Example 3.

[0100] The difference from Example 3 is that no glass fiber liquid treatment is used in the preparation of the glass fiber agent doped with flaky talc.

[0101] Comparative Example 4.

[0102] The difference from Example 3 is the method for preparing the glass fiber solution: no lanthanum nitrate solution and carboxymethyl cellulose are added.

[0103] Comparative Example 5.

[0104] The difference from Example 3 is that no silane regulator is added.

[0105] The products of Examples 1-3 and Comparative Examples 1-5 were subjected to performance tests;

[0106] The products of Examples 1-3 and Comparative Examples 1-5 were scratched 50 times and placed at 65°C for 12 hours to test the scratch resistance and temperature stability of the products. The test performance is as follows:

[0107]

[0108] It can be seen from Comparative Examples 1-5 and Examples 1-3 that;

[0109] The product of Example 3 still has excellent bonding strength performance under scratching and temperature resistance conditions. At the same time, no glass fiber agent doped with flaky talc powder and no silane regulator are added to the product, and the performance of the product deteriorates more significantly. In addition, the glass fiber agent doped with flaky talc powder is not treated with SO1, no glass fiber liquid is used, and no lanthanum nitrate solution and carboxymethyl cellulose are added in the preparation of the glass fiber agent doped with flaky talc powder. The performance of the product tends to deteriorate. Only the glass fiber agent doped with flaky talc powder prepared by the method of the present invention has the most significant product performance effect.

[0110] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced therein.

[0111] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A method for preparing cationic UV inkjet color paste for lithium battery outer aluminum film, characterized in that: The following steps are involved: Weigh the raw materials according to weight: 35-45 parts of UV monomer, 4-7 parts of dispersant, 3-5 parts of pigment, 5-9 parts of glass fiber agent doped with flaky talc, and 2-4 parts of silane regulator; The raw materials were added to a blender in sequence and stirred thoroughly, and then ball-milled in a ball mill at a speed of 300 r / min for 1 hour to obtain a UV inkjet color paste. The preparation method of the glass fiber agent doped with flaky talc is as follows: S01: heat-treating flaky talc at 210-230°C for 10-15 minutes, cooling to 50-55°C at a rate of 2-5°C / min, immersing in a sufficient amount of sodium silicate solution and mixing thoroughly, followed by filtration and drying to obtain sodium silicate-modified talc; S02: 4-7 parts of glass fiber, 1-3 parts of lanthanum nitrate solution, 1-2 parts of carboxymethyl cellulose and 4-7 parts of sodium lignin sulfonate solution are stirred and mixed thoroughly to obtain a glass fiber solution; S03: ball milling the glass fiber solution and the sodium silicate-modified talc according to a weight ratio of 2:5, at a ball milling speed of 300-500 r / min, for 1-2 hours. After the ball milling is completed, the mixture is washed with water and dried to obtain a glass fiber agent doped with flaky talc; The preparation method of the silane regulator is: S101: chitosan, deionized water, and glacial acetic acid are mixed uniformly in a weight ratio of 5:11:1, and then a sodium citrate solution containing 5-10% of the total amount of chitosan and titanium oxide containing 2-5% of the total amount of chitosan are added and stirred thoroughly to obtain a chitosan-modified solution; S102: Add 2-5 parts of silane coupling agent to 4-7 parts of chitosan modified liquid and stir to mix thoroughly to obtain a silane regulator.

2. The method for preparing a cationic UV inkjet paste for lithium battery outer aluminum film according to claim 1, characterized in that: 40 parts of UV monomer, 5.5 parts of dispersant, 4 parts of pigment, 7 parts of glass fiber agent doped with flaky talc, and 3 parts of silane regulator.

3. The method for preparing a cationic UV inkjet paste for lithium battery outer aluminum film according to claim 1, characterized in that: The UV monomer is 1,6-hexanediol diacrylate; the dispersant is TEGO-675; and the pigment is carbon black.

4. The method for preparing a cationic UV inkjet paste for lithium battery outer aluminum film according to claim 1, characterized in that: The mass fraction of the sodium silicate solution is 10-15%.

5. The method for preparing a cationic UV inkjet paste for lithium battery outer aluminum film according to claim 1, characterized in that: The mass fraction of the lanthanum nitrate solution is 2-5%; the mass fraction of the sodium lignin sulfonate solution is 8-12%.

6. The method for preparing a cationic UV inkjet paste for lithium battery outer aluminum film according to claim 1, characterized in that: The silane coupling agent is silane coupling agent KH560.

7. The method for preparing a cationic UV inkjet color paste for lithium battery outer aluminum film according to claim 1, characterized in that: The mass fraction of the sodium citrate solution is 10-15%.

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