Battery slurry dispersant as well as preparation method and application thereof
A technology of dispersant and slurry, which is applied in the direction of battery electrodes, circuits, electrical components, etc., can solve the problems of difficult control of components, complicated materials, and many steps of dispersant, so as to achieve less usage, increase productivity, and reduce production costs Effect
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Example Embodiment
[0046] Example 1
[0047] This embodiment is the preparation process of the dispersant, and the preparation process includes batching, reaction and product pH adjustment:
[0048] (1) Ingredients
[0049] The raw materials and their mass parts are:
[0050] a) 100 parts of acrylic
[0051] b) 50 parts of maleic anhydride
[0052] c) 20 parts of 2-methyl-2-acrylic acid-2-hydroxyethyl phosphate
[0053] d) 20 parts of polyoxyethylene allyl ester macromonomer
[0054] e) Hydrogen peroxide-lithium sulfite redox initiation system:
[0055] Among them, 0.5 part of hydrogen peroxide solution with 18% mass concentration
[0056] 0.5 parts of lithium sulfite aqueous solution with a mass concentration of 36%
[0057] The above-mentioned a), b), c) and d) four kinds of raw materials are separately prepared with deionized water to form an aqueous solution with a mass concentration of 60%;
[0058] (2) Reaction
[0059] Using a multi-port reactor connected with a reflux device, each container containing the...
Example Embodiment
[0062] Example 2
[0063] The preparation process of the dispersant in this example is different from that in Example 1:
[0064] 1) Raw materials and mass parts:
[0065] a) 100 parts of acrylic
[0066] b) 80 parts of maleic anhydride
[0067] c) 30 parts of 2-methyl-2-acrylic acid-2-hydroxyethyl ester phosphate
[0068] d) 30 parts of polyoxyethylene allyl ester macromonomer
[0069] e) Hydrogen peroxide-lithium sulfite redox initiation system:
[0070] Among them, 1.5 parts of hydrogen peroxide solution with 20% mass concentration
[0071] 1.5 parts of lithium sulfite aqueous solution with a mass concentration of 40%
[0072] 2) The reaction process of dispersant preparation:
[0073] The dropping time of the raw materials is 45min. The temperature in the reactor during the dropping process is between 65°C. After the dropping is completed, the reaction is kept at 65°C for 2.2h; after the reaction, the pH of the solution is adjusted with a 65% lithium hydroxide aqueous solution. The value...
Example Embodiment
[0074] Example 3
[0075] The preparation process of the dispersant in this example is different from that in Example 1 in:
[0076] 1) Raw materials and mass parts:
[0077] a) 100 parts of acrylic
[0078] b) 100 parts of maleic anhydride
[0079] c) 40 parts of 2-methyl-2-acrylic acid-2-hydroxyethyl ester phosphate
[0080] d) 40 parts of polyoxyethylene allyl ester macromonomer
[0081] e) Hydrogen peroxide-lithium sulfite redox initiation system:
[0082] Among them, 2.0 parts of hydrogen peroxide solution with a mass concentration of 30%
[0083] 2.0 parts of lithium sulfite aqueous solution with 70% mass concentration
[0084] 2) The reaction process of dispersant preparation:
[0085] The dropping time of the raw materials is 55min. The temperature in the reactor during the dropping process is between 70°C. After the dropping is completed, the reaction is kept at 70°C for 2h; after the reaction, the pH value of the solution is adjusted to a concentration of 70% lithium carbonate aqueo...
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