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Synthesizing method of reticular cross-linked zinc polyacrylic acid and using method of synthesized product

A polyacrylic acid zinc, network cross-linking technology, applied in the direction of alkaline storage battery, nickel storage battery, etc., can solve the problems such as no explicit indication, achieve energy saving and emission reduction contribution, improve energy use efficiency, and increase power output

Active Publication Date: 2016-11-16
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0041] The application numbers disclosed by the Chinese Patent Office are 99123071.X; 99126337.5; 99126336.7; 200810050665.8; The patent office application number is 201210570162.X, which discloses the lithium salt of cross-linked polyacrylic acid for improving the capacity and safety of button nickel-hydrogen batteries; D-type nickel-hydrogen battery "shallow charge and shallow discharge" cycle life of more than 15,000 reports; but the cross-linked lithium polyacrylate or cross-linked potassium polyacrylate used in these two patents is linear cross-linked The salt of the network cross-linked monovalent salt is not explicitly stated in these two patents
However, so far, there are no patent publications and articles reported on the synthesis method of directly obtaining network cross-linked zinc polyacrylate while effectively suppressing or avoiding side reactions of complexation.

Method used

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  • Synthesizing method of reticular cross-linked zinc polyacrylic acid and using method of synthesized product
  • Synthesizing method of reticular cross-linked zinc polyacrylic acid and using method of synthesized product
  • Synthesizing method of reticular cross-linked zinc polyacrylic acid and using method of synthesized product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0080] For a synthetic method of network cross-linked zinc polyacrylate, the synthesis is carried out according to the following four steps and corresponding conditions.

[0081] The first step, prepare materials:

[0082] Select the water-phase synthesis method, and prepare the five raw materials required for the water-phase synthesis, including: zinc oxide, acrylic acid, N N'-methylenebisacrylamide, potassium persulfate and distilled water. Except for distilled water, the other four All chemicals are chemically pure.

[0083] The second step, identification and initial ingredients:

[0084] Zinc oxide powder in barrels is packed in ziplock bags, marked as component A. Acrylic acid was formulated as a 50 wt.% aqueous solution of acrylic acid, which was identified as component B. Potassium persulfate is formulated into a 2wt.% aqueous solution, which is identified as D component. N N'-methylenebisacrylamide was formulated into a 2wt.% aqueous solution and identified as com...

Embodiment 2

[0138] Step, operation and characterization method are identical with implementation 1; The difference between condition and characterization result and embodiment 1 is:

[0139] Ⅰ. Change the formula in the "third step" and "mixing" of Implementation 1 to: Add 5.078 kg of B component to 1 kg of A component, add 7.641 kg of C component, add 1.172 kg of D component and add 1.172 kg of E component Kilogram.

[0140] Ⅱ. Change the "replacement ratio" in the "replacement" in the "fifth step" of implementation 1 to: the dry product powder of zinc polyacrylic acid reticular cross-linking accounts for 5wt.% of the original zinc oxide feed. The particle size selection of dry powder is changed to 350 mesh ± 50 mesh.

[0141] Ⅲ. For the material characterization results in the implementation of 1 "Step 4" "Relevant characterization of the dry product powder", due to the change of the synthetic formula, the physical and chemical properties of the material change; the characteristics of ...

Embodiment 3

[0146] Step, operation and characterization method are identical with implementation 1; The difference between condition and characterization result and embodiment 1 is:

[0147] Ⅰ. Change the formula in the "third step" and "mixing" of Implementation 1 to: Add 5.909 kg of B component to 1 kg of A component, add 8.927 kg of C component, add 1.364 kg of D component and add 1.364 kg of E component Kilogram.

[0148] Ⅱ. Change the "replacement ratio" in the "replacement" in the "fifth step" of implementation 1 to: the dry product powder of zinc polyacrylic acid reticular cross-linked accounts for 3wt.% of the original zinc oxide feed. The particle size selection of dry powder is changed to 350 mesh ± 50 mesh.

[0149] Ⅲ. For the material characterization results in the implementation of 1 "Step 4" "Relevant characterization of the dry product powder", due to the change of the synthetic formula, the physical and chemical properties of the material change; the characteristics of t...

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Abstract

The invention relates to a synthesizing method of cross-linked zinc polyacrylic acid and a representative using method of the cross-linked zinc polyacrylic acid, in particular to a synthesizing method of reticular cross-linked zinc polyacrylic acid and a using method of the cross-linked zinc polyacrylic acid in batteries. According to the synthesizing method, acrylic acid serves as a monomer, zinc oxide serves as a neutralizing agent, and synthesizing of the reticular cross-linked zinc polyacrylic acid is achieved in an aqueous system under the action of a cross-linking agent and a one-component initiator. A synthesized product is used for replacing an anode active material of a nickel-zinc secondary battery, in this way, the representative using method of the cross-linked zinc polyacrylic acid is achieved, and the practicability of the cross-linked zinc polyacrylic acid in improving low-temperature power performance and self-discharge control of a nickel-zinc rechargeable battery and the like is achieved. A reference is provided for application of the cross-linked zinc polyacrylic acid in silver-zinc batteries, MnO2-zinc batteries, Edison batteries and the like. The polymerization method has the advantages of being short in process, easy to operate, high in safety, low in product cost and the like, and a basis is laid for application of the synthesized product in the fields such as non-toxic preservation of potatoes, efficient utilization of feminine sanitary towels, green mildew preventives for leather, micro-element fertilizers and accelerants.

Description

technical field [0001] The invention relates to the field of cross-linked polyacrylate polymer synthesis; in particular, it relates to a method for synthesizing network cross-linked zinc polyacrylate and the usage of the compound in batteries. Background technique [0002] Terms such as zinc acrylate polymer, zinc acrylate resin, zinc polyacrylate, and cross-linked zinc polyacrylate are ambiguous in general scientific journal titles or industrial titles. One of the reasons is the complexity of polymers, and sometimes these superordinate concepts belonging to polymers have to be used. [0003] In industry or commodity trading, macromolecules or macromolecules and polymers are used to be called "resin". The ambiguity of the title or product name adds an extra burden to researchers in searching and reading scientific and technological literature. Usually, in the retrieved title, they have to delve into the raw materials used in the text of the literature, the polymerization pr...

Claims

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Application Information

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IPC IPC(8): C08F220/06C08F222/38H01M10/30
CPCC08F220/06H01M10/30C08F222/385Y02E60/10
Inventor 孙连山吴耀明陈川易政程勇梁飞尹东明林静王立民马福元王玉潘维洁张嘉佳叶竞荣
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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