Water-based binder as well as preparation method and application thereof

A water-based binder and initiator technology, applied in the direction of binder types, nitrile copolymer binders, structural parts, etc., can solve the problems of oil-based binder pollution, affecting the efficiency of the coating process, etc., to improve efficiency , There is no environmental pollution problem, the effect of convenient recycling

Inactive Publication Date: 2018-07-13
SHENZHEN MOTTCELL NEW ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the above situation, the present invention provides a water-based binder, a preparation method and application of the water-based binder, to solve the problem that the oily binder is seriously polluted and affects the efficiency of the coating process

Method used

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  • Water-based binder as well as preparation method and application thereof
  • Water-based binder as well as preparation method and application thereof

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preparation example Construction

[0039] see figure 1 , the invention provides the preparation method of above-mentioned water-based binder, comprising:

[0040] Prepare each raw material according to the above-mentioned raw material types and ratios;

[0041] Add all the emulsifier and deionized water to the reactor, stir to make it evenly mixed to send the emulsification reaction;

[0042] Heating to 55-60°C while feeding nitrogen to eliminate oxygen in the reactor;

[0043] Add part of isooctyl acrylate, acrylonitrile and initiator into the reactor, and heat to 65-70°C;

[0044] After the polymerization reaction, add the rest of the isooctyl acrylate, acrylonitrile and initiator dropwise to the system simultaneously;

[0045] After the dropwise addition is complete, continue to react for 20-25 minutes;

[0046] The temperature is lowered to 40-45°C, and then ammonia water is added to the system to make the pH of the solution reach 7.0-8.0, and the water-based binder is obtained after cooling.

[0047] ...

Embodiment 1

[0056] A water-based binder, the raw materials of the water-based binder include isooctyl acrylate, acrylonitrile, an emulsifier, and an initiator, and the proportions of each component by weight percentage are 20%, 27%, 0.5%, and 0.9% , the remaining components are deionized water, the emulsifier is a mixed emulsification system of anionic emulsifier and nonionic emulsifier, the mass ratio of the anionic emulsifier and the nonionic emulsifier is 3.5:1, the trigger The agent is ammonium sulfate-sodium bisulfite redox initiator system.

[0057] The preparation method of the aqueous binder of the present embodiment:

[0058] Prepare each raw material according to the above-mentioned raw material types and ratios;

[0059] Add all the emulsifier and deionized water into the reactor, stir to make it evenly mixed to send the emulsification reaction, and the stirring time is 1h;

[0060] Heating to 55°C while feeding nitrogen to get rid of oxygen in the reactor;

[0061] Add part...

Embodiment 2

[0073] A water-based binder, the raw materials of the water-based binder include isooctyl acrylate, acrylonitrile, an emulsifier, and an initiator, and the proportions of each component by weight percentage are 25%, 25%, 0.6%, and 1.2% in sequence , the remaining components are deionized water, the emulsifier is a mixed emulsification system of anionic emulsifier and nonionic emulsifier, the mass ratio of the anionic emulsifier and the nonionic emulsifier is 4:1, the trigger The agent is ammonium sulfate-sodium bisulfite redox initiator system.

[0074] The preparation method of the aqueous binder of the present embodiment:

[0075] Prepare each raw material according to the above-mentioned raw material types and ratios;

[0076] Add all the emulsifier and deionized water into the reactor, stir to mix evenly to send the emulsification reaction, the stirring time is 1.3h;

[0077] Heating to 58° C. while feeding nitrogen to get rid of oxygen in the reactor;

[0078] Add part...

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Abstract

The invention provides a water-based binder. The water-based binder comprises the following raw materials in percentages by weight: 20%-25% of 2-ethylhexyl acrylate, 23%-27% of acrylonitrile, 0.5%-0.8% of an emulsifier, 0.8%-1.2% of an initiator, and the balance of deionized water, wherein the emulsifier is a mixed emulsification system of an anionic emulsifier and a nonionic emulsifier, and the initiator is an ammonium sulfate-sodium hydrogen sulfite redox initiator system. The invention also provides a preparation method and application of the above water-based binder. The method provided bythe invention can solve the problems that an oily binder has serious pollution and affects efficiency of a coating process in the prior art.

Description

technical field [0001] The invention relates to the technical field of lithium batteries, in particular to a water-based binder, a preparation method and an application of the water-based binder. Background technique [0002] With the rapid development of human industry, environmental pollution problems are becoming more and more serious, including the greenhouse effect, photochemical smog events, and air pollution. In recent years, there have been large-scale and long-term smog in our country, which has made people pay more attention to environmental issues. [0003] One of the main causes of smog is the emission of vehicle exhaust. Nitrogen and sulfur oxides, incompletely combusted hydrocarbons and solid particles contained in automobile exhaust are one of the culprits causing environmental pollution. Therefore, the development of new energy vehicles and the use of electricity to drive vehicles have become the main way to reduce pollutant emissions, avoid the formation o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/20C08F220/18C08F220/44C08F2/26C08F2/30H01M4/62H01M10/0525
CPCC08F2/26C08F2/30C08F220/18C08F220/1808C08F220/44C09J133/20H01M4/622H01M10/0525Y02E60/10
Inventor 陈明军
Owner SHENZHEN MOTTCELL NEW ENERGY TECH CO LTD
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