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Manufacturing method and application of PAA dried powder

A manufacturing method and dry powder technology, applied in the field of electronics, can solve the problems of uncontrollable product usage, inconsistent solid content, inconvenient weighing, transportation and mixing, etc., and achieve the effects of quality control, convenient weighing and good quality.

Inactive Publication Date: 2018-11-16
宜兴市东山新型材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are mainly liquid products on the market, but it is inconvenient to weigh, transport and mix materials. The solid content is inconsistent, and the use of the product is uncontrollable.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Take liquid PAA with a molecular weight of 3 million units, stir continuously in the container, heat it to about 80°C with natural gas, transport it to the spray tower with a diaphragm pump, use pressure spray to granulate, and output the PAA dried by the spray tower to the spray tower in time Packed in aggregate bags, the relative humidity in the air is controlled at 70%, and the product is vacuumized after packaging.

Embodiment 2

[0019] Take liquid PAA with a molecular weight of 3 million units and keep stirring in the container, heat it up to about 80°C with electric heating, transport it to the spray tower with an anti-clogging pump, use pressure spray to granulate, and output spray of PAA after drying in the spray tower After the tower, it is packed with aggregate bags in time, the relative humidity in the air is controlled at 65%, and the product is vacuumized after packaging.

Embodiment 3

[0021] Take liquid PAA with a molecular weight of 3 million units and keep stirring in the container, heat it up to about 80°C with electric heating, transport it to the spray tower with an anti-clogging pump, use pressure spray to granulate, and output spray of PAA after drying in the spray tower After the tower, it is packed with aggregate bags in time, the relative humidity in the air is controlled at 68%, and the product is vacuumized after packaging.

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PUM

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Abstract

The invention discloses a manufacturing method of PAA dried powder. The manufacturing method mainly comprises the steps of constantly stirring a liquid PAA with molecular weight being 3 million unitsin a container, heating to about 80 DEG C all the way, and transmitting the liquid to a spray tower by a pump; employing pressure spray granulation after the liquid PAA is transmitted to the spray tower, wherein the pressure and the spray quantity are adjusted according to evaporation quantity; and packaging the PAA with a collection bag after the PAA dried by the spray tower is output from the spray tower, wherein the relative humidity in air during production is 80% or below. The invention also discloses application of the PAA dried powder. The PAA dried powder provided by the invention is used for a lithium electronic positive / negative material binding agent; and the dried powder is more convenient to use, the constituent is better to control, and thus, the stability of a lithium battery product is helped.

Description

technical field [0001] The invention belongs to the field of electronics, and in particular relates to a method for producing PAA dry powder and its application. Background technique [0002] Lithium battery is a representative of the rapid development of modern electronic technology, which makes many electronic products more powerful, lighter in weight, and more convenient to use, and the power, capacity, and charging and discharging speed are still improving. However, there is a bottleneck in the manufacturing technology. How to bond the positive and negative materials of the lithium battery to the carrier electronic aluminum foil, the bonding strength must be high, the electrical properties must be good, and the compatibility between the production and the positive and negative materials must be good, but it cannot To participate in the reaction, scientific and technological workers have carried out arduous exploration in decades, from dextrin, methyl cellulose, carboxyme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/62H01M10/0525
CPCH01M4/621H01M10/0525Y02E60/10
Inventor 尤志伟
Owner 宜兴市东山新型材料有限公司