Electrodeless composite microporous membrane for polymer diaphragm

A microporous membrane and polymer technology, applied in the field of non-polar composite microporous membranes, can solve the problems of inability to meet application requirements and poor tensile strength of microporous membranes, achieve good electrophilic liquid and heat dissipation performance, wide application, process The effect of simple process operation

Active Publication Date: 2020-11-10
河南银金达新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The invention provides a non-polar composite microporous membrane for polymer diaphragms to solve the problem that existing microporous membranes have poor tensile strength and cannot meet application requirements

Method used

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  • Electrodeless composite microporous membrane for polymer diaphragm

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preparation example Construction

[0025] In an embodiment, the non-polar composite microporous membrane used for the polymer diaphragm includes the following raw materials in parts by mass: 120-160 parts of polypropylene, 1.5-2.6 parts of nucleating agent, 7-11 parts of three Trimethylol propyl methacrylate, 0.5-1.2 parts of styrene phenol polyoxyethylene ether ammonium sulfate, 5-8 parts of sodium trimethylsiliconate, and 2-4 parts of magnesium ethylate, the preparation method thereof comprises the following steps:

[0026] (1) 120-160 parts by mass of polypropylene, 1.5-2.6 parts of nucleating agent, 7-11 parts of trimethylolpropyl trimethacrylate, 0.5-1.2 parts of styrene phenol polyoxyethylene ether After mixing ammonium sulfate, 5-8 parts of sodium trimethylsiliconate, and 2-4 parts of magnesium ethoxide, stir for 18-25 minutes at a microwave power of 100-200W, a temperature of 45-52°C, and a speed of 200-300r / min , to obtain a mixed material; the nucleating agent includes one or more of a compound of a m...

Embodiment 1

[0031] A kind of electrodeless composite microporous membrane that is used for macromolecular diaphragm, with mass part as unit, comprises following raw material: 123 parts of polypropylene (the product of F401 type that Sinopec Yangzi Petrochemical Co., Ltd. provides, isotacticity is 98%) , 1.7 parts of nucleating agent (DX-Z3C model product provided by Dongguan Dingxin Plastic Raw Material Co., Ltd.), 7 parts of trimethylolpropyl trimethacrylate, 0.6 part of styrene phenol polyoxyethylene ether ammonium sulfate, 5 parts of sodium trimethylsiliconate, 2 parts of magnesium ethylate, and their preparation method comprises the following steps:

[0032] (1) 123 parts by mass of polypropylene (F401 type product provided by Sinopec Yangzi Petrochemical Co., Ltd., with an isotacticity of 98%), 1.7 parts of nucleating agent (Dongguan Dingxin Plastic Raw Materials Co., Ltd. DX-Z3C model product), 7 parts of trimethylolpropyl trimethacrylate, 0.6 parts of styrene phenol polyoxyethylene...

Embodiment 2

[0036] A kind of electrodeless composite microporous membrane that is used for macromolecular diaphragm, in mass part, comprises following raw material: 142 parts of polypropylene (the product of F401 type that Sinopec Yangzi Petrochemical Co., Ltd. provides, isotacticity is 98%) , 2 parts of nucleating agent (DX-Z3C model product provided by Dongguan Dingxin Plastic Raw Material Co., Ltd.), 10 parts of trimethylolpropyl trimethacrylate, 1 part of styrene phenol polyoxyethylene ether ammonium sulfate, 7 parts of sodium trimethylsilanolate, 3 parts of magnesium ethylate, and their preparation method comprises the following steps:

[0037] (1) 142 parts by mass of polypropylene (F401 type product provided by Sinopec Yangzi Petrochemical Co., Ltd., with an isotacticity of 98%), 2 parts of nucleating agent (Dongguan Dingxin Plastic Raw Materials Co., Ltd. Provided DX-Z3C model), 10 parts of trimethylolpropyl trimethacrylate, 1 part of styrene phenol polyoxyethylene ether ammonium ...

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Abstract

The invention discloses an electrodeless composite microporous membrane comprises the following raw materials in parts by mass: 120-160 parts of polypropylene, 1.5-2.6 parts of a nucleating agent, 7-11 parts of trimethylolpropyl trimethacrylate, 0.5-1.2 parts of styrene phenol polyoxyethylene ether ammonium sulfate, 5-8 parts of sodium trimethylsilanolate and 2-4 parts of magnesium ethoxide. The electrodeless composite microporous membrane for the polymer diaphragm provided by the invention has the advantages of continuous production, simple technological process operation, low energy consumption, no environmental pollution and the like, and the longitudinal tensile strength of the prepared electrodeless composite microporous membrane is not lower than 179.6 MPa and is at least 37.4% higher than that of the existing microporous membrane; the technical problem that a microporous membrane prepared in the prior art is poor in longitudinal tensile strength is solved.

Description

technical field [0001] The invention belongs to the technical field of membrane preparation, and in particular relates to an electrodeless composite microporous membrane used for polymer membranes. Background technique [0002] Lithium batteries have become a new generation of batteries widely used due to their advantages of high voltage, high energy, long cycle life and no pollution to the environment. As electronic products using lithium batteries continue to be miniaturized and their applications become more and more popular, the volume of lithium battery products is inevitably reduced, and the failure and accident rates are getting higher and higher. , after the volume becomes smaller, the lithium battery structure and components will be integrated and compressed in size, making the temperature rise faster and not easy to dissipate, and the corrosion effect from the electrolyte in the working environment will become more and more prominent and significant. Traditional li...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/18C08L23/12C08L71/02C08K5/5419C08K5/057C08K5/103H01M2/14H01M2/16H01M10/052B29D7/01
CPCB29D7/01C08J5/18C08J2323/12C08J2471/02C08K5/057C08K5/103C08K5/5419H01M10/052Y02E60/10
Inventor 王果连陈宝同仲宁宁袁琳王艳静
Owner 河南银金达新材料股份有限公司
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