Energy storage polymer composite film based on inorganic insulating layer modification and preparation method thereof

A technology of inorganic insulating layer and composite film, applied in coating, metal material coating process, vacuum evaporation plating, etc., can solve the problems of low energy storage performance and poor breakdown characteristics of polymer medium, and achieve energy storage performance and the effects of excellent breakdown characteristics, reduced electrical conductivity, and high polarization

Pending Publication Date: 2020-10-30
HARBIN UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the technical problems of low energy storage performance and poor breakdown characteristics of the polymer medium, as well as the simplicity and environmental protection of the composite dielectric film preparation process, the present invention provides an energy storage polymer composite based on the modification of the inorganic insulating layer. Thin film and its preparation method

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  • Energy storage polymer composite film based on inorganic insulating layer modification and preparation method thereof
  • Energy storage polymer composite film based on inorganic insulating layer modification and preparation method thereof
  • Energy storage polymer composite film based on inorganic insulating layer modification and preparation method thereof

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specific Embodiment approach 1

[0033] A method for preparing an energy storage polymer composite film based on the modification of an inorganic insulating layer includes the following steps:

[0034] Step 1. Weigh the PMMA and DMF solutions according to the material-to-liquid ratio, put the weighed PMMA into a vacuum oven for drying, take it out and slowly add it to the DMF solution under heating and stirring conditions, and then let it stand to room temperature , And then stir at room temperature to prepare PMMA colloid, set aside;

[0035] Step 2. Put the PMMA colloid obtained in step 1 under vacuum conditions and let it stand to eliminate air bubbles, then pour the PMMA colloid onto a clean glass substrate, scrape coating to obtain a wet film on the glass substrate, and place it in a drying oven for drying , Get dry film;

[0036] Step 3. Transfer the glass substrate with the dry film obtained in step 2 to a vacuum drying box for vacuum drying, take it out and cool to room temperature, then put it in clean wat...

specific Embodiment approach 2

[0054] A method for preparing an energy storage polymer composite film based on the modification of an inorganic insulating layer includes the following steps:

[0055] Step 1. Weigh the PMMA and DMF solutions according to the material-to-liquid ratio, put the weighed PMMA into a vacuum oven for drying, take it out and slowly add it to the DMF solution under heating and stirring conditions, and then let it stand to room temperature , And then stir at room temperature to prepare PMMA colloid, set aside;

[0056] Step 2. Put the PMMA colloid obtained in step 1 under vacuum conditions and let it stand to eliminate air bubbles, then pour the PMMA colloid onto a clean glass substrate, scrape coating to obtain a wet film on the glass substrate, and place it in a drying oven for drying , Get dry film;

[0057] Step 3. Transfer the glass substrate with the dry film obtained in step 2 to a vacuum drying box for vacuum drying, take it out and cool to room temperature, then put it in clean wat...

specific Embodiment approach 3

[0071] A method for preparing an energy storage polymer composite film based on the modification of an inorganic insulating layer includes the following steps:

[0072] Step 1. Weigh the PMMA and DMF solutions according to the material-to-liquid ratio, put the weighed PMMA into a vacuum oven for drying, take it out and slowly add it to the DMF solution under heating and stirring conditions, and then let it stand to room temperature , And then stirred at room temperature to prepare PMMA colloid, ready for use;

[0073] Step 2. Put the PMMA colloid obtained in step 1 under vacuum conditions and let it stand to eliminate air bubbles, then pour the PMMA colloid onto a clean glass substrate, scrape the wet film on the glass substrate and place it in a drying oven for drying , Get dry film;

[0074] Step 3. Transfer the glass substrate with the dry film obtained in step 2 to a vacuum drying box for vacuum drying, take it out and cool to room temperature, then put it in clean water and pee...

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Abstract

The invention relates to an energy storage polymer composite film based on inorganic insulating layer modification and a preparation method thereof, and belongs to the field of dielectric capacitor energy storage composite materials. The technical problem to be solved is that a polymer medium has low energy storage performance and poor breakdown characteristic. The composite film is composed of apolymer film as an intermediate layer and inorganic insulating layers as a top layer and a bottom layer. The method comprises the steps that a PMMA polymer film is firstly prepared by a casting method, and then dense uniform SiO2 insulating layers with equal thicknesses are deposited and grown on the upper surface and the lower surface of the PMMA polymer film by using a magnetron sputtering method to prepare the energy storage polymer composite film based on the inorganic insulating layer modification. The SiO2 insulating layers are introduced to remarkably improve the energy storage performance of the PMMA polymer thin film, the polymer composite film has higher polarization strength, energy storage efficiency and breakdown field strength, and is expected to serve as a novel material forsolving the difficulty problems of dielectric capacitor application and popularization. The preparation process is low in cost, easy to implement and good in environmental protection.

Description

Technical field [0001] The invention belongs to the field of dielectric capacitor energy storage composite materials; in particular, it relates to an energy storage polymer composite film based on modification of an inorganic insulating layer and a preparation method thereof. Background technique [0002] Energy, as one of the most important topics in the 21st century, is not only the most important driving force for global economic development and social progress, but also the basic guarantee for the normal life of mankind. In recent years, the continuous increase in environmental hazards brought about by the large-scale use of non-renewable resources, the decrease in the storage of fossil fuels and the rapid development of the national economy and national defense requirements have promoted the rapid development of renewable clean energy and efficient Advances in energy conversion and storage technologies. In modern electronic and electrical systems, dielectric capacitors are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/35C23C14/10
CPCC23C14/35C23C14/10
Inventor 张天栋戚振飞张昌海迟庆国
Owner HARBIN UNIV OF SCI & TECH
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