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Preparation method of flexible heating sheet and heating sheet prepared thereby

A heating sheet, flexible technology, applied in chemical instruments and methods, climate sustainability, sustainable manufacturing/processing, etc., to achieve the effects of human body heating and comfort, long service life, and high thermal efficiency

Inactive Publication Date: 2019-08-16
北京倚天凌云科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, there are still many problems in the existing heating sheets, such as voltage resistance, temperature resistance, tensile strength, and stability, which need to be further improved to adapt to higher requirements.

Method used

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  • Preparation method of flexible heating sheet and heating sheet prepared thereby
  • Preparation method of flexible heating sheet and heating sheet prepared thereby

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] This embodiment provides a method for preparing a flexible heating sheet, comprising the following steps:

[0039] (1) Dilute the silicone high-temperature adhesive with a diluent to prepare a silicone high-temperature adhesive with a glue content of 45%. The diluent is an aromatic solvent, such as toluene solution;

[0040] (2) Spray the silicone high-temperature adhesive diluted in step (1) on the carbon fiber heating cloth to form a silicone high-temperature adhesive layer 2, and the carbon fiber heating cloth is the carbon fiber heating cloth layer 1;

[0041] (3) Lay a layer of calcined mica paper on the organic silicon high temperature adhesive layer formed in step (2), i.e. the first mica paper layer 3, to obtain the initial product of the heating sheet;

[0042] (4) The primary product of the heating sheet obtained in step (3) is dried and compounded by a dry compound machine, and sent into a drying box at a speed of 3 / meter per second, and the temperature of the ...

Embodiment 2

[0045] This embodiment provides a method for preparing a flexible heating sheet, comprising the following steps:

[0046] (1) Dilute the silicone high-temperature adhesive with a diluent to prepare a silicone high-temperature adhesive with a glue content of 15%. The diluent is an aromatic solvent, such as xylene solution;

[0047] (2) Spray the silicone high-temperature adhesive diluted in step (1) on the carbon fiber heating cloth to form a silicone high-temperature adhesive layer;

[0048] (3) spreading a layer of calcined mica paper on the organic silicon high-temperature adhesive layer formed in step (2), to obtain the initial product of the heating sheet;

[0049] (4) Dry and compound the initial product of the heating sheet obtained in step (3) through a dry compound machine, and send it into the drying box at a speed of 3 / meter per second, adjust the temperature of the drying box to 65 ° C, and keep it warm for 2 minutes ; After that, adjust the temperature of the dryi...

Embodiment 3

[0052] This embodiment provides a method for preparing a flexible heating sheet, comprising the following steps:

[0053] (1) Dilute the silicone high-temperature adhesive with a diluent to prepare a silicone high-temperature adhesive with a glue content of 20%;

[0054] (2) Spray the silicone high-temperature adhesive diluted in step (1) on the carbon fiber heating cloth to form a silicone high-temperature adhesive layer;

[0055] (3) spreading a layer of calcined mica paper on the organic silicon high-temperature adhesive layer formed in step (2), to obtain the initial product of the heating sheet;

[0056] (4) The primary product of the heating sheet obtained in step (3) is dried and compounded by a dry compound machine, and sent into a drying box at a speed of 3 / meter per second, and the temperature of the drying box is adjusted to 60 ° C, and the temperature is kept for 2 minutes ; After that, adjust the temperature of the drying box to 120°C and keep it warm for 2 minut...

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Abstract

The invention provides a preparation method of a flexible heating sheet. The preparation method comprises following steps: (1) diluting an organic silicon high temperature adhesive to prepare an organic silicon high temperature adhesive with a glue content of 15 to 45%; (2) spraying the diluted organic silicon high temperature adhesive on carbon fiber heating cloth to form an organic silicon hightemperature adhesive layer; (3) paving a layer of calcined mica paper on the organic silicon high temperature adhesive layer to obtain a primary product of the heating sheet; and (4) drying and compounding the primary product in a dry compounding machine, delivering the primary product to a baking oven at a speed of 3 to 8 meters / second, fully drying, and taking out. The prepared flexible heatingsheet has the advantages of simple structure, safety, and high heat conversion efficiency, and can be widely applied to surface heating of health care products and various low temperature occasions.

Description

technical field [0001] The invention belongs to the technical field of heating material processing, and in particular relates to a method for preparing a flexible heating sheet and the prepared heating sheet. Background technique [0002] Heating sheet is a sheet-shaped electric heating element that generates heat. There are many types of heating sheets on the market, such as mica heating sheet, non-woven heating sheet, silicone heating sheet, etc. Because heating sheets are easy to use, easy to install, non-polluting, and generally have a long service life, they are widely used in household appliances, machinery and equipment, and industrial and agricultural heating occasions. [0003] However, there are still many problems in the existing heating sheets, such as voltage resistance, temperature resistance, tensile strength, and stability, which need to be further improved to adapt to higher requirements. Contents of the invention [0004] In view of this, the purpose of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B9/06B32B9/00B32B17/02B32B7/12B32B17/06B32B29/02B32B37/12B32B38/16C01B33/42
CPCB32B5/02B32B7/12B32B9/06B32B17/065B32B29/02B32B37/1284B32B38/164B32B2262/101B32B2262/106C01B33/42Y02P20/10
Inventor 吴海峰胡建伟张永平赵建虎
Owner 北京倚天凌云科技股份有限公司
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