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High-flame-retardant heat-insulating functional adhesive tape and preparation process thereof

A functional, highly flame-retardant technology, applied in the direction of adhesives, non-polymer adhesive additives, adhesive types, etc., can solve the problems of reduced corrosion resistance, poor flame retardant performance, and increased electrical conductivity

Active Publication Date: 2022-01-14
江西昊泽光学膜科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the above-mentioned technical problems, the object of the present invention is to provide a high flame-retardant heat-insulating functional adhesive tape and its preparation process: by combining adhesives, flame-retardant additives Stir and mix with heat-insulating fillers to obtain a flame-retardant adhesive. Add polypropylene, flame-retardant additives, and heat-insulating fillers to the extruder, melt extrusion molding, and cut to obtain a flame-retardant base film. The flame-retardant adhesive is uniformly Coated on the flame-retardant base film, and then dried to obtain the high flame-retardant heat-insulating functional tape, which solved the problems of poor flame retardancy of existing acrylic adhesives, increased electrical conductivity and corrosion resistance after adding flame retardants. Lowering the problem

Method used

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  • High-flame-retardant heat-insulating functional adhesive tape and preparation process thereof
  • High-flame-retardant heat-insulating functional adhesive tape and preparation process thereof
  • High-flame-retardant heat-insulating functional adhesive tape and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Present embodiment is a kind of preparation method of flame retardant additive, comprises the following steps:

[0046] Step 1: Add 0.3mol acetophenone and 80mL absolute ethanol into a three-neck flask equipped with a stirrer and a constant pressure dropping funnel, and stir while stirring at a temperature of 20°C and a stirring rate of 800r / min. Add 0.5mol thionyl chloride, control the rate of addition to 1 drop / s, continue to react for 40 minutes under the condition of ultrasonic frequency of 60kHz after the addition is completed, and adjust the pH of the reaction product to 7 with saturated sodium carbonate solution after the reaction. After vacuum filtration, the filter cake was washed twice with distilled water and anhydrous ether respectively, then placed in a vacuum drying oven, and dried to a constant weight at a temperature of 50°C to obtain intermediate 1;

[0047] Step 2: Add 100mL of concentrated nitric acid with a mass fraction of 65% to a three-neck flask ...

Embodiment 2

[0052] Present embodiment is a kind of preparation method of flame retardant additive, comprises the following steps:

[0053] Step 1: Add 0.3mol of acetophenone and 100mL of absolute ethanol into a three-necked flask equipped with a stirrer and a constant pressure dropping funnel, and stir while stirring at a temperature of 25°C and a stirring rate of 1000r / min. Add 0.5mol thionyl chloride, control the rate of addition to 1 drop / s, continue to react for 60 minutes under the condition of ultrasonic frequency of 70kHz after the dropwise addition, and adjust the pH of the reaction product to 7 with saturated sodium carbonate solution after the reaction. After vacuum filtration, the filter cake was washed three times with distilled water and anhydrous ether respectively, then placed in a vacuum drying oven, and dried at a temperature of 70°C to constant weight to obtain intermediate 1;

[0054] Step 2: Add 100mL of concentrated nitric acid with a mass fraction of 68% to a three-n...

Embodiment 3

[0059] This embodiment is a preparation process of a highly flame-retardant and heat-insulating functional adhesive tape, which includes the following steps:

[0060] S1: 40g of isooctyl acrylate, 7g of butyl acrylate, 2g of octadecyl acrylate, 1g of acrylic acid and 200mL of ethyl acetate were added to a four-way tank equipped with a thermometer, a stirrer, an air guide tube, a condensing reflux tube and a constant pressure dropping funnel. In an open flask, dissolve 0.05g of azobisisobutyronitrile in 50mL of ethyl acetate to form azobisisobutyronitrile-ethyl acetate solution, pass through nitrogen protection, at a temperature of 60°C and a stirring rate of 300r / min Add azobisisobutyronitrile-ethyl acetate solution drop by drop while stirring under the conditions, control the dropping rate at 1 drop / s, continue to stir and react at a constant temperature for 5 hours after the dropwise addition, then raise the temperature to 70°C, and continue to stir and react at a constant te...

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Abstract

The invention discloses a high-flame-retardant heat-insulating functional adhesive tape and a preparation process thereof, and relates to the field of adhesive tapes, an adhesive, a flame-retardant additive and a heat-insulating filler are stirred and mixed to obtain a flame-retardant adhesive, polypropylene, the flame-retardant additive and the heat-insulating filler are added into an extruder, melt extrusion molding and slitting are performed to obtain a flame-retardant base film, and the flame-retardant substrate film is uniformly coated with the flame-retardant adhesive, and then dried to obtain the high-flame-retardant heat-insulating functional adhesive tape. The materials of the flame-retardant substrate film and the flame-retardant adhesive of the high-flame-retardant heat-insulating functional adhesive tape both contain the flame-retardant additive and the heat-insulating filler, so that the adhesive tape is endowed with good flame-retardant property, and meanwhile, the heat resistance of the adhesive tape is improved, so that heat is blocked and prevented from being transferred to other places, and meanwhile, the adhesive tape is not heated to deform or even be ignited; and protection defects occur.

Description

technical field [0001] The invention relates to the field of adhesive tapes, in particular to a highly flame-retardant and heat-insulating functional adhesive tape and a preparation process thereof. Background technique [0002] Lithium battery termination tape is based on polypropylene insulating material, on this basis, coated with special acrylic glue resistant to lithium battery electrolyte, which is specially used for the insulation and fixing protection of lithium ion batteries and other parts. [0003] Although the performance of the existing lithium battery termination tape has been greatly improved, there are still poor flame retardancy, insulation and antistatic effects of the base material, which affects the overall effect of the lithium battery termination tape. [0004] Therefore, various flame retardants are generally added to acrylic adhesives, and the commonly used flame retardants are halogen flame retardants and halogen-free flame retardants. Halogen flame...

Claims

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Application Information

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IPC IPC(8): C09J7/24C09J7/30C09J133/08C09J11/06C08J5/18C08L23/12
CPCC09J7/243C09J7/30C09J133/064C09J11/06C08J5/18C08J2323/12C09J2301/122C09J2301/408C09J2423/106C09J2433/00C08K5/5399Y02E60/10
Inventor 余正波毛珂程承敏
Owner 江西昊泽光学膜科技有限公司
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