Optical glue for preventing electromagnetic wave radiation and preparation method thereof

An anti-electromagnetic wave and optical glue technology, applied in the field of optical glue, can solve the problems of uneven dispersion of optical glue, difficult to satisfy users, weak anti-electromagnetic wave radiation performance, etc. The effect of high absorptive capacity

Active Publication Date: 2022-06-03
SHENZHEN GAOREN ELECTRONICS NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current optical adhesive film has a single function and weak anti-electromagnetic radiation performance
The conductive filler endows the optical adhesive with electromagnetic shielding ability. Common electromagnetic shielding materials are electromagnetic shielding materials containing metal layer interlayers or doped with metal particles, but the combination of these metals or nanomaterials with optical adhesives is not firm, and their Inhomogeneous dispersion in the medium leads to incomplete absorption or reflection of electromagnetic waves, which easily causes secondary electromagnetic radiation pollution, resulting in poor use and protection performance, and it is difficult to meet the needs of users

Method used

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  • Optical glue for preventing electromagnetic wave radiation and preparation method thereof
  • Optical glue for preventing electromagnetic wave radiation and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0025] An optical adhesive for preventing electromagnetic wave radiation and a preparation method thereof, comprising the following steps:

[0026] (1) Add 0.4g graphene oxide to 50ml deionized water, ultrasonically treat for 2h, disperse evenly to obtain a suspension, and add 5gNaOH and 9gClCH under constant stirring 2 COOH, after the dropwise addition, the ultrasonic treatment time was 3h, and the mixture was dialyzed against water for 45h, and then the dispersion was filtered hot with filter paper. After a large number of graphene sheets passed through the filter paper, the filtrate was collected and the solvent was evaporated with a rotary evaporator. , carboxylated graphene was obtained after drying in an oven at 60 °C for 12 h;

[0027] (2) 1g boron block, 39g FeCl 2 ·4H 2 O and 47gCoCl 2 ·6H 2 O was dissolved in 100ml of deionized water, 18g of polyacrylic acid was added to the solution, 10g of 0.1M sodium hydroxide solution was added, a black solution was formed af...

Embodiment 2

[0032] An optical adhesive for preventing electromagnetic wave radiation and a preparation method thereof, comprising the following steps:

[0033] (1) Add 0.5g graphene oxide to 50ml deionized water, ultrasonically treat for 2h, disperse evenly to obtain a suspension, and add 5gNaOH and 9.5gClCH under constant stirring 2 COOH, after the dropwise addition, the ultrasonic treatment time was 3.2h, and the mixture was dialyzed against water for 46h, and then the dispersion was filtered hot with filter paper. After a large number of graphene sheets passed through the filter paper, the filtrate was collected and evaporated to dryness with a rotary evaporator. Solvent, carboxylated graphene was obtained after drying in an oven at 60 °C for 14 h;

[0034] (2) 1.2g boron block, 39.5g FeCl 2 ·4H 2 O and 47.2gCoCl 2 ·6H 2 O was dissolved in 100ml of deionized water, 20g of polyacrylic acid was added to the solution, 10g of 0.1M sodium hydroxide solution was added, a black solution w...

Embodiment 3

[0039] An optical adhesive for preventing electromagnetic wave radiation and a preparation method thereof, comprising the following steps:

[0040] (1) Add 0.6g of graphene oxide to 50ml of deionized water, ultrasonically treat for 2h, disperse evenly to obtain a suspension, and add 5g of NaOH and 10g of ClCH under constant stirring 2 COOH, after the dropwise addition, the ultrasonic treatment time was 4h, and the mixture was dialyzed against water for 47h, and then the dispersion was filtered hot with filter paper. After a large number of graphene sheets passed through the filter paper, the filtrate was collected and the solvent was evaporated with a rotary evaporator. , carboxylated graphene was obtained after drying in an oven at 60 °C for 16 h;

[0041] (2) 1.2g boron block, 39.5g FeCl 2 ·4H 2 O and 47.5gCoCl 2 ·6H 2 O was dissolved in 100ml of deionized water, 23g of polyacrylic acid was added to the solution, 10g of 0.1M sodium hydroxide solution was added, a black s...

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Abstract

The invention belongs to the technical field of optical adhesives. Aiming at the problems of weak anti-electromagnetic wave radiation performance of optical adhesives and unreliable combination of nanomaterials and optical adhesives, an optical adhesive for preventing electromagnetic wave radiation and a preparation method thereof are proposed. The optical adhesive for preventing electromagnetic wave radiation glue, which is compounded by Co 40 Fe 40 B 20 The acrylic glue compounded with graphene and the acrylate glue compounded with graphene are laminated alternately and then laminated with a heavy release film and a light release film on both sides. The compounded Co 40 Fe 40 B 20 The number of lay-ups of the acrylate glue and the graphene-composited acrylate glue is the same, and the lay-up once compounded Co 40 Fe 40 B 20 The acrylic glue and the acrylic glue compounded with graphene are used as one layer, and the number of layers is 3-5. The present invention avoids the phenomenon that the nanoparticle agglomeration and its combination stability with the colloid are not strong, and not only improves It not only improves the mechanical properties of optical glue, but also can form the process of "absorption-reflection-reabsorption" inside it, and realizes the effect of high-efficiency electromagnetic radiation radiation.

Description

technical field [0001] The invention belongs to the technical field of optical adhesives, and particularly relates to an optical adhesive for preventing electromagnetic wave radiation and a preparation method thereof. Background technique [0002] With the rapid development of the electronic information industry, electromagnetic pollution is becoming more and more serious, which will cause electromagnetic interference to electronic equipment. Modern medicine has proved that long-term electromagnetic radiation will affect human health. EMI shielding materials have received much attention due to their critical role in blocking unwanted electromagnetic wave radiation. Many materials, including metals, carbon materials, and metal oxides, have been extensively studied in this field. [0003] The current optical film has a single function, and the anti-electromagnetic wave radiation performance is weak. Conductive fillers endow optical adhesives with electromagnetic shielding a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J7/10C09J7/30C09J133/14C09J11/04
CPCC09J7/10C09J7/30C09J133/14C09J11/04C09J2301/124C08K2201/011C08K9/12C08K3/38C08K3/042
Inventor 孙仕兵顾孔胜周双荣曾取勇贾中伟
Owner SHENZHEN GAOREN ELECTRONICS NEW MATERIAL
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