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Preparation method of epoxy resin-based composite wave-transmitting material

A technology of epoxy resin and wave-transmitting materials, which is applied in the field of wave-transmitting materials, and can solve the limitations on the use of epoxy resin-based composite wave-transmitting materials, high impact toughness and resistance to heat and humidity, high dielectric constant and dielectric loss and other problems, to achieve the effect of suitable large-scale production, high dielectric constant and high mechanical strength

Active Publication Date: 2020-06-12
NORTH CHINA INST OF AEROSPACE ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current epoxy resin-based composite wave-transmitting materials have low heat resistance and cannot be used at higher temperatures. At the same time, their impact toughness and moisture resistance stability are relatively large, and their dielectric constant and dielectric loss values ​​are relatively high. large, thus greatly limiting the use of epoxy resin-based composite wave-transparent materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A preparation method of epoxy resin-based composite wave-transparent material, comprising the following steps:

[0028] S 1 . Epoxy resin modification treatment,

[0029] S 1-1 Prepare metal ion mixed solution, mix ferrous sulfate with cobalt chloride, copper sulfate solid powder in molar ratio as 2:3:5, and take by weighing described mixed solid powder 10g and place in 100mL deionized water, fully stir, Prepare mixed solution A;

[0030] S 1-2 .Add 0.3g of hydroxyethyl cellulose to the mixed solution A, and stir fully to obtain the mixed solution B;

[0031] S 1-3 .Weigh 0.3g of bisphenol A type epoxy resin epoxy resin with an epoxy value of 5.5 and pour it into the mixed solution B, fully stir for 60min to obtain the mixed solution C;

[0032] S 1-4 .Add 0.5g sodium dodecylbenzene sulfonate to the mixed solution C, stir evenly and heat at 60°C for 30 minutes, and obtain a modified epoxy resin solution after cooling;

[0033] S 2 .The above-mentioned modified ...

Embodiment 2

[0036] A preparation method of epoxy resin-based composite wave-transparent material, comprising the following steps:

[0037] S 1 . Epoxy resin modification treatment,

[0038] S 1-1 Prepare metal ion mixed solution, mix ferrous sulfate with cobalt chloride, copper sulfate solid powder in molar ratio as 2:3:6, and take by weighing described mixed solid powder 10g and place in 100mL deionized water, fully stir, Prepare mixed solution A;

[0039] S 1-2 . Add 0.4 g of hydroxyethyl cellulose to the mixed solution A, and stir fully to obtain the mixed solution B;

[0040] S 1-3.Weigh 0.1g of bisphenol A type epoxy resin epoxy resin with an epoxy value of 5.6 and pour it into the mixed solution B, fully stir for 60min to obtain the mixed solution C;

[0041] S 1-4 .Add 0.8g sodium dodecylbenzene sulfonate to the mixed solution C, stir it evenly and heat it at 80°C for 40 minutes, and obtain a modified epoxy resin solution after cooling;

[0042] S 2 .The above-mentioned mo...

Embodiment 3

[0045] A preparation method of epoxy resin-based composite wave-transparent material, comprising the following steps:

[0046] S 1 . Epoxy resin modification treatment,

[0047] S 1-1 Prepare metal ion mixed solution, ferrous sulfate and cobalt chloride, copper sulfate solid powder are mixed in molar ratio as 2:3:7, and take described mixed solid powder 10g and place 100mL deionized water, fully stir, Prepare mixed solution A;

[0048] S 1-2 .Add 0.3g of hydroxyethyl cellulose to the mixed solution A, and stir fully to obtain the mixed solution B;

[0049] S 1-3 .Weigh 0.3g of bisphenol A type epoxy resin epoxy resin with an epoxy value of 5.5 and pour it into the mixed solution B, fully stir for 60min to obtain the mixed solution C;

[0050] S 1-4 .Add 0.5g of sodium lauryl sulfate to the mixed solution C, stir evenly and heat at 90°C for 50 minutes, and obtain a modified epoxy resin solution after cooling;

[0051] S 2 .The above-mentioned modified epoxy resin solut...

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Abstract

The invention discloses a preparation method of an epoxy resin-based composite wave-transmitting material, and relates to the technical field of wave-transmitting materials. An epoxy resin is modifiedby using a metal salt solution, and styrene and the modified epoxy resin react and are cured to prepare the epoxy resin-based composite wave-transmitting material with high mechanical strength, dielectric property and glass-transition temperature. Meanwhile, the adopted raw materials are low in cost, the production process is simple, and the method is suitable for large-scale production.

Description

technical field [0001] The invention relates to the technical field of wave-transmitting materials, in particular to a preparation method of an epoxy resin-based composite wave-transmitting material. Background technique [0002] Wave-transparent materials refer to materials that have good transmission properties for electromagnetic waves incident at different angles. Under the direct action of low-frequency electric field, metals are conductors, while non-metallic materials are insulators; when materials are exposed to high-frequency electric fields, insulators become permeable materials for high-frequency electric fields, while metals become shielding materials for electromagnetic waves. According to the nature of the electromagnetic wave propagation process, the electromagnetic wave will produce reflection, refraction and transmission when it hits the object, and the material will produce polarization and loss of electromagnetic wave energy under the action of the electro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/02C08L1/28C08K13/02C08K3/30C08K3/16C08K5/42C08G59/42C08F283/10C08F212/08
CPCC08L63/00C08G59/4215C08F283/10C08L2201/08C08K2003/3045C08K2201/014C08L1/284C08K13/02C08K3/30C08K3/16C08K5/42C08K5/41C08F212/08
Inventor 李鑫杨雪梅苑鹤
Owner NORTH CHINA INST OF AEROSPACE ENG