An electromagnetic shielding sealing product and its manufacturing process

An electromagnetic shielding and manufacturing process technology, applied in the field of electromagnetic shielding sealing products and their manufacturing processes, can solve the problems of affecting the shielding effect, poor shielding efficiency, poor assembly, etc., and achieve good electromagnetic shielding performance, high production efficiency, good elasticity and The effect of electromagnetic shielding performance

Active Publication Date: 2020-12-08
青岛颐科密封材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides an electromagnetic shielding and sealing product and its manufacturing process, which solves the problems in the prior art that the electromagnetic shielding and sealing products have low elasticity, poor shielding efficiency, and poor assembly, which affect the shielding effect

Method used

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  • An electromagnetic shielding sealing product and its manufacturing process

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020]The manufacturing process of an electromagnetic shielding sealing product of the present invention includes the following steps:

[0021]1) Weigh the raw materials according to the following parts by weight: 100 parts of methyl vinyl silicone rubber, 300 parts of silver-plated glass balls, 4 parts of DCBP paste, 4 parts of coupling agent;

[0022]2) Take methyl vinyl silicone rubber, add DCBP paste, and mix in an open mill to prepare silicone rubber compound;

[0023]3) Adjust the open mill to the proper roll distance, the raw rubber wrapped rolls, adjust the baffle to keep a proper amount of excess rubber on the rolls, slowly add the silver-plated glass balls, and continue to pour the rubber back and mix until the color of the rubber is uniform and the preparation is in the initial stage. Gum;

[0024]4) The above-mentioned initial rubber material is re-melted, sliced, and cut (adjust the width of the cut according to the product requirements) to produce semi-finished products;

[0025]5) T...

Embodiment 2

[0029]1) Weigh the raw materials according to the following parts by weight: 80 parts of methyl vinyl silicone rubber, 250 parts of silver-plated conductive powder, 2 parts of DCBP paste, 2 parts of coupling agent, 2,4-dichlorobenzoyl in the DCBP paste The content is 30%, and the particle size of the silver-plated conductive powder is 50nm;

[0030]2) Take the silicone rubber, add DCBP paste, and mix it in an open mill. After mixing, leave it at room temperature for 2 hours to prepare the silicone rubber compound;

[0031]3) Adjust the open mill to the proper roll distance, the raw rubber wrapped roll, adjust the baffle to keep a proper amount of excess rubber on the roll, slowly add the silver-plated conductive powder, and continue to pour the rubber back and mix until the color of the rubber is uniform and the preparation is in the initial stage. Gum;

[0032]4) The above-mentioned initial rubber material is re-melted, sliced, and cut (adjust the width of the cut according to the product r...

Embodiment 3

[0037]1) Weigh the raw materials according to the following parts by weight: 90 parts of methyl vinyl silicone rubber, 260 parts of silver-plated aluminum powder, 8 parts of DCBP paste, 8 parts of vinyl triethoxysilane coupling agent, silver-plated aluminum powder The content is 40%, and the particle size of silver-plated aluminum powder is 100nm;

[0038]2) Take methyl vinyl silicone rubber, turn on the open mill, control the roller temperature to 40℃, add DCBP paste after the roller is wrapped, mix, after mixing, park at room temperature for 6 hours to prepare the silicone rubber compound;

[0039]3) Adjust the open mill to a proper roll distance, roll the raw rubber, adjust the baffle to keep a proper amount of remaining rubber on the roll, slowly add silver-plated aluminum powder, control the temperature at 40 ℃, and continue to pour the rubber back and mix until the rubber compound The color is uniform, and the initial rubber compound is prepared;

[0040]4) The above-mentioned initial ...

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Abstract

The invention discloses an electromagnetic shielding sealing product and a manufacturing technology thereof and belongs to the technical field of an electromagnetic shielding material. The electromagnetic shielding sealing product comprises an aluminum alloy framework, wherein an electromagnetic shielding rubber material is arranged on the aluminum alloy framework and comprises the following components in parts by weight: 80-100 parts of methyl vinyl silicone rubber, 50-300 parts of silvering conducive filler, 2-8 parts of DCBP grease and 2-8 parts of a coupling agent; the components are mixed, refined and sheeted and then are compounded and vulcanized with the aluminum alloy framework, so as to acquire the electromagnetic shielding sealing product. The manufacturing technology disclosed by the invention is simple; low-temperature vulcanization is adopted, so that the aluminum alloy framework is not influenced; the shore A hardness of an electromagnetic shielding rubber material on the sealing product surface is not higher than 70 degrees, the volume resistivity is 0.005-0.01 omega.cm and the electromagnetic shielding property is excellent; the precedent of a high-conductive rubber material is started; the blanking of a high-conductive rubber material is filled; the requirements on electromagnetic shielding and sealing property of equipment are met.

Description

Technical field[0001]The invention belongs to the technical field of electromagnetic shielding materials, in particular to an electromagnetic shielding sealing product and a manufacturing process thereof.Background technique[0002]In some special-purpose electronic equipment, in order to prevent the interference of electromagnetic signals and protect the normal operation of the equipment, the equipment needs to be electromagnetically shielded. If this type of electronic equipment is affected by electromagnetic waves of the same frequency during use, it is easy to produce poor signals, resulting in a decrease in the stability of use. However, in the interface of the equipment and other locations, due to the need to install or disassemble, electromagnetic shielding and sealing are required here. The existing conventional method is to use conductive rubber seals for electromagnetic shielding during assembly. However, due to manual errors and assembly techniques, the electromagnetic seal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L83/07C08K13/06C08K9/02C08K7/20C08K5/14C08K5/5425C08K3/08C08K3/22B29D99/00
CPCB29D99/0053C08K3/08C08K3/22C08K5/14C08K5/5425C08K7/20C08K9/02C08K13/06C08K2003/0812C08K2003/2296C08K2201/001C08K2201/003C08L83/04
Inventor 姜玉华邵贾贾姜子凡
Owner 青岛颐科密封材料有限公司
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