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Electromagnetic shielding sealing product and manufacturing technology thereof

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: 2017-08-18
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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  • Electromagnetic shielding sealing product and manufacturing technology thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

[0021] 1) Weigh 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, and 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 mix;

[0023] 3) Adjust the mill to an appropriate roller distance, wrap the raw rubber with the roller, adjust the baffle to keep a proper amount of excess glue on the roller, slowly add silver-plated glass balls, and keep pouring the glue and re-milling until the color of the rubber is uniform and the initial preparation is finished. Gum;

[0024] 4) Remelt the above-mentioned primary rubber material, produce the piece, and cut the piece (adjust the width of the piece according to the product requirements), and make a se...

Embodiment 2

[0029] 1) Weigh 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 DCBP paste The content is 30%, and the particle size of silver-plated conductive powder is 50nm;

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

[0031] 3) Adjust the mill to an appropriate roller distance, wrap the raw rubber with the roller, adjust the baffle to keep a proper amount of excess glue on the roller, slowly add silver-plated conductive powder, and continue to pour the glue and re-mill until the color of the rubber material is uniform and the initial preparation is obtained. Gum;

[0032] 4) Remelt the above-mentioned primary rubber material, produce the piece, and cut the piece (adjust the width of the piec...

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 in 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 mill, control the temperature of the rolls to 40°C, add DCBP paste after wrapping the rolls, knead, and after kneading, park at room temperature for 6 hours to prepare silicone rubber mixes;

[0039] 3) Adjust the open mill to the appropriate roller distance, wrap the raw rubber with the roller, adjust the baffle to keep a proper amount of excess glue on the roller, slowly add silver-plated aluminum powder, control the temperature at 40°C, and continue pouring the glue and re-milling until the rubber is mixed. The color is uniform, and the primary rubber is prepare...

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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, it is necessary to carry out electromagnetic shielding on the equipment. If this type of electronic equipment is affected by electromagnetic waves of the same frequency during use, it is easy to produce bad signals, resulting in a decrease in the stability of use and other consequences. However, due to the need to install or disassemble at the interface of the equipment, etc., it is necessary to perform electromagnetic shielding and sealing here. The existing conventional practice is to use conductive rubber sealing rings for electromagnetic shielding during assembly. However, due to...

Claims

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Application Information

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Patent Type & Authority Applications(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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