Electromagnetic shielding rubber material

Abstract

The invention discloses an electromagnetic shielding rubber material. Conducting materials are uniformly distributed in rubber matrix. The electromagnetic shielding rubber material comprises the following components in parts by mass: 100 parts of rubber matrix, 20 to 30 parts of carbon black, 20 to 55 parts of nickel-plated carbon nanotubes, 5 to 15 parts of metal powder, 2 to 4 parts of sulphur,1 to 3 parts of a vulcanizing agent DCP, 1 to 2 parts of an accelerant TMTD, 1 to 2 parts of an accelerant CZ, 2 to 5 parts of a coupling agent KH-570, 1 to 2 parts of hydroxyl silicone oil, 2 to 4 parts of a plasticizer DBP, 2 to 5 parts of a dispersing agent, 0.5 to 1 part of an antiager TK-100, and 0.5 to 1 part of an antiager TK-101. The electromagnetic shielding rubber material is excellent in mechanical property and electrical and thermal conductivity, high in Electromagnetic shielding effectiveness, and medium in cost, and has excellent integrated quality.

Description

technical field [0001] The invention belongs to the field of rubber manufacturing, in particular to an electromagnetic shielding rubber material. Background technique [0002] With the advancement of science and technology increasingly entering human life, various types of electronic equipment are more and more widely used, and problems such as electromagnetic interference, electromagnetic information leakage, and environmental electromagnetic pollution are becoming more and more prominent, which has become an urgent problem that needs to be solved in the current society. . Electromagnetic radiation can be effectively controlled and electromagnetic pollution can be reduced by means of electromagnetic shielding. Traditional shielding materials are metal plates, wire mesh, etc., but with the development of polymer materials and industrial production, electromagnetic shielding rubber has become a new type of electromagnetic protection material. Effectively improving thermal c...

AI Technical Summary

Problems solved by technology

[0003] Some of the electromagnetic shielding rubbers in the prior art are made by adding conductive and magnetically conductive media to the silicone rubber matrix. The conductive and magnetically conductive media include silver powder, nickel powder, and magnetic powder, which ensures that the silicone rubber The original environmental resistance and mechanical properties can meet the anti-interference and electromagnetic shielding performance requirements of wide frequency band and high shielding efficiency, but the cost of materials is greatly increased due to the use of a large amount of silver powder and nickel powder

[0004] There are also existing technologies that propose the use of nickel-plated glass fiber or nickel-plated silica to reduce the filling amount of metal powder, but this inevitably leads to a decrease in electrical and thermal conductivity.