Conductive paint is a kind of paint that uses composite particles such as copper and silver as conductive particles, which has good conductive properties. It can be sprayed or brushed to make the originally completely insulated non-metallic or non-conductive surface have metal-like characteristics of absorbing, conducting and attenuating electromagnetic waves, so as to effectively shield electromagnetic interference.
The technical parameters of conductive paints are very important. Among them, the conductivity effect is a key indicator to measure the conductivity of conductive paint. According to the technical requirements, the conductive effect should be less than or equal to 0025 cm, the thickness of the paint film is not less than 20 m. At the same time, the applied conductive parameters should be 1 20 m film thickness and 10 cm distance. In practice, a film thickness of 20-25 m is recommended for optimal protection against electromagnetic interference.
The use of conductive varnishes for shielding against electromagnetic interference has several advantages. First of all, conductive paint has high electrical conductivity, which can effectively absorb and conduct electromagnetic waves, thereby reducing the impact of electromagnetic wave interference. Secondly, conductive paint can attenuate electromagnetic waves to a low level, reducing the interference of electromagnetic waves to surrounding equipment and systems. In addition, conductive paints provide excellent electromagnetic wave shielding to ensure the proper operation of sensitive equipment and systems. Finally, conductive paints have a wide range of applications and can be applied to the surfaces of various non-metallic or non-conductive materials, such as plastics, ceramics, glass, etc.
In the field of electromagnetic wave shielding, conductive paints are widely used. First of all, it is widely used on the casing and external parts of electronic devices and communication systems to prevent electromagnetic waves from interfering with internal circuits. Secondly, conductive paints can be used in medical equipment, military equipment, aerospace equipment and other fields to ensure the normal operation and communication quality of these critical equipment. In addition, conductive paints can also be applied to the surface of building materials to provide electromagnetic wave shielding protection for buildings. The continuous expansion of these application fields has promoted the continuous development and innovation of conductive paint technology.
In the preparation of conductive paints, manufacturers often develop and adapt accordingly to different application areas and needs. By changing the type and content of conductive particles and adjusting the formula of conductive paint, the electromagnetic wave shielding effect with different conductivity requirements can be realized. In addition, manufacturers can adjust the uniformity and film thickness of conductive varnishes by changing the way they are sprayed or brushed to meet the individual needs of different material surfaces and application requirements.
In summary, conductive paint, as a paint with good conductivity, can effectively shield electromagnetic wave interference from completely insulated non-metallic or non-conductive surfaces with metal-like absorption, conduction and attenuation of electromagnetic waves by spraying or brushing. The use of conductive paints for electromagnetic wave shielding has a variety of advantages and is widely used in electronic equipment, communication systems, medical equipment, military equipment, and building materials. With the continuous expansion of application fields and continuous innovation of technology, the preparation and application of conductive paint will usher in a broader development prospect.