A kind of graphene type anti-radiation coating

Abstract

The invention discloses a graphene type radiation protective coating. The coating comprises conductive packing, wave-absorbing packing and graphene. The radiation protective coating disclosed by the invention can serve as a radiation protective coating of various types of electronic equipment, the radiation protective coating, inner primer, putty and finish coating of a building wall body, and the like, so as to achieve the effects of electromagnetic shielding and electromagnetic compatibility; the coating is in a liquid state before curing and has fluidity; the viscosities of the coating are different according to the difference of materials, properties and production processes of the products; after the coating is cured completely, a layer of continuous material with a certain thickness is formed; after the coating is cured, the effects of electromagnetic shielding, resisting interference, and electromagnetic isolating can be achieved; in addition, the radiation protective coating disclosed by the invention has the effects of preventing water, preventing moisture, resisting oxidation, preventing corrosion, preventing earthquake and the like, and is an excellent radiation protective coating with reliable performance for buildings and electronic products.

Description

technical field [0001] The invention relates to the technical field of anti-radiation coatings. More specifically, it relates to a graphene type anti-radiation coating. Background technique [0002] With the rapid development of the electronic industry and the popularization of electronic products, another new "pollution" has emerged in the society, which is electromagnetic waves of different frequencies reflected by tens of thousands of electronic and electrical equipment during work. These electromagnetic waves will cause cross-interference to various electronic and electrical equipment, communication and transmission lines that are working nearby, resulting in phenomena such as out-of-control of computer-controlled machines and abnormal operation of communication equipment, which are extremely harmful. [0003] With the increasing development of polymer materials, engineering plastic parts are widely used in the electronics industry. However, since plastics have no shie...

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Problems solved by technology

However, the radiation protection effect of the protective film prepared by this method is relatively limited, mainly because: graphene has a large tendency to agglomerate in the coating system and cannot effectively disperse, which also affects the radiation protection function of its protective film ; Due to the surface tension between the water-soluble polyurethane emulsion system and the PET film, the coating is not easy to disperse and spread evenly on the PET film, which is not conducive to its film formation

[0008] CN 102020899 A discloses a composite coating electromagnetic shielding coating and a composite coating electromagnetic shielding material prepared therefrom. The composite coating electromagnetic shielding coating includes a conductive layer coating with a reflection function and a wave-absorbing layer coating with an absorption function. Since conductive metal powder is added to the coating of the conductive layer, the coating of the wave-absorbing layer also contains metal powder, and the metal powder is easily oxidized. Therefore, the radiation protection effect of the coating is less stable over time, and the radiation protection effect will disappear.

[0009] CN 103897446 A discloses that graphene is used as a basic component, and graphene is combined with inorganic coatings, but this method uses more graphene, thereby increasing the cost of coatings

[0010] There are also some methods, which are to modify the graphene first, and then use the modified graphene in the coating, but this will greatly increase the cost of the coating, making the product difficult to apply on a large scale

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