Application and analysis of Graphene tape in Cable shielding materials
Time:
2021-11-16 11:44
Source:
A cable usually consists of a conductor, a shielding layer, an insulating layer, a shielding layer and a sheath. Cable shielding materials have been the focus of attention and research in recent years. Among them, because Graphene tape has a high specific surface area, electrical conductivity, thermal conductivity, good mechanical properties and high electromagnetic shielding characteristics, its important research value in cables needs to be further explored. This article will analyze the research and application of Graphene tape in Cable shielding materials.
Graphene tape is one of the most widely used conductive fillers in Cable shielding materials. Its PH value, particle size, specific surface area, and dibutyl phthalate absorption value often determine the processing performance of Cable shielding materials. And electrical conductivity. The conductivity and toughness of the shielding layer relative to the amount of Graphene added are two mutually opposed properties that need to be taken into account at the same time. A large number of domestic and foreign researchers have done a lot of research on the equal proportioning process of filler Graphene tape. Current research shows that 15%-50% of the added quality is the most appropriate.
A large number of experiments have confirmed that the addition of Graphene tape, which has been modified to optimize the ratio, improves the uneven electric field of the cable, reduces the loss of internal power transmission, and reduces the accident rate of abnormal cracking during the operation of the cable.
Cable shielding materials have been the focus of attention and research in recent years. Graphene tape has the characteristics of large specific surface area, high aspect ratio, high electron mobility, and high thermal conductivity. Its unique single-atom layer two-dimensional structure and conjugated carbon The network structure is considered to be the most ideal nano conductive filler. It improves the situation that the cable is in an uneven electric field, reduces the loss of internal power transmission, and reduces the accident rate of abnormal cracking during the operation of the cable. Through a patent search, it is found that the patent applications for the preparation method of Graphene tape are concentrated in recent years, and there are few companies in China that have invested in production. The application of Graphene tape in Cable shielding materials is still in its infancy.
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