Preparation of woven copper tube and its application in electromagnetic shielding

Electromagnetic shielding has becoming a priority of researches in recent years due to electromagnetic wave pollution with the rise of electromagnetic wave. However, the present silver printed composite material is costly, which would give rise to the waste of precious metal resources. A simple method involving electroless plating, which constructs the textured electromagnetic shielding material, has been proposed and demonstrated in this paper. The inner connection between the copper tube structure and the electromagnetic shielding effect is also studied. Results indicate that the metal particle/ligand structure on the woven fabric surface can be geared up for catalyzing the deposition of copper particles, which can self-assemble to form copper tubes. The copper tube has a face-centered cubic structure with a content of 45%, the electromagnetic shielding performance of the textured copper tube is 26 dB, in which the absorbed power coefficient of this structure is 0.73, the transmission is 0.003, and this material can pass 1000 times of bending tests at different angles. Therefore, electromagnetic shielding materials can be manufactured by electroless plating and applied to the production of protective clothing for pregnant women and shielding wall coverings.