Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-performance cement-based electromagnetic shielding composite material
The invention discloses a high-performance cement-based electromagnetic shielding composite material. The invention comprises the following components in parts by weight: 450 kg/m3 of 42.5 ordinary Portland cement, 1373-1498 kg/m3 of medium river sand, 50 kg/m3 of fly ash, 100-400 kg/m3 of secondary reduction iron powder, 300 kg/m3 of water, and copper-nickel polymerization shielding fabric. The copper-nickel polymerization shielding fabric takes polyester as a carrier and is formed by weaving a copper wire mesh and a nickel wire mesh in a mixed manner, wherein the thickness of the copper-nickel polymerization shielding fabric is 0.5 mm, and the shielding effectiveness of the copper-nickel polymerization shielding fabric reaches 70dB in a frequency band of 1MHz-10GHz. According to the invention, the shielding effectiveness of the material in the frequency band of 30MHz-3GHz is researched.
本发明公开了一种高性能水泥基电磁屏蔽复合材料。本发明包括下述组分按照所述重量份数比组成：42.5普通硅酸盐水泥450kg/m，中等河砂1373‑1498kg/m，粉煤灰50kg/m，二次还原铁粉100‑400kg/m，水300kg/m，以及铜镍聚合屏蔽织物；铜镍聚合屏蔽织物以聚酯为载体，通过铜丝网和镍丝网混编而成，厚度为0.5mm，屏蔽效能在1MHz‑10GHz频段内达70dB。本发明研究了30MHz‑3GHz频段内材料的屏蔽效能。
High-performance cement-based electromagnetic shielding composite material
The invention discloses a high-performance cement-based electromagnetic shielding composite material. The invention comprises the following components in parts by weight: 450 kg/m3 of 42.5 ordinary Portland cement, 1373-1498 kg/m3 of medium river sand, 50 kg/m3 of fly ash, 100-400 kg/m3 of secondary reduction iron powder, 300 kg/m3 of water, and copper-nickel polymerization shielding fabric. The copper-nickel polymerization shielding fabric takes polyester as a carrier and is formed by weaving a copper wire mesh and a nickel wire mesh in a mixed manner, wherein the thickness of the copper-nickel polymerization shielding fabric is 0.5 mm, and the shielding effectiveness of the copper-nickel polymerization shielding fabric reaches 70dB in a frequency band of 1MHz-10GHz. According to the invention, the shielding effectiveness of the material in the frequency band of 30MHz-3GHz is researched.
本发明公开了一种高性能水泥基电磁屏蔽复合材料。本发明包括下述组分按照所述重量份数比组成：42.5普通硅酸盐水泥450kg/m，中等河砂1373‑1498kg/m，粉煤灰50kg/m，二次还原铁粉100‑400kg/m，水300kg/m，以及铜镍聚合屏蔽织物；铜镍聚合屏蔽织物以聚酯为载体，通过铜丝网和镍丝网混编而成，厚度为0.5mm，屏蔽效能在1MHz‑10GHz频段内达70dB。本发明研究了30MHz‑3GHz频段内材料的屏蔽效能。
High-performance cement-based electromagnetic shielding composite material
一种高性能水泥基电磁屏蔽复合材料
GAO YI (Autor:in) / HUANG JING (Autor:in) / LU YINGJIAN (Autor:in)
12.06.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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