Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-strength cement-based composite fiber electromagnetic shielding material and preparation method thereof
The invention discloses a high-strength cement-based composite fiber electromagnetic shielding material and a preparation method thereof, belonging to the technical field of electromagnetic shieldingmaterials. The high-strength cement-based composite fiber electromagnetic shielding material comprises the following main components: 300-500 parts of cement with strength of not lower than 32.5 MPa,260-400 parts of an admixture with an average particle size of 5-30 [mu] m, 600--1900 parts of counterweight iron sand with an average particle size of 0.15-4.75 mm, 200-400 parts of fine aggregate with an average particle size of 0.15-4.75 mm, 10-30 parts of graphite powder, 1-5 parts of carbon fibers with a length of 12-14 mm, 10-20 parts of carbon black powder, 60-90 parts of steel fibers and 15-25 parts of a high-performance additive, wherein a water-binder ratio is 0.16-0.2. The high-strength cement-based composite fiber electromagnetic shielding material prepared by using a technical scheme in the invention has the characteristics of high shielding effectiveness, wide shielding frequency range, good mechanical property, good durability, wide application range and the like, and is applicable to development and application of high-shielding-effectiveness electromagnetic shielding materials.
本发明公开了一种高强水泥基复合纤维电磁屏蔽材料及其制备方法，属于电磁屏蔽材料技术领域。该高强水泥基复合纤维电磁屏蔽材料主要成分如下：强度不低于32.5MPa的水泥300～500份，平均粒径5～30μm的掺合料260～400份，平均粒径0.15～4.75mm的配重铁砂600～1900份，平均粒径0.15～4.75mm的细骨料200～400份，石墨粉10‑30份，长度12‑14mm的碳纤维1‑5份，炭黑粉10‑20份，钢纤维60‑90份，高性能外加剂15～25份，水胶比0.16～0.2。本发明技术方案制备的高强水泥基复合纤维电磁屏蔽材料具有屏蔽效能高、屏蔽频率范围广、力学性能好、耐久性能好、应用范围广等特点，适合高屏蔽效能电磁屏蔽材料的发展与应用。
High-strength cement-based composite fiber electromagnetic shielding material and preparation method thereof
The invention discloses a high-strength cement-based composite fiber electromagnetic shielding material and a preparation method thereof, belonging to the technical field of electromagnetic shieldingmaterials. The high-strength cement-based composite fiber electromagnetic shielding material comprises the following main components: 300-500 parts of cement with strength of not lower than 32.5 MPa,260-400 parts of an admixture with an average particle size of 5-30 [mu] m, 600--1900 parts of counterweight iron sand with an average particle size of 0.15-4.75 mm, 200-400 parts of fine aggregate with an average particle size of 0.15-4.75 mm, 10-30 parts of graphite powder, 1-5 parts of carbon fibers with a length of 12-14 mm, 10-20 parts of carbon black powder, 60-90 parts of steel fibers and 15-25 parts of a high-performance additive, wherein a water-binder ratio is 0.16-0.2. The high-strength cement-based composite fiber electromagnetic shielding material prepared by using a technical scheme in the invention has the characteristics of high shielding effectiveness, wide shielding frequency range, good mechanical property, good durability, wide application range and the like, and is applicable to development and application of high-shielding-effectiveness electromagnetic shielding materials.
本发明公开了一种高强水泥基复合纤维电磁屏蔽材料及其制备方法，属于电磁屏蔽材料技术领域。该高强水泥基复合纤维电磁屏蔽材料主要成分如下：强度不低于32.5MPa的水泥300～500份，平均粒径5～30μm的掺合料260～400份，平均粒径0.15～4.75mm的配重铁砂600～1900份，平均粒径0.15～4.75mm的细骨料200～400份，石墨粉10‑30份，长度12‑14mm的碳纤维1‑5份，炭黑粉10‑20份，钢纤维60‑90份，高性能外加剂15～25份，水胶比0.16～0.2。本发明技术方案制备的高强水泥基复合纤维电磁屏蔽材料具有屏蔽效能高、屏蔽频率范围广、力学性能好、耐久性能好、应用范围广等特点，适合高屏蔽效能电磁屏蔽材料的发展与应用。
High-strength cement-based composite fiber electromagnetic shielding material and preparation method thereof
一种高强水泥基复合纤维电磁屏蔽材料及其制备方法
LIU FUCAI (Autor:in) / XIAO MIN (Autor:in) / LI HAO (Autor:in) / HUANG HEMING (Autor:in)
07.08.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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