The invention provides a high-electromagnetic-shielding low-lightning-damage composite material and a preparation method thereof.The composite material is provided with a connecting side used for being connected with an aircraft and an anti-lightning side deviating from the aircraft, the composite material comprises a resin matrix, continuous carbon fiber layers and an insertion layer, and the multiple continuous carbon fiber layers are sequentially stacked in the thickness direction; an intercalation layer is arranged between every two adjacent continuous carbon fiber layers, the resin matrix fills the continuous carbon fiber layers and the interlayers containing the intercalation layers, and the volume fraction of carbon fibers in the continuous carbon fiber layers is 64-73%; wherein the intercalation layers among the first 3-7 layers, close to the anti-lightning stroke side, of the composite material are first carbon nanotube film materials, and the intercalation layers among the other layers are micron conductive materials. The composite material provided by the invention is low in damage after lightning stroke, and has high electromagnetic shielding effectiveness, interlayer performance, interlayer shear strength and thickness-direction conductivity.
本发明提供了一种高电磁屏蔽低雷击损伤复合材料及其制备方法,复合材料具有用于与飞行器连接的连接侧和背离飞行器的抗雷击侧,复合材料包括树脂基体、连续碳纤维层以及插层,多层连续碳纤维层沿厚度方向依次堆叠,相邻两层连续碳纤维层之间的层间均设有插层,树脂基体填充连续碳纤维层和含有插层的层间,连续碳纤维层中碳纤维的体积分数占比为64~73%;其中,复合材料靠近抗雷击侧的前3~7个层间的插层为第一碳纳米管膜材料,其余层间的插层为微米导电材料。本发明提供的复合材料雷击后损伤低,且具有高电磁屏蔽效能、层间性能、层间剪切强度、以及厚度向电导率。
Composite material with high electromagnetic shielding and low lightning stroke damage and preparation method thereof
高电磁屏蔽低雷击损伤复合材料及其制备方法
06.05.2025
Patent
Elektronische Ressource
Chinesisch
IPC: | H05K PRINTED CIRCUITS , Gedruckte Schaltungen / B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / C08J Verarbeitung , WORKING-UP / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS / B29C Formen oder Verbinden von Kunststoffen , SHAPING OR JOINING OF PLASTICS / B64C AEROPLANES , Flugzeuge / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen |
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