An anti-blast and anti-impact multi-layer structural plate and an integrated preparation method thereof

Abstract

This invention relates to an explosion-proof and impact-resistant multilayer structural plate and its integrated preparation method. The invention aims to address the problems of traditional porous energy-absorbing materials, such as limited functionality, poor impact resistance, and weak interfacial bonding in explosion-proof and impact-resistant structures. It comprises a medium-to-high volumetric B4C / Al composite material, a hollow microsphere / Al composite material, and a fiber-reinforced resin-based composite material. The method includes: 1. Laying B4C powder, vibrating and pressurizing it; 2. Laying hollow microspheres on a B4C / Al preform and pressurizing it; 3. Molten aluminum liquid, pressing the aluminum liquid into the preform, maintaining pressure, and demolding; 4. Bonding the fiber composite material backing plate to obtain a multilayer structure. The structure contains a high-strength B4C / Al panel layer, a high-energy-absorbing hollow microsphere / Al intermediate layer, and a high-toughness fiber composite material backing plate layer. This invention can be used in explosion-proof and impact-resistant military shelters or rapidly disassembled barracks.

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