Explosion-proof Materials which developed by Sanda is a kind of network-structured polyurethane foam with a pentagon and dodecahedron structure, Characterized by high tearing strength, anti-mildew, high flexibility, and perfect performance of suppressing fire&explosion-spread. Explosion-proof Materials can be widely applied to fuel tank, fuel truck and oil-storage infrastructure.
        Explosion-proof Principle of Network-Structured PU Foam
        1)Effectively suppress fire-spreading, lower down the temperature around the fire, decrease press-wave produced by combustion, effectively avoiding disasters caused by overpressure
        2)Prevent generation and accumulation of static electricity
        3)Improve fuel's chemical stability, prolong storage-time
        4)Minimize the possibility of explosion by transforming gas-state fuel into oil film attached on network material
Performance
Number Project Unit Performance
1 Density g/c 0.032
2 Average size of mesh mm 1.8～3.5
3 Apparent density kg/ 25～35
4 Tensile strength kPa ≥100
5 Compressive strength25％,65％deformation kPa ≥2.8≥4.2
6 Compress deformation70℃,22h compress 50％ ％ ≤4
7 Tearing strength N/cm ≥6
8 Breaking elongation ％ ≥220
9 Fuel-oil retention ％ ≤2.5
10 Solids pollution mg/ ≤400
11 Volume resistivity Ω.cm 1.0×107～5.0×1011