Solid buoyancy materials, as a type of functional composite material, are widely used in marine equipment due to their advantages such as high net buoyancy, excellent pressure resistance, low water absorption, and strong resistance to seawater corrosion, providing reliable performance assurance. Solid buoyancy materials are mainly composed of resin and uniformly dispersed tiny hollow glass or ceramic microspheres, and are highly customizable.
Keywords: Solid Buoyancy Materials
Category: Solid Buoyancy Materials
Solid buoyancy materials, as a type of functional composite material, are widely used in marine equipment due to their advantages such as high net buoyancy, excellent pressure resistance, low water absorption, and strong resistance to seawater corrosion, providing reliable performance assurance. Solid buoyancy materials are mainly composed of resin and uniformly dispersed tiny hollow glass or ceramic microspheres, and are highly customizable.
| Density | Hydrostatic Pressure Resistance | Compressive Strength | Tensile Strength | Bulk Modulus | Safe use of water depth |
| （g/cm³） | MPa | MPa | MPa | MPa | rice |
| 0.36±0.01 | 8 | 15 | 10 | 800 | <500 |
| 0.38±0.01 | 12 | 17 | 14 | 1000 | <800 |
| 0.40±0.01 | 15 | 20 | 16 | 1200 | <1000 |
| 0.42±0.01 | 18 | 26 | 19 | 1500 | <1500 |
| 0.45±0.01 | 25 | 35 | 20 | 3000 | <2500 |
| 0.48±0.01 | 30 | 45 | 22 | 4000 | <3000 |
| 0.51±0.01 | 36 | 45 | 22 | 4000 | <3500 |
| 0.53±0.01 | 36 | 60 | 24 | 5500 | <3500 |
| 0.55±0.01 | 45 | 75 | 24 | 6500 | <4500 |
| 0.58±0.01 | 66 | 90 | 25 | 8500 | <6000 |
| 0.63±0.01 | 88 | 90 | 26 | / | <8000 |
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