Aerogel Particle

Aerogel particles are formed by crushing pure aerogel blocks, with no fixed shape or size. They consist of over 90% nanopores within a three-dimensional nanoscale silica network, giving them extremely low thermal conductivity along with high fire resistance, ultra-low density, excellent sound insulation, and outstanding adsorption capability. Published parameters include bulk density of 40-150 kg/m³, specific surface area of 500-1000 m²/g, porosity above 90%, pore size of 20-100 nm, and silica purity above 99%. Particle size range is customized, and both hydrophilic and hydrophobic versions are available.

Aerogel particles serve as an insulating fill material for enclosed and irregular spaces where boards or blankets cannot conform. Typical applications listed by the manufacturer include insulation for smelting and refining equipment, high-temperature equipment in kilns and furnaces, tanks and vessels, and high-pressure, high-temperature pipelines. The product withstands a maximum long-term operating temperature of 850°C. Because the particles flow into voids, they suit cavity filling, jacketed equipment, and retrofits where the insulation space has complex geometry. Hydrophobic grades are preferable where moisture ingress is possible during service.

The manufacturer states that, with ultra-low thermal conductivity, aerogel particles achieve equivalent insulation results at roughly one-fourth the thickness of traditional materials – so shallower cavities can meet the same heat-loss target, or existing cavities deliver lower losses. The nanoscale pore structure also gives excellent sound insulation and adsorption performance beyond what mineral loose-fill offers. Fire resistance is described as excellent due to the raw materials and production process, supporting use around high-temperature equipment. For a specific duty, confirm conductivity values in the current TDS and verify settled density in the actual cavity, since bulk density varies with filling method.

Yes. The published table lists particle size range as customized and hydrophobicity as hydrophilic or hydrophobic, so buyers can specify a size distribution suited to their filling method and cavity geometry, and choose the surface treatment matching the moisture environment. Bulk density spans 40-150 kg/m³ depending on grade and compaction. When inquiring, provide the application temperature, cavity dimensions, filling method (pouring, blowing, vibration settling), and moisture exposure so the factory can recommend a grade. Samples for filling trials and thermal verification can be arranged before bulk orders.

As a loose crushed material, aerogel particles should be handled to minimize dust generation: use enclosed transfer where possible, local exhaust at filling stations, and standard PPE per your site’s powder-handling procedures. Fill cavities with controlled settling to achieve consistent bulk density – the 40-150 kg/m³ range reflects both grade and compaction – because insulation performance depends on achieved density. Seal cavities after filling to prevent particle migration. Hydrophobic grades reduce moisture uptake but do not make open storage advisable; keep material in sealed packaging in a dry area. Confirm grade-specific handling guidance with the factory.