Alfa Chemistry provides high-quality powdered aerogel materials, which are produced by a green and environmentally friendly method and applied in various industries. The product has the advantages of ultra-low density, excellent thermal insulation performance, high porosity and good hydrophobicity and is expected to be widely used in the fields of building insulation, industrial insulation, composite materials, and special coatings.
Specification
| Items | Parameters |
| Catalog | GEL-PA |
| Appearance | White lightweight powder |
| Porosity | >90% |
| Bulk Density | 60–120 kg/m3 |
| Average Pore Size | ~15 nm |
| Specific Surface Area | 400–700 m2/g |
| Thermal Conductivity | 0.017–0.023 W/(m·K) |
| Operating Temperature | -200°C to 800°C |
| Water Contact Angle | >145° |
*Note: The product parameters listed on the page are for reference only, and can be adjusted according to your actual needs.
Functional Advantages
Structural and Physicochemical Properties
Powdered aerogel is characterized by its distinctive 3D nanoporous silica network. The material has a high specific surface area of 400–700 m2/g, which is suitable for the adsorption and support of catalysts. In addition, the pore size of powdered aerogel has an average diameter of about 15 nm, which is much smaller than the mean free path of air molecules. This nanoscale porosity enables powdered aerogel to suppress all forms of heat transfer.
Additionally, the powdered aerogel exhibits a porosity exceeding 90% and a bulk density within 60–120 kg/m3, making it exceptionally lightweight while retaining mechanical integrity suitable for formulation into various composites and coatings.
Hydrophobic Performance
Powdered aerogel has excellent hydrophobicity, with a water contact angle of more than 145°. This superhydrophobic property allows the material to repel water and moisture, which can maintain the insulation performance and structural stability of the material in humid or wet environments. The hydrophobic surface of powdered aerogel can also prevent the absorption of water vapor, making it suitable for long-term moisture-resistant applications.
Thermal Stability and Operational Range
Powdered aerogel can operate stably in a wide temperature range of -200°C to 800°C, which makes it suitable for use in extreme thermal environments such as cryogenic insulation, high-temperature insulation, and fireproof materials.
Fig.1 Preparation process and heat treatment optimization of hydrophobic silica aerogel[1].
Application Spectrum
Alfa Chemistry's powdered aerogel is engineered to enhance the performance of diverse material systems:
- Building Coatings Filler: Improves thermal insulation and moisture resistance in architectural coatings.
- Industrial Insulating Coatings: Reduces thermal loss in equipment, pipelines, and industrial reactors.
- Textile and Polymer Additives: Enhances thermal barrier properties in functional fabrics and high-performance plastics.
- Fireproof Coating Additive: Contributes to the development of fire-resistant paints and surface treatments.
- Gypsum Board Filler: Increases insulation and fire retardancy in lightweight construction panels.
- Phase Change Composite Materials: Enhances thermal storage efficiency by preventing leakage and improving insulation.
- Nano-Insulation Boards and Aerogel Blankets: Serves as a key filler in advanced thermal insulation products.
- VOC Adsorbent and Cosmetic Additive: Functions as an effective carrier in VOC capture systems and adds textural benefits in cosmetic formulations.
Why Choose Us?
Alfa Chemistry is proud to provide our customers with high-quality powdered aerogel products. In addition, you can customize the product to meet your actual needs in different sizes, morphologies, and densities. If you need help, please call us and we will deliver the product on time and on budget.
FAQs About Powdered Aerogel
1. What makes powdered aerogel superior to conventional insulation materials?
Powdered aerogel offers much lower thermal conductivity, higher porosity, and lighter weight compared to conventional insulators like fiberglass or mineral wool.
2. Can powdered aerogel be used in moisture-prone environments?
Yes, thanks to its superhydrophobic properties, it resists moisture absorption and is suitable for humid or damp conditions.
3. How does the specific surface area benefit industrial applications?
The large surface area is advantageous for adsorption processes, catalysis, and as a filler enhancing thermal insulation in composite materials.
4. Is powdered aerogel safe for human contact, such as in textiles or cosmetics?
Yes, when properly processed, powdered aerogel can be used safely in textiles and cosmetic formulations, offering thermal regulation and textural properties.
5. What is the maximum operating temperature for powdered aerogel?
It can operate effectively up to 800°C, making it ideal for high-temperature insulation applications.
6. How does Alfa Chemistry ensure the sustainability of their aerogel production?
Alfa Chemistry utilizes eco-friendly production methods that minimize waste and reduce environmental impact throughout the manufacturing process.
7. Can powdered aerogel be customized for specific industrial formulations?
Yes, Alfa Chemistry offers tailored particle sizes and surface modifications to suit specialized industrial requirements.
8. What is the storage recommendation for powdered aerogel?
Store in a dry, sealed container away from moisture to maintain its hydrophobic properties and prevent agglomeration.
9. Does the aerogel powder have any load-bearing capacity?
While aerogel powder is not load-bearing, it is highly effective as a lightweight filler or additive in load-bearing composite structures.
10. Are there health concerns related to inhalation of aerogel powder?
Direct inhalation of fine powders should be avoided; appropriate handling procedures, including personal protective equipment, are recommended during processing.
Reference
- Lun Z, et al. Improvement of the Thermal Insulation Performance of Silica Aerogel by Proper Heat Treatment: Microporous Structures Changes and Pyrolysis Mechanism. Gels. 2023. 8(3), 141.
Please kindly note that our products and services are for research use only.
