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Aerogels are ultralight, highly porous materials known for their exceptional thermal insulation properties, as well as their low density and high surface area. Often referred to as "frozen smoke" due to its ethereal appearance, aerogels are created through a process that involves removing the liquid component from a gel and replacing it with air or gas without causing significant shrinkage. This results in a material that is up to 99.98% air by volume yet maintains its structural integrity.
Key features of aerogels include:
1、 Exceptional Insulation: Aerogels are some of the best thermal insulators known due to their extremely low thermal conductivity.
2、Low Density: They are incredibly lightweight, with densities ranging from less than 0.001 g/cm³ to around 0.5 g/cm³.
3、High Surface Area: Aerogels can have surface areas exceeding 1,000 m²/g, which makes them useful in applications requiring large surface areas for reactions or adsorption.
4、Transparency: Some aerogels, like silica aerogels, are transparent to visible light despite their opaqueness in other spectral ranges.
Application of Aerogel:
Aerogels have found applications in various industries due to their unique properties. Some key applications include:
1. Thermal Insulation: In buildings, clothing, and appliances where super insulation with minimal weight addition is required.
2. Energy Efficiency: Used in high-performance windows, building envelopes, and in the aerospace industry to insulate spacecraft.
3. Oil Absorbents: Due to their high surface area, aerogels can absorb large amounts of oils and chemicals, making them useful in environmental cleanup.
4. Soundproofing: Their porous structure can also dampen sound waves, making them applicable in noise reduction applications.
5. Electronics: As insulators or components in advanced electronics due to their low dielectric constant and thermal stability.
6. Catalysis and Filtering: Their high surface area makes them effective catalyst supports or filtration media for gases and liquids.
Cie-china is professional in lightweight concrete and foam concrete solutions. We can supply concrete foaming agent, superplasticizer, aerogel and foam concrete strength enhancer for lightweight concrete mix, CLC blocks all over the world. Send us an email or click on the needed products to send an inquiry.
Payment Term:
L/C, T/T, Western Union, Paypal, Credit Card etc.
Shipment Term:
By sea, by air, by express, as customers request.
Storage conditions:
1) Store in a dry environment at room temperature.
2) Avoid damp and high temperature.
3) Use immediately after opening the inner packing bag.
Q: Are aerogels fragile?
A: Traditional silica aerogels are quite brittle, but advancements have led to the development of flexible or "elastic" aerogels, which are less prone to breaking.
Q: How expensive are aerogels?
A: Historically, aerogels have been relatively expensive due to complex manufacturing processes. However, with technology improvements and scaled-up production, costs have been coming down, making them more accessible for commercial applications.
Q: Can aerogels conduct electricity?
A: Pure aerogels, like silica aerogels, are poor conductors of electricity. However, composite aerogels incorporating conductive materials can be designed to have electrical conductivity.
Q: Are aerogels environmentally friendly?
A: Aerogels themselves do not pose significant environmental hazards, but their production process can involve hazardous solvents. Efforts are ongoing to develop more eco-friendly production methods.
Q: How do you handle aerogels, given their delicate nature?
A: Aerogels, especially the brittle ones, should be handled with care, often using protective gloves to avoid leaving fingerprints or causing damage. Some aerogels come with protective coatings or encapsulation to enhance their durability during handling and use.
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