Ⅰ、 Concept and characteristics of aerogel
Aerogel is an ultra light microporous material with strong adsorption, heat insulation, sound insulation and shock resistance. Its specific surface area is several hundred times that of ordinary solids, but its weight is only a little bit, and its density is extremely low, making it one of the lightest solid materials in the world. Because of its unique physical and chemical properties, aerogels have been widely used in many fields.
Ⅱ、 Use of aerogel
1. Sound insulation and noise reduction
Because of its unique pore structure and large specific surface area, aerogels can absorb and disperse sound waves and convert them into tiny heat energy. Therefore, aerogels are widely used in building sound insulation, automobile noise reduction, aerospace and other fields.
2. Thermal insulation
Aerogel has low thermal conductivity and high thermal resistance, which can effectively isolate heat and keep temperature. Therefore, aerogel is widely used in cold and hot medium transmission pipelines, water heaters, compressors, transmission lines and other fields.
Ⅲ. Adsorption and dehumidification
Aerogel has strong adsorption capacity, which can absorb and remove water vapor and harmful gas in the air, and prevent the breeding of mold and bacteria. Therefore, aerogels are widely used in air conditioning, electronic devices, food packaging, humidity regulation and other fields.
Ⅳ. Other uses
Aerogels are also used in optical devices, coating materials, environmental pollution control, catalyst carriers and other fields.
In general, as a new material, aerogel has a broad application prospect. With the continuous progress of science and technology and people's higher requirements for environmental protection, energy conservation and emission reduction, the use of aerogels will become more and more diversified and widespread.
Application fields of aerogel:
1. Thermal insulation material: aerogel has extremely low thermal conductivity and can be used as efficient thermal insulation material for building insulation, refrigerated vehicle insulation, oil pipeline and storage tank insulation, etc
2. Treatment of environmental pollution: aerogel can be used in oil and water separation, water treatment, air purification and other fields, such as industrial wastewater treatment and indoor air purification of harmful substances.
3. Acoustic isolation: due to its pore structure and low density, aerogel can be used for sound absorption and sound insulation, and can be used to manufacture sound insulation boards, sound processing equipment, etc.
4. Lightweight composite materials: aerogels can be combined with other materials such as polymers, metals, etc. to produce lightweight composite materials, which can be used in automotive, aerospace and other fields to reduce the weight of materials.
5. Thermal oil recovery improvement: gas gel can be used in the field of thermal oil recovery to inject it into the reservoir to reduce heat loss and improve oil recovery efficiency.
6. Protection of electronic devices: due to its good thermal insulation and vibration resistance, aerogel can be used for the protection of electronic devices to reduce the impact of temperature changes and vibration on electronic devices.
7. Biomedicine: aerogels can be used in biomedical fields, such as drug release, tissue engineering, artificial organs, etc.
8. Other aspects: aerogel has many other applications, such as fire safety materials, solar energy absorption materials, ship buoyancy materials, etc.