The working principle of ethyl silicate can be summarized as follows:
Published Time:
2023-10-23
Ethyl silicate, a versatile material exhibiting the advantages of both inorganic and organic materials, is synthesized through a chemical reaction between inorganic ammonium silicate and ethanol.
The working principle of ethyl silicate can be summarized as follows:
1. Components
Ethyl silicate is an inorganic-organic composite material, prepared by the condensation of inorganic ammonium silicate and organic ethanol under the action of an acid catalyst.
2. Reaction mechanism
Under acid catalysis, the silicon-hydroxyl group of ammonium silicate undergoes a condensation reaction with ethanol to form a silicate ester bond, while producing ammonia and water.
3. Preparation method
An ammonium silicate solution and ethanol are mixed in a certain proportion, an acid catalyst is added, and the mixture is heated and refluxed to obtain an ethyl silicate solution. After concentration, washing, and drying, the ethyl silicate product is obtained.
4. Properties
Ethyl silicate combines the hydrophobicity of organic silicates and the heat insulation of inorganic silicon, making it an excellent sealing and heat insulation material.
5. Uses
Ethyl silicate is mainly used for sealing and heat insulation of high-temperature equipment, such as heat insulation coatings for steam pipes and industrial furnaces. It can also be used in building materials and electrical appliances.
6. Advantages
Ethyl silicate has widely available raw materials, simple operation, a wide operating temperature range, and good sealing and heat insulation effects.
In summary, ethyl silicate is synthesized through a chemical reaction of inorganic ammonium silicate and ethanol, resulting in a widely used material that exhibits the advantages of both inorganic and organic materials.
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