Shell: The outer shell of a vacuum bottle is typically made of a low-conductivity material, such as plastic or stainless steel. This reduces the influence of the external environment on the internal temperature.
Vacuum Layer: The area between the inner and outer bottles is a vacuum layer, containing no air or water molecules. Air and water molecules are thermally conductive, thus the vacuum layer reduces heat transfer.
Adsorption Layer: A heat-reflective coating is created on the inner wall of the vacuum layer. This coating has the property of adsorbing and reflecting heat radiation, effectively reducing the impact on the internal temperature.
Insulation Layer: The inner bottle is impregnated with polyurethane filler, an excellent insulator that further reduces heat transfer.
In summary, the vacuum bottle, through the design of the vacuum layer, adsorption layer, and insulation layer, minimizes heat transfer, thereby achieving a heat preservation effect.
