Hot water bottle mouth sealing ring is made of what material
Silica gel according to its properties and components can be divided into two categories, organic silicone and inorganic silica gel. According to its shape is divided into extrusion silicone and molded silicone. Inorganic silica gel is a highly active adsorption material, usually is to use sodium silicate and sulfuric acid reaction, and the aging, acid soak and a series of post-processing process and system. Silica gel is amorphous material, its chemical formula is mSiO2. NH2O. Insoluble in water and any solvents, non-toxic tasteless, stable chemical properties, in addition to the strong alkali, hydrofluoric acid does not react with any material. Various types of silicone because of the different manufacturing methods and form different microporous structure. Chemical components and physical structure of the silica gel, determines it has many other features of similar materials difficult to replace, high adsorption properties, thermal stability, chemical stability, has high mechanical strength, etc. Organic silica gel is a kind of organic silicon compounds, refers to contain Si - C keys, and at least one organic group is directly linked to the silicon atoms compounds, habits are often those with oxygen, sulfur, nitrogen, etc organic base connected to the silicon atoms compounds as organic silicon compounds. With silica, among them the key (- Si - O - Si -) as the skeleton of polysiloxane, is the largest organic silicon compounds, and studies the deepest, the most widely used type of account for about 90% of the total amount above. Extrusion silicone are common, such as the home of the sealing ring on the rice cooker, called the rice cooker silicone seal.
Hot water bottle mouth sealing ring material is food grade silica gel. Silica gel (Silica gel, Silica) alias: silicone rubber is a kind of highly active adsorption material, amorphous materials, the chemical formula for mSiO2 · nH2O. Insoluble in water and any solvents, non-toxic tasteless, stable chemical properties, in addition to the strong alkali, hydrofluoric acid does not react with any material. Various types of silicone because of the different manufacturing methods and form different microporous structure. Chemical components and physical structure of the silica gel, determines it has many other similar materials difficult to replace features: high adsorption properties, thermal stability, chemical stability, has high mechanical strength, etc. Silica gel according to the size of the aperture is divided into: macroporous silica gel, coarse pore silica gel, b-type silica gel, silica.
These seals are used for the product non-toxic tasteless silicone rubber material.
