The cold coating of the process glass bottle is sprayed with a monostearate, polyethylene, oleic acid, silane, silicone or other polymer emulsion after the glass bottle is annealed, and attached to the surface of the glass bottle having a certain temperature. (The bottle temperature is about 21 to 80 ° C depending on the material to be sprayed) to form a protective layer having abrasion resistance and lubricity.
The process glass bottle is hot coated after the bottle is formed and before the annealing treatment. The process glass bottle after the process bottle molding is slowly cooled to 500-600 ° C, the metal coating agent is sprayed on the surface of the container to form a protective film with a certain thickness, the surface strength is increased by about 30%, and the bottle can be made Long-term water wash and water wash.
The organopolysiloxane hydrophobic film and the polymerization (SiO 2 ) can be formed by using a silicone evaporation coating or impregnating with a silicone. The silicon oxide film is connected to the glass surface by a common silicon-oxygen bond. After heat treatment, the organic group will volatilize and the silicon oxide film can be filled in the crack. The hydrophobicity can avoid the diffusion of the active medium in the crack and the surface crack will heal. Not only the glass strength and chemical stability are greatly improved. It also gives the glass its special optical properties and impact resistance.
The frosting is spraying carbon tetrachloride in the process of cooling the process glass bottle, or introducing sulfur dioxide in the annealing furnace, both of which can react with the basic oxide on the surface of the bottle to precipitate sodium ions on the surface of the glass. The mirabilite particles (i.e., turbid white powdered Na2S04), after being washed away with water, have enhanced chemical stability of the surface due to a decrease in alkalinity.
Commonly used silicone solutions are methylfluorosilane, dimethyldichlorosilane, diphenyldifluorosilane, and phenyltrichlorosilane.
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