What you don't know about the glass bottle material
What you don't know about glass bottle material: the process of glass material from molten to solid is gradual, and its physical and chemical properties change continuously and gradually. This is obviously different from the crystallization process of the melt. The crystallization process is bound to show a new phase, and many properties will change near the crystallization temperature point. The glassy material from a molten state to solid state is completed in a wide temperature range, with the temperature gradually decreased, the glass melt viscosity increases gradually, finally form a solid glass, but in the process there is no new phase formed. Conversely, the process of heating glass into a melt is gradual.