Low-density polyethylene does exhibit a glass transition at around 150K.
The -125 degrees indicate the transition temperature of Polyethylene from glass.
Making jelly jars. Jelly is packaged at a temperature higher than polyethylene's glass transition temperature, so the jars would deform if you tried it.
- the polyethylene plastic bottle is unbreakable- the glass has a solubility (low and dependent on the type of glass) in acids
this is a loaded question. Why do you think there are two Tg's? are you just doing something like DSC? if so do you see two 'bumps'? this does not mean two Tg's, it means there are two thermodynamic transitions taking place. Most likely for PE this is a crystalization and a glass transition.
The glass temperature transition is for glass, polymers, etc. (amorphous or semicrystalline materials), but not for leather.
The -125 degrees indicate the transition temperature of Polyethylene from glass.
Making jelly jars. Jelly is packaged at a temperature higher than polyethylene's glass transition temperature, so the jars would deform if you tried it.
- the polyethylene plastic bottle is unbreakable- the glass has a solubility (low and dependent on the type of glass) in acids
this is a loaded question. Why do you think there are two Tg's? are you just doing something like DSC? if so do you see two 'bumps'? this does not mean two Tg's, it means there are two thermodynamic transitions taking place. Most likely for PE this is a crystalization and a glass transition.
The glass temperature transition is for glass, polymers, etc. (amorphous or semicrystalline materials), but not for leather.
Packages for beer are glass, polyethylene or aluminium.
Some materials are: glass, polyethylene, polypropylene.
The glass transition temperature is the temperature at which an amorphous solid transitions from a rigid, glassy state to a rubbery state, without undergoing a distinct phase change. The melting point is the temperature at which a solid material transitions into a liquid state. The key difference is that the glass transition is a change in the physical properties of a material, while melting involves a change in its phase.
In polyethylene bags or cardboard boxes. Rarely in glass bottles.
how chalcogens form glass and show p-n transition
Arsenic is not typically stored in glass due to its toxicity. Glass containers are not resistant to the corrosive nature of arsenic and can lead to contamination. Instead, arsenic is usually stored in specialized containers made of materials like polyethylene or HDPE (high-density polyethylene).
Examples: glass, polyethylene, polypropylene, inox steel.