Particle foam packing box used to cover the fresh food of toxic substances in radiation?
Particle foam packing box used to cover the fresh food of toxic substances in radiation
EPS foam is a thermoplastic material per cubic meter volume contains 300-600 000 independent closed bubble volume, containing air for more than 98%, because of the thermal conductivity of the air is very small, and was closed to not convection foam, so EPS is a kind of very good heat insulation materials.
Plastic is a kind of macromolecule organic material with resin as its main component. It can form a definite shape at a certain temperature and pressure and maintain a definite shape at normal temperature.Usually refers to the resin conversion or melting range when heated into force with mobility, at room temperature is organic polymer solid or semi-solid or liquid plastic, it is the most basic and most important components. Broadly speaking, in the plastics industry, any polymer used as a basic material for plastics can be called resins.
