What is Styrofoam™?

Polystyrene foam is made of polystyrene resin as the main body and added with additives such as foaming agent. It is currently the most widely used buffer material.

Styrofoam

Styrofoam is

Styrofoam is

Styrofoam is widely used in various precision instruments, meters, household appliances, etc.

The main ways of recycling polystyrene foam are: granulation after volume reduction, crushing to use as various filling materials, cracking to make oil or recycling styrene and other.

I. Granulation after volume reduction: Styrofoam can be melt extruded and granulated to make recycled pellets, but it is bulky and inconvenient to transport. Usually, volume reduction is required before recycling. Methods include mechanical method, solvent method and heating method.

2. Use as filler after crushing: Polystyrene foam plastic products can be used as filler after crushing to make various products.

Remold into foam plastic products

Concrete composite board products

gypsum sandwich brick

Used as asphalt reinforcement

Used as a soil modifier

3. Cracking to make oil or recovering styrene: The equipment of the method for cracking oil from waste polystyrene foamed plastic is as follows:

Waste polystyrene foam plastic pretreatment heat treatment volume reduction catalytic cracking distillation styrene

4. Others: Waste polystyrene foam can be used to make coatings and adhesives.

Coatings: After the expandable polystyrene foam is crushed, it can be made into lacquer by adding an appropriate solvent.

Styrofoam is useful for molding polystyrene beads. Foam plastic used in household appliances and other packaging or frozen food packaging; there are also a few instant noodle bowls made of expandable polystyrene beads. These plastic products are bulky and costly in terms of tuition and fees, and their recycling has received special attention in China.