Аннотация:
Here the description of the possibility of processing technogenic
waste polystyrene in binder materials for foundry is provided. The possibility of
dissolving polystyrene foam in acetone. Regardless of the amount of acetone
that was analyzed, polystyrene absorbs it in a 1:1 ratio, with the formation of a
swollen precipitate. The obtained data of the study “polystyrene–acetone” have
been successfully used as the basic elements of technology for cellular polystyrene
models with implants. Here the prime factor imposing is the kinetics of
polystyrene foam in acetone swelling and the swollen foamy polystyrene precipitate
composition. The precipitate can be used as a binder for molding
compounds. The kinetics of swelling of polystyrene foam and beaded polystyrene
in acetone was studied. The data obtained in the study of the system
“polystyrene foam–acetone” was used in the manufacture of polystyrene models
with implants. The technology for producing polystyrene foam models with
implants includes the need to use a special binder for fixing implanted granules
on the surface of implanted granules. The research results allowed to propose a
new technology for producing foam polystyrene models with implants without
using a special binder.
