FIELD: construction.
SUBSTANCE: method to produce multi-layer foam plastic includes the following stages: preparation of at least two layers of composition capable of foaming, which contain a foaming agent, foaming of composition layers, connection of composition layers by means of welding, cooling of the produced multi-layer product. Besides, the initial composition is acrylimide polymer, besides, layers are connected simultaneously with foaming with the help of diffusion welding.
EFFECT: production of multi-layer foam plastic without density change, reduced hygroscopicity, simplified technological process, production of foamed material with increased strength characteristics.
9 cl, 1 tbl, 6 ex
| Title | Year | Author | Number |
|---|---|---|---|
| MULTILAYER FOAM PLASTICS | 1998 |
|
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