FIELD: technological processes.
SUBSTANCE: invention relates to a method for cross-linking of graft silane foamed polymers. Disclosed is a method of producing silane cross-linked foamed polyethylene, involving mixing in an extruder a composition containing a pre-graft (modified) silane polyethylene, cross-linkable, a catalyst and a foam stabilizer, to obtain a melt, injecting the foaming agent into the melt and obtaining the finished product. Sodium benzoate is added to the composition and glycerol stearate is used as the foam stabilizer.
EFFECT: disclosed method increases heat resistance of foamed polyethylene to application temperature of 180 °C and speeds up the cross-linking process.
1 cl, 4 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PREPARING FOAM PLASTIC PREPARED BY SAID METHOD | 1995 |
|
RU2160749C2 |
| CABLE COVER COMPOSITION, CABLE SHEATH AND CABLE, FOR EXAMPLE, POWER CABLE OR COMMUNICATION CABLE | 2016 |
|
RU2703211C1 |
| CROSS-LINKABLE POLYOLEFIN COMPOSITION | 2018 |
|
RU2730523C1 |
| CROSS-LINKABLE POLYOLEFIN COMPOSITION | 2017 |
|
RU2720814C1 |
| METHOD OF MAKING A POWER CABLE AND THE RESULTING POWER CABLE | 2016 |
|
RU2703210C1 |
| MODIFIED FOAMED MATERIAL BASED ON HIGH-PRESSURE POLYETHYLENE AND METHOD OF ITS PRODUCTION | 2023 |
|
RU2823877C1 |
| DRY DISPERSED POLYMER MODIFIER AND ALPHA-OLEFIN COPOLYMERS | 2005 |
|
RU2304597C1 |
| MATERIAL REPLACING RUBBER, CONTAINING TERPOLYMERS | 2018 |
|
RU2777646C2 |
| METHOD OF PRODUCING MISCIBLE POLYETHYLENE-BASED COMPOSITION | 0 |
|
SU1638142A1 |
| UV-RESISTANT PLASTIC FILM OR COATING USED TO PROTECT PLANTS AGAINST UNFAVORABLE CLIMATIC CONDITIONS | 1997 |
|
RU2195468C2 |
