FIELD: chemical technology; soil reclamation.
SUBSTANCE: method includes the stages of: a) modifying silicon dioxide; b) synthesis of polyacrylamide hydrogel using the silica obtained in step a); c) removing the resulting gel-like product from the reactor. The increased stability of the resulting moisture-retaining hydrogel is maintained at temperatures down to -40°C and moisture retention lasts up to 5 years.
EFFECT: method ensures the non-halogen production of a modified composite moisture-retaining hydrogel based on acrylic polymers, which has increased stability up to -40°C and increased duration of moisture retention, lasting up to 5 years.
2 cl, 1 tbl, 7 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR PRODUCING NANOCOMPOSITE HYDROGEL FOR ARID SOILS | 2022 |
|
RU2813290C2 |
| METHOD OF IMMOBILIZATION OF OLIGONUCLEOTIDES CONTAINING UNSATURATED GROUPS IN POLYMERIC HYDROGELS IN FORMING MICROCHIP | 1999 |
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RU2175972C2 |
| METHOD OF OBTAINING NANOCOMPOSITIC SORBENT FOR DRYING SOILS | 2016 |
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RU2622430C1 |
| POLYACRYLAMIDE HYDROGEL AND EMPLOYMENT THEREOF AS ENDOPROSTHESIS | 2001 |
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RU2301814C2 |
| MOISTURE-SWELLING SOIL CONDITIONER AND A METHOD OF PREPARATION THEREOF | 1998 |
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RU2189382C2 |
| METHOD OF PREPARING POLYMER HYDROGEL | 2007 |
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RU2378290C2 |
| METHOD OF SYNTHESIS OF COPOLYMERS EXHIBITING HIGH MOISTURE RETENTIVITY | 1994 |
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RU2089561C1 |
| COMPOSITION OF NANOCOMPOSE SORBENT FOR ARID SOILS | 2016 |
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RU2623769C1 |
| METHOD OF INHIBITING FORMATION AND SCALING OF SILICON DIOXIDE IN WATER SYSTEMS | 2009 |
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RU2495833C2 |
| METHOD FOR PRODUCING INSULIN-CONTAINING COMPOSITION | 2020 |
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RU2752509C1 |
