FIELD: chemistry.
SUBSTANCE: invention relates to multilayer sealing material used in aerospace industry. Sealing material contains first, second and intermediate sealing layers. The intermediate layer lies between the first and second sealing layers and is deposited from a composition which contains a polymer mixture from at least one polysulphide component (i) and at least one polythioether component (ii). In the sealing material, either the first or the second sealing layer is based on using chemical properties of polysulphide, and the other is based on using chemical properties of polythioether. In the polysulphide component, one polysulphide polymer has molecular weight of 1000 and one polysulphide polymer has molecular weight of 4000.
EFFECT: increased adhesion of layers of the sealing material, faster hardening and longer life.
21 cl, 2 tbl, 1 ex
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2006 |
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| PREFORMED EMI/RFI-SHIELDING COMPOSITIONS IN PROFILED FORM AND METHOD OF HOLE HERMETIC SEALING |
2004 |
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RU2336288C2 |
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2005 |
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RU2399638C2 |
| MICHAEL ADDITION CURING REACTIONS FOR SULPHUR-CONTAINING POLYMER COMPOSITIONS |
2013 |
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RU2608739C2 |
| COMPOSITIONS OF ELECTROCONDUCTIVE SEALANTS |
2012 |
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RU2573673C2 |
| SEALING COMPOSITION BASED ON A BASE POLYMER WITH A TERMINAL MERCAPTO GROUP/EPOXY COMPOSITION AND A METHOD FOR ITS HARDENING BY MEANS OF A PHOTOLATENT CATALYST |
2016 |
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RU2695166C2 |
| REACTIVE ANTIOXIDANTS, PREPOLYMERS CONTAINING ANTIOXIDANTS, AND THEIR COMPOSITIONS |
2016 |
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- Lin, Renhe
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RU2686330C1 |
| CATALYTIC COMPOSITIONS AND THIOLENE-BASED COMPOSITIONS WITH INCREASED EFFECTIVE USE TIME |
2016 |
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RU2719389C2 |
| DIETHYLENE GLYCOL MONOMETHYL ETHER RESISTANT COATING |
2011 |
- Abrami Siamanto
- Sun Tszin'
- Tan Guanljan
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RU2552855C2 |
| FUEL-RESISTANT SULFUR-CONTAINING POLYMER COMPOSITES WITH LOW DENSITY AND APPLICATION THEREOF |
2016 |
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RU2677151C1 |
