| 摘要 |
FIELD: transport.SUBSTANCE: lifting system comprises lifter cabin and bearing element. Bearing element carries elevator cabin load and comprises elongated element and shell. Said elongated element works in tension. Shell covers the latter. Said shell includes thermoplastic polymer and fireproof means. Fireproof means comprises compound polymer and halogen-free bloating melamine-based fireproof coating. Compound polymer comprises nano-sized filler mixed with thermoplastic polymer. Halogen-free bloating fireproof melamine-based coating includes one of the following substances: melamine cyanurate, melamine phosphate, melamine pyrophosphate or melamine polyphosphate in amount of 20 wt % of thermoplastic polymer weight.EFFECT: improved characteristics.14 cl, 7 dwg |
