Halogen-free low-smoke flame retardant double-layer insulating outer layer material for area-1 cable of AP1000 nuclear power station and preparation method thereof
A low-smoke, flame-retardant, double-layer insulation technology, applied to rubber insulators, organic insulators, etc., can solve the problem of rare production of containment cables and achieve improved hot water resistance and water vapor resistance, good mechanical properties, good The effect of flame retardancy
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Embodiment 1
[0055] The third-generation AP1000 nuclear power plant zone 1 cable uses a halogen-free low-smoke flame-retardant double-layer insulation outer layer material, and its raw materials include: a matrix composed of EPDM rubber, binary ethylene propylene rubber, and ethylene vinyl acetate copolymer rubber. A halogen-free flame retardant and smoke suppression system consisting of magnesium hydroxide with a particle size of 0.6 μm, aluminum hydroxide with a particle size of 0.9 μm, zinc borate pentahydrate, ammonium polyphosphate coated with microcapsules, and siloxane. Anti-radiation system composed of nano-cerium oxide and lead monoxide, vulcanization system composed of 98% bis-tert-butylperoxycumene, N,N`-m-phenylene bismaleimide, composed of 2-mercapto The protection system composed of benzimidazole zinc salt, p-, p-dicumyl diphenylamine and nano-scale zinc oxide, the coupling agent composed of vinyl tris (β-methoxyethoxy) silane, composed of Lubricating and softening system com...
Embodiment 2
[0080] The third-generation AP1000 nuclear power plant zone 1 cable uses a halogen-free low-smoke flame-retardant double-layer insulation outer layer material, including the following components and parts by weight:
[0081] EPDM rubber 25 parts
[0082] 37.5 parts of binary ethylene propylene rubber
[0083] Ethylene vinyl acetate copolymer rubber 37.5 parts
[0084] 40 parts of magnesium hydroxide with a particle size of 0.6 μm
[0085] 120 parts of 0.9 μm aluminum hydroxide
[0086] Zinc borate pentahydrate 10 parts
[0087] Microcapsules coated ammonium polyphosphate 10 parts
[0088] 5 parts of cerium dioxide
[0089] 20 parts of nano-sized zinc oxide
[0090] Di-tert-butyl peroxycumene 98% 3 parts
[0091] 1 part of N,N`-m-phenylene bismaleimide
[0092] 1.5 parts of 2-mercaptobenzimidazole zinc salt
[0093] Right, right'-dicumyl diphenylamine 2 parts
[0094] Microcrystalline paraffin 2 parts
[0095] 0.5 parts of stearic acid
[0096] Vinyl tris(β-methoxye...
Embodiment 3
[0105] The third-generation AP1000 nuclear power plant zone 1 cable uses a halogen-free low-smoke flame-retardant double-layer insulation outer layer material, including the following components and parts by weight:
[0106] EPDM rubber 20 parts
[0107] 50 parts of binary ethylene propylene rubber
[0108] Ethylene vinyl acetate copolymer rubber 30 parts
[0109] 70 parts of magnesium hydroxide with a particle size of 0.6 μm
[0110] 80 parts of aluminum hydroxide with a particle size of 0.9 μm
[0111] Zinc borate pentahydrate 10 parts
[0112] Microcapsules coated ammonium polyphosphate 20 parts
[0113] 5 parts of cerium dioxide
[0114] 20 parts of nano-sized zinc oxide
[0115] Di-tert-butyl peroxycumene 98% 3 parts
[0116] 1 part of N,N`-m-phenylene bismaleimide
[0117] 1 part of 2-mercaptobenzimidazole zinc salt
[0118] Right, p-'-dicumyl diphenylamine 2.5 parts
[0119] Microcrystalline paraffin 2 parts
[0120] 0.3 parts of stearic acid
[0121] Vinyl ...
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