1E-grade K1 type halogen-free flame retardant material for nuclear power plants and application thereof

A flame retardant material and nuclear power plant technology, applied in the direction of circuits, electrical components, insulating cables, etc., can solve problems such as limited application, slow chemical reaction, red phosphorus dust is easy to explode, etc., to improve radiation resistance, improve thermal stability, The effect of excellent flame retardant effect

Active Publication Date: 2012-10-17
SHENZHEN WOER HEAT SHRINKABLE MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

"Research Progress on Microencapsulated Red Phosphorus Flame Retardant" in "China Plastics", Volume 16, Issue 1, 2002, introduced red phosphorus flame retardants, which mentioned that red phosphorus can undergo a slow chemical reaction with air in a humid environment , produces highly toxic phosphine (PH3) gas, and red phosphorus dust is explosive, a

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042]With ethylene-vinyl acetate copolymer (EVA) 85Kg (wherein, the content of vinyl acetate accounts for 18% by weight, melt index is 3.0g / 10min), ethylene-octene copolymer (POE) 10Kg (wherein, the content of octene Content accounts for 20% by weight, melt index is 2.0g / 10min), polyethylene 5Kg, polymer compatibilizer maleic anhydride modified ethylene-vinyl acetate copolymer 10Kg (wherein, the content of copolymer accounts for 8% by weight, Melt index is 5.0g / 10min), polydimethylsiloxane 5Kg, magnesium hydroxide flame retardant 10Kg, hindered amine GW-5401Kg, high molecular weight ammonium polyphosphate 90Kg, antioxidant 1010 (four [β-(3 , 5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester) 1.5Kg, antioxidant DLTP (dilauryl thiodipropionate) 3Kg, antioxidant 9443Kg, anti-copper agent MD- Add 10241.5Kg, lubricant zinc stearate 3Kg, sensitizer trimethylolpropane triacrylate TMPTA 2Kg, color masterbatch 5Kg into the high-speed mixer in turn, stir at high speed ...

Embodiment 2

[0048] With ethylene-vinyl acetate copolymer (EVA) 50Kg (wherein, the content of vinyl acetate accounts for 14% by weight, melt index is 2.0g / 10min), ethylene-octene copolymer (POE) 30Kg (wherein, the content of octene Content accounts for 20% by weight, melt index is 2.0g / 10min), polyethylene 20Kg, polymer compatibilizer maleic anhydride modified ethylene-acrylic acid ester copolymer 10Kg (wherein, the content of copolymer accounts for 2% by weight, melting Index is 5.0g / 10min), silicone rubber 5Kg, superfine magnesium hydroxide flame retardant 60Kg, hindered amine GW-5401Kg, ultraviolet absorber UV-5310.5Kg, melamine pyrophosphate (MPP) 40Kg, antioxidant 10101.5 Kg, antioxidant DLTP 3Kg, antioxidant 6222.5Kg, anti-copper agent MD-10241.5Kg, lubricant stearic acid 3Kg, sensitizer trimethylolpropane trimethacrylate TMPTA 2Kg, color masterbatch 5Kg are added in sequence In a high-speed mixer, stir at high speed for 5-10 minutes, and control the temperature of the material withi...

Embodiment 3

[0054] With ethylene-vinyl acetate copolymer (EVA) 70Kg (wherein, the content of vinyl acetate accounts for 40% by weight, melt index is 2.0g / 10min), EPDM rubber 20Kg, polymer compatibilizer maleic anhydride modified 10Kg of permanent ethylene-vinyl acetate copolymer (wherein, the content of copolymer accounts for 8% by weight, and the melt index is 5.0g / 10min), organosilicon polymer 5Kg, modified magnesium hydroxide flame retardant 40Kg, hindered amine GW -5401.2Kg, ultraviolet absorber UV-5310.8Kg, melamine cyanurate (MCA) 40Kg, DOPO20Kg, antioxidant 10102Kg, antioxidant DSTP 3Kg, antioxidant 6222.5Kg, anti-copper agent MD-10241.5Kg, lubrication Add 3Kg of magnesium stearate, 2Kg of sensitizer 1,3-butanediol dimethacrylate into the high-speed mixer in turn, stir at high speed for 5-10 minutes, and control the temperature of the material within the range of 80°C; The twin-screw extruder is extruded at 100-160°C, wire-drawn, and air-cooled to pelletize; then the above-mentione...

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Abstract

The invention discloses a 1E-grade K1 type halogen-free flame retardant material for nuclear power plants. The material comprises the following substances: 100 parts of vinyl polymers, 1-20 parts by weight of polymer compatilizer, 0.5-10 parts by weight of organosilicon polymers, 1-10 parts by weight of complex antioxidant, 0.1-10 parts by weight of light stabilizer and 0.1-100 parts by weight of high molecular weight ammonium polyphosphate and/or 0.1-50 parts by weight of phosphate flame retardants and/or 0.1-50 parts by weight of melamine cyanurate and/or 0.1-50 parts by weight of melamine pyrophosphate, wherein the complex antioxidant is a complexing agent formed by blending hindered phenol main antioxidants, thioether auxiliary antioxidants, hindered amine auxiliary antioxidants and an anti-copper agent in a weight ratio of 1:(1-4):(1-2):(0.5-1). The material can serve as the insulating material of 1E-grade K1 type halogen-free flame retardant heat shrink tubes, wires and cables and cable accessories for nuclear power plants.

Description

technical field [0001] The invention relates to a halogen-free flame-retardant environment-friendly material and its application, in particular to a 1E-class K1 halogen-free flame-retardant material for nuclear power plants and its application. Background technique [0002] With technological progress and economical considerations, the design life of nuclear power plants continues to extend. The design life of the first-generation nuclear power plants is 20 to 30 years, and the design life of the second-generation nuclear power plants is about 40 years. The design life of the third-generation nuclear power plants now developed The life span has been raised to 60 years. Recently searched for information, foreign countries have begun to study the possibility of nuclear reactors running for 100 years. [0003] Nuclear power generation is the most important clean energy in the medium and long term in the future, and it is also a basic project in my country's main low-carbon eco...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08L23/06C08L51/00C08L83/04C08L23/16C08K13/02C08K3/22C08K3/32C08K5/00C08K5/521C08K5/3492C08K5/103C08J3/28C08J3/24H01B3/44H01B7/295
Inventor 周和平康树峰桂全洪张增果
Owner SHENZHEN WOER HEAT SHRINKABLE MATERIAL
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