Radiation cross-linked low-smoke halogen-free red phosphorus-free flame retardant material and its application

A flame-retardant material and irradiation technology, which is applied in the direction of cable/conductor manufacturing, conductors, electrical components, etc., can solve the problems of red phosphorus dust that is easy to explode, slow chemical reaction, and potential safety accidents, and achieve excellent flame-retardant effects. Wide application range, not easy to explode

Active Publication Date: 2012-11-07
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

[0050] With ethylene-vinyl acetate copolymer (EVA) 75Kg (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, high molecular weight ammonium polyphosphate 90Kg, antioxidant 1010 (tetra[β-(3,5-di-tert-butyl Base-4-hydroxyphenyl) propionate] pentaerythritol ester) 1.5Kg, antioxidant DLTP (dilauryl thiodipropionate) 3Kg, antioxidant 944 3Kg, anti-copper agent MD-1024 1.5Kg, lubrication Zinc stearate 3Kg, sensitizer trimethylolpropane triacrylate TMPTA 2Kg, color masterbatch 5Kg are added to the high-speed mixer in turn, and the high-speed stirring is car...

Embodiment 2

[0053] 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, and melt index is 2.0g / 10min), polymer compatibilizer maleic anhydride modified ethylene-acrylate copolymer 10Kg (wherein, the content of copolymer accounts for 2% by weight, and melt index is 5.0g / 10min), silicone rubber 5Kg, superfine magnesium hydroxide flame retardant 60Kg, melamine pyrophosphate (MPP) 40Kg, antioxidant 1010 1.5Kg, antioxidant DLTP 3Kg, antioxidant 6222.5Kg, anti-copper agent Add MD-1024 1.5Kg, lubricant stearic acid 3Kg, sensitizer trimethylolpropane trimethacrylate TMPTA 2Kg, color masterbatch 5Kg into the high-speed mixer in turn, stir at high speed for 5-10 minutes, and control the material temperature at 80 within the range of ℃; then the above mixture is extruded with a twin-screw extruder at a temp...

Embodiment 3

[0056] 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 melt index is 5.0g / 10min), organosilicon polymer 5Kg, modified magnesium hydroxide flame retardant 40Kg, melamine cyanurea MCA (MCA) 40Kg, DOPO 20Kg, antioxidant 1010 2Kg, antioxidant DSTP 3Kg, antioxidant 622 2.5Kg, anti-copper agent MD-1024 1.5Kg, lubricant magnesium stearate 3Kg, sensitizer 1 , 2Kg of 3-butanediol dimethacrylate and 5Kg of color masterbatch are successively added to the high-speed mixer, stirred at high speed for 5-10 minutes, and the temperature of the material is controlled within the range of 80°C; Extrude at -160°C, wire drawing, and air-cooled pelletizing; then extrude the above-mentioned pelletized pellets into a casing at ...

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Abstract

The invention discloses a radiation cross-linked low-smoke halogen-free red phosphorus-free flame retardant material, which comprises the following components of: by weight, 10-80 parts of ethene-vinyl acetate copolymer, 5-30 parts of ethylene-octene copolymer and/or ethene-butene copolymer and/or terpolymer EP rubber, 0-100 parts of polyethylene, 1-20 parts of a polymer compatilizer, 0.5-10 parts of organosilicon polymer, 1-10 parts of a composite anti-oxidant, 0-200 parts of aluminium hydroxide and/or magnesium hydroxide and/or modified aluminium hydroxide and/or modified magnesium hydroxide, 0.1-100 parts of high molecular weight ammonium polyphosphate and/or 0.1-50 parts of a phosphate ester fire retardant and/or 0.1-50 parts of MCA. The material provided by the invention reaches American UL224VW-1 standard when applied in thermal shrinkable tubes, reaches American UL1581VW-1 standard when applied in electric wires and cables, contains no halogen or red phosphorus, and is environmentally friendly.

Description

technical field [0001] The invention relates to a halogen-free flame-retardant environmental protection material and its application, in particular to an irradiation cross-linked low-smoke, halogen-free, red phosphorus-free flame-retardant material and its application. Background technique [0002] As early as the 1970s, various flame-retardant materials have been developed at home and abroad, but most of these flame-retardant materials contain halogens. Although they have a certain flame-retardant effect, when a fire occurs, the burning halogen-containing High-quality flame-retardant materials will produce toxic gases and smog, which not only affects the smooth progress of disaster relief work, but also causes "secondary disasters" to life and property. [0003] So people study and use magnesium hydroxide and aluminum hydroxide as flame retardants. Although products using this flame retardant do not produce toxic smoke when burned, magnesium hydroxide and aluminum hydroxide...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08L23/16C08L23/06C08L83/04C08K13/02C08K3/22C08K13/06C08K9/00C08K3/32C08K5/521C08K5/3492B29B9/06B29C47/92B29C71/04H01B7/295H01B13/24B29C48/92
CPCB29C48/0022B29C48/04B29C48/40B29C48/92B29C2948/92704B29C2948/92895
Inventor 王志勇刘卫东张强康春
Owner SHENZHEN WOER HEAT SHRINKABLE MATERIAL
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