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Halogen-free flame-retardant sound-insulation composite material

A composite material and sound insulation layer technology, which is applied in synthetic resin layered products, transportation and packaging, layered products, etc. Performance is difficult to take into account and other problems, to achieve the effect of being conducive to popularization and application, easy to control, and reduce production costs

Active Publication Date: 2015-11-11
ZHUZHOU TIMES NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the prior art generally uses PVC with good flame retardancy and low price as the base material of the sound insulation material or a polymer added with a halogenated flame retardant as the base material. It will produce a lot of smoke and toxic gas mainly HCl, it is difficult to pass the smoke density and smoke toxicity tests of various flame retardant standards; adding halogen-free flame retardants to polymers can make the material meet the smoke density and smoke toxicity However, for the polymer / heavy filler sound insulation system, the existence of a large amount of heavy filler dilutes the content of the flame retardant and deteriorates the flame retardant performance of the material, resulting in a situation where it is difficult to balance the flame retardant performance and the sound insulation performance

Method used

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  • Halogen-free flame-retardant sound-insulation composite material

Examples

Experimental program
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Effect test

Embodiment 1

[0033] (1) Select 100 parts of ethylene-vinyl acetate copolymer particles as the base material of the sound insulation layer, add 400 parts of iron powder and 20 parts of toluene xylyl phosphate, and melt and blend through a twin-screw extruder to obtain a polymer-based sound insulation layer material particles.

[0034] (2) Select 100 parts of ethylene-vinyl acetate copolymer particles as the base material of the flame retardant layer, add 40 parts of pentaerythritol, 120 parts of ammonium polyphosphate and 6 parts of montmorillonite, and melt and blend them through a twin-screw extruder to obtain a polymer Base flame retardant layer material particles.

[0035] (3) The above two materials are put into two extruders of the micro-layer co-extrusion device respectively, and the speed ratio of the two extruders of the polymer-based sound-insulating layer and the polymer-based flame-retardant layer is adjusted to be 1:1, The temperature of each section of the extruder is set at ...

Embodiment 2

[0038] (1) Select 100 parts of thermoplastic polyurethane as the base material of the sound insulation layer, add 450 parts of barium sulfate and 40 parts of triphenyl phosphate, and melt and blend through a twin-screw extruder to obtain polymer-based sound insulation layer material particles.

[0039] (2) Select 100 parts of polyethylene as the base material of the flame retardant layer, add 30 parts of diethyl aluminum hypophosphite, 60 parts of melamine polyphosphate and 6 parts of zinc borate, and melt and blend through a twin-screw extruder to obtain a polymer Base flame retardant layer material particles.

[0040] (3) Put the above two materials into the two extruders of the micro-layer co-extrusion device respectively, adjust the speed ratio of the two extruders of the sound insulation layer and the flame retardant layer to 1.2:1, and the temperature of each section of the extruder Set at 170-190°C. After melting and plasticizing, the two melts are superimposed in the d...

Embodiment 3

[0043] (1) Select 100 parts of styrene-butadiene-styrene block copolymer as the base material of the sound insulation layer, add 500 parts of lanthanum oxide and 50 parts of tris(xylyl) phosphate, and melt blend through a twin-screw extruder A polymer-based acoustic layer material granulate is produced.

[0044] (2) Select 100 parts of polypropylene as the base material of the flame retardant layer, add 30 parts of triazine-based char-forming agent, 90 parts of ammonium polyphosphate and 5 parts of carbon nanotubes, and melt and blend the polymer through a twin-screw extruder Base flame retardant layer material particles.

[0045] (3) Put the above two materials into the two extruders of the micro-layer co-extrusion device respectively, adjust the speed ratio of the two extruders of the sound insulation layer and the flame retardant layer to 1:1.1, and the temperature of each section of the extruder Set at 180-190°C, after melting and plasticizing, the two melts are superimpo...

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Abstract

The invention discloses a halogen-free flame-retardant sound-insulation composite material. The halogen-free flame-retardant sound-insulation composite material provided by the invention is a multi-layer polymer composite material formed by alternately superosing polymer-matrix sound-insulation layers and polymer-matrix halogen-free flame-retardant layers. The halogen-free flame-retardant sound-insulation composite material is endowed with flame-retardant performance by virtue of the flame-retardant layers and endowed with sound-insulation performance by virtue of the sound insulation layers; not only can the overall sound insulation performance of the composite material be obviously improved, but also the HL-3 grade (R10) in the newest European Union flame-retardant standard EN45545-2 can be met.

Description

technical field [0001] The invention relates to a composite material, in particular to a halogen-free flame-retardant and sound-insulating composite material. Background technique [0002] The noise and vibration control of high-speed rail transit has become one of the important contents to improve the comfort of passengers. Reducing vehicle vibration and noise levels has become a very important issue for high-speed rail transit vehicles. In order to deal with the vibration and noise of the train running at high speed, it is necessary to use sound insulation materials on the train to reduce the noise. [0003] In addition to the comfort of trains, the railway industry has higher and higher requirements for fire protection of rail vehicle materials. European and American standards such as BS6853 and DIN5510 require rail transit materials to have good flame retardancy. In March 2016, the European Union will uniformly implement the EN45545 fire protection standard for rail tr...

Claims

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Application Information

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IPC IPC(8): B32B27/08B32B27/18B32B27/20B32B27/22B32B27/28B32B27/30B32B27/32B32B27/40B29C69/02B29C47/00C08L23/08C08L75/04C08L23/06C08L23/12C08L53/02C08K3/08C08K5/523C08K5/053C08K3/32C08K3/34C08K3/30C08K5/3492C08K3/38C08K5/5313C08K3/22C08K7/24
CPCB29C48/0011B29C48/04B29C48/07B32B27/08B32B27/18B32B27/20B32B27/22B32B27/28B32B27/306B32B27/32B32B27/40B32B2250/42B32B2264/12B32B2307/102B32B2307/3065B32B2605/10C08K3/08C08K3/22C08K3/30C08K3/32C08K3/346C08K3/38C08K5/053C08K5/34922C08K5/523C08K5/5313C08K7/24C08K2003/0856C08K2003/221C08K2003/3045C08K2003/323C08L2201/02C08L2201/22C08L23/0853C08L75/04C08L23/06
Inventor 颜渊巍杨金姜其斌楚纯朋胡钊熊昌义
Owner ZHUZHOU TIMES NEW MATERIALS TECH
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