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A compound thermal conductive powder, polypropylene composite material and its preparation method and application

A technology of composite materials and heat-conducting powder, which is applied in the direction of heat exchange materials, chemical instruments and methods, etc., can solve problems affecting the performance of polypropylene composite materials, achieve the effects of reducing density, improving flame retardancy, and improving notched impact strength

Active Publication Date: 2020-12-15
珠海格力新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although the above-mentioned technology can improve the thermal conductivity of the thermally conductive polypropylene-based composite material to a certain extent, the added amount of the thermally conductive filler is as high as 40-70 parts by weight. Such a high added amount not only improves the density of the polypropylene composite material, Also affects other properties of polypropylene composites, such as notched impact strength

Method used

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  • A compound thermal conductive powder, polypropylene composite material and its preparation method and application
  • A compound thermal conductive powder, polypropylene composite material and its preparation method and application
  • A compound thermal conductive powder, polypropylene composite material and its preparation method and application

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Embodiment 1

[0058] This embodiment provides a polypropylene composite material and a preparation method thereof. The polypropylene composite material consists of 25Kg of polypropylene resin, 40Kg of compounded heat-conducting powder, 15Kg of decabromodiphenylethane, 5Kg of diamine phosphorous acid, Composed of 10Kg of POE and 1Kg of antioxidant 1010;

[0059] Among them, the compound thermal conductive powder is composed of aluminum hydroxide, aluminum oxide, magnesium oxide, magnesium hydroxide and zinc oxide with a mass ratio of 15:50:20:15:11, and the particle size is 1250 mesh. Before use, the coupling agent is used for surface treatment, that is, the silane coupling agent is dissolved, atomized at an atomization speed of 10g / min, sprayed into the raw material, stirred at 300r / min, and finally heated at 75°C Drying in the chemical bed, forming a coupling agent layer on the surface of each raw material of the compound heat-conducting powder, and finally mixing the materials of the comp...

Embodiment 2

[0064] This embodiment provides a polypropylene composite material and a preparation method thereof. The polypropylene composite material is composed of 35Kg of polypropylene resin, 4Kg of talcum powder, 30Kg of compound heat-conducting powder, 15Kg of tetrabromobisphenol A, and 5Kg of tribromobisphenol A. Composed of antimony oxide, 10Kg high rubber powder, 1Kg antioxidant 168;

[0065] Among them, the compound thermal conductive powder is composed of aluminum hydroxide, aluminum oxide, magnesium oxide, magnesium hydroxide and zinc oxide with a mass ratio of 10:60:15:20:10, and the particle size is 1000 mesh. Before use, the coupling agent is used for surface treatment, that is, the titanate coupling agent is dissolved, atomized at an atomization speed of 12g / min, sprayed into the raw material, stirred at 250r / min, and finally heated at 80°C Dry in a fluidized bed, form a coupling agent layer on the surface of each raw material of the compound heat-conducting powder, and fina...

Embodiment 3

[0070] This embodiment provides a polypropylene composite material and a preparation method thereof, the polypropylene composite material is composed of 40Kg of polypropylene resin, 4Kg of calcium carbonate, 20Kg of compounded heat-conducting powder, 15Kg of bromotriazine, 5Kg of pentaerythritol, 10Kg of SBS resin, 1Kg of ethylene bis stearic acid amide composition;

[0071] Among them, the compound thermal conductive powder is composed of aluminum hydroxide, aluminum oxide, magnesium oxide, magnesium hydroxide and zinc oxide with a mass ratio of 20:40:25:10:15, and the particle size is 1500 mesh. Before use, the coupling agent is used for surface treatment, that is, the silane coupling agent is dissolved, atomized at an atomization speed of 8g / min, sprayed into the raw material, stirred at 350r / min, and finally heated at 70°C Drying in the chemical bed, forming a coupling agent layer on the surface of each raw material of the compound heat-conducting powder, and finally mixin...

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Abstract

The invention provides a compound heat conductive powder, a polypropylene composite material, a preparation method and an application thereof. The compound heat conductive powder is prepared from Al(OH)3, Al2O3, MgO, Mg(OH)2 and ZnO according to reasonable raw material ratio; when being applied to the polypropylene composite material, the compound heat conductive powder can significantly reduce the density and increase notch impact strength of the polypropylene composite material on the basis of guaranteeing, even increasing the heat conductivity of the composite material. The polypropylene composite material is prepared with the compound heat conductive powder, which is reasonably matched with polypropylene resin, a flame retardant and a flame retarding synergist. The heat conductivity ofthe composite material can be guaranteed even increased just by adding a low amount of the compound heat conductive powder; and the polypropylene composite material is also reduced in density and increased in notch impact strength. Meanwhile, the flame retardant and the flame retarding synergist can be matched, thus reducing smoke generation and improving flame retarding performance.

Description

technical field [0001] The invention belongs to the technical field of heat conduction and flame retardant materials, and in particular relates to a compound heat conduction powder, a polypropylene composite material and a preparation method and application thereof. Background technique [0002] With the rapid development of the new energy vehicle industry, improving the cruising range of new energy vehicles, increasing the energy density of batteries, and accelerating the charging speed of batteries have become the core requirements of new energy vehicles. The above three core requirements are closely related to the battery, which is the core component of new energy vehicles, and the battery box is an important part of the new energy battery, so it also puts forward higher requirements. [0003] The battery box is mainly composed of the box body and the battery. The material of the box body on the market is mainly aluminum alloy, but the density of the aluminum alloy reache...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K3/22C08K9/04C08K9/06C08L23/06C08L51/06C08K13/06C08K5/03C08K5/136C08K5/053C08K5/134C08K5/526C08K5/20C08K5/098C09K5/14
CPCC08K3/22C08K9/04C08K9/06C08K2003/222C08K2003/2224C08K2003/2227C08K2003/2296C08K2201/014C08L23/06C09K5/14C08L51/06C08K13/06C08K5/03C08K5/136C08K3/2279C08K5/053C08K5/1345C08K5/526C08K5/20C08K5/098
Inventor 刘磊孙辉张志平李森张从武王琳郑志豪孙鸿文
Owner 珠海格力新材料有限公司