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High-whiteness, halogen-free, flame-retardant, thermal conductive and insulated PA 6 (polyamide 6)-based composite material and preparation method thereof

A heat-conducting insulation and composite material technology, applied in high whiteness halogen-free flame retardant heat-conducting insulation PA6-based composite material and its preparation, in the field of PA6-based composite material, to achieve good flame retardant performance, increased thermal insulation and oxygen insulation, and flow processing. Sexual improvement effect

Active Publication Date: 2014-04-09
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the lack of composite materials with good appearance and comprehensive thermal conductivity, insulation and flame-retardant properties in the existing polymer modification field, the present invention provides a high-whiteness halogen-free flame-retardant thermal conductivity insulation PA6-based composite material

Method used

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  • High-whiteness, halogen-free, flame-retardant, thermal conductive and insulated PA 6 (polyamide 6)-based composite material and preparation method thereof
  • High-whiteness, halogen-free, flame-retardant, thermal conductive and insulated PA 6 (polyamide 6)-based composite material and preparation method thereof
  • High-whiteness, halogen-free, flame-retardant, thermal conductive and insulated PA 6 (polyamide 6)-based composite material and preparation method thereof

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Embodiment 1

[0023] The total amount of control is 3Kg, 30wt% PA6, 27.5wt% BN, 27.5wt% MgO, 6wt% titanium dioxide, 7wt% aluminum diethylphosphinate, 0.4wt% antioxidant 168, 0.6wt% coupling agent KH550, 1wt% flow modifier S1 is added to the high-speed mixer, and after stirring and mixing at room temperature, the obtained premix is ​​melted, kneaded, extruded, cooled, and cut at a temperature of 220°C to 240°C through a twin-screw extruder. Granulated and dried to obtain a high-whiteness halogen-free flame-retardant thermal-conductive insulating PA6-based composite material. The ratio of each raw material was changed, and the other 7 examples and 2 comparative examples of the present invention were prepared according to the method of Example 1.

[0024] After the prepared composite material was baked at 110°C for 3 hours, it was injection molded into Φ80×1mm, Φ12.7×1.0mm discs for testing resistivity and thermal conductivity, and injection molded into 100.0×50.0×2.5mm square discs and The 1...

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Abstract

The invention discloses a high-whiteness, halogen-free, flame-retardant, thermal conductive and insulated PA 6 (polyamide 6)-based composite material and a preparation method thereof. The raw material formula is composed of the following components according to percentage by mass: 30-40% of polyamide 6, 40-55% of thermal conductive fillers, 5-10% of titanium dioxide, 7-10% of aluminum diethyl phosphinate, 0.4-1.0% of coupling agent, 0.4-1.0% of flow modifier and 0.2-0.5% of antioxidant, wherein the thermal conductive fillers are composed of a filler with a layered structure and a granular filler, the filler with the layered structure is boron nitride, and the length-width ratio is (10:1) to (15:1); the particle size range of the granular filler is 10-40 microns. The vertical combustion of a 1.6 mm sample strip of the PA6-based composite material disclosed by the invention passes UL94V-0 level, the normal thermal conductivity is higher than 1.1 W / m.K, and the high-whiteness, halogen-free, flame-retardant, thermal conductive and insulated PA 6-based composite material has the advantages of high whiteness, good flame retardancy, high thermal conductivity, insulation, good processing fluidity, and the like.

Description

technical field [0001] The invention relates to a PA6-based composite material, in particular to a high-whiteness, halogen-free, flame-retardant, heat-conducting and insulating PA6-based composite material and a preparation method thereof; it belongs to the technical field of polymer material modification. Background of the invention [0002] Engineering plastic polyamide 6 (PA6) has the advantages of light weight, high strength, insulation and easy molding, and it is increasingly replacing metal or ceramics to prepare electronic and electrical components and housings. Since most electronic and electrical components generate heat during operation, the materials used need to have certain thermal conductivity. In addition, electronic and electrical products have higher requirements on the electrical insulation and flame retardancy of materials, but the thermal conductivity of unmodified PA6 is low. , low flame retardant grade, can not meet the needs of use. By adding insulati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08K13/04C08K7/00C08K3/38C08K3/22C08K5/5313
CPCC08K3/22C08K3/38C08K7/00C08K13/04C08K2003/222C08K2003/2227C08K2003/2296C08K2003/385C08K2201/003C08K2201/004C08K2201/016C08L2201/02C08L2201/22C08L77/02
Inventor 赵建青叶海伦刘述梅章明秋袁彦超汪双凤
Owner SOUTH CHINA UNIV OF TECH
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