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Novel heat conduction nylon composite material and preparation method thereof

A technology of nylon composite materials and thermally conductive fillers, which is applied in the field of new thermally conductive nylon composite materials and its preparation, can solve the problems of reducing the carbon footprint of materials, incomplete curing of addition-type thermally conductive silica gel, and no mention of thermally conductive polymer composite materials. Achieve the effect of complete curing and low carbon footprint

Inactive Publication Date: 2015-04-08
GUANGDONG SILVER AGE SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The heat-conducting polymer composite materials involved in the above inventions have not mentioned that they can pass the thermal shock test at -40°C~120°C for more than 1000 hours, nor how to avoid incomplete curing of the addition-type heat-conducting silicone, how to break through the removal of black, The deployment of colors other than white and natural colors and the issue of reducing the carbon footprint of materials

Method used

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  • Novel heat conduction nylon composite material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] According to the mass percentage of raw material formula: PA6 resin 25.0%, thermal conductive filler 35%, reinforcing filler 10%, toughening agent 2.2%, halogen-free flame retardant 25%, coupling agent 0.4%, surface modifier 1%, lubricant 1%, antioxidant 0.2%, toner 0.2%. Mix the weighed PA6 resin, toughening agent and coupling agent in a mixing cylinder at a speed of 100 rpm for 30 seconds, then add antioxidant and toner, and mix for another 30 seconds, then add thermally conductive fillers, no The halogenated flame retardant, surface modifier, and lubricant were mixed for an additional 3 minutes. The mixed raw materials are melted, kneaded and extruded through the intermeshing co-rotating twin-screw extruder, and at the same time, the reinforcing filler is fed into the barrel of the sixth section by using the side feeding device. The temperature control of the twin-screw extruder is as follows: the first section is 180°C~200°C, the second section is 240°C~250°C, the ...

Embodiment 2

[0069] According to the mass percentage of raw material formula: PA6 resin 30.0%, thermal conductive filler 20%, reinforcing filler 15%, toughening agent 2.5%, halogen-free flame retardant 30%, coupling agent 0.3%, surface modifier 0.8%, lubricant 0.8%, antioxidant 0.3%, toner 0.3%. Mix the weighed PA6 resin, toughening agent and coupling agent in a mixing cylinder at a speed of 100 rpm for 30 seconds, then add antioxidant and toner, and mix for another 30 seconds, then add thermally conductive fillers, no The halogenated flame retardant, surface modifier, and lubricant were mixed for an additional 3 minutes. The mixed raw materials are melted, kneaded and extruded through the intermeshing co-rotating twin-screw extruder, and at the same time, the reinforcing filler is fed into the barrel of the sixth section by using the side feeding device. The temperature control of the twin-screw extruder is as follows: the first section is 180°C~200°C, the second section is 240°C~250°C, ...

Embodiment 3

[0072] According to the mass percentage of raw material formula: PA6 resin 35%, thermal conductive filler 15%, reinforcing filler 12%, toughening agent 1.1%, halogen-free flame retardant 35%, coupling agent 0.2%, surface modifier 0.6%, lubricant 0.6%, antioxidant 0.4%, toner 0.1%. Mix the weighed PA6 resin, toughening agent and coupling agent in a mixing cylinder at a speed of 100 rpm for 30 seconds, then add antioxidant and toner, and mix for another 30 seconds, then add thermally conductive fillers, no The halogenated flame retardant, surface modifier, and lubricant were mixed for an additional 3 minutes. The mixed raw materials are melted, kneaded and extruded through the intermeshing co-rotating twin-screw extruder, and at the same time, the reinforcing filler is fed into the barrel of the sixth section by using the side feeding device. The temperature control of the twin-screw extruder is as follows: the first section is 180°C~200°C, the second section is 240°C~250°C, th...

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Abstract

The invention relates to the technical field of high polymer composite materials and particularly relates to a novel heat conduction nylon composite material and a preparation method thereof. The heat conduction nylon composite material is prepared from the following raw materials in percentage by mass: 20-40% of PA6 resin, 15-40% of heat conduction filler, 10-20% of reinforcing filler, 20-40% of a halogen-free flame retardant, 1-3% of flexibilizer, 0.1-0.5% of a coupling agent, 0.4-1.0% of a surface modifier, 0.4-1.0% of a lubricant, 0.1-0.5% of an antioxidant and 0.1-5% of toner, based on 100% in total. Through a hot and cold impact test for over 1000 hours at (-)40 DEG C-120 DEG C, the color of the heat conduction material disclosed by the invention can be regulated to be black, white, self-colored, grey, red, green, and the like without causing incomplete curing of addition type heat conduction silica gel, and thus, the novel heat conduction nylon composite material is halogen-free, flame retardant, and relatively low in carbon footprint.

Description

technical field [0001] The invention relates to the technical field of polymer composite materials, in particular to a novel heat-conducting nylon composite material and a preparation method thereof. Background technique [0002] Existing power-type LED lighting generally adopts traditional aluminum alloy heat-dissipating shells, which have the advantages of good thermal conductivity and high heat transfer efficiency, but also have disadvantages such as high quality, poor electrical insulation and corrosion resistance, complex processing procedures, low production efficiency, and surface plating pollution. . In various fields of modern life, polymer composite products are gradually replacing metal materials due to their unique advantages such as light weight, electrical insulation, corrosion resistance, easy processing, high production efficiency, and no need for spraying treatment. Therefore, replacing the traditional aluminum alloy with a thermally conductive polymer comp...

Claims

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Application Information

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IPC IPC(8): C08L77/02C08L51/04C08K13/04C08K7/14C08K7/08C08K3/38C08K3/22C08K5/134C08K3/34B29C47/92B29C48/92
CPCC08K2003/2241C08L77/02B29C48/92B29C2948/92704C08K2201/003C08K2201/014C08L2201/02C08L2201/22C08L2205/035C08L51/06C08L83/04C08L23/0869C08K13/04C08K7/14C08K3/38C08K2003/2224C08K2003/2227C08K5/1345C08K7/08C08K3/34
Inventor 唐昌伟叶海伦傅轶
Owner GUANGDONG SILVER AGE SCI & TECH CO LTD
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