High thermal conductivity flame-retardant nylon composite material and preparation method thereof

A technology of flame-retardant nylon and composite materials, which is applied in the field of high thermal conductivity flame-retardant nylon composite materials and its preparation, can solve problems such as poor dispersion and thermal conductivity, excessive filling, and complicated procedures, and achieve low density and high phase density. Effects of capacitive, easy dispersion and processing

Active Publication Date: 2016-02-03
SHENZHEN WOTE ADVANCED MATERIALS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies in the above-mentioned prior art, provide a high thermal conductivity flame-retardant nylon composite material and its preparation method, in order to solve the t...

Method used

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  • High thermal conductivity flame-retardant nylon composite material and preparation method thereof
  • High thermal conductivity flame-retardant nylon composite material and preparation method thereof
  • High thermal conductivity flame-retardant nylon composite material and preparation method thereof

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preparation example Construction

[0039] Correspondingly, on the basis of the high thermal conductivity and flame retardant nylon composite material described above, the embodiment of the present invention also provides a preparation method of the high thermal conductivity and flame retardant nylon composite material. In one embodiment, the preparation method of the high thermal conductivity flame-retardant nylon composite material comprises the following steps:

[0040] Step S01: Weigh the raw materials of each component according to the components of the high thermal conductivity and flame-retardant nylon composite material of the embodiment of the present invention described above;

[0041] Step S02: Mix the carbon-based micro-nano thermally conductive filler, metal-based micro-nano thermally-conductive filler, non-metallic non-carbon micro-nano thermally-conductive filler and compatibilizer weighed in step S01 at 80-150°C for 1-10min, and then add For nylon 6, heat up to 215-230°C and mix for 1-10 minutes ...

Embodiment 1

[0052] A high thermal conductivity flame retardant nylon composite material and a preparation method thereof, the high thermal conductivity flame retardant nylon composite material is prepared according to the following method:

[0053] S11: Mix 5KG flake graphite, 30KG silver-plated attapulgite (the mass ratio of silver to attapulgite is 0.3), 30KG aluminum nitride fiber and 2KG aluminate coupling agent at 80°C for 10min, then add 10KG nylon 6 powder, Raise the temperature to 215 and mix for 10 minutes to obtain the first mixture;

[0054] S12: Mix the first mixture with 30KG nylon 6 powder, 3.5KG decabromodiphenylethane, 1.5KG antimony trioxide, 0.5KG antioxidant 1098, 0.5KG antioxidant 627, 1KG lubricant silicone powder and color powder mixed to obtain a second mixture;

[0055] S13: The second mixture is melt-extruded at 230-250° C., drawn, water-cooled and pelletized to obtain high thermal conductivity and flame-retardant micro-nano nylon.

Embodiment 2

[0057] A high thermal conductivity flame retardant nylon composite material and a preparation method thereof, the high thermal conductivity flame retardant nylon composite material is prepared according to the following method:

[0058] S21: Mix 30KG expanded graphite, 10KG copper-coated mica powder (the mass ratio of copper to mica powder is 10), 10KG silicon nitride whiskers and 0.5KG stearic acid at 150°C for 1min, then add 5KG nylon 6 powder, and heat up to Mix at 230°C for 1 min to obtain the first mixture;

[0059] S22: Mix the first mixture with 60KG nylon 9T powder, 12KG brominated polystyrene, 3KG antimony trioxide, 0.1KG antioxidant 1010, 0.1KG antioxidant 168, 0.1KG lubricant PETS and toner to obtain the second mixture;

[0060] S23: The second mixture is melt-extruded at 260-300°C, drawn, water-cooled and pelletized to obtain a high thermal conductivity flame-retardant micro-nano nylon.

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Abstract

The invention discloses a high thermal conductivity flame-retardant nylon composite material and a preparation method thereof. The high thermal conductivity flame-retardant nylon composite material is prepared from the following components in parts by weight: 30 to 60 parts of nylon, 65 to 10 parts of nylon, 10 to 30 parts of carbon micro-nano thermal conductive filler, 10 to 30 parts of metal micro-nano thermal conductive filler, 10 to 30 parts of nonmetal and non-cabonic micro-nano thermal conductive filler, 5 to 15 parts of flame retardant, 0.5 to 2 parts of compatilizer, 0.5 to 1 part of antioxidant, 0.5 to 1 part of lubricating agent and 0 to 3 parts of toner. The high thermal conductivity flame-retardant nylon composite material disclosed by the invention has the advantages of excellent dispersibility, high heat conducting property, small filling content, low density and excellent processing performance; the preparation method of the high thermal conductivity flame-retardant nylon composite material is simple in process, controllable in conditions, low in cost and suitable for industrial production.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a high thermal conductivity flame-retardant nylon composite material and a preparation method thereof. Background technique [0002] With the development of industrial production and science and technology, many fields have put forward higher requirements on the thermal conductivity of materials, especially in the application of chip packaging and lamp design in the field of LEDs, which need to release the heat generated by LEDs through thermal conductive materials. At present, almost all radiators used in LED lighting products on the market are metal materials or ceramic materials, but metal products have a large proportion and many molding processes (such as die-cast aluminum: a part that needs to be cast, die-cast, polished, polished, nickel-plated, and nitrided) series process), long molding cycle, and large equipment space; ceramic products have more complex moldin...

Claims

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Application Information

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IPC IPC(8): C08L77/02C08L77/06C08K13/06C08K9/10C08K9/06C08K9/04C08K3/04C08K3/34C08K7/04C08K7/24C08K7/10C08K3/08C08K7/08C08K7/06C08K3/38
CPCC08K3/04C08K3/08C08K3/38C08K7/06C08K7/08C08K7/24C08K9/04C08K9/06C08K9/10C08K13/06C08K2003/0812C08K2003/385C08K2201/003C08K2201/011C08K2201/016C08L77/02C08L77/06C08L2201/02C08L83/04C08K9/02C08K3/346C08K7/04C08K3/2279C08L25/06C08K3/34C08K7/10C08K5/1345C08K5/526
Inventor 曾永斌吴宪何征刘则安
Owner SHENZHEN WOTE ADVANCED MATERIALS
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