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Graphene-modified heat-conducting and insulating nylon 6 material and preparation method thereof

A graphene modification, heat conduction and insulation technology, which is applied in the field of nylon composite materials, can solve problems such as limited use, and achieve the effects of promoting dispersion, improving thermal conductivity, and improving thermal stability

Inactive Publication Date: 2018-01-30
JINYOUNG XIAMEN ADVANCED MATERIALS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after nylon is added with graphene, it is both conductive and thermally conductive, which limits the use of this material in environments that require insulation.

Method used

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  • Graphene-modified heat-conducting and insulating nylon 6 material and preparation method thereof
  • Graphene-modified heat-conducting and insulating nylon 6 material and preparation method thereof

Examples

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preparation example Construction

[0032] A preparation method of a graphene-modified thermally conductive insulating nylon material, comprising the following steps:

[0033] 1) Take various raw materials according to the above-mentioned formula,

[0034] 2) Dry the high-flow nylon resin at a temperature of 70°C-80°C for 1-2 hours, and then mix it with all other raw materials evenly;

[0035] 3) The mixed raw materials are placed in the lower hopper of the extruder, melted, extruded and granulated by a twin-screw extruder to obtain a graphene-modified thermally conductive and insulating nylon material.

[0036] Further, the process parameters of the above-mentioned twin-screw extruder melt extrusion granulation are: the temperature of the first zone is 190-195°C, the temperature of the second zone is 225-230°C, the temperature of the third zone is 230-235°C, and the temperature of the fourth zone is 225-230°C , the temperature of the fifth zone is 220-225°C, the temperature of the sixth zone is 205-210°C, the ...

Embodiment 1

[0038] A graphene-modified thermally conductive and insulating nylon 6 material comprising the following mass fractions:

[0039] High flow nylon 75.5%; glass fiber 5%; basalt fiber powder 1%; sulfonated graphene 5%; nano molybdenum powder 1%; aluminum nitride 10%; nano cellulose 0.5%; lead nitrate 1%; antioxidant Agent 0.5%; lubricant 0.5%.

[0040] The thermally conductive and insulating nylon 6 material was prepared according to the above method.

Embodiment 2

[0042] A graphene-modified thermally conductive and insulating nylon material comprising the following mass fractions:

[0043] High fluidity nylon 48.5%; glass fiber 12%; basalt fiber powder 4%; sulfonated graphene 9%; nano molybdenum powder 3%; tungsten tetraboride 15%; Oxygen 0.5%; lubricant 1.0%.

[0044] Prepare the thermally conductive and insulating nylon material according to the above method.

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Abstract

The invention provides a graphene-modified heat-conducting and insulating nylon 6 material. The graphene-modified heat-conducting and insulating nylon 6 material is characterized by comprising the following components in percent by mass: 37-75.5% of high-flow nylon, 5-15% of glass fiber, 1-5% of basalt fiber powder, 5-10% of sulfonated graphene, 1-3% of nanometer molybdenum powder, 10-20% of ceramic powder, 0.5-2% of nanometer cellulose, 1-6% of lead nitrate and 1-2% of a processing aid. The invention further discloses a preparation method of the graphene-modified heat-conducting and insulating nylon material. The graphene-modified heat-conducting and insulating nylon material prepared according to the preparation method provided by the invention has an insulating property as well as highheat conductivity, and has the heat conductivity coefficient as high as 4 W / mk.

Description

technical field [0001] The invention relates to a nylon composite material, in particular to a graphene-modified heat-conducting and insulating nylon 6 material and a preparation method thereof. technical background [0002] In recent years, with the development of industrial production and science and technology, high-power electronic and electrical products have developed rapidly, and there are more and more problems such as product heat generation, resulting in reduced product efficacy and shortened service life. Some data show that the reliability of electronic components decreases by 10% for every 2°C increase in temperature; the life at 50°C is only 1 / 6 of that at 25°C. [0003] Nylon 6 is a thermoplastic engineering plastic with excellent performance. It has excellent mechanical properties, good electrical properties, and the advantages of wear resistance, oil resistance, and solvent resistance. It is widely used in automobiles, electronic appliances, machinery and ot...

Claims

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Application Information

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IPC IPC(8): C08L77/02C08L1/02C08K13/04C08K7/14C08K7/10C08K3/04C08K3/08C08K3/28C08K3/34C09K5/14
Inventor 姜其焱蒋士鹏郭永新
Owner JINYOUNG XIAMEN ADVANCED MATERIALS TECH CO LTD
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