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High-flowability and high-brightness heat conduction nylon composite material and preparation method thereof

A nylon composite material and high-flow technology, applied in the field of nylon composite materials, can solve problems such as heat resistance, poor fluidity, and inability to mix colors, and achieve the effects of improving thermal conductivity, improving dispersion, and improving fluidity.

Inactive Publication Date: 2016-07-20
SHENZHEN SAPAC IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in order to obtain high thermal conductivity composite materials, various thermal conductive fillers and fillers of different shapes are added to polymer materials to increase the filling volume, which often leads to poor heat resistance and fluidity of polymer thermal conductive materials, and the color cannot be adjusted.

Method used

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  • High-flowability and high-brightness heat conduction nylon composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] In terms of mass fraction, weigh the following raw materials: 660 parts of PA660 with a relative viscosity of 2.4, 40 parts of PA6640 with a relative viscosity of 2.4, 0.3 parts of nano-silicon oxide, 20 parts of spherical aluminum nitride with a diameter of 10 μm, and whisker aluminum nitride with an aspect ratio of 20 20 parts, 0.3 parts of antioxidant 1098 and 168 compound, 2 parts of monoalkoxy pyrophospholipid titanate coupling agent, 3 parts of EBS and oxidized polyethylene, 28 parts of isopropanol;

[0019] Mix and stir 2 parts of the monoalkoxy pyrophospholipid titanate coupling agent with 28 parts of isopropanol, and spray one-thirtieth of the obtained mixed solution onto the nano-silicon oxide stirred at a low speed, and spray After completion, stir again at a high speed, and finally put it into an oven with a set temperature of 95°C. After the solvent evaporates, the treated nano-nano silicon oxide is obtained;

[0020] Spray one-half of the remaining mixed s...

Embodiment 2

[0024] According to the mass fraction, weigh the following raw materials: PA650 parts with a relative viscosity of 2.4, PA6650 parts with a relative viscosity of 2.4, 0.4 parts of nano-silicon oxide, 30 parts of spherical aluminum nitride of 10 μm, whisker aluminum nitride with an aspect ratio of 30 20 parts, 0.3 parts of antioxidant 1098 and 168 compound, 3 parts of monoalkoxy pyrophosphatidyl titanate coupling agent, 3.5 parts of EBS and oxidized polyethylene compound, 47 parts of isopropanol;

[0025] Mix and stir 2.5 parts of the monoalkoxy pyrophospholipid titanate coupling agent with 40 parts of isopropanol solvent, and spray one-fiftieth of the resulting mixed solution onto the nano silicon oxide stirred at a low speed, After the spraying is completed, stir again at a high speed, and finally put it into an oven with a set temperature of 95°C. After the solvent evaporates, the treated nano-nano silicon oxide is obtained;

[0026] Spray three-fifths of the remaining mixed...

Embodiment 3

[0030] According to the mass fraction, the following raw materials were weighed: 100 parts of PA66 with a relative viscosity of 2.4, 0.8 parts of nano-silicon oxide, 40 parts of spherical aluminum nitride of 10 μm, 20 parts of whisker aluminum nitride with an aspect ratio of 30, and 1098 parts of antioxidant Compound 0.6 with 168, 4 parts of monoalkoxy pyrophospholipid titanate coupling agent, 4 parts of EBS and oxidized polyethylene, 56 parts of isopropanol

[0031] Mix and stir 4 parts of the surface treatment agent and 56 parts of ethanol solvent, spray one-thirtieth of the obtained mixed solution onto the nano silicon oxide stirred at a low speed, after the spraying is completed, stir at a high speed, and finally put In an oven set at a temperature of 95°C, after the solvent evaporates, the treated nano-nano silicon oxide is obtained;

[0032] Spray two-thirds of the remaining mixed solution above on the spherical aluminum nitride and the other third on the whisker-type al...

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Abstract

The invention discloses a high-flowability and high-brightness heat conduction nylon composite material which is prepared from the following raw materials in parts by mass: 100 parts of nylon, 0.3 to 0.8 part of a nano functional material, 50 to 95 parts of a nitride heat conduction filler, 0.3 to 0.8 part of an antioxidant, 2.0 to 4.5 parts of a surfactant, 3 to 5 parts of a lubricant and 28 to 60 parts of a solvent, and provides a preparation method suitable for industrial production. According to the high-flowability and high-brightness heat conduction nylon composite material, the flowability of highly filled heat conduction nylon is improved, the dispersivity of the crystallization and heat conduction filler is improved, and the problem of color singleness is further solved.

Description

technical field [0001] The invention belongs to the field of nylon composite materials, and in particular relates to a high-fluidity, high-whiteness heat-conducting nylon composite material and a preparation method thereof. Background technique [0002] Thermally conductive polymer composite materials are functional composite materials processed in a certain way from poor thermal conductors-organic polymers and thermally conductive fillers. Commonly used thermally conductive fillers can be divided into three categories according to color: the first category, aluminum oxide, zinc oxide, magnesium oxide, aluminum nitride, silicon nitride, etc.; the second category, graphite, carbon fiber, carbon nanotubes, etc.; the third category Class, copper powder, silver powder, aluminum powder, etc. [0003] Among them, thermally conductive fillers are used in thermally conductive composite materials because they have different types and shapes that can meet the requirements of general ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L77/06C08L23/30C08K13/06C08K9/04C08K3/36C08K7/18C08K7/04C08K3/28C08K5/20C08K5/526
CPCC08L77/02C08K2201/005C08K2201/011C08K2201/014C08L77/06C08L2205/02C08L2205/03C08L23/30C08K13/06C08K9/04C08K3/36C08K7/18C08K7/04C08K2003/282C08K5/20C08K5/526
Inventor 黄云刚
Owner SHENZHEN SAPAC IND
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