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High heat conducting nylon composite material and preparation method thereof

A nylon composite material and composite material technology are applied in the field of high thermal conductivity nylon composite material and its preparation, which can solve the problems of limited application, low thermal conductivity, poor heat dissipation performance, etc., and achieve high industrial value, high thermal conductivity and low price. Effect

Inactive Publication Date: 2014-03-05
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compared with metals, the biggest disadvantage of nylon as a polymer is its low thermal conductivity and poor heat dissipation performance, which largely limits its further application in the industrial field.

Method used

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  • High heat conducting nylon composite material and preparation method thereof
  • High heat conducting nylon composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Weigh 350g of dried PA6 slices, 650g of alumina, 5g of antioxidant 1010 / 168 (according to the ratio of 1:1), 10g of natural graphite flakes, add 10ml of liquid paraffin, mix well and directly add In a twin-screw extruder, melt and knead at a temperature of 245 / 255 / 260 / 260 / 255°C, extrude and granulate, and control the screw speed at 62r / min. After the pellets are dried, they are injection molded into test samples, the injection temperature is 245 / 255 / 260 / 260 / 255°C, the injection pressure is 80MPa, and the mold temperature is 80°C. The performance test results of the obtained composite materials are shown in Table 1.

Embodiment 2

[0025] Implementation method is the same as embodiment 1, and the natural graphite flake is changed into 20g, and other components and quality are constant. The performance test results of the obtained composite materials are shown in Table 1.

Embodiment 3

[0027] Implementation method is the same as embodiment 1, and the natural graphite flake is changed into 50g, and other components and quality are constant. The performance test results of the obtained composite materials are shown in Table 1.

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Abstract

The invention discloses a high heat conducting nylon composite material and a preparation method thereof. The high heat conducting nylon composite material belongs to one of functional high molecules. The composite material is prepared from a thermoplastic nylon resin base body, heat conducting filler and other processing agents. The heat conducting coefficient is greater than 2.7W / m.K. The resin base body can be nylon 6 or a compound of nylon 6, nylon 9, nylon 66, nylon 610 and nylon 1010. The heat conducting filler can be one or more of magnesium oxide, aluminum oxide, aluminum nitride, boron nitride, silicon nitride, a multiwalled carbon nanotube and a graphite flake layer. The processing agents can be octadecanamide, polyethylene wax, liquid paraffin and the like. The method disclosed by the invention is simple to operate and low in cost, and can prepare the heat conducting composite material with excellent comprehensive performance by one step. The method is easy to realize industrialized production and can be widely applied to the fields of automobiles, household appliances, meter cases, circuit elements and the like.

Description

technical field [0001] The invention discloses a high thermal conductivity nylon composite material and a preparation method thereof, which is simple and practical, has high industrial value and broad application prospect. The prepared composite material has high thermal conductivity and can be widely used in the fields of automobiles, household appliances, instrument casings, circuit components and the like. Background technique [0002] With the rapid development of science and technology, polymer materials with only certain structural properties can no longer meet the needs of people's daily life. Due to their light weight, easy processing, high elasticity, corrosion resistance, wear resistance and preparation The advantages of simplicity and ease of industrialization have attracted people's attention. Compared with metal materials, polymer materials are poor conductors of heat. Therefore, the study of high thermal conductivity, low filling, and light weight polymer-bas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L77/06C08K13/04C08K7/00C08K3/04C08K3/22C08K3/28C08K3/34C08K3/38
CPCC08L77/02C08K3/04C08K3/22C08K7/00C08K13/06C08K2003/2227C08L77/06C08L91/06C08K13/04C08K7/24C08K2003/282
Inventor 于中振陈金梅张好斌李晓锋
Owner BEIJING UNIV OF CHEM TECH
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