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The high thermal conductivity composite of PA 6/h-BN prepared by micron mixing in the solution
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  • Jingqi Shang,
  • Wei Wu,
  • Yongqi He,
  • Ronggang Lin
Jingqi Shang
Zhongkai University of Agriculture and Engineering College of Chemistry and Chemical Engineering

Corresponding Author:[email protected]

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Wei Wu
Zhongkai University of Agriculture and Engineering College of Chemistry and Chemical Engineering
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Yongqi He
Zhongkai University of Agriculture and Engineering College of Chemistry and Chemical Engineering
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Ronggang Lin
Zhongkai University of Agriculture and Engineering College of Chemistry and Chemical Engineering
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Abstract

The polyamide 6 powder was prepared by the liquid phase method, and then mixed with hexagonal boron nitride (h-BN) in a high-pressure homogenizer for micron-level mixing, and finally the composite material is obtained by hot pressing. The thermal conductivity of composites was as high as 1.73 W/(m•K). The results showed that the dispersion of h-BN in the matrix was well and there was no obvious agglomeration in the composite from the scanning electron microscope. Differential scanning calorimetry and X-ray diffraction results showed that h-BN affects the crystalline of polyamide 6 and the thermal stability of the composites was improved. The composite is expected to be used in high thermal conductivity functional plastics.