Work

D-GQDs Modified Epoxy Resin Enhances the Thermal Conductivity of AlN/Epoxy Resin Thermally Conductive Composites

Year: 2021

Type: article

Abstract: This article proposes a method of increasing thermal conductivity (λ) by improving the λ value of a matrix and reducing the interfacial thermal resistance between such matrix and its thermally conductive fillers. D-GQDs (graphene quantum dots modified by polyetheramine D400) with a π-π-conjugated system in the center of their molecules, and polyether branched chains that are rich in amino groups at their edges, are designed and synthesized. AlN/DG-ER (AlN/D-GQDs-Epoxy resin) thermally conductive composites are obtained using AlN as a thermally conductive and insulating filler, using D-GQDs-modified epoxy resin as a matrix. All of the thermal conductivity, electrically insulating and physical-mechanical properties of AlN/DG-ER are investigated in detail. The results show that D-GQDs linked to an epoxy resin by chemical bonds can increase the value of λ of the epoxy-resin matrix and reduce the interfacial thermal resistance between AlN and DG-ER (D-GQDs-epoxy resin). The prepared AlN/DG-ER is shown to be a good thermally conductive and insulating packaging material.

Source: Polymers

DOI: 10.3390/polym13234074

Authors: Duanwei Zhang, Fusheng Liu, Sheng Wang, Mengxi Yan, Xin Hu, Mengying Xu

Institutions: Nanjing Forestry University, Nanjing Tech University

Language: English

Topic: Thermal properties of materials

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,376

Funder: National Natural Science Foundation of China