Preparation and performances of novel polyphosphazene-based thermally conductive composites

TY - JOUR

T1 - Preparation and performances of novel polyphosphazene-based thermally conductive composites

AU - Zou, Wenqi

AU - Basharat, Majid

AU - Dar, Sami Ullah

AU - Zhang, Shuangkun

AU - Abbas, Yasir

AU - Liu, Wei

AU - Wu, Zhanpeng

AU - Zhang, Teng

N1 - Publisher Copyright: © 2019 Elsevier Ltd

PY - 2019/4

Y1 - 2019/4

N2 - Herein, we demonstrated poly(diaryloxy)phosphazene (PDPP) which has inherent thermal stability and flame retardancy, is used as a matrix material for the fabrication of novel thermal conductive composites (TCCs) with variety of thermal conductive fillers including aluminum oxide (Al 2 O 3 ), boron nitride (BN), silicon carbide (SiC) and expended graphite (EG) with different particle size and volume fraction by special processing method. Thermogravimetric analysis (TGA) and limit oxygen index (LOI) results indicated that the TCCs own excellent thermal stability and flame retardancy. SEM analyses of the as-prepared materials showed high orientation degree of flake-like fillers after processing. The thermal conductivity (TC) of the TCCs measurements implied that the EG is the most effective filler to enhance the TC. TC measured in-plane direction reaches a highest value 7.05 Wm −1 K −1 for EG filled samples, which is times higher than PDPP matrix. This work explored a great potential of polyphosphazenes as a matrix material for TCCs.

AB - Herein, we demonstrated poly(diaryloxy)phosphazene (PDPP) which has inherent thermal stability and flame retardancy, is used as a matrix material for the fabrication of novel thermal conductive composites (TCCs) with variety of thermal conductive fillers including aluminum oxide (Al 2 O 3 ), boron nitride (BN), silicon carbide (SiC) and expended graphite (EG) with different particle size and volume fraction by special processing method. Thermogravimetric analysis (TGA) and limit oxygen index (LOI) results indicated that the TCCs own excellent thermal stability and flame retardancy. SEM analyses of the as-prepared materials showed high orientation degree of flake-like fillers after processing. The thermal conductivity (TC) of the TCCs measurements implied that the EG is the most effective filler to enhance the TC. TC measured in-plane direction reaches a highest value 7.05 Wm −1 K −1 for EG filled samples, which is times higher than PDPP matrix. This work explored a great potential of polyphosphazenes as a matrix material for TCCs.

KW - Composites

KW - Expended graphite

KW - Polyphosphazene

KW - Thermal conductivity

UR - http://www.scopus.com/inward/record.url?scp=85060956318&partnerID=8YFLogxK

U2 - 10.1016/j.compositesa.2019.01.024

DO - 10.1016/j.compositesa.2019.01.024

M3 - 文章

AN - SCOPUS:85060956318

SN - 1359-835X

VL - 119

SP - 145

EP - 153

JO - Composites Part A: Applied Science and Manufacturing

JF - Composites Part A: Applied Science and Manufacturing

ER -