Constructing a filler network for thermal conductivity enhancement in epoxy composites via reaction-induced phase separation

Y Zhang; YC Shen; K Shi; TW Wang; Eileen Harkin-Jones

doi:10.1016/j.compositesa.2018.04.009

Constructing a filler network for thermal conductivity enhancement in epoxy composites via reaction-induced phase separation

Y Zhang, YC Shen, K Shi, TW Wang, Eileen Harkin-Jones

Research output: Contribution to journal › Article › peer-review

23 Citations (Scopus)

83 Downloads (Pure)

Abstract

Diglycidyl ethers of bisphenol-A (DGEBA)/methyl tetrahydrophthalic anhydride/polyethersulphone (PES) blends are prepared as matrix resins for thermally conductive composites using graphite nanoplatelets (GNPs) as the conductive component. The epoxy/PES blends form a network structure via reaction-induced phase separation (RIPS) during the curing process, and the GNPs are selectively localized in the PES phase and at the interface leading to a three-dimensional continuous filler network. With this unique structure, the thermal conductivity of the epoxy/PES/10 wt% GNPs composite is increased to 0.709 W m-1 K-1, which is nearly 3.5 times that of the pure epoxy or a 52% increase compared to the epoxy/GNP composite without PES. In addition, it is found that the impact strength of the composite relative to the unfilled
material is also improved.

Original language	English
Pages (from-to)	62-69
Number of pages	8
Journal	Composites Part A: Applied Science and Manufacturing
Volume	110
Early online date	12 Apr 2018
DOIs	https://doi.org/10.1016/j.compositesa.2018.04.009
Publication status	Published - Jul 2018

Keywords

Cure
Thermal properties
Polymer-matrix composites (PMCs)

Access to Document

10.1016/j.compositesa.2018.04.009

Constructing a filler network for thermal conductivity enhancement in epoxy composites via reaction-induced phase separationAccepted author manuscript, 864 KB

Fingerprint Dive into the research topics of 'Constructing a filler network for thermal conductivity enhancement in epoxy composites via reaction-induced phase separation'. Together they form a unique fingerprint.

Cite this

@article{e9e91149f5e44dd4acf643d317afaa2b,

title = "Constructing a filler network for thermal conductivity enhancement in epoxy composites via reaction-induced phase separation",

abstract = "Diglycidyl ethers of bisphenol-A (DGEBA)/methyl tetrahydrophthalic anhydride/polyethersulphone (PES) blends are prepared as matrix resins for thermally conductive composites using graphite nanoplatelets (GNPs) as the conductive component. The epoxy/PES blends form a network structure via reaction-induced phase separation (RIPS) during the curing process, and the GNPs are selectively localized in the PES phase and at the interface leading to a three-dimensional continuous filler network. With this unique structure, the thermal conductivity of the epoxy/PES/10 wt% GNPs composite is increased to 0.709 W m-1 K-1, which is nearly 3.5 times that of the pure epoxy or a 52% increase compared to the epoxy/GNP composite without PES. In addition, it is found that the impact strength of the composite relative to the unfilledmaterial is also improved.",

keywords = "Cure, Thermal properties, Polymer-matrix composites (PMCs)",

author = "Y Zhang and YC Shen and K Shi and TW Wang and Eileen Harkin-Jones",

year = "2018",

month = jul,

doi = "10.1016/j.compositesa.2018.04.009",

language = "English",

volume = "110",

pages = "62--69",

journal = "Composites Part A: Applied Science and Manufacturing",

issn = "1359-835X",

publisher = "Elsevier",

}

TY - JOUR

T1 - Constructing a filler network for thermal conductivity enhancement in epoxy composites via reaction-induced phase separation

AU - Zhang, Y

AU - Shen, YC

AU - Shi, K

AU - Wang, TW

AU - Harkin-Jones, Eileen

PY - 2018/7

Y1 - 2018/7

N2 - Diglycidyl ethers of bisphenol-A (DGEBA)/methyl tetrahydrophthalic anhydride/polyethersulphone (PES) blends are prepared as matrix resins for thermally conductive composites using graphite nanoplatelets (GNPs) as the conductive component. The epoxy/PES blends form a network structure via reaction-induced phase separation (RIPS) during the curing process, and the GNPs are selectively localized in the PES phase and at the interface leading to a three-dimensional continuous filler network. With this unique structure, the thermal conductivity of the epoxy/PES/10 wt% GNPs composite is increased to 0.709 W m-1 K-1, which is nearly 3.5 times that of the pure epoxy or a 52% increase compared to the epoxy/GNP composite without PES. In addition, it is found that the impact strength of the composite relative to the unfilledmaterial is also improved.

AB - Diglycidyl ethers of bisphenol-A (DGEBA)/methyl tetrahydrophthalic anhydride/polyethersulphone (PES) blends are prepared as matrix resins for thermally conductive composites using graphite nanoplatelets (GNPs) as the conductive component. The epoxy/PES blends form a network structure via reaction-induced phase separation (RIPS) during the curing process, and the GNPs are selectively localized in the PES phase and at the interface leading to a three-dimensional continuous filler network. With this unique structure, the thermal conductivity of the epoxy/PES/10 wt% GNPs composite is increased to 0.709 W m-1 K-1, which is nearly 3.5 times that of the pure epoxy or a 52% increase compared to the epoxy/GNP composite without PES. In addition, it is found that the impact strength of the composite relative to the unfilledmaterial is also improved.

KW - Cure

KW - Thermal properties

KW - Polymer-matrix composites (PMCs)

U2 - 10.1016/j.compositesa.2018.04.009

DO - 10.1016/j.compositesa.2018.04.009

M3 - Article

VL - 110

SP - 62

EP - 69

JO - Composites Part A: Applied Science and Manufacturing

JF - Composites Part A: Applied Science and Manufacturing

SN - 1359-835X

ER -