Novel exfoliated graphite nanoplates/syndiotactic polystyrene composites prepared by solution-blending

Fu An He; Hui Jun Wu; Xin Li Yang; Kwok Ho Lam; Jin Tu Fan; Lai Wa Helen Chan

doi:10.1016/j.polymertesting.2015.01.002

Novel exfoliated graphite nanoplates/syndiotactic polystyrene composites prepared by solution-blending

Fu An He, Hui Jun Wu, Xin Li Yang, Kwok Ho Lam, Jin Tu Fan, Lai Wa Helen Chan

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

19 Citations (Scopus)

Abstract

Novel exfoliated graphite nanoplates (xGNPs)/syndiotactic polystyrene (sPS) composites were prepared by a simple and effective solution-blending method. The uniform dispersion of xGNPs in sPS matrix was confirmed by scanning electron microscopy. The effect of xGNPs on sPS crystallization behavior was investigated by wide angle X-ray diffraction and differential scanning calorimetry. It was found that the existence of xGNPs increased the crystallization ability of sPS and facilitated the formation of the β phase crystalline structure. By adding 10 wt.% of xGNPs, the increase in the onset degradation temperature of the xGNPs/sPS composite could reach 12°C. The AC electrical conductivity at 1000 Hz increased from 3.8 × 10-10S/m for neat sPS to 2.25 × 10-4S/m for xGNPs/sPS composite containing 2.93 vol.% of xGNPs. Moreover, the thermal conductivity of the xGNPs/sPS composite containing 8.26 vol.% has been significantly improved from 0.21 to 1.63 W/m·K when compared with that of pure sPS.

Original language	English
Pages (from-to)	45-53
Number of pages	9
Journal	Polymer Testing
Volume	42
DOIs	https://doi.org/10.1016/j.polymertesting.2015.01.002
Publication status	Published - 1 Jan 2015

Keywords

AC electrical conductivity
Crystallization behavior
Thermal conductivity
Thermal stability
xGNPs/sPS composites

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics

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10.1016/j.polymertesting.2015.01.002

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title = "Novel exfoliated graphite nanoplates/syndiotactic polystyrene composites prepared by solution-blending",

abstract = "Novel exfoliated graphite nanoplates (xGNPs)/syndiotactic polystyrene (sPS) composites were prepared by a simple and effective solution-blending method. The uniform dispersion of xGNPs in sPS matrix was confirmed by scanning electron microscopy. The effect of xGNPs on sPS crystallization behavior was investigated by wide angle X-ray diffraction and differential scanning calorimetry. It was found that the existence of xGNPs increased the crystallization ability of sPS and facilitated the formation of the β phase crystalline structure. By adding 10 wt.% of xGNPs, the increase in the onset degradation temperature of the xGNPs/sPS composite could reach 12°C. The AC electrical conductivity at 1000 Hz increased from 3.8 × 10-10S/m for neat sPS to 2.25 × 10-4S/m for xGNPs/sPS composite containing 2.93 vol.% of xGNPs. Moreover, the thermal conductivity of the xGNPs/sPS composite containing 8.26 vol.% has been significantly improved from 0.21 to 1.63 W/m·K when compared with that of pure sPS.",

keywords = "AC electrical conductivity, Crystallization behavior, Thermal conductivity, Thermal stability, xGNPs/sPS composites",

author = "He, {Fu An} and Wu, {Hui Jun} and Yang, {Xin Li} and Lam, {Kwok Ho} and Fan, {Jin Tu} and {Helen Chan}, {Lai Wa}",

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doi = "10.1016/j.polymertesting.2015.01.002",

language = "English",

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T1 - Novel exfoliated graphite nanoplates/syndiotactic polystyrene composites prepared by solution-blending

AU - He, Fu An

AU - Wu, Hui Jun

AU - Yang, Xin Li

AU - Lam, Kwok Ho

AU - Fan, Jin Tu

AU - Helen Chan, Lai Wa

PY - 2015/1/1

Y1 - 2015/1/1

N2 - Novel exfoliated graphite nanoplates (xGNPs)/syndiotactic polystyrene (sPS) composites were prepared by a simple and effective solution-blending method. The uniform dispersion of xGNPs in sPS matrix was confirmed by scanning electron microscopy. The effect of xGNPs on sPS crystallization behavior was investigated by wide angle X-ray diffraction and differential scanning calorimetry. It was found that the existence of xGNPs increased the crystallization ability of sPS and facilitated the formation of the β phase crystalline structure. By adding 10 wt.% of xGNPs, the increase in the onset degradation temperature of the xGNPs/sPS composite could reach 12°C. The AC electrical conductivity at 1000 Hz increased from 3.8 × 10-10S/m for neat sPS to 2.25 × 10-4S/m for xGNPs/sPS composite containing 2.93 vol.% of xGNPs. Moreover, the thermal conductivity of the xGNPs/sPS composite containing 8.26 vol.% has been significantly improved from 0.21 to 1.63 W/m·K when compared with that of pure sPS.

AB - Novel exfoliated graphite nanoplates (xGNPs)/syndiotactic polystyrene (sPS) composites were prepared by a simple and effective solution-blending method. The uniform dispersion of xGNPs in sPS matrix was confirmed by scanning electron microscopy. The effect of xGNPs on sPS crystallization behavior was investigated by wide angle X-ray diffraction and differential scanning calorimetry. It was found that the existence of xGNPs increased the crystallization ability of sPS and facilitated the formation of the β phase crystalline structure. By adding 10 wt.% of xGNPs, the increase in the onset degradation temperature of the xGNPs/sPS composite could reach 12°C. The AC electrical conductivity at 1000 Hz increased from 3.8 × 10-10S/m for neat sPS to 2.25 × 10-4S/m for xGNPs/sPS composite containing 2.93 vol.% of xGNPs. Moreover, the thermal conductivity of the xGNPs/sPS composite containing 8.26 vol.% has been significantly improved from 0.21 to 1.63 W/m·K when compared with that of pure sPS.

KW - AC electrical conductivity

KW - Crystallization behavior

KW - Thermal conductivity

KW - Thermal stability

KW - xGNPs/sPS composites

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U2 - 10.1016/j.polymertesting.2015.01.002

DO - 10.1016/j.polymertesting.2015.01.002

M3 - Journal article

SN - 0142-9418

VL - 42

SP - 45

EP - 53

JO - Polymer Testing

JF - Polymer Testing

ER -

Novel exfoliated graphite nanoplates/syndiotactic polystyrene composites prepared by solution-blending

Abstract

Keywords

ASJC Scopus subject areas

More information

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