Fracture resistance, thermal and electrical properties of epoxy composites containing aligned carbon nanotubes by low magnetic field

Chuanguo Ma; Hong Yuan Liu; Xusheng Du; Longtin Mach; Feng Xu; Yiu Wing Mai

doi:10.1016/j.compscitech.2015.04.007

Fracture resistance, thermal and electrical properties of epoxy composites containing aligned carbon nanotubes by low magnetic field

Chuanguo Ma, Hong Yuan Liu, Xusheng Du, Longtin Mach, Feng Xu, Yiu Wing Mai

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

115 Citations (Scopus)

Abstract

The alignment of carbon nanotubes (CNTs) with residual catalyst Ni particles in epoxy resin (EP) was achieved under a low magnetic field of 0.4. T. EP composites containing different loading of CNTs were prepared at 60. °C based on the rheology results of CNT/EP suspensions. The effects of CNT loading and magnetic field on the fracture toughness (K_IC), glass transition temperature (T_g) and electrical properties of the composites were studied. The obtained results showed significant enhancements in K_IC, independent of the orientation of the CNTs, compared to neat epoxy. The maximum increase (~51%) was achieved by composites with 3. wt.% aligned CNTs transverse to crack growth. Additionally, composites with magnetically aligned CNTs displayed anisotropy in K_IC. Compared to CNT/EP composites with no applied magnetic field, the K_IC increase was less effective at high CNT loading. Finally, toughening mechanisms, T_g and electrical conductivity results were discussed.

Original language	English
Pages (from-to)	126-135
Number of pages	10
Journal	Composites Science and Technology
Volume	114
DOIs	https://doi.org/10.1016/j.compscitech.2015.04.007
Publication status	Published - 9 Jun 2015
Externally published	Yes

Keywords

A. Carbon nanotubes
A. Polymer-matrix composites (PMCs)
B. Electrical properties
B. Fracture toughness
B. Thermal properties

ASJC Scopus subject areas

Ceramics and Composites
General Engineering

More information

10.1016/j.compscitech.2015.04.007

Cite this

@article{b3335fbd61b04b89b7b83f4f33fa2b58,

title = "Fracture resistance, thermal and electrical properties of epoxy composites containing aligned carbon nanotubes by low magnetic field",

abstract = "The alignment of carbon nanotubes (CNTs) with residual catalyst Ni particles in epoxy resin (EP) was achieved under a low magnetic field of 0.4. T. EP composites containing different loading of CNTs were prepared at 60. °C based on the rheology results of CNT/EP suspensions. The effects of CNT loading and magnetic field on the fracture toughness (KIC), glass transition temperature (Tg) and electrical properties of the composites were studied. The obtained results showed significant enhancements in KIC, independent of the orientation of the CNTs, compared to neat epoxy. The maximum increase (~51%) was achieved by composites with 3. wt.% aligned CNTs transverse to crack growth. Additionally, composites with magnetically aligned CNTs displayed anisotropy in KIC. Compared to CNT/EP composites with no applied magnetic field, the KIC increase was less effective at high CNT loading. Finally, toughening mechanisms, Tg and electrical conductivity results were discussed.",

keywords = "A. Carbon nanotubes, A. Polymer-matrix composites (PMCs), B. Electrical properties, B. Fracture toughness, B. Thermal properties",

author = "Chuanguo Ma and Liu, {Hong Yuan} and Xusheng Du and Longtin Mach and Feng Xu and Mai, {Yiu Wing}",

note = "Publisher Copyright: {\textcopyright} 2015 Elsevier Ltd.",

year = "2015",

month = jun,

day = "9",

doi = "10.1016/j.compscitech.2015.04.007",

language = "English",

volume = "114",

pages = "126--135",

journal = "Composites Science and Technology",

issn = "0266-3538",

publisher = "Elsevier BV",

}

TY - JOUR

T1 - Fracture resistance, thermal and electrical properties of epoxy composites containing aligned carbon nanotubes by low magnetic field

AU - Ma, Chuanguo

AU - Liu, Hong Yuan

AU - Du, Xusheng

AU - Mach, Longtin

AU - Xu, Feng

AU - Mai, Yiu Wing

PY - 2015/6/9

Y1 - 2015/6/9

N2 - The alignment of carbon nanotubes (CNTs) with residual catalyst Ni particles in epoxy resin (EP) was achieved under a low magnetic field of 0.4. T. EP composites containing different loading of CNTs were prepared at 60. °C based on the rheology results of CNT/EP suspensions. The effects of CNT loading and magnetic field on the fracture toughness (KIC), glass transition temperature (Tg) and electrical properties of the composites were studied. The obtained results showed significant enhancements in KIC, independent of the orientation of the CNTs, compared to neat epoxy. The maximum increase (~51%) was achieved by composites with 3. wt.% aligned CNTs transverse to crack growth. Additionally, composites with magnetically aligned CNTs displayed anisotropy in KIC. Compared to CNT/EP composites with no applied magnetic field, the KIC increase was less effective at high CNT loading. Finally, toughening mechanisms, Tg and electrical conductivity results were discussed.

AB - The alignment of carbon nanotubes (CNTs) with residual catalyst Ni particles in epoxy resin (EP) was achieved under a low magnetic field of 0.4. T. EP composites containing different loading of CNTs were prepared at 60. °C based on the rheology results of CNT/EP suspensions. The effects of CNT loading and magnetic field on the fracture toughness (KIC), glass transition temperature (Tg) and electrical properties of the composites were studied. The obtained results showed significant enhancements in KIC, independent of the orientation of the CNTs, compared to neat epoxy. The maximum increase (~51%) was achieved by composites with 3. wt.% aligned CNTs transverse to crack growth. Additionally, composites with magnetically aligned CNTs displayed anisotropy in KIC. Compared to CNT/EP composites with no applied magnetic field, the KIC increase was less effective at high CNT loading. Finally, toughening mechanisms, Tg and electrical conductivity results were discussed.

KW - A. Carbon nanotubes

KW - A. Polymer-matrix composites (PMCs)

KW - B. Electrical properties

KW - B. Fracture toughness

KW - B. Thermal properties

UR - http://www.scopus.com/inward/record.url?scp=84928233402&partnerID=8YFLogxK

U2 - 10.1016/j.compscitech.2015.04.007

DO - 10.1016/j.compscitech.2015.04.007

M3 - Journal article

AN - SCOPUS:84928233402

SN - 0266-3538

VL - 114

SP - 126

EP - 135

JO - Composites Science and Technology

JF - Composites Science and Technology

ER -

Fracture resistance, thermal and electrical properties of epoxy composites containing aligned carbon nanotubes by low magnetic field

Abstract

Keywords

ASJC Scopus subject areas

More information

Other files and links

Fingerprint

Cite this