Some factors influencing exfoliation and physical property enhancement in nanoclay epoxy resins based on diglycidyl ethers of bisphenol A and F

S.E. Ingram; I. Rhoney; J.J. Liggat; N.E. Hudson; R.A. Pethrick

doi:10.1002/app.25474

Some factors influencing exfoliation and physical property enhancement in nanoclay epoxy resins based on diglycidyl ethers of bisphenol A and F

S.E. Ingram, I. Rhoney, J.J. Liggat, N.E. Hudson, R.A. Pethrick

Pure And Applied Chemistry

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

16 Citations (Scopus)

Abstract

An investigation of the factors influencing the degree of exfoliation of an organically modified clay in a series of epoxy resins is reported. The use of sonication, choice of curing agent, effect of the moisture content of the clay, and the cure temperature were examined. The dispersion was characterized using a combination of rheological measurements, X-ray diffraction, and dynamic mechanical thermal analysis. Rheological analysis of the clay dispersion in the epoxy monomer indicated that at high clay loads Herschel-Bulkley type behavior is followed. Higher cure temperatures and higher levels of clay moisture were found to influence the extent of exfoliation. Improvements in physical properties were observed through the addition of nanocomposites. The DGEBA/DDM and DEGEBA/DDS exhibited 2 and 4°C increase, respectively, in Tg per wt % of added clay. DGEBF showed virtually no enhancement.

Original language	English
Pages (from-to)	5-19
Number of pages	14
Journal	Journal of Applied Polymer Science
Volume	106
Issue number	1
DOIs	https://doi.org/10.1002/app.25474
Publication status	Published - 5 Oct 2007

Keywords

epoxy
nanocomposites
montmorillonite clay
exfoliation
nanoclay epoxy resin

Access to Document

10.1002/app.25474

Cite this

@article{8ccb156b879f495d88cee6f0d89d41e2,

title = "Some factors influencing exfoliation and physical property enhancement in nanoclay epoxy resins based on diglycidyl ethers of bisphenol A and F",

abstract = "An investigation of the factors influencing the degree of exfoliation of an organically modified clay in a series of epoxy resins is reported. The use of sonication, choice of curing agent, effect of the moisture content of the clay, and the cure temperature were examined. The dispersion was characterized using a combination of rheological measurements, X-ray diffraction, and dynamic mechanical thermal analysis. Rheological analysis of the clay dispersion in the epoxy monomer indicated that at high clay loads Herschel-Bulkley type behavior is followed. Higher cure temperatures and higher levels of clay moisture were found to influence the extent of exfoliation. Improvements in physical properties were observed through the addition of nanocomposites. The DGEBA/DDM and DEGEBA/DDS exhibited 2 and 4°C increase, respectively, in Tg per wt % of added clay. DGEBF showed virtually no enhancement.",

keywords = "epoxy, nanocomposites, montmorillonite clay, exfoliation, nanoclay epoxy resin",

author = "S.E. Ingram and I. Rhoney and J.J. Liggat and N.E. Hudson and R.A. Pethrick",

year = "2007",

month = oct,

day = "5",

doi = "10.1002/app.25474",

language = "English",

volume = "106",

pages = "5--19",

journal = "Journal of Applied Polymer Science",

issn = "0021-8995",

number = "1",

}

TY - JOUR

T1 - Some factors influencing exfoliation and physical property enhancement in nanoclay epoxy resins based on diglycidyl ethers of bisphenol A and F

AU - Ingram, S.E.

AU - Rhoney, I.

AU - Liggat, J.J.

AU - Hudson, N.E.

AU - Pethrick, R.A.

PY - 2007/10/5

Y1 - 2007/10/5

N2 - An investigation of the factors influencing the degree of exfoliation of an organically modified clay in a series of epoxy resins is reported. The use of sonication, choice of curing agent, effect of the moisture content of the clay, and the cure temperature were examined. The dispersion was characterized using a combination of rheological measurements, X-ray diffraction, and dynamic mechanical thermal analysis. Rheological analysis of the clay dispersion in the epoxy monomer indicated that at high clay loads Herschel-Bulkley type behavior is followed. Higher cure temperatures and higher levels of clay moisture were found to influence the extent of exfoliation. Improvements in physical properties were observed through the addition of nanocomposites. The DGEBA/DDM and DEGEBA/DDS exhibited 2 and 4°C increase, respectively, in Tg per wt % of added clay. DGEBF showed virtually no enhancement.

AB - An investigation of the factors influencing the degree of exfoliation of an organically modified clay in a series of epoxy resins is reported. The use of sonication, choice of curing agent, effect of the moisture content of the clay, and the cure temperature were examined. The dispersion was characterized using a combination of rheological measurements, X-ray diffraction, and dynamic mechanical thermal analysis. Rheological analysis of the clay dispersion in the epoxy monomer indicated that at high clay loads Herschel-Bulkley type behavior is followed. Higher cure temperatures and higher levels of clay moisture were found to influence the extent of exfoliation. Improvements in physical properties were observed through the addition of nanocomposites. The DGEBA/DDM and DEGEBA/DDS exhibited 2 and 4°C increase, respectively, in Tg per wt % of added clay. DGEBF showed virtually no enhancement.

KW - epoxy

KW - nanocomposites

KW - montmorillonite clay

KW - exfoliation

KW - nanoclay epoxy resin

UR - http://dx.doi.org/10.1002/app.25474

U2 - 10.1002/app.25474

DO - 10.1002/app.25474

M3 - Article

SN - 0021-8995

VL - 106

SP - 5

EP - 19

JO - Journal of Applied Polymer Science

JF - Journal of Applied Polymer Science

IS - 1

ER -

Some factors influencing exfoliation and physical property enhancement in nanoclay epoxy resins based on diglycidyl ethers of bisphenol A and F

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this