Effects of a silane treatment on the mechanical interfacial properties of montmorillonite/epoxy nanocomposites

Soo Jin Park; Byung Joo Kim; Dong Il Seo; Kyong Yop Rhee; Yi Yeol Lyu

doi:10.1016/j.msea.2009.07.023

Effects of a silane treatment on the mechanical interfacial properties of montmorillonite/epoxy nanocomposites

Soo Jin Park
, Byung Joo Kim
, Dong Il Seo
, Kyong Yop Rhee
, Yi Yeol Lyu

Inha University
Uni-tech Co. Ltd.
Kyung Hee University
Samsung Advanced Institute of Technology

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

86 Citations (Scopus)

Abstract

In this study, montmorillonite (MMT) was modified using silane coupling agents (SCAs) to improve its interfacial adhesion to an epoxy matrix. The effects of the SCAs on the mechanical interfacial properties of MMT/epoxy nanocomposites were investigated by FT-IR, XRD, and TEM and with reference to the surface energetics. In the results, the SCAs led to an improvement of the organic functional groups, including the silanol and siloxane groups, on the MMT surfaces. This surface modification also led to an enhancement of the specific component of the surface free energy of the MMT. Regarding the mechanical interfacial properties, the critical stress intensity factor (K_IC) and interlaminar shear stress (ILSS) values for all of the treated MMT/epoxy composites were enhanced; those of the γ-amino propyl triethoxy silane (APS)-treated MMT/epoxy composite showed the highest values of 3.55 MPa m^1/2 and 13.8 MPa, respectively.

Original language	English
Pages (from-to)	74-78
Number of pages	5
Journal	Materials Science and Engineering: A
Volume	526
Issue number	1-2
DOIs	https://doi.org/10.1016/j.msea.2009.07.023
Publication status	Published - 25 Nov 2009
Externally published	Yes

Keywords

MMT
Mechanical interfacial properties
Nanocomposites
Silane treatment

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10.1016/j.msea.2009.07.023

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title = "Effects of a silane treatment on the mechanical interfacial properties of montmorillonite/epoxy nanocomposites",

abstract = "In this study, montmorillonite (MMT) was modified using silane coupling agents (SCAs) to improve its interfacial adhesion to an epoxy matrix. The effects of the SCAs on the mechanical interfacial properties of MMT/epoxy nanocomposites were investigated by FT-IR, XRD, and TEM and with reference to the surface energetics. In the results, the SCAs led to an improvement of the organic functional groups, including the silanol and siloxane groups, on the MMT surfaces. This surface modification also led to an enhancement of the specific component of the surface free energy of the MMT. Regarding the mechanical interfacial properties, the critical stress intensity factor (KIC) and interlaminar shear stress (ILSS) values for all of the treated MMT/epoxy composites were enhanced; those of the γ-amino propyl triethoxy silane (APS)-treated MMT/epoxy composite showed the highest values of 3.55 MPa m1/2 and 13.8 MPa, respectively.",

keywords = "MMT, Mechanical interfacial properties, Nanocomposites, Silane treatment",

author = "Park, \{Soo Jin\} and Kim, \{Byung Joo\} and Seo, \{Dong Il\} and Rhee, \{Kyong Yop\} and Lyu, \{Yi Yeol\}",

year = "2009",

month = nov,

day = "25",

doi = "10.1016/j.msea.2009.07.023",

language = "English",

volume = "526",

pages = "74--78",

journal = "Materials Science and Engineering: A",

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T1 - Effects of a silane treatment on the mechanical interfacial properties of montmorillonite/epoxy nanocomposites

AU - Park, Soo Jin

AU - Kim, Byung Joo

AU - Seo, Dong Il

AU - Rhee, Kyong Yop

AU - Lyu, Yi Yeol

PY - 2009/11/25

Y1 - 2009/11/25

N2 - In this study, montmorillonite (MMT) was modified using silane coupling agents (SCAs) to improve its interfacial adhesion to an epoxy matrix. The effects of the SCAs on the mechanical interfacial properties of MMT/epoxy nanocomposites were investigated by FT-IR, XRD, and TEM and with reference to the surface energetics. In the results, the SCAs led to an improvement of the organic functional groups, including the silanol and siloxane groups, on the MMT surfaces. This surface modification also led to an enhancement of the specific component of the surface free energy of the MMT. Regarding the mechanical interfacial properties, the critical stress intensity factor (KIC) and interlaminar shear stress (ILSS) values for all of the treated MMT/epoxy composites were enhanced; those of the γ-amino propyl triethoxy silane (APS)-treated MMT/epoxy composite showed the highest values of 3.55 MPa m1/2 and 13.8 MPa, respectively.

AB - In this study, montmorillonite (MMT) was modified using silane coupling agents (SCAs) to improve its interfacial adhesion to an epoxy matrix. The effects of the SCAs on the mechanical interfacial properties of MMT/epoxy nanocomposites were investigated by FT-IR, XRD, and TEM and with reference to the surface energetics. In the results, the SCAs led to an improvement of the organic functional groups, including the silanol and siloxane groups, on the MMT surfaces. This surface modification also led to an enhancement of the specific component of the surface free energy of the MMT. Regarding the mechanical interfacial properties, the critical stress intensity factor (KIC) and interlaminar shear stress (ILSS) values for all of the treated MMT/epoxy composites were enhanced; those of the γ-amino propyl triethoxy silane (APS)-treated MMT/epoxy composite showed the highest values of 3.55 MPa m1/2 and 13.8 MPa, respectively.

KW - MMT

KW - Mechanical interfacial properties

KW - Nanocomposites

KW - Silane treatment

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U2 - 10.1016/j.msea.2009.07.023

DO - 10.1016/j.msea.2009.07.023

M3 - Article

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SN - 0921-5093

VL - 526

SP - 74

EP - 78

JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

IS - 1-2

ER -

Effects of a silane treatment on the mechanical interfacial properties of montmorillonite/epoxy nanocomposites

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Keywords

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