Studies on cure behavior and rheological properties of tetrafunctional epoxy/biodegradable MAP blends

Soo Jin Park; Seung Hak Kim; Jae Rock Lee; Bong Sup Kim; Sung Kwon Hong

Studies on cure behavior and rheological properties of tetrafunctional epoxy/biodegradable MAP blends

Soo Jin Park
, Seung Hak Kim
, Jae Rock Lee
, Bong Sup Kim
, Sung Kwon Hong

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

Abstract

In this work, biodegradable modified aliphatic polyester (MAP) in tetrafunctional epoxy (4EP) resin was investigated in terms of cure kinetics, thermal stabilities, rheological properties, and mechanical interfacial properties. DSC results of the blends show that the cure activation energies (E_a) were increased in 10 wt% of MAP compared with neat 4EP, due to the increasing intermolecular interaction between 4EP and MAP. The decomposed activation energies (E_t) derived from Coats-Redfern method, were increased within the 10-30 wt% composition range of MAP contents, resulting from increasing the cross-linking density of the blend system. Rheological properties of the blend system were investigated under isothermal condition using a rheometer. Cross-linking activation energies (E_c) were determined from the Arrhenius equation based on gel time and curing temperature. As a result, the E_c showed a similar behavior with E_a. The fracture toughness (K_IC) of the mechanical interfacial properties was discussed in semi-IPN behaviors of the casting specimen.

Original language	English
Pages (from-to)	767-777
Number of pages	11
Journal	Polymer (Korea)
Volume	26
Issue number	6
Publication status	Published - 1 Nov 2002
Externally published	Yes

Keywords

Cure kinetics
Mechanical interfacial properties
Rheological properties
Tetrafunctional epoxy resin
Thermal stabilities

Cite this

@article{e08e887818104b5185bd2d9734ae6b6f,

title = "Studies on cure behavior and rheological properties of tetrafunctional epoxy/biodegradable MAP blends",

abstract = "In this work, biodegradable modified aliphatic polyester (MAP) in tetrafunctional epoxy (4EP) resin was investigated in terms of cure kinetics, thermal stabilities, rheological properties, and mechanical interfacial properties. DSC results of the blends show that the cure activation energies (Ea) were increased in 10 wt\% of MAP compared with neat 4EP, due to the increasing intermolecular interaction between 4EP and MAP. The decomposed activation energies (Et) derived from Coats-Redfern method, were increased within the 10-30 wt\% composition range of MAP contents, resulting from increasing the cross-linking density of the blend system. Rheological properties of the blend system were investigated under isothermal condition using a rheometer. Cross-linking activation energies (Ec) were determined from the Arrhenius equation based on gel time and curing temperature. As a result, the Ec showed a similar behavior with Ea. The fracture toughness (KIC) of the mechanical interfacial properties was discussed in semi-IPN behaviors of the casting specimen.",

keywords = "Cure kinetics, Mechanical interfacial properties, Rheological properties, Tetrafunctional epoxy resin, Thermal stabilities",

author = "Park, \{Soo Jin\} and Kim, \{Seung Hak\} and Lee, \{Jae Rock\} and Kim, \{Bong Sup\} and Hong, \{Sung Kwon\}",

year = "2002",

month = nov,

day = "1",

language = "English",

volume = "26",

pages = "767--777",

journal = "Polymer (Korea)",

issn = "0379-153X",

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TY - JOUR

T1 - Studies on cure behavior and rheological properties of tetrafunctional epoxy/biodegradable MAP blends

AU - Park, Soo Jin

AU - Kim, Seung Hak

AU - Lee, Jae Rock

AU - Kim, Bong Sup

AU - Hong, Sung Kwon

PY - 2002/11/1

Y1 - 2002/11/1

N2 - In this work, biodegradable modified aliphatic polyester (MAP) in tetrafunctional epoxy (4EP) resin was investigated in terms of cure kinetics, thermal stabilities, rheological properties, and mechanical interfacial properties. DSC results of the blends show that the cure activation energies (Ea) were increased in 10 wt% of MAP compared with neat 4EP, due to the increasing intermolecular interaction between 4EP and MAP. The decomposed activation energies (Et) derived from Coats-Redfern method, were increased within the 10-30 wt% composition range of MAP contents, resulting from increasing the cross-linking density of the blend system. Rheological properties of the blend system were investigated under isothermal condition using a rheometer. Cross-linking activation energies (Ec) were determined from the Arrhenius equation based on gel time and curing temperature. As a result, the Ec showed a similar behavior with Ea. The fracture toughness (KIC) of the mechanical interfacial properties was discussed in semi-IPN behaviors of the casting specimen.

AB - In this work, biodegradable modified aliphatic polyester (MAP) in tetrafunctional epoxy (4EP) resin was investigated in terms of cure kinetics, thermal stabilities, rheological properties, and mechanical interfacial properties. DSC results of the blends show that the cure activation energies (Ea) were increased in 10 wt% of MAP compared with neat 4EP, due to the increasing intermolecular interaction between 4EP and MAP. The decomposed activation energies (Et) derived from Coats-Redfern method, were increased within the 10-30 wt% composition range of MAP contents, resulting from increasing the cross-linking density of the blend system. Rheological properties of the blend system were investigated under isothermal condition using a rheometer. Cross-linking activation energies (Ec) were determined from the Arrhenius equation based on gel time and curing temperature. As a result, the Ec showed a similar behavior with Ea. The fracture toughness (KIC) of the mechanical interfacial properties was discussed in semi-IPN behaviors of the casting specimen.

KW - Cure kinetics

KW - Mechanical interfacial properties

KW - Rheological properties

KW - Tetrafunctional epoxy resin

KW - Thermal stabilities

UR - https://www.scopus.com/pages/publications/24344495344

M3 - Article

AN - SCOPUS:24344495344

SN - 0379-153X

VL - 26

SP - 767

EP - 777

JO - Polymer (Korea)

JF - Polymer (Korea)

IS - 6

ER -

Studies on cure behavior and rheological properties of tetrafunctional epoxy/biodegradable MAP blends

Abstract

Keywords

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