Fracture toughness of difunctional epoxy resin/thermally latent initiator system modified with polyesters

Fan Long Jin; Soo Jin Park

doi:10.1016/j.jiec.2008.04.003

Fracture toughness of difunctional epoxy resin/thermally latent initiator system modified with polyesters

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

Abstract

Aromatic polyester was used as a modifier to improve the toughness of diglycidylether of bisphenol A (DGEBA)/thermally latent initiator system. N-Benzylquinoxalinium hexafluoroantimonate (BQH) was used as a thermally latent initiator for thermal curing, and the content of polyester was varied from 2.5 to 10 wt%. The thermal latent behaviors, thermal properties, and mechanical interfacial properties of DGEBA/ polyester blends were investigated with several techniques. It was found that the BQH as a latent initiator showed the activity at a comparably narrow temperature range in the present study. The K _IC of the DGEBA/polyester blends was higher than that of the neat epoxy system and exhibited a maximum value at 5 wt% polyester. The scanning electron microscope (SEM) results showed rough and plastic deformation morphologies in the DGEBA/polyester blends.

Original language	English
Pages (from-to)	564-567
Number of pages	4
Journal	Journal of Industrial and Engineering Chemistry
Volume	14
Issue number	5
DOIs	https://doi.org/10.1016/j.jiec.2008.04.003
Publication status	Published - 1 Jan 2008
Externally published	Yes

Keywords

Epoxy resins
Fracture toughness
Polyester
Thermal latent initiator
Thermal stabilities

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10.1016/j.jiec.2008.04.003

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title = "Fracture toughness of difunctional epoxy resin/thermally latent initiator system modified with polyesters",

abstract = "Aromatic polyester was used as a modifier to improve the toughness of diglycidylether of bisphenol A (DGEBA)/thermally latent initiator system. N-Benzylquinoxalinium hexafluoroantimonate (BQH) was used as a thermally latent initiator for thermal curing, and the content of polyester was varied from 2.5 to 10 wt\%. The thermal latent behaviors, thermal properties, and mechanical interfacial properties of DGEBA/ polyester blends were investigated with several techniques. It was found that the BQH as a latent initiator showed the activity at a comparably narrow temperature range in the present study. The K IC of the DGEBA/polyester blends was higher than that of the neat epoxy system and exhibited a maximum value at 5 wt\% polyester. The scanning electron microscope (SEM) results showed rough and plastic deformation morphologies in the DGEBA/polyester blends.",

keywords = "Epoxy resins, Fracture toughness, Polyester, Thermal latent initiator, Thermal stabilities",

author = "Jin, \{Fan Long\} and Park, \{Soo Jin\}",

year = "2008",

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doi = "10.1016/j.jiec.2008.04.003",

language = "English",

volume = "14",

pages = "564--567",

journal = "Journal of Industrial and Engineering Chemistry",

issn = "1226-086X",

number = "5",

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TY - JOUR

T1 - Fracture toughness of difunctional epoxy resin/thermally latent initiator system modified with polyesters

AU - Jin, Fan Long

AU - Park, Soo Jin

PY - 2008/1/1

Y1 - 2008/1/1

N2 - Aromatic polyester was used as a modifier to improve the toughness of diglycidylether of bisphenol A (DGEBA)/thermally latent initiator system. N-Benzylquinoxalinium hexafluoroantimonate (BQH) was used as a thermally latent initiator for thermal curing, and the content of polyester was varied from 2.5 to 10 wt%. The thermal latent behaviors, thermal properties, and mechanical interfacial properties of DGEBA/ polyester blends were investigated with several techniques. It was found that the BQH as a latent initiator showed the activity at a comparably narrow temperature range in the present study. The K IC of the DGEBA/polyester blends was higher than that of the neat epoxy system and exhibited a maximum value at 5 wt% polyester. The scanning electron microscope (SEM) results showed rough and plastic deformation morphologies in the DGEBA/polyester blends.

AB - Aromatic polyester was used as a modifier to improve the toughness of diglycidylether of bisphenol A (DGEBA)/thermally latent initiator system. N-Benzylquinoxalinium hexafluoroantimonate (BQH) was used as a thermally latent initiator for thermal curing, and the content of polyester was varied from 2.5 to 10 wt%. The thermal latent behaviors, thermal properties, and mechanical interfacial properties of DGEBA/ polyester blends were investigated with several techniques. It was found that the BQH as a latent initiator showed the activity at a comparably narrow temperature range in the present study. The K IC of the DGEBA/polyester blends was higher than that of the neat epoxy system and exhibited a maximum value at 5 wt% polyester. The scanning electron microscope (SEM) results showed rough and plastic deformation morphologies in the DGEBA/polyester blends.

KW - Epoxy resins

KW - Fracture toughness

KW - Polyester

KW - Thermal latent initiator

KW - Thermal stabilities

UR - https://www.scopus.com/pages/publications/69049091373

U2 - 10.1016/j.jiec.2008.04.003

DO - 10.1016/j.jiec.2008.04.003

M3 - Article

AN - SCOPUS:69049091373

SN - 1226-086X

VL - 14

SP - 564

EP - 567

JO - Journal of Industrial and Engineering Chemistry

JF - Journal of Industrial and Engineering Chemistry

IS - 5

ER -

Fracture toughness of difunctional epoxy resin/thermally latent initiator system modified with polyesters

Abstract

Keywords

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