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

被引：28

作者：

Jin, Fan-Long ^{[2
]}

Park, Soo-Jin ^{[1
]}

机构：

[1] Inha Univ, Dept Chem, Inchon 402751, South Korea

[2] Jilin Inst Chem Technol, Dept Chem Engn, Jilin 132022, Peoples R China

来源：

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2008年 / 14卷 / 05期

关键词：

Epoxy resins; Polyester; Thermal latent initiator; Thermal stabilities; Fracture toughness;

D O I：

10.1016/j.jiec.2008.04.003

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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.

引用

页码：564 / 567

页数：4

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