Strength and fracture toughness of nano and micron-silica particles bidispersed epoxy composites: evaluated by fragility parameter

被引：30

作者：

Kwon, Soon-Chul ^{[1
]}

Adachi, Tadaharu ^{[1
]}

机构：

[1] Tokyo Inst Technol, Dept Engn Sci & Mech, Meguro Ku, Tokyo 1528552, Japan

来源：

JOURNAL OF MATERIALS SCIENCE | 2007年 / 42卷 / 14期

关键词：

D O I：

10.1007/s10853-006-1025-4

中图分类号：

T [工业技术];

学科分类号：

08 [工学];

摘要：

In this study, we discuss the composition effect of 240 nm and 1.56 mu m-silica particles on strength and fracture toughness by examining two parameters, fragility and glass transition temperature, that were derived from the thermo-viscoelasticity measurements. Experimental results showed that the composites had a lower fragility with higher strength and fracture toughness as the content of nanoparticles was increased regardless of glass transition temperature. The improvement in mechanical properties from adding nanoparticles was definitely explained by the fragility represented the heterogeneity in polymer matrix, and this was related to the interaction between particles and matrix. The fragility was found to be an effective parameter for evaluating strength and fracture toughness of epoxy composite containing a bidispersion of nano and micron-silica particles.

引用

页码：5516 / 5523

页数：8

共 29 条

[1]

Fracture toughness of silica particulate-filled epoxy composite [J].