Fabrication, Structure and Properties of Epoxy/Metal Nanocomposites

被引：52
|
作者：
Ma, Jun [1 ,2 ]
La, Ly Truc Bao [2 ]
Zaman, Izzuddin [2 ]
Meng, Qingshi [2 ]
Luong, Lee [2 ]
Ogilvie, Denise [3 ]
Kuan, Hsu-Chiang [1 ]
机构：
[1] Far E Univ, Dept Energy Applicat Engn, Tainan 744, Taiwan
[2] Univ S Australia, Sch Adv Mfg & Mech Engn, Adelaide, SA 5095, Australia
[3] Univ S Australia, Sch Hlth Sci, Adelaide, SA 5095, Australia
来源：
MACROMOLECULAR MATERIALS AND ENGINEERING | 2011年 / 296卷 / 05期
基金：
澳大利亚研究理事会;
关键词：
interfaces; nanocomposites; structure-property relations; toughening; LAYERED DOUBLE HYDROXIDES; MECHANICAL-PROPERTIES; GOLD NANOPARTICLES; FRACTURE-TOUGHNESS; FILLED EPOXY; POLYMER; REINFORCEMENT; DEGRADATION; MORPHOLOGY; ELASTOMER;
D O I：
10.1002/mame.201000409
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Gd2O3 nanoparticles surface-modified with IPDI were compounded with epoxy. IPDI provided an anchor into the porous Gd2O3 surface and a bridge into the matrix, thus creating strong bonds between matrix and Gd2O3. 1.7 vol.-% Gd2O3 increased the Young's modulus of epoxy by 16-19%; the surface-modified Gd2O3 nanoparticles improved the critical strain energy release rate by 64.3% as compared to 26.4% produced by the unmodified nanoparticles. The X-ray shielding efficiency of neat epoxy was enhanced by 300-360%, independent of the interface modification. Interface debonding consumes energy and leads to crack pinning and matrix shear banding; most fracture energy is consumed by matrix shear banding as shown by the large number of ridges on the fracture surface.
引用
收藏
页码：465 / 474
页数：10
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