Adhesion strength improvement of epoxy resin reinforced with nanoelastomeric copolymer

被引：36
|
作者：
Khoee, Sepideh [1 ]
Hassani, Narges [1 ]
机构：
[1] Univ Tehran, Sch Sci, Dept Chem, Polymer Lab, Tehran, Iran
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2010年 / 527卷 / 24-25期
关键词：
Polymer-polymer nanocomposites; Epoxy resin adhesive; Elastomeric nanoparticles; Failure mode; FRACTURE-TOUGHNESS;
D O I：
10.1016/j.msea.2010.07.013
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Nano-sized copoly(styrene-butylacrylate-ethylenglycoldimethacrylate) (St-BA-EGDMA) particles were added at different contents to improve the toughness of diglycidyl ether of bisphenol A epoxy resin (ER) using piperidine as a curing agent. Transmission electron microscopy (TEM) proved that nanoelastomer was finely dispersed in the epoxy adhesive. To compare the adhesion strength of different adherents utilizing both modified and unmodified epoxy adhesive, the lap shear strength (LSS) test was measured as a function of elastomeric nanoparticles (ENP) amount. Scanning electron microscopy (SEM) and FTIR were used to investigate the interface morphology and chemical composition of adherent and epoxy adhesive. The result indicated that the adhesion strength was increased dramatically by addition of nanoparticles compared with that of pure epoxy adhesive. The highest adhesion strength was obtained with 20 wt% elastomeric nanoparticles. It was found that reinforcement with nanoparticles improved the fracture toughness. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：6562 / 6567
页数：6
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