Mechanical characterization of a high elongation and high toughness epoxy adhesive

被引：43

作者：

Saldanha, D. F. S. ^{[1
,2
]}

Canto, C. ^{[1
,2
]}

da Silva, L. F. M. ^{[1
]}

Carbas, R. J. C. ^{[1
,2
]}

Chaves, F. J. P. ^{[1
,2
]}

Nomura, K. ^{[3
]}

Ueda, T. ^{[3
]}

机构：

[1] Univ Porto, Fac Engn, Dept Engn Mecan, P-4200465 Oporto, Portugal

[2] Inst Engn Mecan IDMEC Polo FEUP, P-4200465 Oporto, Portugal

[3] Nagase Chemtex, Nishi Ku, Osaka 5508668, Japan

来源：

INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES | 2013年 / 47卷

关键词：

Epoxides; Novel adhesive; Mechanical properties of adhesives; High toughness adhesive; BONDED JOINTS; FRACTURE-TOUGHNESS; MODE; BEHAVIOR; RUBBER;

D O I：

10.1016/j.ijadhadh.2013.08.001

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

In this paper, a new epoxy adhesive has been mechanically characterized. The adhesive combines the properties of an epoxy adhesive and typical polyurethane (PU) adhesive, such as high elongation and high toughness. Experimental tests were performed to measure the tensile properties, shear properties, thermal properties and fracture properties. The tensile test shows high tensile strength and high elongation. The single lap joint (SLJ) test shows that the failure load is proportional to the overlap length for hard steel adherends. For the SLJs with mild steel adherends, the failure occurred due to adherend yielding. Impact tests were conducted using SLJ specimens and the results are consistent with the SLJ tested under static conditions. The Tg was obtained using a Dynamic Mechanical Analysis (DMA) type of test. The toughness in mode I was determined using the Double Cantilever Beam (DCB) test and the toughness in mode II using End Notched Flexure (ENF) test. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：91 / 98

页数：8

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