Hostname: page-component-78c5997874-dh8gc Total loading time: 0 Render date: 2024-11-10T16:39:04.585Z Has data issue: false hasContentIssue false
  • English
  • Français

Toughening Epoxy Adhesives to Meet Today's Challenges

Published online by Cambridge University Press:  31 January 2011

A. J. Kinloch
Get access

Abstract

There are many advantages that polymeric adhesives can offer compared with the more traditional methods of structural joining such as bolting, brazing, welding, and mechanical fastening, and epoxy adhesives represent the most common type of structural adhesive. When polymerized, epoxy adhesives are amorphous and highly cross-linked materials, and this microstructure results in many useful properties for structural engineering applications, such as a high modulus and failure strength, low creep, and, by careful formulation, good performance at elevated temperatures. However, the structure of such thermosetting adhesives also generally leads to one highly undesirable property: they are relatively brittle materials, with poor resistance to crack initiation and growth. Nevertheless, the incorporation of a second phase of dispersed rubbery particles into the epoxy polymer can greatly increase their toughness without significantly impairing their other desirable engineering properties. Thus, rubber-toughened epoxy adhesives can be used, for example, in applications where very high impact resistance is required for the bonded joint.

Keywords

epoxy adhesivesfracturemicrostructurepolymersstructural adhesivestoughening
Type
Research Article
Information
MRS Bulletin , Volume 28 , Issue 6: Materials Science of Adhesives: How to Bond Things Together , June 2003 , pp. 445 - 448
Copyright
Copyright © Materials Research Society 2003

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1.Kinloch, A.J., Adhesion and Adhesives: Science and Technology (Chapman & Hall, London, 1987).CrossRefGoogle Scholar
2.Kinloch, A.J., Proc. Inst. Mech. Engrs. 211 (Part G) (1997) p. 307.CrossRefGoogle Scholar
3.Skeist, I., ed., Handbook of Adhesives (Van Nostrand Reinhold, New York, 1989).Google Scholar
4.Rowe, E.H., Siebert, A.R., and Drake, R.S., Mod. Plast. 49 (1970) p. 110.Google Scholar
5.Drake, R.S. and Siebert, A.R., SAMPE Quart. 6 (4) (1975) p. 11.Google Scholar
6.Kinloch, A.J., Shaw, S.J., Tod, D.A., and Hunston, D.L., Polymer 24 (1983) p. 1341.CrossRefGoogle Scholar
7.Kinloch, A.J., Shaw, S.J., and Hunston, D.L., Polymer 24 (1983) p. 1355.CrossRefGoogle Scholar
8.Yee, A.F. and Pearson, R.A., J. Mater. Sci. 21 (1986) p. 2462.CrossRefGoogle Scholar
9.Goodier, J.N., Trans. ASME 55 (1933) p. 39.CrossRefGoogle Scholar
10.Broutman, L.J. and Panizza, G., Int. J. Polym. Mater. 1 (1971) p. 95.CrossRefGoogle Scholar
11.Huang, Y. and Kinloch, A.J., J. Mater. Sci. 27 (1992) p. 2753.CrossRefGoogle Scholar
12.Guild, F.J. and Kinloch, A.J., J. Mater. Sci. 30 (1995) p. 1689.CrossRefGoogle Scholar
13.Huang, Y. and Kinloch, A.J., J. Mater. Sci. Lett. 11 (1992) p. 484.CrossRefGoogle Scholar
14.Pearson, R.A. and Yee, Y.F., Polymeric Mater. Sci. Eng. Preprints (American Chemical Society, Washington, DC, 1983) p. 316.Google Scholar
15.Finch, C.A., Hashemi, S., and Kinloch, A.J., Polym. Commun. 28 (1987) p. 322.CrossRefGoogle Scholar
16.Mulhaupt, R. and Buchholz, U., in Toughened Plastics II, edited by Riew, C.K. and Kinloch, A.J. (American Chemical Society, Washington, DC, 1996) p. 75.CrossRefGoogle Scholar
17.Blackman, B.R.K., Kinloch, A.J., Taylor, A.C., and Wang, Y., J. Mater. Sci. 35 (2000) p. 1867.CrossRefGoogle Scholar
18.Kinloch, A.J. and Guild, F.J., in Toughened Plastics II, edited by Riew, C.K. and Kinloch, A.J. (American Chemical Society, Washington, DC, 1996) p. 1.Google Scholar