Hostname: page-component-cd9895bd7-dzt6s Total loading time: 0 Render date: 2024-12-27T01:30:59.838Z Has data issue: false hasContentIssue false
  • English
  • Français

Scratch Damage and Recovery of Controlled Epoxy Networks

Published online by Cambridge University Press:  01 February 2011

Hamed Lakrout ,
Aaron M. Forster ,
Lipiin Sung ,
Chris A. Michaels  and
Deborah Wang
Hamed Lakrout
Affiliation:
[email protected], Dow Chemical, New Products, Midland, Michigan, United States
Aaron M. Forster
Affiliation:
[email protected], NIST, Building & Fire Research Laboratory, Gaithersburg, Maryland, United States
Lipiin Sung
Affiliation:
[email protected], NIST, Building & Fire Research Laboratory, Gaithersburg, Maryland, United States
Chris A. Michaels
Affiliation:
[email protected], NIST, Chemical Science and Technology Laboratory, Gaithersburg, Maryland, United States
Deborah Wang
Affiliation:
[email protected], NIST, Building & Fire Research Laboratory, Gaithersburg, Maryland, United States
Get access

Abstract

Surface scratches in a series of controlled epoxy networks (CEN) were measured using a combination of instrumented indentation protocols and laser scanning confocal microscopy. Identical epoxy chemistry with increasing molecular weight between crosslinks provided different viscoelastic relaxation behaviors with the same modulus at ambient conditions. The glass transition temperatures (Tg)ranged between 70°C and 117°C. The high Tg CEN exhibited the lowest penetration depth and the highest elastic recovery. The results are analyzed with respect to the macroscale bulk properties and underlying molecular architecture of the CEN materials.

Keywords

tribologyviscoelasticitypolymer
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1269: Symposium FF – Polymer Materials and Membranes for Energy Devices , 2010 , 1269-FF05-13
Copyright
Copyright © Materials Research Society 2010

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

REFERENCES

Bertrand-Lambotte, P., Loubet, J.L., Verpy, C., Pavan, S., Thin Solid Films, 420–421, 281 (2002).Google Scholar
Bhushan, B., “Principles and Applications of Tribology”, Wiley & Sons, New York (1999).Google Scholar
Oliver, W.C., Pharr, G.M., J. Mater. Res., 7, 1564 (1992).Google Scholar