Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Strength characteristics, structure and wear resistance of ptfe-commercial carbon composites

Strength characteristics, structure and wear resistance of ptfe-commercial carbon composites The present work is devoted to investigations of the structure, mechanical properties, and wear resistance of composites based on polytetrafluoroethylene filled by 0.3–20.0% of commercial carbon. The methods used were mechanical testing, X-ray phase analysis, scanning calorimetry, scanning electron microscopy, and triboengineering tests. The wear resistance of low-filled PTFE-based composites containing 1–5% of ultradispersed commercial carbon was found to increase sharply, by up to 500–600 times, whereas the main strength characteristics of these composites, including relative elongation at rupture and tensile strength, remained at levels close to that of pure polytetrafluoroethylene (PTFE). This effect is attributed to the active cross-linking role of ultradispersed carbon particles, which promote the formation of a transient supermolecular structure in the low-filled composites; this structure is a combination of the unfilled PTFE structure and a spherulite-like supermolecular structure. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Friction and Wear Springer Journals

Strength characteristics, structure and wear resistance of ptfe-commercial carbon composites

Loading next page...
 
/lp/springer-journals/strength-characteristics-structure-and-wear-resistance-of-ptfe-Vcbsoa8buz

References (21)

Publisher
Springer Journals
Copyright
Copyright © 2008 by Allerton Press, Inc.
Subject
Physics; Classical and Continuum Physics
ISSN
1068-3666
eISSN
1934-9386
DOI
10.3103/S1068366608020074
Publisher site
See Article on Publisher Site

Abstract

The present work is devoted to investigations of the structure, mechanical properties, and wear resistance of composites based on polytetrafluoroethylene filled by 0.3–20.0% of commercial carbon. The methods used were mechanical testing, X-ray phase analysis, scanning calorimetry, scanning electron microscopy, and triboengineering tests. The wear resistance of low-filled PTFE-based composites containing 1–5% of ultradispersed commercial carbon was found to increase sharply, by up to 500–600 times, whereas the main strength characteristics of these composites, including relative elongation at rupture and tensile strength, remained at levels close to that of pure polytetrafluoroethylene (PTFE). This effect is attributed to the active cross-linking role of ultradispersed carbon particles, which promote the formation of a transient supermolecular structure in the low-filled composites; this structure is a combination of the unfilled PTFE structure and a spherulite-like supermolecular structure.

Journal

Journal of Friction and WearSpringer Journals

Published: May 21, 2008

There are no references for this article.