Enhanced electrical properties of graphite/ABS composites prepared via supercritical CO2 processing

Enhanced electrical properties of graphite/ABS composites prepared via supercritical CO2 processing Highly conductive graphite/acrylonitrile–butadiene–styrene copolymer (ABS) composites were prepared via foaming with supercritical carbon dioxide (scCO2), followed by de-foaming with an open mixing mill. This processing technique decreased the direct current resistivity of the composites by about 1 order of magnitude. The alternating current (AC) resistivity results demonstrated that an insulator-semiconductor transition occurred upon increasing the graphite content. In analyzing the AC impedance, it was shown that the response characteristics changed from capacitive to resistive at significantly lower graphite loading levels for composites processed with scCO2. The dispersion of graphite in the copolymer matrix was characterized by scanning electron microscopy (SEM), rheometry and dynamic mechanical analysis. SEM of graphite/ABS composites revealed that the graphite was very well-dispersed. The sample treated with scCO2 processing showed higher storage modulus and complex viscosity than those processed conventionally. Additionally, the T g was increased by 2–3 °C after the scCO2 processing treatment. This approach to composites processing with scCO2 represents an attractive method for preparing electrically conductive composites with well-dispersed fillers. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Polymer Bulletin Springer Journals

Enhanced electrical properties of graphite/ABS composites prepared via supercritical CO2 processing

Loading next page...
Springer Berlin Heidelberg
Copyright © 2017 by Springer-Verlag Berlin Heidelberg
Chemistry; Polymer Sciences; Soft and Granular Matter, Complex Fluids and Microfluidics; Characterization and Evaluation of Materials; Physical Chemistry; Organic Chemistry
Publisher site
See Article on Publisher Site


You’re reading a free preview. Subscribe to read the entire article.

DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 12 million articles from more than
10,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Unlimited reading

Read as many articles as you need. Full articles with original layout, charts and figures. Read online, from anywhere.

Stay up to date

Keep up with your field with Personalized Recommendations and Follow Journals to get automatic updates.

Organize your research

It’s easy to organize your research with our built-in tools.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

Monthly Plan

  • Read unlimited articles
  • Personalized recommendations
  • No expiration
  • Print 20 pages per month
  • 20% off on PDF purchases
  • Organize your research
  • Get updates on your journals and topic searches


Start Free Trial

14-day Free Trial

Best Deal — 39% off

Annual Plan

  • All the features of the Professional Plan, but for 39% off!
  • Billed annually
  • No expiration
  • For the normal price of 10 articles elsewhere, you get one full year of unlimited access to articles.



billed annually
Start Free Trial

14-day Free Trial