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Journal of Materials Science

, Volume 42, Issue 12, pp 4575–4580 | Cite as

Analysis of gas sensing behaviors of carbon black/waterborne polyurethane composites in low concentration organic vapors

  • Bin Zhao
  • Ruo Wen Fu
  • Ming Qiu ZhangEmail author
  • Bin Zhang
  • Wei Zeng
  • Min Zhi Rong
  • Qiang Zheng
Article

Abstract

Conductive composite comprised of carbon black and waterborn polyurethane was prepared by latex blending. It exhibited sensitivity to non-polar solvent vapors and polar solvent vapors as a result of the microphase separation structure of polyurethane. By studying the electrical response and absorption behaviors of the composite in low vapor pressure, a model based on Flory–Huggins principle was proposed to discuss the specific performance of the composite, including selective sensitivity, influences of vapor pressure and test temperature. Interaction between solvent and matrix polymer was proved to determine the maximum magnitude of response of the composite.

Keywords

Solvent Vapor Hard Segment Soft Segment DMPA Equilibrium Adsorption Capacity 

Notes

Acknowledgements

The authors would like to thank the financial supports of the Natural Science Foundation of China (Grant 50133020), the Team Project of the Natural Science Foundation of Guangdong (Grant 20003038) and the Talent Training Program Foundation of the Higher Education Department of Guangdong Province.

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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • Bin Zhao
    • 1
  • Ruo Wen Fu
    • 1
    • 2
  • Ming Qiu Zhang
    • 2
    Email author
  • Bin Zhang
    • 2
  • Wei Zeng
    • 2
  • Min Zhi Rong
    • 2
  • Qiang Zheng
    • 3
  1. 1.Key Laboratory for Polymeric Composite and Functional Materials of Ministry of EducationZhongshan UniversityGuangzhouP.R. China
  2. 2.Materials Science InstituteZhongshan UniversityGuangzhouP.R. China
  3. 3.Department of Polymer Science and EngineeringZhejiang UniversityHangzhouP.R. China

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