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POSS-Based Fiber Carbon-Fiber Surface Treatment for Enhanced Durability of Composites

  • Blaze HeckertEmail author
  • Raman Singh
Conference paper
Part of the Conference Proceedings of the Society for Experimental Mechanics Series book series (CPSEMS)

Abstract

In the proposed study, we synthesize a clickable polyhedral oligomeric silsesquioxane (POSS) carbon fiber coating to enhance the fiber-matrix interfacial properties using the highly selective “thiol-ene click” chemistry. The unique hybrid structure of POSS molecules creates a spring-like effect when strongly bound to a surface, resulting in a smooth load transfer across the interphase region, making it uniquely suited for use as a fiber surface treatment to develop damage-tolerant composite laminates. This is the first study to date that reports on the use of “thiol-ene click” chemistry to create a controlled POSS coating to enhance the interfacial properties between the fiber and matrix. Thiol-ene chemistry is the reaction between a thiol (-SH) group and alkene group, creating a bond between the two materials. PAN-based carbon fibers undergo a series of chemical modification resulting in thiolated-carbon fibers. Octavinyl-POSS is selectively “clicked” to the carbon fiber surface, creating a strongly bound uniform POSS coating. These POSS-coated carbon fibers can now be used as a prepreg for the manufacturing of composites for aerospace applications requiring enhanced composite strength and durability. The fiber-matrix adhesion is characterized using fragmentation tests to determine the interfacial shear strength. Meanwhile, the surface treatment chemistry is characterized using FTIR and XPS techniques.

Keywords

POSS Thiol-ene Clickable Carbon fiber Composites 

Notes

Acknowledgements

This material is based upon work supported by National Science Foundation (NSF) under Grant No. 1649481.

References

  1. 1.
    F. Zhao, Y. Huang, L. Liu, Y. Bai, L. Xu, Formation of a carbon fiber/polyhedral oligomeric silsesquioxane/carbon nanotube hybrid reinforcement and its effect on the interfacial properties of carbon fiber/epoxy composites. Carbon 49(8), 2624–2632 (2011)CrossRefGoogle Scholar
  2. 2.
    S. Tiwari, J. Bijwe, Surface treatment of carbon fibers—a review. Procedia Tec. 14, 505–512 (2014)CrossRefGoogle Scholar
  3. 3.
    X.Z. Zhang, Y.J. Song, Y.D. Huang, Properties of silsesquioxane coating modified carbon fibre/polyarylacetylene composites. Compos. Sci. Technol. 67(14), 3014–3022 (2007)CrossRefGoogle Scholar
  4. 4.
    W. Zhang, S. Wang, X. Li, J. Yuan, S. Wang, Organic/inorganic hybrid star-shaped block copolymers of poly(1-lactide) and poly(N-isopropylacrylamide) with a polyhedral oligomeric silsesquioxane core: synthesis and self-assembly. Eur. Polym. J. 48(4), 720–729 (2012)CrossRefGoogle Scholar
  5. 5.
    W. Zhang, A.H.E. Muller, A “click chemistry” approach to linear and star-shaped telechelic POSS-containing hybrid polymers. Macromolecules 43(7), 3148–3152 (2010)CrossRefGoogle Scholar
  6. 6.
    W. Zhang, S. Wang, J. Kong, Hemi-telechelic and telechelic organic/inorganic poly(ethylene oxide) hybrids based on polyhedral oligomeric silsesquioxane (POSSs): synthesis, morphology and self-assembly. React. Funct. Polym. 72(9), 580–587 (2012)CrossRefGoogle Scholar
  7. 7.
    F. Zhao, Y. Huang, Improved interfacial properties of carbon fiber/epoxy composites through grafting polyhedral oligomeric silsesquioxane on carbon fiber surface. Mater. Lett. 64(24), 2742–2744 (2010)CrossRefGoogle Scholar
  8. 8.
    D. Jiang, L. Liu, F. Zhao, Q. Zhang, S. Sun, J. He, B. Jiang, Y. Huang, Improved interfacial properties of carbon fiber/unsaturated polyester composites through coating polyhedral oligomeric silsesquioxane on carbon fiber surface. Fibers Polym. 15(3), 566–573 (2014)CrossRefGoogle Scholar
  9. 9.
    G. Wu, L. Ma, Y. Wang, L. Liu, Y. Huang, Interfacial properties and impact toughness of methylphenylsilicone resin composites by chemically grafting POSS and tetraethylenepentamine onto carbon fibers. Compos. A: Appl. Sci. Manuf. 84, 1–8 (2016)CrossRefGoogle Scholar
  10. 10.
    L.K. Babu, K. Mishra, R.P. Singh, Nearfiber effects of UV irradiation on the fiber-matrix interphase: a combined experimental and numerical investigation. Mater. Des. 157, 294–302 (2018)CrossRefGoogle Scholar
  11. 11.
    G. Zhang, S. Sun, D. Yang, J.P. Dodelet, E. Sacher, The surface analytical characterization of carbon fibers functionalized by H2SO4/HNO3 treatment. Carbon 46(2), 196–205 (2008)CrossRefGoogle Scholar
  12. 12.
    S. Feih, K. Wonsyld, D. Minzari, P. Westermann, H. Lilholt, Testing Procedure for the Single Fiber Fragmentation Test, (2004)Google Scholar

Copyright information

© Society for Experimental Mechanics, Inc. 2020

Authors and Affiliations

  1. 1.School of Materials Science and EngineeringOklahoma State UniversityTulsaUSA
  2. 2.School of Mechanical and Aerospace EngineeringOklahoma State UniversityTulsaUSA

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