Synthesis and Properties of Poly[p-(2,5-dihydroxy)-phenylenebenzobisoxazole] Fiber
2008

Synthesis and Properties of PBOH Fiber

publication Evidence: moderate

Author Information

Author(s): Lin Hong Huang, Yu-Dong Wang, Feng

Primary Institution: Harbin Institute of Technology

Hypothesis

The introduction of hydroxyl groups into the PBO chain will improve the compressive strength of the fiber.

Conclusion

The PBOH fiber has a thermal degradation temperature above 750K and a tensile strength of 3.1 GPa, which is lower than that of PBO fiber.

Supporting Evidence

  • The thermal degradation of PBOH occurs above 750 K.
  • The tensile strength of PBOH fiber is 3.1 GPa.
  • The compressive strength of PBOH fiber is slightly higher than that of PBO fiber.

Takeaway

Scientists made a new type of fiber called PBOH that is supposed to be stronger when squished, but it didn't turn out as strong as they hoped.

Methodology

The PBOH fiber was synthesized using polycondensation and characterized through various analyses including thermal and mechanical testing.

Limitations

The compressive strength of PBOH fiber is still much lower than that of other high-performance fibers like Kevlar.

Digital Object Identifier (DOI)

10.3390/ijms9112159

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