Study on Polyhydroxyamide/Carbon Nanotube Nanocomposite Fibers

폴리히드록시아미드/CNT 나노복합체 섬유에 대한 연구

Jee, Min Ho;Kang, Chan Sol;Yeo, Moon Jin;Baik, Doo Hyun

  • Received : 2015.11.10
  • Accepted : 2015.12.02
  • Published : 2015.12.31


Polyhydroxyamide (PHA) was synthesized by low-temperature solution polymerization of 3,3'-dihydroxybenzidine and terephthaloyl chloride. Then, pure PHA and PHA nanocomposite fibers, including multi-walled carbon nanotube (MWNT), were prepared by a wet-spinning process. The structural characteristics, thermal properties, and mechanical performances, such as tensile strength, initial modulus, and compressive strength, of the PHA fibers were investigated using FT-IR, TGA, and a tensile testing machine. The TGA results show that the PHA fiber has excellent thermal stability at high temperatures and can undergo thermal cyclization to yield PBO fiber. The tensile mechanical properties of PHA nanocomposite fibers were better than those of pure PHA fiber, and they were improved on increasing the MWNT content. The highly improved mechanical properties of the nanocomposite fibers are thought to be related to the strong interfacial interactions between the PHA matrix and MWNT.


polyhydroxyamide fiber;multi-walled carbon nanotube;wet-spinning;mechanical properties


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  1. Thermal Cyclization Behavior of Polyhydroxyamide Copolymers vol.53, pp.5, 2016,


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