Carbon nanotube-polybutadiene-poly(ethylene oxide)-based composite fibers. Role of cryogenic treatment on intrinsic properties

Autor(en)

Remzi Gürbüz, Baran Sarac, Viktor Soprunyuk, Amir Rezvan, Eray Yüce, Wilfried Schranz, Jürgen Eckert, Ali Ozcan, A. Sezai Sarac

Abstrakt

The low-temperature response and the notion of crystallization kinetics are critical for developing elastomeric composite fibers, thus the crystallization and mechanical properties are essential for the application of composites of polybutadiene at low temperatures. Despite the high amount of fiber joining and entanglement due to polymers' low glass transition, a defect-free micro-scale electrospun carbon nanotube (CNT)-containing poly(ethylene oxide) (PEO) and polybutadiene (PBu) composite elastomeric fibers with uniform fiber diameter and distribution are successfully fabricated. Thermomechanical behavior analyzed via frequency-dependent dynamic mechanical analysis under cryogenic conditions shows a remarkable increase in decomposition temperatures (Tend) and storage and loss modulus at cryogenic temperatures, particularly when small amounts of CNTs are present. Dynamic mechanical treatment from 120 K to elevated temperatures yields a pronounced logarithmic increase in Tend by an increase of PEO content (from BEC1 to BEC4) compared to the treatment from 300 K. Through X-ray diffraction, large shifts toward larger 2θ and formation of new crystals are observed, particularly for the BEC4 sample with high PEO content. Nanoparticles after cryo-treatment linked with crystallinity are registered by ultra-high resolution scanning electron microscopy. Improving the thermal and mechanical properties is critical in developing high-performance composite fibers for cryogenic engineering applications, especially for future research to facilitate them in aerospace and low-temperature medical and surgical treatments.

Organisation(en)

Physik Funktioneller Materialien

Externe Organisation(en)

Eskisehir Technical University, Österreichische Akademie der Wissenschaften (ÖAW), Montanuniversität Leoben, İstanbul Teknik Üniversitesi

Journal

Polymers for Advanced Technologies

Band

33

Seiten

3966-3976

Anzahl der Seiten

11

ISSN

1042-7147

DOI

https://doi.org/10.1002/pat.5828

Publikationsdatum

09-2022

Peer-reviewed

Ja

ÖFOS 2012

103023 Polymerphysik

Schlagwörter

ASJC Scopus Sachgebiete

Polymers and Plastics

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/cab3b44d-83eb-4776-a5a8-041c239c7b10