Property improvement of CNT spun yarns and their composites through pressing, stretching and tensioning

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24210%2F19%3A00008986" target="_blank" >RIV/46747885:24210/19:00008986 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.tandfonline.com/doi/full/10.1080/09243046.2019.1610586" target="_blank" >https://www.tandfonline.com/doi/full/10.1080/09243046.2019.1610586</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1080/09243046.2019.1610586" target="_blank" >10.1080/09243046.2019.1610586</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Property improvement of CNT spun yarns and their composites through pressing, stretching and tensioning

Popis výsledku v původním jazyce

Untwisted multi-walled carbon nanotube (CNT) yarn was spun from vertically aligned CNT arrays by solid-state drawing CNT webs through a ceramic die. CNT yarn-reinforced epoxy composites were developed using a resin drop method. Waviness and poor packing of CNTs in the untwisted spun yarns have limited the mechanical properties of the yarns and their composites. Therefore, pressing along with sliding was applied to create thin-twisted yarns with dense packing of the CNTs. Besides, stretching and tensioning techniques were applied to the twisted yarns to reduce twist angle as well as waviness of the CNTs and their bundles. Stretching and tensioning of the press-slid yarns under constant loads of 0.15, 0.25, 0.35 N enhanced the mechanical properties of the yarns significantly. Moreover, stretching and tensioning of the press-slid CNT yarns increased the mechanical properties of the yarn composites considerably. However, tensioning of the press-slid yarns is more effective than their stretching.

Název v anglickém jazyce

Property improvement of CNT spun yarns and their composites through pressing, stretching and tensioning

Popis výsledku anglicky

Untwisted multi-walled carbon nanotube (CNT) yarn was spun from vertically aligned CNT arrays by solid-state drawing CNT webs through a ceramic die. CNT yarn-reinforced epoxy composites were developed using a resin drop method. Waviness and poor packing of CNTs in the untwisted spun yarns have limited the mechanical properties of the yarns and their composites. Therefore, pressing along with sliding was applied to create thin-twisted yarns with dense packing of the CNTs. Besides, stretching and tensioning techniques were applied to the twisted yarns to reduce twist angle as well as waviness of the CNTs and their bundles. Stretching and tensioning of the press-slid yarns under constant loads of 0.15, 0.25, 0.35 N enhanced the mechanical properties of the yarns significantly. Moreover, stretching and tensioning of the press-slid CNT yarns increased the mechanical properties of the yarn composites considerably. However, tensioning of the press-slid yarns is more effective than their stretching.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Advanced Composite Materials

ISSN

0924-3046

e-ISSN

—

Svazek periodika

28

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

18

Strana od-do

507-524

Kód UT WoS článku

000470384800001

EID výsledku v databázi Scopus

2-s2.0-85065407201