The effect of carbon fiber plasma treatment on the wettability and interlaminar shear strength of geopolymer composite

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00010669%3A_____%2F19%3AN0000070" target="_blank" >RIV/00010669:_____/19:N0000070 - isvavai.cz</a>

Výsledek na webu

<a href="https://link.springer.com/article/10.1007/s41779-019-00328-4" target="_blank" >https://link.springer.com/article/10.1007/s41779-019-00328-4</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s41779-019-00328-4" target="_blank" >10.1007/s41779-019-00328-4</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The effect of carbon fiber plasma treatment on the wettability and interlaminar shear strength of geopolymer composite

Popis výsledku v původním jazyce

Interlaminar shear strength (ILSS) of composite depends on the adhesion between its reinforcement and matrix. To improve the mechanical properties of geopolymer composite reinforced with carbon fibers (CFs), the surface of the fibers was modified by plasma treatment in four types of argon atmosphere. The modification of the CFs was evaluated by contact angle measurement, scanning electron microscopy, and X-ray photoelectron spectroscopy. Geopolymer matrix was prepared by the dissolution of metakaolin and an amorphous silica in an aqueous solution of potassium silicate. Vacuum bagging technique was used to prepare the CF/geopolymer composite. The mechanical properties of the composites were determined by ILSS test. The results were compared to results obtained for untreated carbon fibers and their composites. A significant increase of the wettability of CFs was achieved for all plasma treatments and the increase of oxygen functional groups was detected on the CF surface. The results of the mechanical test confirmed improved adhesion for composite samples with CFs treated by plasma in argon atmosphere. Other samples exhibited low or no adhesion between the fibers and matrix. This leads to the conclusion that there are more effects influencing the adhesion than only the properties of CFs.

Název v anglickém jazyce

The effect of carbon fiber plasma treatment on the wettability and interlaminar shear strength of geopolymer composite

Popis výsledku anglicky

Interlaminar shear strength (ILSS) of composite depends on the adhesion between its reinforcement and matrix. To improve the mechanical properties of geopolymer composite reinforced with carbon fibers (CFs), the surface of the fibers was modified by plasma treatment in four types of argon atmosphere. The modification of the CFs was evaluated by contact angle measurement, scanning electron microscopy, and X-ray photoelectron spectroscopy. Geopolymer matrix was prepared by the dissolution of metakaolin and an amorphous silica in an aqueous solution of potassium silicate. Vacuum bagging technique was used to prepare the CF/geopolymer composite. The mechanical properties of the composites were determined by ILSS test. The results were compared to results obtained for untreated carbon fibers and their composites. A significant increase of the wettability of CFs was achieved for all plasma treatments and the increase of oxygen functional groups was detected on the CF surface. The results of the mechanical test confirmed improved adhesion for composite samples with CFs treated by plasma in argon atmosphere. Other samples exhibited low or no adhesion between the fibers and matrix. This leads to the conclusion that there are more effects influencing the adhesion than only the properties of CFs.

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

Journal of the Australian Ceramic Society

ISSN

2510-1560

e-ISSN

2510-1579

Svazek periodika

55

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

7

Strana od-do

1139-1145

Kód UT WoS článku

000501221400025

EID výsledku v databázi Scopus

2-s2.0-85076436441