Complex structures formed by combination of polymer-grafted GO and impact modifier in epoxy

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F21%3A00546636" target="_blank" >RIV/61389013:_____/21:00546636 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S2238785421007572?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2238785421007572?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jmrt.2021.07.094" target="_blank" >10.1016/j.jmrt.2021.07.094</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Complex structures formed by combination of polymer-grafted GO and impact modifier in epoxy

Popis výsledku v původním jazyce

Parameters of epoxy can be effectively improved using polymer-grafted GO. This study reveals so far unknown structure-directing performance of single- and bimodally-grafted GO in impact-modified epoxy. Bimodal grafting leads to formation of lamellae with less ordered more distant GO and fair mobility of grafted dissimilar chains due to their repulsive interactions, resulting in favourable effect on mechanical properties of epoxy. Unlike single-grafted GO with aligned plates, this ordering is not disturbed by added rubber which is more markedly incorporated even as layered domains into lamellae. Formation of more complex structures controlled by grafting geometry was also found. Structure–properties relationships indicate low contribution of added rubber, both as single inclusions or incorporated into ordered GO domains, which confirms high effectivity of lamellar structure with linked polymer chains of relatively high mobility.

Název v anglickém jazyce

Complex structures formed by combination of polymer-grafted GO and impact modifier in epoxy

Popis výsledku anglicky

Parameters of epoxy can be effectively improved using polymer-grafted GO. This study reveals so far unknown structure-directing performance of single- and bimodally-grafted GO in impact-modified epoxy. Bimodal grafting leads to formation of lamellae with less ordered more distant GO and fair mobility of grafted dissimilar chains due to their repulsive interactions, resulting in favourable effect on mechanical properties of epoxy. Unlike single-grafted GO with aligned plates, this ordering is not disturbed by added rubber which is more markedly incorporated even as layered domains into lamellae. Formation of more complex structures controlled by grafting geometry was also found. Structure–properties relationships indicate low contribution of added rubber, both as single inclusions or incorporated into ordered GO domains, which confirms high effectivity of lamellar structure with linked polymer chains of relatively high mobility.

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

<a href="/cs/project/GA19-06065S" target="_blank" >GA19-06065S: Optimalizace termosetových kompozitů tvorbou samouspořádaných struktur s využitím modifikovaných uhlíkových nanodestiček</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Journal of Materials Research and Technology-JMR&T

ISSN

2238-7854

e-ISSN

2214-0697

Svazek periodika

14

Číslo periodika v rámci svazku

September–October

Stát vydavatele periodika

BR - Brazilská federativní republika

Počet stran výsledku

6

Strana od-do

1969-1974

Kód UT WoS článku

000702861300012

EID výsledku v databázi Scopus

2-s2.0-85111714872