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The joint effect of amine and maleimide functional group in aminomaleimide on the curing kinetics and mechanical properties of epoxy resins
ID Ručigaj, Aleš (Avtor), ID Kovačič, Žan (Avtor), ID Štirn, Žiga (Avtor), ID Krajnc, Matjaž (Avtor)

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Izvleček
A new epoxy curing system, combining amine and maleimide functionality into a single molecule, was introduced to broaden current state of the art as regards epoxy, amine and maleimide systems. Curing agent aminomaleimide was tested in the curing process of several aromatic and aliphatic epoxies. Prepared mixtures in different weight (molar) ratios were investigated by nonisothermal differential scanning calorimetry to study and compare curing kinetics of different epoxies. The apparent activation energy was determined by Kissinger method, while Friedman method accompanied by Malék statistical approach was used in confirming the autocatalytic nature of epoxy curing and additional maleimide polymerization at the excess amount of aminomaleimide. Thermo-mechanical properties were determined by dynamic mechanical analysis and the effect of aminomaleimide curing agent compared to curing agent containing only amino functional groups was evaluated. Aminomaleimide showed improvement in the glass transition temperatures and higher char yields due to the involvement of maleimide moiety in the curing process. In overall, aminomaleimide showed the positive one-molecule joint effect of the amino group, behaving as an accelerator, and maleimide group, a mechanical properties enhancer.

Jezik:Angleški jezik
Ključne besede:epoxy, amine, maleimide, curing kinetics, thermal properties
Vrsta gradiva:Članek v reviji (dk_c)
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:FKKT - Fakulteta za kemijo in kemijsko tehnologijo
Leto izida:2020
Status objave pri reviji:Objavljeno
Verzija članka:Postprint, avtorjeva končna recenzirana različica članka, sprejeta v objavo
Št. strani:Str. 1-10
Številčenje:Vol. 690, art. 178668
PID:20.500.12556/RUL-116744 Povezava se odpre v novem oknu
UDK:678.686
ISSN pri članku:0040-6031
DOI:10.1016/j.tca.2020.178668 Povezava se odpre v novem oknu
COBISS.SI-ID:17850883 Povezava se odpre v novem oknu
Datum objave v RUL:08.06.2020
Število ogledov:682
Število prenosov:150
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
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Gradivo je del revije

Naslov:Thermochimica acta
Skrajšan naslov:Thermochim. acta
Založnik:Elsevier
ISSN:0040-6031
COBISS.SI-ID:832516 Povezava se odpre v novem oknu

Licence

Licenca:CC BY-NC-ND 4.0, Creative Commons Priznanje avtorstva-Nekomercialno-Brez predelav 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by-nc-nd/4.0/deed.sl
Opis:Najbolj omejujoča licenca Creative Commons. Uporabniki lahko prenesejo in delijo delo v nekomercialne namene in ga ne smejo uporabiti za nobene druge namene.
Začetek licenciranja:08.06.2020

Sekundarni jezik

Jezik:Slovenski jezik
Ključne besede:epoksi, amini, maleimid, kinetika zamreževanja, termične lastnosti

Projekti

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:P2-0191
Naslov:Kemijsko inženirstvo

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