Banca de QUALIFICAÇÃO: FRANCINE BRANCO TAKAMOTO

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : FRANCINE BRANCO TAKAMOTO
DATE: 21/10/2024
TIME: 13:30
LOCAL: Campus Feliz (defesa online) link meet: meet.google.com/rzh-ayvc-yrv
TITLE:

EVALUATION OF THE IMPACT OF LIMONENE DIOXIDE INCORPORATION ON THE THERMAL, MECHANICAL AND DYNAMIC MECHANICAL PROPERTIES OF DGEBA EPOXIDE

KEY WORDS:

bio epoxy, limonene dioxide, thermal characterization

PAGES: 40
BIG AREA: Engenharias
AREA: Engenharia de Materiais e Metalúrgica
SUBÁREA: Materiais Não-Metálicos
SPECIALTY: Polímeros, Aplicações
SUMMARY:

This study aims at evaluating the influence of incorporating different amounts of limonene dioxide (LDO), 20, 40, 60, 80 and 100 wt%, into a commercial epoxy resin based on bisphenol A diglycidyl ether (DGEBA), using an anhydride as hardener. The samples were prepared by casting into a silicone mold, cured, and post-cured in an oven. The samples containing 20 to 60 wt% of LDO presented T_g values close to that of the DGEBA resin. there was a decrease in thermal stability with increasing LDO content. Furthermore, an unreacted oxirane ring was present in the samples containing LDO. Thus, although it is still necessary to adjust the curing conditions, it can be concluded that there is potential for the partial replacement of commercial epoxy resin with limonene dioxide up to 60 wt%.

COMMITTEE MEMBERS:
Presidente - 2383615 - DAIANE ROMANZINI
Interno - 1332290 - EDSON LUIZ FRANCISQUETTI
Interna - 2386942 - EVELINE BISCHOFF
Externo ao Programa - 023.442.300-50 - MAURÍCIO CARPE DIEM FERREIRA XAVIER - UFRGS