Banca de DEFESA: RODRIGO VICTOR BARBOSA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : RODRIGO VICTOR BARBOSA
DATE: 05/08/2021
TIME: 14:00
LOCAL: Remotamente pelo google meet
TITLE:

THERMOANALYTICAL EVALUATION OF POLYPROPYLENE DEGRADATION ON EXPANDED PERLITE COMPOSITE MATERIALS IMPREGNATED WITH CERIO, H-Y ZEOLITE AND THE COMPOSITE/ZEOLITE MIXTURE

KEY WORDS:

polypropylene; zeolite H-Y; expanded perlite; thermal degradation.

PAGES: 76
BIG AREA: Ciências Exatas e da Terra
AREA: Química
SUBÁREA: Físico-Química
SPECIALTY: Cinética Química e Catálise
SUMMARY:

ABSTRACT: The objective of this work was to evaluate the thermal degradation of polypropylene on the composite of expanded perlite impregnated with cerium oxide, hereinafter referred to as Ce-PER, as well as to compare it with the degradation of PP when using a commercial HY zeolite and a mixture of Ce-PER with HY. Cerium oxide was added to the expanded perlite by means of the excess solvent co-impregnation method. The materials were analyzed by the techniques of XRD, XRF, SEM, TG/DTG and acidity test by thermal desorption of n-butylamine. The degradation profile of polypropylene was evaluated in a thermobalance. The degradation of PP was catalyzed when mixtures containing 30%H-Y + PP and 15%H-Y + 15%Ce-PER + PP were used. On the other hand, PP received a thermal stabilization effect when using the mixtures containing 10% and 30%Ce-PER + PP. The acidity analysis yielded the total acid site density values for zeolite H-Y (2,30 mmol) and for Ce-PER (0,2 mmol).

BANKING MEMBERS:
Interno - 350509 - ANTONIO SOUZA DE ARAUJO
Externo à Instituição - GLAUBER JOSE TUROLLA FERNANDES - UNP
Presidente - 1149328 - VALTER JOSE FERNANDES JUNIOR