Banca de DEFESA: MARCELO STRASSBURGER

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : MARCELO STRASSBURGER
DATE: 14/03/2023
TIME: 14:00
LOCAL: Online
TITLE:

Use of 3D Printing: A study for the fabrication of composites developed with Polypropylene with clay.

KEY WORDS:

Clay, PP copolymer, 3d printing, characterization

PAGES: 70
BIG AREA: Engenharias
AREA: Engenharia de Materiais e Metalúrgica
SUMMARY:

The use of clays as reinforcement in polymers has been employed for many years, both in academic and industrial environments. Currently, there is an interest in searching for new clay deposits to increase availability, and the clays present in the Horizontina/RS region have not yet been characterized or studied for their potential in forming composites with polymers. Thus, the objective is to evaluate the thermal, rheological, and spectroscopic properties of clays from this region and their effects as reinforcements in Maxio RP347 polypropylene (Braskem S.A) and maleic anhydride-grafted polypropylene compatibilizer for the production of 3D printing filaments. Two clays from different sources were tested in compositions of 2% and 5%, with a significant increase in degradation temperature observed with the addition of clays at both concentrations, as well as a reduction in the crystallization temperature. Rheological analysis indicated an increase in complex viscosity, depending on the type of clay used. The clays produced a small increase in the elastic modulus and an increase in impact resistance. These findings demonstrate the viability of additive manufacturing of polymer-clay composites, leading to new applications and improved properties.

COMMITTEE MEMBERS:
Interna - 2383615 - DAIANE ROMANZINI
Interna - 2386942 - EVELINE BISCHOFF
Externo à Instituição - FABIO PINTO DA SILVA - UFRGS