Banca de QUALIFICAÇÃO: Luís Felipe Cabral Diogo Nogueira

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : Luís Felipe Cabral Diogo Nogueira
DATE: 17/06/2024
TIME: 15:00
LOCAL: Online
TITLE:

PRELIMINARY INVESTIGATION OF CASTOR-OIL ADHESION ON ALUMINIUM

THROUGH SINGLE-LAP TESTS

KEY WORDS:

Adhesion; Castor-oil polyurethane; Mechanical Properties; Single-
Lap; Biofoam.

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

This work investigates the adhesion of a castor-oil-based polyurethane (PU)
biofoam to aluminium surfaces. The apparent shear strength of single-lap joints is
assessed following the ASTM standard D1002. 3D-printed moulds were developed for
sample preparation. The study evaluates two different bonding strategies related to
resin curing: (1) Simple Cure and (2) Co-Cure with Adhesive Layer. The Simple Curing
method is conducted by expanding the PU biofoam in the mould cavity in contact with
the aluminium sheets. In the second method, a layer of castor-oil PU is previously
applied on the internal aluminium surfaces before pouring the PU foam admixture. The
foaming process thus occurs inside the mould as in (2), with the additional co-cure of
the adhesive PU layer on the aluminium sheets. This study is motivated by a subsequent
study on foam-core sandwich panels, in which the best face-core bonding strategy will
be used.

BANKING MEMBERS:
Presidente - 1827328 - RODRIGO TEIXEIRA SANTOS FREIRE
Interno - 1691537 - TULIO HALLAK PANZERA
Interno - 2695307 - LEANDRO JOSE DA SILVA
Externo à Instituição - JULIO CESAR DOS SANTOS - USP