Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Mechanical and Flammability Properties of Green Polyurethane Foam with Alumina Trihydrate as Flame Retardant
Submission Author:
Amanda Silva , RS
Co-Authors:
Amanda Silva, Enio Henrique Pires da Silva, Danilo Janes, Romeu Rony Cavalcante da Costa, Giovanna Gabriela Crem Silva
Presenter: Enio Henrique Pires da Silva
doi://10.26678/ABCM.COBEM2017.COB17-2180
Abstract
This paper investigates the rigid green polyurethane foam (PUF) mechanical and flammability properties when adding alumina trihydrate (ATH) as fire retardant to its composition. The rigid PUF used in this work was made of a blend of vegetable oils. The flexural stress-strain curves were obtained by the three-pointing loading flexural test, and the flammability classifications were defined according to ASTM D3801-10. The addition of ATH in different weight percentages showed different and intriguing behaviors in the PUF elasticity and flexural strengths. Until 30 wt.% of ATH, the more percentage of ATH was added into the mixture, the bigger was the decrement of the ultimate flexural strain, although, the flexural strength and elasticity modulus had non-linear behaviors with the more increment of ATH into the mixture. The ATH addition increased considerably the fire resistance of PUF when 30 wt.% was added into the mixture, although, the results from the flammability test could not classify the doped PUF with 30% ATH as determines the standard.
Keywords
Polyurethane foam, Alumina trihydrate, Flame-retardant, Mechanical Properties
