Data/hora: 06/06/2024 07:57:35

Provedor de dados: 	42	
País: 	Brazil	
Título: 	Expanded perlite/cork fillers applied to aerospace insulation materials	
Autores: 	PINTO,JULIANO R.A.; SANCHES,NATALIA B.; DINIZ,MILTON F.; SANTOS,RÉGIS S.; OLIVEIRA,JOSÉ I.S. DE; DUTRA,RITA DE CÁSSIA L.	
Data: 	2018-09-01	
Ano: 	2018	
Palavras-chave: 	Asbestos replacement; Cork; HTPB; Insulation; Perlite.	
Resumo: 	Abstract Insulations for rocket motors such as Flexible Thermal Protections (FTPs) and Rigid Thermal Protection (RTPs) act as thermal barriers against the hyperthermal environment from the solid propellant combustion. FTPs present dual function: to extend RTPs performance, and to attenuate the propellant contraction. FTPs used in the Brazilian Space Program have asbestos in their composition since the 70´s; however, they are hazardous for human health. In this context, a mixture of Expanded Perlite (PExp) and Cork Powder (CP) was investigated as a replacement for asbestos. Results showed reduction about 21 % in density and an increase of 13 % in the ablative properties. The low mechanical properties not interfere in this type of FTP due to your function of attenuate the propellant contraction.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000603197	
Editor: 	Academia Brasileira de Ciências	
Relação: 	10.1590/0001-3765201820170964	
Formato: 	text/html	
Fonte: 	Anais da Academia Brasileira de Ciências  v.90 n.3 2018	
Fonte: 	info:eu-repo/semantics/openAccess