test
Search publications, data, projects and authors

Thesis

Spanish

ID: <

http://hdl.handle.net/10251/149430

>

Where these data come from
Desarrollo de aditivos ignífugos a partir de biomasa e incorporación en matrices bio-epoxi como materiales sostenibles para el sector ferroviario y aeronáutico

Abstract

[EN] This work focuses on the synthesis and characterization of a green and renewable polyelectrolyte complex (PEC) containing phosphorus, nitrogen and carbon elements, based on the ionic complexation between chitosan (CS) and phytate ion. Introduction of this PEC to bio-epoxy resins, as sustainable flame retardant materials for the railway and aeronautical sector, leads to an improvement of the flame retardant properties. Thermogravimetric tests show an increase of more than 280°C in the total decomposition temperature of the PEC, with respect to the CS, and a percentage of char of 27% wt. at a temperature of 900°C. The incorporation of 20phr of PEC with 40phr of modified ammonium polyphosphate, APPm, into the bio-epoxy resin, (Bioepoxy/40APPm/20PEC) led to an improvement in the fire resistance of the material. The Bio-epoxy/40APPm/20PEC system showed a reduction of the total heat released, THR, of 90% compared to the bio-epoxy resin without additive, and 50% compared to the bioepoxy resin loaded only with 60phr of APPm, according to the cone calorimetry tests carried out. TFGM

Your Feedback

Please give us your feedback and help us make GoTriple better.
Fill in our satisfaction questionnaire and tell us what you like about GoTriple!