The present work is a further development of a study already started on modified epoxy/polyester systems /1/. In previous studies, attempts to incorporate covalently bonded phosphorous atoms in epoxy resins were carried out in our laboratory. Neat panels and glass-fibre (GF) reinforced composites were prepared using halogen free flame-retardant (FR) additives. These materials were tested on a cone calorimeter apparatus in order to evaluate the heat release rate (HRR) and the ignition time values for each FR formulation. LOI and UL94 tests were carried out. In the present paper, red phosphorous (Red P) together with aluminium oxide trihydrate (ATH) and glass fibre (GF) was found to be a good substitutive formulation to replace halogen based FR-additives.
A further study on new halogen-free flame-retarded thermosets
Motta, O;
2002
Abstract
The present work is a further development of a study already started on modified epoxy/polyester systems /1/. In previous studies, attempts to incorporate covalently bonded phosphorous atoms in epoxy resins were carried out in our laboratory. Neat panels and glass-fibre (GF) reinforced composites were prepared using halogen free flame-retardant (FR) additives. These materials were tested on a cone calorimeter apparatus in order to evaluate the heat release rate (HRR) and the ignition time values for each FR formulation. LOI and UL94 tests were carried out. In the present paper, red phosphorous (Red P) together with aluminium oxide trihydrate (ATH) and glass fibre (GF) was found to be a good substitutive formulation to replace halogen based FR-additives.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
