New polyester Resins with Reduced Flammability and Smoke Evolution Capacity

摘要

Smoke evolution [in NBS chamber by the ASTM E-622-(1983) method] and ignitability (by the oxygen -index method) was investigated for glass-rienforced polyester (GRP) laminates obtained with unsaturated polyester (UP) resins containing chlorine and bromine in the chain. In these studies, the effect on the properties of such additives as Sb_2O_3, Al(OH)_3, MoO_3, Mg(OH)_2 and melamine diphosphate in an amount up to 30 mass-/100 was determined. The Most efficient ignition and smoke-evolution retarder of the investigated compounds was Mg(OH)_2, whereas an Essential reduction in smoke evolution was observed also with MoO_3. GRP laminates with these additives meet the Fire-safety recommendations concerning smoke evolution form materials used in transportation means and in the Building industry.