New polyester resins with reduced flammability and smoke evolution capacity

✍ Scribed by Ewa Kicko-Walczak

• Publisher: John Wiley and Sons
• Year: 1998
• Tongue: English
• Weight: 85 KB
• Volume: 22
• Category: Article
• ISSN: 0308-0501
• DOI: 10.1002/(sici)1099-1018(199811/12)22:6<253::aid-fam661>3.0.co;2-o

✦ Synopsis

Smoke evolution [in NBS chamber by the ASTM E-622-(1983) method] and ignitability (by the oxygen-index method) was investigated for glass-reinforced 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 2 O 3 , Al(OH) 3 , MoO 3 , Mg(OH) 2 and melamine diphosphate in an amount up to 30 mass-% 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 from materials used in transportation means and in the building industry.