New ecological polyester resins with reduced flammability and smoke evolution capacity

✍ Scribed by Ewa Kicko-Walczak

• Publisher: John Wiley and Sons
• Year: 1999
• Tongue: English
• Weight: 114 KB
• Volume: 74
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/(sici)1097-4628(19991010)74:2<379::aid-app19>3.0.co;2-1

✦ Synopsis

Smoke evolution in a smoke chamber 750 ϫ 750 ϫ 1000 Ϯ 5 mm (Polish Standard PN-91/K-02501 equivalent to UIC 561-OR 1991) was studied in, and the oxygen index flammability test (Polish Standard PN-76/C-89020) was carried out 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 these properties of such additives as ZnSnO 3 (ZS), ZnSn(OH) 6 (ZHS), Al(OH) 3 , or Mg(OH) 2 and Sb 2 O 3 in up to 30 mass % was determined. The most efficient ignition and smoke-evolution retarder from among the investigated compounds were ZS and ZHS, and an essential reduction in smoke evolution was also observed with Sb 2 O 3 . GRP laminates with these additives meet the fire safety recommendations concerning smoke evolution for materials used in transportation and in the building industry.