 |
| Main Menu | News By Date | News By Supplier | News By Category | About Us |
|
DUPONT NEW ENGINEERING POLYMERS PASS TOUGHER GLOW-WIRE TESTS
To improve the fire-safety of unattended domestic electrical appliances, the revised IEC 60335-1 standard lays down more stringent requirements for the glow-wire test for plastics materials. Many engineering plastics in DuPont's portfolio of thermoplastics meet or exceed these tighter safety requirements, which govern their use in electrical and electronic components of washing machines, refrigerators, cooking ovens, microwaves and similar appliances. This new standard is coming into force now. There are several flame-retardant types in the DuPont Crastin PBT (polybutylene terephthalate), DuPont Rynite PET (polyethylene terephthalate) and DuPont Thermx PCT (polycyclohexylene-dimethyl-terephthalate) ranges, among the DuPont Zytel nylon 6 and nylon 66 resins, as well as the DuPont Zytel HTN high-performance nylons, which meet the more stringent requirements of the glow-wire test calling for higher temperatures and shorter permitted after-burn times. At the same time some types also meet the growing demand for flame-retardancy without halogen and red phosphorus content; these include DuPont Zenite LCP types which are inherently flame-retardant incorporate and thus need no flame-retardant additives, and some Zytel nylon types which incorporate new flame-retardancy systems. Similar product developments are under way with the thermoplastic polyesters. Hubert Müller, domestic appliances segment leader for Central Europe in the Engineering Polymers enterprise, comments: "With our current product portfolio and our experienced, international team of counsellors, we in DuPont, in close co-operation with our customers, are well positioned to find solutions for new designs or to substitute suitable materials in existing designs, or to develop them for specific applications."
|
| ©2008 New Materials International |