Page 212 - b.safe catalog

180 b.safe TECHNICAL INFORMATION
Technical Plastics
PA – Polyamides
Condensation polymers obtained either from amino acids respectively from
their lactams (e. g. caproic lactam) or diamine and dicarboxylic acid ( e. g. adipic acid and hexamethylene-diamine). In general, polyamides are defined according to the number of carbon atoms of their monomers, e. g. PA 6 = polycarbonic lactam or PA 12 = polylauric lactam. PA 6 is the most commonly used polyamide. All polyamides are characterised by high strength and scuff resistance. The application range varies from simple turned parts such as screws or nuts to plain bearings or toothed wheels.
High-performance Plastics
PPS – Polyphenylsiloxan
Technical high-performance plastic. This macromolecule consists of pheny- lene rings and one S-atom which provide a good chemical resistance even at high working temperatures. PPS is particularly suitable for the production of moulded pieces which are exposed to high mechanical and thermal stresses. Injection moulding is the most common processing technology for this mate- rial, in addition, single components can be made of semi-finished products by cutting. Special glass-fibre reinforced compounds offer an improved rigidity, sturdiness and dimensional stability under heat compared to non-reinforced compounds.
HHH H
... N
C N C C C ...
H6 OH6O
n
Trade names
Ultramid® by BASF Durethan® by Bayer Grilon® by Ems Chemie
...S... n
Trade names
Fortron® by Celanese Ryton® by Phillips Petroleum Chemicals
Alton® Intern. Polymer Corp.