ABSTRACT
Cure Systems ............................................................................................. 212 6.7 Vulcanization: Copolymers (Vamac D, Vamac DLS) .............................. 213 6.8 Mixing of AEM Compounds..................................................................... 215
6.8.1 Internal Mixers............................................................................... 215 6.8.2 Roll Mill Mixing............................................................................ 216
6.9 Processing of AEM Compounds ............................................................... 217 6.9.1 Extrusion ........................................................................................ 217 6.9.2 Calendering .................................................................................... 217 6.9.3 Molding.......................................................................................... 217
6.10 Development Programs-New Polymers .................................................. 220
...................... 220 6.11.1 Seals, Gaskets, and General Molded Applications.................... 221 6.11.2 High Performance Automotive Hoses ....................................... 225 6.11.3 Dampers-Torsional Dampers .................................................. 226 6.11.4 Wire and Cable .......................................................................... 228 6.11.5 O-Rings...................................................................................... 234 6.11.6 CVJ Boots.................................................................................. 234 6.11.7 Cellular Vamac-Closed Cell ................................................... 236 6.11.8 Roll Covers ................................................................................ 237 6.11.9 Oil Field Applications................................................................ 239 6.11.10 Low Smoke Flooring and Extruded Edging.............................. 239
Appendix-List of Chemicals .............................................................................. 243 References ............................................................................................................. 244
Vamac ethylene=acrylic (AEM) elastomers were introduced commercially in 1975 to meet the escalating temperature and fluid resistance requirements of the automobile industry. This high-performance elastomer was designed to combine high heat and service fluid resistance with good low-temperature properties. Good physical strength of vulcanizates, excellent ozone and weather resistance, and excellent damping characteristics-over a broad temperature range, are a consequence of the chemical composition of AEM.
