| 摘要 |
<p>A halogen-free, electrically insulating film comprising a resin component containing: a) from 0 to about 40 parts of a rubber selected from EP or EPDM rubber, b) correspondingly, from about 60 to about 100 parts of an ethylene vinyl acetate polymer, c) from about 40 parts to about 150 parts ethylene diamine phosphate per 100 parts of said resin component, and d) from about 0.5 to about 5 parts of an amino-functional silane coupling agent per 100 parts resin component, wherein a nonoriented film self-extinguishes in less than about 5 seconds, has an elongation at break of at least about 200%, a dielectric strength of at least about 1200 V/Mil, and said film has a stress-strain relationship such that a curve showing a first derivative of stress versus strain is positive over the entire curve, and a curve showing a second derivative of stress versus strain is negative over more than 50% of said curve.</p> |
