Epichlorohydrin rubber ECO copolymerized by epichlorohydrin, ethylene oxide, the molecular chain does not contain the double bond, the side chain is the chloromethyl, has the excellent? oil resistance, heat resistance of aging, cold resistance and half elec- trical conductivity.
Hardness (shore A) | 71 |
Tensile strength at break Tb (Mpa) | 13.5 |
Elongation at break Eb (%) | 410 |
Heat resistance of aging 150℃×72hrs | |
Hardness (shore A) | -1 |
Change rate of tensile strength at break Tb (%) | -21 |
Change rate of elongation at break Eb (%) | -43 |
Compression set (%) | |
125℃×72hrs 30% | 39 |
Resistance to 903# oi 125℃×72hrs | |
Hardness (shore A) | -1.5 |
Change rate of tensile strength at break Tb (%) | -5.6 |
Change rate of elongation at break Eb (%) | -2.1 |
Volume change △V (%) | 3.1 |
Resistance to fuel C 40℃×48hrs | |
Volume change △V (%) | 43 |
Cold resistance | |
Bending fracture temperature T (℃) | -42 |
