Rauemi Pūhiko Pēke
Rapa styrene butadiene (SBR)
Whakaahuatanga Hua
Rapa styrene butadiene: he rapa hangai i hangaia mā te whakakotahitanga o te styrene me te butadiene. Ka taea te whakaatu i tōna tauira matū penei: - (CH2-CH=CH-CH2) m - (CH-CH2) n -; Hei piripiri mō ngā irahiko, ka whakapai ake i te kaha ā-pūkaha me te pumau o ngā irahiko.
Ngā Mōhiohio Taketake.
| Tawhā | |
| Te hanganga matū | te copolymer o te styrene me te butadiene |
| Taumaha ngota | 100000~1000000 karamu/mol |
| Kiato | 0.94 karamu/cm³ |
| Te pāmahana whakawhiti karāhe (Tg) | -50°C~-60°C |
| Te mārō o te takutai A | 50~70 |
| Te kaha o te kume | 10-25 MPa |
| Te tere whakaroa | 300%~500% |
| Ātete hiko | 10 ¹²~10 ¹⁴Ω·cm |
| Te pumau o te wera | He pai te pumau o te pāmahana o te SBR, engari kaua e neke ake te pāmahana o te whakamahinga roa i te 80°C. |
| Te kawe wera | 0.15~0.25 W/m · K |
| Ihirangi totoka | 40%~50% |
| Te matotoru | 1000~3000 mPa · s (25°C) |
| Rahi o te matūriki | 100-200 µm |