Chidziwitso cha Rubber III: Rubber ya Styrene-Butadiene (SBR)
Mphira wa Styrene-Butadiene (SBR) ndi mphira wopangidwa ndi copolymerization ya styrene ndi butadiene. Ndi imodzi mwa mphira zopangidwa ndi anthu ambiri padziko lonse lapansi, zomwe zimapangitsa kuti pakhale 50% ya mphira yonse yopangidwa. Kapangidwe kake kali pakati pa mphira wachilengedwe (NR) ndi mphira wa butadiene (BR), ndipo umadziwika kuti ndi wolimba kwambiri, wotsika mtengo, komanso wokhazikika.
| Nchilengedwe | Fchakudya | Kuyerekeza ndi mphira wachilengedwe (NR) |
| Kukana kwa kukwiya | Yabwino kuposa NR, yoyenera pazochitika zokangana kwambiri (monga matayala opondapo) | Kukana kwa NR ndi kochepa. |
| Akukana | Kukana kwa antioxidant ndi ozoni ndikwabwino kuposa NR (chifukwa cha kukhalapo kwa mphete za benzene) | NR imakonda kukalamba ndipo imafuna kuwonjezera mankhwala oletsa kukalamba. |
| Kukhazikika ndi Kutentha | Kutanuka kwake kuli kotsika pang'ono poyerekeza ndi kwa NR, ndipo mphamvu yopangira kutentha imakhala yokwera (njirayi iyenera kukonzedwa bwino) | NR ili ndi kusinthasintha kwabwino komanso kutentha kochepa. |
| Lkukana kutentha pang'ono
| Kutentha kochepa kumapangitsa kuti ikhale yolimba (mkhalidwewo ukaipiraipira, kuchuluka kwa styrene kumakhala kwakukulu). | Kutentha kochepa kumapangitsa kuti ikhale yolimba. (Styrene NR imapirira kuzizira bwino (-50°C imakhala yosinthasintha)) |
| Kumata kwa rabara | Kudzigwira koipa; kumafuna kugwiritsa ntchito utomoni wowonjezera wa guluu. | NR ili ndi mphamvu zabwino kwambiri zodzimatira. |
| Mtengo | pansi | Zapamwamba (zokhudzidwa ndi nyengo) |
Rabala ya Styrene-butadiene ili ndi udindo waukulu mumakampani opanga matayala, kupatsa matayala mphamvu zotha kutopa, zoletsa kukalamba komanso kugwira bwino ntchito. Kuphatikiza apo, imagwiritsidwa ntchito kwambiri mu: zida zamagalimoto (zosindikizira, zoziziritsa kukhosi, ndi zina zotero), zinthu zamafakitale (malamba onyamula katundu, Mphete Yotsekeras, ndi zina zotero), zipangizo zomangira (mapepala osalowa madzi), zipangizo zachipatala (machubu a rabara azachipatala, magolovesi, ndi zina zotero), zomatira ndi zokutira, ndi zina zotero.
Opanga opanga akuluakulu padziko lonse lapansi: Sinopec, PetroChina, Lanxess, Trinseo, Asahi Kasei, ndi ena.
Mitundu ya zinthu ndi monga mphete za O ndi zinthu zopangidwa mwamakonda kwa makasitomala.