Polybutadiene Rubber (PBR), tseem hu ua cis -1, 4-polybutadiene roj hmab, yog cov roj hmab hluavtaws ua los ntawm polymerizing butadiene. Nws cov qauv molecular yog (C4H6)n, thiab nws muaj cov ntsiab lus cis-structure ntau tshaj 95%, ua rau nws zoo ib yam thiab cov qauv zoo ib yam.
Polymerization txheej txheem ntawm PBR
Kev tsim tawm ntawmPBRFeem ntau nyob ntawm kev xaiv thiab siv cov catalysts. Raws li hom catalyst, PBR tuaj yeem muab faib ua npib tsib xee, cobalt-based, titanium-based, thiab tsis tshua muaj ntiaj teb-raws li (neodymium-based) hom.
Cov khoom thiab qhov zoo ntawm PBR
Piv rau cov roj hmab ntuj (NR) thiab styrene-butadiene roj hmab (SBR), vulcanized PBR muaj ntau yam khoom zoo tshaj:
- Kev tiv thaiv txias txias: Zoo tagnrho rau kev siv hauv qhov chaw qis qis.
- High abrasion tsis kam: Ua kom lub neej ntev ntawm cov khoom zoo li lub log tsheb.
- Superior elasticity: Muab kev txhim kho yooj yim thiab kev ua haujlwm nyob rau hauv kev ntxhov siab dynamic.
- Tsawg tshav kub buildup: Txo lub zog poob thaum siv dynamic.
- Kev laus ua haujlwm zoo: Ua kom lub neej ntev hauv qhov chaw hnyav.
Kev siv ntawm PBR
Ua tsaug rau nws cov khoom tshwj xeeb ntawm lub cev thiab tshuaj lom neeg, PBR tau siv dav hauv ntau yam kev lag luam. Nws muaj kev sib raug zoo nrog lwm cov roj hmab, xws li roj hmab ntuj, neoprene, thiab nitrile roj hmab, ua rau nws muaj ntau yam hauv ntau daim ntawv thov. Common siv muaj xws li:
- Automotive log tsheb: PBR yog cov khoom siv tseem ceeb hauv kev tsim cov log tsheb ruaj khov, hnav-tiv taus.
- Cov khoom tiv thaiv txias: Zoo tagnrho rau cov huab cua txias thiab kev ua haujlwm kub.
- Cov ntaub ntawv muaj: Siv nyob rau hauv kev poob siab-absorbing Cheebtsam thiab cov ntaub ntawv elastic.
- Cov khoom siv: Pom muaj nyob rau hauv cov khau khau, conveyor siv, roj hmab tapes, thiab cov khoom siv roj hmab.
- Los ntawm kev sib txuas ua haujlwm siab, ua haujlwm ntev, thiab kev sib raug zoo, Polybutadiene Rubber (PBR) ua lub luag haujlwm tseem ceeb hauv kev lag luam roj hmab niaj hnub thiab polymer.
