Siv SBS ua cov khoom tseem ceeb los tshuaj xyuas cov khoom sib xyaw ua ke thiab lawv cov qauv. Siv ib qho kev sib tov sib xyaw kom ntxiv ib qho kev faib ua feem ntawm masterbatch rau lub reactor, cua sov thiab sib tov nrog ntau yam matrix bitumens ntawm txog 160 ° C, thiab ua tus masterbatch los ntawm cov txheej txheem granulation.
Txij li thaum polymer-hloov bitumen yuav tsum tau siv cov cuab yeej tshwj xeeb xws li loj colloid mills rau kev ua, thiab tsuas yog cov polymers yog siv los muab hloov bitumen, feem ntau yog ib tug yooj yim lub cev sib tov, thiab tsis muaj tshuaj bonding ntawm lub polymer modifier thiab matrix. bitumen. Kev ruaj ntseg ntawm kev sib xyaw ua ke tsis zoo, thiab cov cuab yeej sib xyaw ua ke ntawm SBS thiab kev sib xyaw ua ke sib xyaw ua kom SBS hloov kho bitumen masterbatch txhim kho cov viscosity ntws tus cwj pwm ntawm ib qho kev hloov kho SBS thiab txo qhov kub ntawm qhov viscosity txaus cheeb tsam ntawm cov masterbatch. , qhov sib xyaw kub yog txo los ntawm 180 ~ 190 ℃ mus rau 160 ℃, thiab kev siv cov khoom siv sib xyaw ua ke tuaj yeem ua tau raws li qhov sib txawv ntawm qhov sib txawv thiab sib xyaw ntawm polymer thiab bitumen, yog li txo cov khoom nruj thiab txuag nqi ntau lawm.
Refined styrene + refined tov + refined butadiene + antioxidant → polymerization → cov tshuaj tiv thaiv sib xyaw → tom qab ua tiav, ntim