SBS modified asphalt siv asphalt asphalt raw khoom, ntxiv ib feem ntawm SBS modifier, thiab siv shearing, stirring thiab lwm txoj kev kom tusyees disperse SBS nyob rau hauv asphalt. Nyob rau tib lub sijhawm, ib qho kev faib ua feem ntawm cov stabilizer tshwj xeeb yog ntxiv los ua ib qho kev sib xyaw SBS. cov khoom siv, siv lub cev zoo ntawm SBS los hloov asphalt.
Kev siv cov kev hloov pauv hloov pauv asphalt muaj keeb kwm ntev thoob ntiaj teb. Nyob rau hauv nruab nrab-19th caug xyoo, txoj kev vulcanization tau siv los txo qhov kev nkag mus ntawm asphalt thiab ua rau kom qhov muag muag. Txoj kev loj hlob ntawm kev hloov kho asphalt hauv 50 xyoo dhau los tau kwv yees li ntawm plaub theem.
(1) 1950-1960, ncaj qha sib tov roj hmab hmoov lossis latex rau hauv asphalt, sib tov sib npaug thiab siv;
(2) Txij xyoo 1960 txog xyoo 1970, styrene-butadiene hluavtaws roj hmab tau muab sib xyaw thiab siv rau ntawm qhov chaw hauv daim ntawv latex hauv kev faib ua feem;
(3) Los ntawm 1971 txog 1988, ntxiv rau kev siv txuas ntxiv ntawm cov roj hmab hluavtaws, thermoplastic resins tau dav siv;
(4) Txij li thaum xyoo 1988, SBS tau maj mam dhau los ua cov khoom hloov kho.
Cov keeb kwm luv luv ntawm kev txhim kho ntawm SBS hloov asphalt:
★ Lub ntiaj teb kev tsim khoom lag luam ntawm SBS cov khoom lag luam tau pib xyoo 1960s.
★ Xyoo 1963, American Philips Petroleum Company tau siv txoj kev sib txuas los tsim cov kab SBS copolymer thawj zaug, nrog lub npe lag luam Solprene.
★ Xyoo 1965, Lub Tuam Txhab American Shell tau siv cov thev naus laus zis tsis zoo ion polymerization thiab cov txheej txheem pub mis peb-kauj ruam los tsim cov khoom zoo sib xws thiab ua tiav cov khoom lag luam, nrog rau lub npe lag luam Kraton D.
★ Xyoo 1967, lub tuam txhab Dutch Philips tau tsim lub hnub qub (lossis radial) SBS khoom.
★ Xyoo 1973, Philips tau tsim lub hnub qub SBS khoom.
★ Xyoo 1980, Lub Tuam Txhab Firestone tau tshaj tawm SBS cov khoom npe hu ua Streon. Cov khoom lag luam styrene khi cov ntsiab lus yog 43%. Cov khoom lag luam muaj qhov ntsuas kub siab thiab feem ntau yog siv rau kev hloov kho yas thiab kub yaj nplaum nplaum. Tom qab ntawd, Nyiv lub tuam txhab Asahi Kasei, Ltalis lub Tuam Txhab Anic, Belgium's Petrochim Company, thiab lwm yam kuj tau ua tiav cov khoom lag luam SBS.
★Tom qab nkag mus rau xyoo 1990, nrog rau kev nthuav dav ntawm SBS daim ntawv thov kev lag luam, lub ntiaj teb SBS ntau lawm tau tsim sai heev.
★ Txij li thaum xyoo 1990, thaum cov nroj tsuag hluavtaws ntawm Baling Petrochemical Company hauv Yueyang, Hunan Province tau tsim lub teb chaws thawj SBS cov cuab yeej tsim khoom nrog cov khoom tsim tawm txhua xyoo ntawm 10,000 tons siv cov thev naus laus zis ntawm Beijing Yanshan Petrochemical Tuam Txhab Tshawb Fawb Lub Tuam Txhab, Tuam Tshoj SBS muaj peev xwm ntau lawm. .