SBS (styrene-butadiene-styrene) Poly (styrene-butadiene-styrene) los yog SBS, yog cov roj hmab tawv uas siv los hloov asphalt, los ua cov khau khau, lub log tsheb, thiab lwm qhov chaw uas muaj kev ruaj ntseg tseem ceeb.Nws yog ib hom copolymer hu ua block copolymer.Nws txoj hlua caj dab yog tsim los ntawm peb ntu.Thawj yog cov saw ntev ntawm polystyrene, nruab nrab yog cov saw ntev ntawm polybutadiene, thiab ntu kawg yog lwm ntu ntev ntawm polystyrene.Polystyrene yog cov yas tawv tawv, thiab qhov no muab SBS nws cov kav ntev.Polybutadiene yog rubbery, thiab qhov no muab SBS nws cov khoom zoo li roj hmab.Tsis tas li ntawd, polystyrene chains zoo li clump ua ke.Thaum ib pawg styrene ntawm ib pawg SBS molecule koom nrog ib pawg, thiab lwm cov polystyrene saw ntawm tib lub SBS molecule koom nrog lwm pawg, cov pawg sib txawv tau khi ua ke nrog cov hlua khi polybutadiene.Qhov no muab cov khoom muaj peev xwm khaws nws cov duab tom qab ncab
Post lub sij hawm: Aug-17-2022