Muri rusange, SBS guhindura bitumen bisaba inzira eshatu: kubyimba, kogosha (cyangwa gusya), niterambere.
Kuri SBS yahinduwe bitumen sisitemu, hariho isano ya hafi hagati yo kubyimba no guhuza. Ingano yo kubyimba igira ingaruka itaziguye. Niba SBS yabyimbye bitagira ingano muri bitumen, sisitemu ihinduka rwose. Imyitwarire yo kubyimba ifitanye isano rya hafi nogukora, tekinoroji yo gutunganya hamwe nubushyuhe bwo hejuru bwo kubika bitumen yahinduwe. Mugihe ubushyuhe bwiyongereye, umuvuduko wo kubyimba wihuta cyane, kandi kubyimba kugaragara kubushyuhe bwo gutunganya gushonga hejuru yubushyuhe bwikirahure bwa PS ya SBS. Mubyongeyeho, imiterere ya SBS igira ingaruka zikomeye kumyitwarire yo kubyimba: umuvuduko wo kubyimba kwinyenyeri imeze nka SBS itinda kurenza iyumurongo wa SBS. Ibiharuro bifitanye isano byerekana ko ubucucike bwibibyimba bya SBS byibanze hagati ya 0,97 na 1.01g / cm3, hafi yubucucike bwa fenomasi.
Kogosha nintambwe yingenzi mubikorwa byose byo guhindura, kandi ingaruka zo kogosha akenshi zigira ingaruka kubisubizo byanyuma. Urusyo rwa colloid nurufatiro rwibikoresho byahinduwe. Ikorera mubushyuhe bwo hejuru kandi bwihuta cyane. Igice cyo hanze cyurusyo rwa colloid nuburyo bwa jacket hamwe na sisitemu yo kuzenguruka. Ifite kandi uruhare rwo gukurura no kugabanya urusaku. Imbere y'urusyo rwa colloid ni Disiki yimuka ya buri mwaka hamwe na disiki ya buri mwaka ihamye hamwe numubare runaka w'amenyo akoreshwa mu gusya ibyuma. Icyuho kirashobora guhinduka. Uburinganire bwubunini bwibintu ningaruka za peptisation bigenwa nuburebure nubugari bwinyo yinyo, umubare wibyuma bikarishye, nakazi kihariye ko gukora imiterere. bigenwa n'akarere. Mugihe isahani yimuka izunguruka kumuvuduko mwinshi, modifier ikomeza gukwirakwizwa nogosha gukomeye no kugongana, gusya ibice mo ibice byiza, no gukora sisitemu ihamye itemewe na bitumen kugirango igere kumigambi yo kuvanga kimwe. Nyuma yo kubyimba byuzuye, SBS na bitumen bivanze neza. Gutoya gusya ibice, niko urwego rwo gukwirakwiza SBS muri bitumen, kandi nibikorwa byiza byahinduwe na bitumen. Mubisanzwe, kugirango tugere kubisubizo byiza, gusya birashobora gukorwa inshuro nyinshi.
Umusaruro wa bitumen yahinduwe amaherezo unyura mubikorwa byiterambere. Nyuma yo gusya, bitumen yinjira mubicuruzwa byarangiye cyangwa ikigega cyiterambere. Ubushyuhe bugenzurwa kuri 170-190 ° C, kandi inzira yiterambere ikorwa mugihe runaka mugikorwa cya mixer. Muri ubu buryo, ubwoko bumwe bwahinduwe bwa bitumen stabilisateur yongeweho kenshi kugirango tunonosore ububiko bwa bitumen yahinduwe. Imiterere yubu ya SBS yahinduye ikoranabuhanga rya bitumen
. Ubushinwa butanga toni zigera kuri miriyoni 8 za SBS yahinduwe bitumen kumihanda buri mwaka, kandi ikoranabuhanga ryiza nogukoresha ni mubushinwa. Witondere kwamamaza ibinyoma kandi bigoretse kuva murwego rwa comprador;
2. Nyuma yimyaka hafi 60 yiterambere, tekinoroji ya SBS yahinduwe bitumen igeze hejuru kuriki cyiciro. Hatabayeho iterambere ryimpinduramatwara, nta tekinoroji izasigara;
Icya gatatu, ntakindi kirenze guhindurwa kenshi no kugerageza kuvanga ibikoresho bine: bitumen fatizo, moderi ya SBS, kuvanga amavuta (amavuta ya aromatiya, amavuta ya sintetike, amavuta ya naftenique, nibindi), na stabilisateur;
3. Gutwara imodoka nziza ntaho bihuriye nubuhanga bwo gutwara. Inganda zitumizwa mu mahanga n'ibikoresho byo mu rwego rwo hejuru ntabwo byerekana urwego rw'ikoranabuhanga ryahinduwe. Ahanini, barerekana gusa igishoro. Kubireba ibipimo bihamye, cyane cyane kugirango tumenye ibipimo ngenderwaho bishya bya tekiniki, umusaruro udafite urusyo nka Rizhao Keshijia urashobora kwizerwa cyane;
4. Ibigo bya leta nkishoramari n’itumanaho mu Ntara byateguye gukora no gutunganya biti yahinduwe na SBS, kandi byari ibya Leta. Igipimo ni kinini. Usibye guhatanira inyungu hamwe nabantu, ntibashobora guhagararira umusaruro wateye imbere cyangwa mushya;
5. Harakenewe byihutirwa guteza imbere tekinoroji yo kugenzura kumurongo nibikoresho kugirango inzira igenzurwe;
6. Ku isoko ryinyanja Itukura, inyungu ntishobora kuramba, ibyo bikaba byaratumye habaho impinduka nyinshi "trinitrile amine".