Muri rusange, sbs guhindura bitumen bisaba inzira eshatu: kubyimba, guhinga (cyangwa gusya), no guteza imbere.
Kuri SBS yahinduye gahunda ya bitumen, hari umubano wa hafi uri hagati yo kubyimba no guhuza. Ingano yo kubyimba bigira ingaruka ku buryo butaziguye. Niba SBS ibyimba bitagira akagero muri bitumen, sisitemu iba ifitanye isano rwose. Imyitwarire yo kubyimba ifitanye isano rya bugufi no gukora, gutunganya ikoranabuhanga no kubika ubushyuhe bwinshi bwa bitumen. Mugihe ubushyuhe bwiyongera, igipimo cyihuta cyihuta cyane, kandi kubyimba biragaragara kumubumba wo gutunganya ibinyabiziga bishonga hejuru yubushyuhe bwinzibacyuho ya PS ya SBS. Byongeye kandi, imiterere ya SBS ifite ingaruka zikomeye kumyitwarire yo kubyimba: umuvuduko mwinshi wa sbs-sbs zitinda kurenza iyo mirongo ya sbs. Kubara bifatika byerekana ko ubucucike bwibice bya SBS bwibanda kuri 0.97 na 1.01G / CM3, ari hafi yubucucike bwa fenol nziza.

Gutontoma nintambwe yingenzi muburyo bwo guhindura, kandi ingaruka zo gukinisha akenshi zigira ingaruka kubisubizo byanyuma. Urusyo rwa Colloid nibanze yibikoresho bya bitumen byahinduwe. Ikora mubushyuhe bwinshi kandi bwihuse-bwihuse. Igice cyo hanze cyimisozi ya colloid nimiterere ya jacket hamwe na sisitemu yo kwishyuza. Ifite kandi uruhare rwo kwinjiza hamwe no kugabanya urusaku. Imbere muri parile ya Colloid ni disiki yimuka zumwaka hamwe na disiki ihamye hamwe numubare runaka winyoni zikoreshwa mugusya ibyuma. Ikinyuranyo kirashobora guhinduka. Ubusambanyi bwibikoresho bifatika hamwe ningaruka zo gukurikiranwa byimbitse n'ubugari bwinyoni, umubare wo gutyaza ibyuma, hamwe numurimo wihariye wo gukora imiterere. bigenwa n'akarere. Nkuko isahani yimuka izunguruka kumuvuduko mwinshi, igahinduka gucika intege no kugongana gukomeye no kugongana, gusya ibice byiza, kandi bigakora sisitemu idahwitse hamwe na bitumen kugirango ugere ku ntego yo kuvanga kimwe. Nyuma yo kubyimba byuzuye, sbs na bitumen bivanze neza. Gitoya Gusya, urwego rwo hejuru rwo gutanya kwa SBS muri bitumen, kandi nibyiza imikorere ya bitumen. Mubisanzwe, kugirango ugere kubisubizo byiza, gusya birashobora gukorwa inshuro nyinshi.
Umusaruro wa bitumen wahinduwe amaherezo unyura mubikorwa byiterambere. Nyuma yo gusya, bitumen yinjiye muri tank yarangiye cyangwa ikigega cyiterambere. Ubushyuhe bugenzurwa na 170-190 ° C, hamwe nuburyo bwo guteza imbere bikorwa mugihe runaka munsi yibikorwa bya Mixer. Muri iki gikorwa, ubwoko bumwebumwe bwa bitumen bwahinduwe akenshi bwongerwaho kugirango ateze imbere ibikabutatu bya bitumen. Imiterere ya SBS yahinduwe tekinoroji ya bitumen

1. Ubushinwa butanga toni zigera kuri miliyoni 8 za SBS zahinduwe bitumen kumihanda buri mwaka, kandi ikoranabuhanga ryiza nikoranabuhanga ni mubushinwa. Witondere poropagande y'ibinyoma kandi igoretse ku ishuri rya Comprador;
2. Nyuma yimyaka 60 yiterambere, Ikoranabuhanga rya SBS ryahinduye bitumen ryageze kuri gisenge kuri iki cyiciro. Nta materahamwe y'impinduramatwara, nta tekori ikora isigaye;
Icya gatatu, ntakindi kirenze guhinduka no kuvanga ibikoresho bine: Bise ya Base, SBS ihinduranya, amavuta meza, Amavuta ya Naphheretic, nibindi
3. Gutwara imodoka nziza ntaho bihuriye nubuhanga bwo gutwara. Urusyo rwatumijwe mu mahanga n'ibikoresho byo hejuru ntibigaragaza urwego rwa Tutumen tekinoroji yatumen. Ku rugero runini, barimo kwerekana gusa umurwa mukuru. Ukurikije ibipimo bihagaze, cyane cyane kwemeza ibipimo bishya bya tekiniki, umusaruro usya nka rizhao keshijia birashobora kwishingirwaho;
4. Ibigo bya Leta nk'itumanaho nk'imari y'imari n'igenzura byateguye umusaruro no gutunganya SBS byahinduwe bitumen, kandi byabaye ibyabaye. Igipimo ni kinini. Usibye guhatanira inyungu hamwe nabantu, ntibashobora guhagararira umusaruro wateye imbere cyangwa mushya;
5. Harakenewe byihutirwa guteza imbere ikoranabuhanga hamwe nibikoresho byo gukurikirana kugirango dukore inzira igenzurwa;
6. Ku isoko ryinyanja ritukura, inyungu ntizishoboka, ritabyaye Amine nyinshi "Trinitrile Amine".