Inkqubo yokuvelisa ibhitumene elungisiweyo ye-SBS kunye nobume bobugcisa
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Inkqubo yokuvelisa ibhitumene elungisiweyo ye-SBS kunye nobume bobugcisa
Ixesha lokukhupha:2024-06-21
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Ngokuqhelekileyo, ukuguqulwa kwe-bitumen ye-SBS kufuna iinkqubo ezintathu: ukudumba, ukucheba (okanye ukucola), kunye nophuhliso.
Kwinkqubo yebhitumene elungisiweyo ye-SBS, kukho ubudlelwane obusondeleyo phakathi kokudumba nokuhambelana. Ubungakanani bokuvuvukala buchaphazela ngokuthe ngqo ukuhambelana. Ukuba i-SBS idumba ngokungapheliyo kwi-bitumen, inkqubo iyahambelana ngokupheleleyo. Ukuziphatha kokuvuvukala kuhambelana ngokusondeleyo kwimveliso, iteknoloji yokucubungula kunye nokuzinza kokugcinwa kobushushu obuphezulu be-bitumen eguquliweyo. Njengoko iqondo lokushisa linyuka, izinga lokukhukhuma likhawuleza kakhulu, kwaye ukudumba kubonakala kwiqondo lokushisa elinyibilikayo elingaphezulu kweqondo lokushisa leglasi ye-PS ye-SBS. Ukongezelela, ukwakhiwa kwe-SBS kunempembelelo ebalulekileyo ekuziphatheni kokuvuvukala: isantya sokuvuvukala kwe-SBS eneenkwenkwezi sihamba kancinci kune-SBS yomgca. Ubalo olufanelekileyo lubonisa ukuba ukuxinana kwamacandelo okudumba kwe-SBS kugxininiswe phakathi kwe-0.97 kunye ne-1.01g/cm3, ekufutshane noxinano lwe-phenols enuka kamnandi.
Ukucheba linyathelo eliphambili kuyo yonke inkqubo yohlengahlengiso, kwaye isiphumo sokucheba sihlala sichaphazela isiphumo sokugqibela. I-colloid mill ngundoqo wesixhobo sebhitumene esilungisiweyo. Isebenza kwindawo yobushushu obuphezulu kunye nesantya esiphezulu. Umaleko wangaphandle we-colloid mill yisakhiwo sejacket kunye nenkqubo yokufakelwa kokujikeleza. Ikwadlala indima yokufunxa umothuko kunye nokunciphisa ingxolo. Ngaphakathi kwi-colloid mill yi-disc ehambayo ye-annular kunye ne-annular fixed disc kunye nenani elithile leendawo zokubeka izinyo zisetyenziselwa ukugaya iimela. Umsantsa unokulungiswa. Ukufana kobungakanani bezinto eziphathekayo kunye nefuthe le-peptization lichongwa ngobunzulu kunye nobubanzi beendawo zokubeka izinyo, inani leemela ezibukhali, kunye nomsebenzi othile wokwenza isakhiwo. igqitywe ngummandla. Njengoko ipleyiti ehambayo ijikeleza ngesantya esiphezulu, i-modifier ichithwa ngokuqhubekayo ngokucheba okuqinileyo kunye nokungqubana, ukugaya iinqununu zibe ngamaqhekeza amancinci, kunye nokwenza inkqubo ezinzileyo ye-miscible kunye ne-bitumen ukufezekisa injongo yokudibanisa okufanayo. Emva kokuvuvukala okupheleleyo, i-SBS kunye ne-bitumen zixutywe ngokulinganayo. Amancinci amancinci okugaya, iqondo eliphezulu lokusasazeka kwe-SBS kwi-bitumen, kunye nokusebenza kakuhle kwe-bitumen elungisiweyo. Ngokuqhelekileyo, ukuze kuphunyezwe iziphumo ezingcono, ukugaya kunokwenziwa ngamaxesha amaninzi.
Ukuveliswa kwebhitumene elungisiweyo ekugqibeleni kuhamba kwinkqubo yophuhliso. Emva kokugaya, i-bitumen ingena kwi-tank yemveliso egqityiweyo okanye itanki yophuhliso. Iqondo lokushisa lilawulwa kwi-170-190 ° C, kwaye inkqubo yophuhliso iqhutyelwa ixesha elithile phantsi kwesenzo somxube. Kule nkqubo, uhlobo oluthile lwe-bitumen stabilizer luhlala ludityaniswa ukuze kuphuculwe ukuzinza kwe-bitumen eguquliweyo. Ubume bangoku be-SBS iteknoloji yokuvelisa ibhitumene elungisiweyo
. I-China ivelisa malunga nezigidi ezisi-8 zeetoni zebhitumene elungisiweyo ye-SBS yeendlela minyaka le, kwaye eyona mveliso igqwesileyo kunye nobuchwephesha bokusebenzisa iseTshayina. Zilumkele iipropaganda ezibubuxoki nezigqwethekileyo ezivela kudidi lwe-comprador;
2. Emva kweminyaka engama-60 yophuhliso, iteknoloji ye-bitumen eguquliweyo ye-SBS ifikelele kwisilingi kweli nqanaba. Ngaphandle kokuphumelela kwenguqu, akusayi kubakho teknoloji iseleyo;
Okwesithathu, akukho nto ngaphezu kohlengahlengiso oluphindaphindiweyo kunye nokuxubana kwezilingo zezixhobo ezine: i-bitumen yesiseko, i-modifier ye-SBS, ioli yokuxuba (ioli emnandi, ioli yokwenziwa, ioli ye-naphthenic, njl.), kunye ne-stabilizer;
3. Ukuqhuba imoto yodidi akunanto yakwenza nezakhono zokuqhuba. Izixhobo ezithunyelwa kwamanye amazwe kunye nezixhobo eziphezulu azibonakalisi izinga lobuchwepheshe be-bitumen elungisiweyo. Ubukhulu becala, babonisa nje inkunzi. Ngokubhekiselele kwizikhombisi ezizinzileyo, ngakumbi ukuqinisekisa izalathi ezitsha ezisemgangathweni zobugcisa, imveliso yasimahla yokugaya njengeRizhao Keshijia inokuqinisekiswa ngakumbi;
4. Amashishini karhulumente afana noTyalo-mali noLawulo loNxibelelwano lwePhondo alungiselele ukuveliswa nokusetyenzwa kwebhitumene elungisiweyo ye-SBS, kwaye ingakarhulumente. Isikali sikhulu. Ukongeza ekukhuphisaneni ngengeniso nabantu, abanakumela imveliso eqhubela phambili okanye entsha;
5. Kukho imfuneko engxamisekileyo yokuphuhlisa iteknoloji yokubeka iliso kwi-intanethi kunye nezixhobo zokwenza inkqubo ibe nokulawulwa;
6. Kwimarike yoLwandle oluBomvu, inzuzo ayinakugcinwa, nto leyo eye yavelisa ezininzi iinguqulelo ze "trinitrile amine".