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Tsebo ea Rubber III: Rubber ea Styrene-Butadiene (SBR)

2025-08-12

Rubber ea Styrene-Butadiene (SBR ka bokhutšoanyane) ke rabara ea maiketsetso e entsoeng ka copolymerization ea styrene le butadiene. Ke e 'ngoe ea lirabara tsa maiketsetso tse sebelisoang haholo lefatšeng ka bophara, e ikarabellang bakeng sa tlhahiso eohle ea rabara ea maiketsetso e fetang 50%. Thepa ea eona e pakeng tsa rabara ea tlhaho (NR) le rabara ea butadiene (BR), 'me e tsebahala ka ho hanyetsa ho tsofala ha eona hantle, litšenyehelo tse tlase le botsitso bo phahameng.

Ntlhaho

Flijo

Papiso le rabara ea tlhaho (NR)

Khanyetso ea ho khohlela

E betere ho feta NR, e loketse maemo a ho thulana ho hoholo (joalo ka ho hatakela mabili)

Ho hanyetsa ho tsofala ha NR ho fokola haholo.

Akhanyetso

Ho hanyetsa li-antioxidant le ozone ho feta NR (ka lebaka la boteng ba masale a benzene)

NR e sekametse ho tsofalang 'me e hloka ho eketsoa ha lintho tse thibelang botsofali.

Ho tenyetseha le ho hlahisa mocheso

Ho tenyetseha ho tlase hanyane ho feta ha NR, mme tlhahiso ya mocheso o matla e phahame haholo (foromo e hloka ho ntlafatswa)

NR e na le ho tenyetseha ho hoholo le tlhahiso e tlase ea mocheso.

Lkhanyetso ea mocheso o tlase

 

Mocheso o tlase o etsa hore e be thata (ha boemo bo ntse bo mpefala, sekgahla sa styrene se eketseha).

Mocheso o tlase o etsa hore e be thata. (Styrene NR e na le khanyetso e betere ea serame (-50°C e lula e tenyetseha))

Ho khomarela rabara

Ho ikgomarela ho fokolang; ho hloka tshebediso ya resin e eketsang sekgomaretsi.

NR e na le litšobotsi tse ntle tsa ho itšoarella.

Litšenyehelo

tlase

E phahameng (e angoa ke boemo ba leholimo)

Rabara ea styrene-butadiene e na le boemo ba bohlokoa indastering ea mabili, e fa mabili matla a ho hanyetsa ho tsofala, thepa ea ho thibela botsofali le ho tšoara hantle. Ho feta moo, e sebelisoa haholo ho: likarolo tsa likoloi (litiiso, li-shock absorbers, jj.), lihlahisoa tsa indasteri (mabanta a tsamaisang thepa, Lesale la ho Tiisas, jj.), thepa ea kaho (maqephe a sa keneleng metsi), lisebelisoa tsa bongaka (liphaephe tsa rabara tsa bongaka, liatlana, jj.), likhomaretsi le lipente, jj.

Bahlahisi ba ka sehloohong ba lefats'e: Sinopec, PetroChina, Lanxess, Trinseo, Asahi Kasei, jj.

Mefuta ea lihlahisoa e kenyelletsa li-O-rings le lintho tse entsoeng ka mokhoa o ikhethileng bakeng sa bareki.