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Ubumenyi bwa Rubber III: Rubber ya Styrene-Butadiene (SBR)

2025-08-12

Umupira wa Styrene-Butadiene (SBR mu magambo ahinnye) ni umupira wa sintetike wakozwe na copolymerization ya styrene na butadiene. Ni imwe mu mipira ya sintetike ikoreshwa cyane ku isi, ikaba irenga 50% by'umusaruro wose wa sintetike. Imiterere yayo iri hagati y'umupira karemano (NR) na butadiene (BR), kandi izwiho kudashira neza, ku giciro gito, no kudahinduka cyane.

Nimiterere

Fkurya

Kugereranya na rabune karemano (NR)

Ubudahangarwa bw'ingufu

Iruta NR, ikwiriye ahantu hashyuha cyane (nk'aho amapine anyura)

Ubudahangarwa bwa NR mu kwangirika kwabwo ni buke cyane.

Akurwanya

Ubudahangarwa bw'ingufu zirwanya ogisijeni n'iza ozone buruta NR (kubera ko hari impeta za benzene)

NR ikunda gusaza kandi isaba kongerwamo imiti irwanya gusaza.

Gukomera no Gutanga Ubushyuhe

Ubushyuhe buri hasi gato ugereranyije n’ubwa NR, kandi uburyo ubushyuhe butera imbere buri hejuru cyane (formula igomba kunozwa)

NR ifite ubushobozi bwo guhindagurika neza kandi ikora ubushyuhe buke.

Lkurwanya ubushyuhe

 

Ubushyuhe buke butuma ikomera (uko ibintu birushaho kuba bibi, niko styrene iba nyinshi).

Ubushyuhe buke butuma ikomera. (Styrene NR ifite ubushobozi bwo kwihanganira ubukonje (-50°C ikomeza koroha))

Gufata neza umugozi

Kwifata nabi; bisaba gukoresha resin itera imbaraga.

NR ifite ubushobozi bwiza bwo kwifata.

Ikiguzi

hasi

Hejuru (byagizweho ingaruka n'ikirere)

Rubber ya Styrene-butadiene ifite umwanya ukomeye mu nganda z'amapine, ituma amapine adashobora kwangirika, arwanya gusaza kandi agafata neza. Byongeye kandi, ikoreshwa cyane mu bice by'imodoka (udupfundikizo, ibikoresho bigabanya impanuka, nibindi), ibicuruzwa by'inganda (imikandara itwara imizigo, Impeta yo gufungas, nibindi), ibikoresho by'ubwubatsi (impapuro zirinda amazi), ibikoresho by'ubuvuzi (imiyoboro ya kabutura yo kwa muganga, uturindantoki, nibindi), kole n'amabara yo gusiga, nibindi.

Abakora ibikomoka ku bimera bakomeye ku isi: Sinopec, PetroChina, Lanxess, Trinseo, Asahi Kasei, n'abandi.

Ubwoko bw'ibicuruzwa burimo impeta za O n'ibintu byakorewe abakiriya.