styrene ntchito polima

Styrene ndi organic organic liquid hydrocarbon yomwe imapangidwa makamaka kuchokera ku mafuta a petroleum pambuyo pa njira ya distillation ya fractional kuti atenge olefins ndi aromatics ofunikira kuti mankhwala apange Styrene.Zomera zambiri zamafuta a petrochemical ndizofanana ndi chithunzi chakumanja.Zindikirani ndime yayikulu yowongoka yomwe imatchedwa gawo la distillation.Apa ndipamene zigawo za petroleum zimatenthedwa mpaka kutentha kwambiri chifukwa chilichonse mwazinthu zazikuluzikulu zimakhala ndi mfundo zowira zosiyanasiyana motero zimawalekanitsa molondola kwambiri.

Styrene ndi zomwe zimadziwika m'magulu a chemistry ngati monomer.Zomwe ma monomers akupanga "maketani" komanso kuthekera kolumikizana ndi mamolekyu ena ndizofunikira pakupanga Polystyrene.Mamolekyu a styrene amakhalanso ndi gulu la vinyl (ethenyl) lomwe limagawana ma elekitironi munjira yomwe imadziwika kuti covalent bonding, izi zimalola kuti zipangidwe kukhala mapulasitiki.Nthawi zambiri, styrene amapangidwa munjira ziwiri.Choyamba, alkylation wa benzene (unsaturated hydrocarbon) ndi ethylene kupanga ethylbenzene.Aluminium chloride catalyzed alkylation imagwiritsidwabe ntchito muzomera zambiri za EB (ethylbenzene) padziko lonse lapansi.Izi zikachitika, EB imayikidwa mu njira yolondola kwambiri ya dehydrogenation podutsa EB ndi nthunzi pamwamba pa chothandizira monga iron oxide, aluminium chloride, kapena posachedwapa, ndondomeko yothandizira bedi ya zeolite kuti mupeze mawonekedwe oyera kwambiri a Styrene.Pafupifupi ethylbenzene yonse yomwe imapangidwa padziko lonse lapansi imagwiritsidwa ntchito popanga styrene.Kupita patsogolo kwaposachedwa pakupanga Styrene kwawonjezera njira zomwe Styrene angapangire.Njira imodzi makamaka amagwiritsa ntchito Toluene ndi Methanol m'malo mwa EB.Kutha kugwiritsa ntchito zakudya zosiyanasiyana kumapangitsa Styrene kukhala chida chotsika mtengo.

Kuyeretsa Mafuta - Kwachidule komanso Chokoma

• Mafuta ophikira amatenthedwa ndikusandulika kukhala nthunzi.
• Nthunzi yotentha imakwera pamwamba pa gawo logawanitsa.
• Mzerewu umatentha pansi ndipo umazizira kwambiri kumtunda.
• Pamene mpweya uliwonse wa hydrocarbon ukukwera ndikuzizira mpaka kuwira, umafupika ndikupanga madzi.
• Zigawo zamadzimadzi (magulu a ma hydrocarbon okhala ndi mfundo zowira zofanana) amatsekeredwa m'mathireyi ndipo amachotsedwa.

Styrene ndiyonso yofunika kwambiri mu ma Polymers awa:

• Polystyrene
• EPS (Polistyrene Yowonjezera)
• SAN (Styrene Acrylonitrile Resins)
• Mtengo wa SB Latex
• ABS (Acrylonitrile Butadiene Styrene Resins)
• SB Rubber (Styrene-butadiene kuyambira 1940's)
• Thermoplastic Elastomers (thermoplastic rubber)
• MBS (Methacrylate Butadiene Styrene Resins)