Styrene ndi yofunika madzi mankhwala zopangira.Ndi monocyclic onunkhira hydrocarbon ndi alkene mbali unyolo ndipo anapanga conjugate dongosolo ndi benzene mphete.Ndi membala wosavuta komanso wofunikira kwambiri wamafuta onunkhira a unsaturated.Styrene imagwiritsidwa ntchito kwambiri ngati zopangira popanga ma resin opangidwa ndi mphira.
Styrene ndi chinthu chofunika kwambiri chamadzimadzi chamadzimadzi, cha monocyclic onunkhira hydrocarbon yokhala ndi alkene mbali ya alkene ndikupanga makina osakanikirana ndi mphete ya benzene.Ndiwonunkhira wonunkhira bwino wa hydrocarbon styrene "wokhala ndi malasha amafuta ndikulumikiza mphira ndi pulasitiki", ndipo ndiwofunikira kwambiri pamakampani a petrochemical.Mtsinje wolunjika wa styrene ndi benzene ndi ethylene, ndipo kumunsi kwa mtsinjewu ndi wamwazikana.Zogulitsa zazikulu zomwe zikukhudzidwa ndi thovu la polystyrene, polystyrene, utomoni wa ABS, mphira wopangira, unsaturated polyester resin ndi styrene copolymers, ndipo terminal imagwiritsidwa ntchito makamaka mu pulasitiki ndi zinthu zopangidwa ndi mphira.
2010 dziko styrene kupanga mphamvu kukula, kwambiri pamene kuwonjezeka pafupifupi 2.78 miliyoni matani kupanga mphamvu, zokolola kukula pafupi 10%, makamaka dziko makamaka mu China kuti mankhwala kunsi kwa styrene (chomaliza ntchito m'nyumba zipangizo, galimoto ndi zomangira mafakitale) kumwa, zomwe mu 2009 ndi 2010, kufunika kwa China kwa styrene kunali pamwamba pa 15%.Pambuyo pa 2010, kukula kwa styrene kupanga mphamvu padziko lonse lapansi kunachepa pang'onopang'ono, ndipo pofika kumapeto kwa 2017, mphamvu yapadziko lonse lapansi yopanga styrene inafika matani 33.724 miliyoni.
Kuthekera kwapadziko lonse lapansi kupanga masitayilo kumakhazikika ku East Asia, North America ndi Western Europe, komwe kumapangitsa 78.9% ya mphamvu zopanga styrene padziko lonse lapansi.Kuphatikiza apo, dera la Asia-Pacific limapanga 52 peresenti ya mphamvu zopanga masitayilo padziko lonse lapansi.
Kufuna kwapansi kwa styrene kumamwazikana, ndipo zomaliza zimakhala zapulasitiki komanso mphira wopangira.
Kuchokera pakufunika kwapadziko lonse kwa styrene mu 2016, 37.8% styrene amapaka polystyrene, 22.1% ku polystyrene yotulutsa thobvu, 15.9% ku ABS resin, 9.9% mpaka styrene butadiene rabara, 4.8% ku unsaturated resin, ndi zina zotero.
Chifukwa chakuchulukirachulukira kwa zida zatsopano zapakhomo, kuchuluka kwa ma styrene ku China komanso kudalira kotengera kunja kwatsika pang'onopang'ono m'zaka zaposachedwa.
Malinga ndi deta yamilandu, mu 2018, mayiko akuluakulu aku China omwe amalowetsa styrene ndi Saudi Arabia, Japan, South Korea, Singapore, ndi zina zotero. Chaka cha 2017 chisanafike, gwero lalikulu la styrene linali South Korea, Saudi Arabia ndi United States, ndi South Korea. gwero lalikulu kwambiri logulitsira kunja.
Kuyambira pa Juni 23, 2018, Unduna wa Zamalonda ku China wakhazikitsa ntchito zoletsa kutaya kutaya kuyambira 3.8% mpaka 55.7% pamitengo yochokera ku Republic of Korea ndi United States kwa zaka zisanu, zomwe zidapangitsa kuchepa kwakukulu kwa chiwerengero cha katundu China kuchokera Republic of Korea mu theka lachiwiri la 2018, ndi Saudi Arabia ndi Japan kukhala gwero maiko gwero.
Ndi kupanga kwambiri zoyenga zapanyumba zapanyumba, kuchuluka kwazinthu zatsopano zopangira ma styrene kudzayamba kugwira ntchito ku China mtsogolomo.
M'nthawi ya "13th Year-Fin Plan", China idalimbikitsa ntchito zoyenga zapanyumba komanso kuphatikiza ma petrochemical.Pakalipano, Hengli, Sheng ndi mapulojekiti ena mamiliyoni khumi oyenga ndi kuphatikiza mafuta a petrochemical avomerezedwa kuti alowe mu nthawi yomangamanga, ndipo mabizinesi akuluakulu oyenga ndi mafuta a petrochemical amathandizira zipangizo zapansi pa styrene.
Nthawi yotumiza: Sep-19-2022