Polycarbonate(PC) muaj cov carbonate pawg hauv cov saw hlau molecular.Raws li qhov sib txawv ester pawg hauv cov qauv molecular, nws tuaj yeem muab faib ua aliphatic, alicyclic thiab aromatic pawg.Ntawm lawv, cov tshuaj tsw qab muaj txiaj ntsig zoo tshaj plaws.Qhov tseem ceeb tshaj plaws yog bisphenol A polycarbonate, nrog qhov hnyav nruab nrab molecular hnyav (MW) ntawm 200000 txog 100000.

Polycarbonate muaj cov khoom zoo, xws li lub zog, toughness, pob tshab, kub tsis kam thiab txias tsis kam, ua haujlwm yooj yim thiab nplaim hluav taws.Daim ntawv thov kev lag luam tseem ceeb yog cov khoom siv hluav taws xob, cov ntawv hlau thiab tsheb.Peb qhov kev lag luam no suav txog li 80% ntawm kev siv polycarbonate.Lwm yam kev lag luam kuj tau siv dav hauv kev lag luam machinery qhov chaw, CD, ntim, khoom siv hauv chaw ua haujlwm, kev kho mob, zaj duab xis, kev lom zem thiab cov cuab yeej tiv thaiv, thiab tau dhau los ua ib pawg loj tshaj plaws ntawm tsib engineering plastics.
Nrog rau kev nce qib ntawm localization technology, localization ntawm Tuam Tshoj lub PC kev lag luam tau tsim sai heev nyob rau hauv xyoo tas los.Txog thaum kawg ntawm 2022, qhov ntsuas ntawm Tuam Tshoj lub PC kev lag luam tau tshaj 2.5 lab tons / xyoo, thiab cov zis yog kwv yees li 1.4 lab tons.Tam sim no, Tuam Tshoj cov lag luam loj xws li Kesichuang (600000 tons / xyoo), Zhejiang Petrochemical (520000 tons / xyoo), Luxi Chemical (300000 tons / xyoo) thiab Zhongsha Tianjin (260000 tons / xyoo).
Profitability ntawm peb cov txheej txheem PC
Muaj peb txheej txheem ntau lawm rau PC: txheej txheem tsis phosgene, txheej txheem transesterification thiab interfacial polycondensation phosgene txheej txheem.Muaj qhov pom tseeb qhov sib txawv ntawm cov khoom siv raw thiab cov nqi hauv cov txheej txheem tsim khoom.Peb cov txheej txheem sib txawv coj cov txiaj ntsig sib txawv rau PC.
Hauv tsib xyoos dhau los, cov txiaj ntsig ntawm Tuam Tshoj lub PC tau nce siab tshaj plaws hauv xyoo 2018, nce mus txog 6500 yuan / tuj.Tom qab ntawd, cov nyiaj tau los tau qis zuj zus txhua xyoo.Nyob rau xyoo 2020 thiab 2021, vim qhov txo qis ntawm kev noj theem tshwm sim los ntawm kev sib kis, cov txiaj ntsig tau poob qis, thiab cov txheej txheem sib xyaw ua ke phosgene thiab cov txheej txheem tsis yog phosgene pom qhov poob loj.
Thaum kawg ntawm 2022, cov txiaj ntsig ntawm transesterification txoj kev hauv Tuam Tshoj lub PC ntau lawm yog qhov siab tshaj plaws, nce mus txog 2092 yuan / tuj, ua raws li kev sib txuas ntawm polycondensation phosgene txoj kev, nrog cov txiaj ntsig ntawm 1592 yuan / tuj, thaum lub theoretical ntau lawm profit ntawm non phosgene txoj kev. tsuas yog 292 yuan / ton.Hauv tsib xyoos dhau los, txoj kev transesterification yeej ib txwm yog txoj kev tsim khoom muaj txiaj ntsig tshaj plaws hauv Tuam Tshoj cov txheej txheem PC ntau lawm, thaum txoj kev tsis yog phosgene muaj qhov tsis muaj txiaj ntsig zoo tshaj plaws.
Kev tshuaj xyuas ntawm yam cuam tshuam rau PC profitability
Ua ntej, tus nqi hloov pauv ntawm cov khoom siv raw bisphenol A thiab DMC muaj kev cuam tshuam ncaj qha rau PC tus nqi, tshwj xeeb tshaj yog tus nqi hloov pauv ntawm bisphenol A, uas muaj qhov hnyav ntawm ntau dua 50% ntawm PC nqi.
Qhov thib ob, qhov kev hloov pauv ntawm cov neeg siv khoom lag luam, tshwj xeeb tshaj yog cov kev hloov pauv ntawm macroeconomic, muaj kev cuam tshuam ncaj qha rau PC cov neeg siv khoom lag luam.Piv txwv li, thaum lub sijhawm xyoo 2020 thiab 2021, thaum muaj kev sib kis, qhov kev siv ntawm cov neeg siv khoom lag luam ntawm PCs tau poob qis, ua rau muaj kev poob qis hauv PC cov nqi thiab cuam tshuam ncaj qha rau cov txiaj ntsig ntawm PC lag luam.
Xyoo 2022, qhov cuam tshuam ntawm kev sib kis yuav loj heev.Tus nqi ntawm cov roj crude yuav poob mus ntxiv, thiab cov neeg siv khoom lag luam yuav tsis zoo.Feem ntau ntawm Tuam Tshoj cov tshuaj tsis tau mus txog qhov nyiaj tau los ib txwm muaj.Raws li tus nqi ntawm bisphenol A tseem qis, cov nqi tsim khoom ntawm PC yog tsawg.Tsis tas li ntawd, cov dej ntws hauv qab kuj tau rov qab los rau qee qhov, yog li tus nqi ntawm cov txheej txheem ntau lawm ntawm PC tau khaws cia muaj txiaj ntsig zoo, thiab cov txiaj ntsig tau maj mam txhim kho.Nws yog ib yam khoom uas tsis tshua muaj kev vam meej nyob rau hauv Tuam Tshoj txoj kev lag luam tshuaj.Yav tom ntej, kev ua lag luam bisphenol A yuav txuas ntxiv mus qeeb, thiab Lub Caij Nplooj Ntoos Hlav tau los txog.Yog tias kev tswj hwm tus kabmob kis tau raug tso tawm raws li kev xav tau, cov neeg siv khoom xav tau yuav loj hlob nyob rau hauv nthwv dej, thiab qhov chaw nyiaj tau los ntawm PC yuav loj tuaj.