Kev tsom xam ntawm PVC kev lag luam saw thiab kev lag luam outlook

Kev tsom xam ntawm PVC kev lag luam saw thiab kev lag luam outlook
Polyvinyl chloride (PVC) yog ib qho ntawm tsib lub hom phiaj dav dav.Nws yog tsim los ntawm dawb radical polymerization ntawm vinyl chloride monomers.Kev siv ntawm PVC nyob rau qib thib peb ntawm tsib lub hom phiaj dav dav.Raws li ib qho tseem ceeb ntawm kev lag luam tshuaj lom neeg yav tom ntej, PVC yog thawj zaug tshuaj xyuas hauv daim ntawv no.Qhov thib ob, daim ntawv cog lus tseem ceeb ntawm PVC tau ntsib kev poob qis txij li lub Rau Hli, thiab tau nkag mus rau theem ntawm kev sib koom ua ke ntau.Qhov kev thov sab yog tseem nyob rau hauv lub xeev tsis muaj zog muaj tiag.Lub caij nyoog siab tshaj plaws nyob rau lub Cuaj Hli tau dhau mus, thiab qhov kev thov nce ntxiv hauv Lub Kaum Hli yuav tsum tau txheeb xyuas.Yog tias qhov kev thov nce ntxiv hauv Lub Kaum Hli ua rau muaj qhov tsis txaus ntseeg ntawm cov khoom muag, thiab qhov kev cia siab rov qab los ntawm tus nqi ntawm calcium carbide ntawm tus nqi yuav coj kev txhawb nqa hauv qab, PVC yuav tsum tau txais kev txhawb nqa.Ushered nyob rau hauv ib tug me me rebound.Txawm li cas los xij, cov khoom siv PVC tam sim no muaj ntau lub peev xwm tsim tawm tshiab hauv lub quarter thib plaub.Yog tias qhov kev thov sab tsis pom qhov kev txhim kho tseem ceeb, cov khoom muag zoo li yuav nyob twj ywm rau theem siab, thiab PVC yuav tswj xyuas qhov ua haujlwm tsis muaj zog.

01. PVC kev lag luam saw - raw khoom kawg

Ua ntej tshaj plaws, cov lus qhia luv luv rau polyvinyl chloride, polyvinyl chloride (Polyvinyl Chloride, PVC luv luv), yog cov hmoov tsis muaj tshuaj lom, tsis muaj ntxhiab tsw dawb nrog tshuaj lom neeg ruaj khov thiab zoo plasticity.Raws li txoj kev tau txais vinyl chloride monomer, nws tuaj yeem muab faib ua calcium carbide method, ethylene method thiab imported (EDC, VCM) monomer method (ethylene method and the imported monomer method is commonly referred to as the ethylene method), ntawm uas ethylene txoj kev yog feem ntau nyob rau hauv lub ntiaj teb no., kuv lub teb chaws yog tsuas yog raws li calcium carbide txoj kev PVC, qhov feem ntawm PVC ua los ntawm calcium carbide txoj kev account rau ntau tshaj 70%.Vim li cas peb lub teb chaws txawv ntawm cov txheej txheem kev tsim khoom thoob ntiaj teb PVC?

Los ntawm cov txheej txheem ntau lawm, calcium carbide (CaC2, calcium carbide yog ib qho tseem ceeb ntawm cov khoom siv raw, feem ntau yog siv los tsim cov roj acetylene. Nws kuj tseem siv rau hauv cov organic synthesis, oxyacetylene welding, thiab lwm yam) nyob rau hauv cov txheej txheem calcium carbide account rau txog. 70% ntawm cov nqi tsim khoom, Ib qho ntawm cov khoom siv tseem ceeb ntawm calcium carbide, orchid, yog ua los ntawm cov thee.Lub teb chaws muaj cov yam ntxwv ntawm cov thee nplua nuj, cov roj tsis zoo thiab cov roj me me.Yog li ntawd, cov txheej txheem tsim khoom hauv tsev PVC yog tsim los ntawm calcium carbide.Nws tseem tuaj yeem pom los ntawm cov qauv ntawm calcium carbide tus nqi thiab cov nqi PVC hauv tsev uas yog cov khoom siv tseem ceeb ntawm PVC, tus nqi sib raug zoo ntawm ob yog siab heev.

Thoob ntiaj teb, txoj kev roj thiab cov nkev roj (ethylene txoj kev) feem ntau yog siv, yog li tus nqi thiab cov nqi lag luam tsis sib xws.

Txawm hais tias kuv lub teb chaws muaj txoj cai tiv thaiv kev pov tseg ntawm PVC, cov neeg tsim khoom hauv tsev tseem tuaj yeem siv txoj kev ethylene los tsim PVC los ntawm kev yuav cov roj av, ethylene thiab VCM monomers.Cov txheej txheem ntau lawm PVC muaj ntau txoj hauv kev rau nws tus nqi.Raws li txoj cai, kev hloov pauv ntawm cov nqi ntawm cov roj crude thiab ethylene ntawm cov khoom siv raw thaum kawg ntawm cov txheej txheem ethylene yuav cuam tshuam rau kev txaus siab ntawm cov tuam txhab PVC hauv tsev los ntawm cov txheej txheem calcium carbide.

02. PVC kev lag luam saw - downstream noj

Raws li qhov xav tau, cov khoom siv hauv qab PVC tuaj yeem muab faib ua ob hom: cov khoom tawv thiab cov khoom muag muag.Cov khoom tsis zoo muaj xws li cov yeeb nkab fittings, profiled qhov rooj thiab qhov rais, cov ntaub ntawv nruj thiab lwm yam ntaub ntawv.Ntawm lawv, cov kav dej thiab cov profiles yog qhov tseem ceeb tshaj plaws kev xav tau, suav txog ntau dua 50%.Raws li qhov tseem ceeb tshaj plaws hauv qab dej, qhov kev thov rau cov kav dej yog loj hlob sai.Kev ua vaj tse thiab kev tsim vaj tse Kev lag luam kev txiav txim siab yog siab, thiab kev siv cov khoom siv PVC tau nce ntau.Cov khoom muag muag suav nrog cov ntaub ntawv npog hauv pem teb, cov yeeb yaj kiab, cov ntaub ntawv cable, tawv tawv, khau thiab cov ntaub ntawv ib leeg, thiab lwm yam. Nyob rau hauv xyoo tas los no, cov khoom xa tawm rau PVC flooring tau nce, uas tau dhau los ua cov kev taw qhia tshiab rau PVC thov kev loj hlob.Hais txog qhov kev thov davhlau ya nyob twg, vaj tse tau dhau los ua qhov tseem ceeb tshaj plaws ntawm kev lag luam hauv tebchaws uas cuam tshuam rau PVC, suav txog ze li 50%, ua raws li kev tsim kho vaj tse, cov khoom siv ruaj khov, cov khoom siv pov tseg thiab kev ua liaj ua teb.

03. Kev Lag Luam Outlook

Los ntawm qhov kev xav ntawm kev lag luam saw, ntawm cov khoom siv raw, tam sim no tus nqi ntawm thermal thee thiab xiav carbon yog nyob rau theem siab, thiab lawv poob rau lub caij ntuj no.Yog hais tias lub caij ntuj no txias dua, cov nqi ntawm thermal thee thiab xiav carbon yuav nce siab, uas yuav ua rau tus nqi ntawm calcium carbide nce siab.Tam sim no, tus nqi ntawm calcium carbide yog deviating los ntawm tus nqi ntawm thermal thee thiab xiav carbon, feem ntau vim hais tias cov nqes hav PVC nqi ntawm calcium carbide tsis muaj zog.Tam sim no, cov tuam txhab calcium carbide tau maj mam nce lawv cov kev poob qis hauv cov nqi siab.Lub zog sib cog lus ntawm cov tuam txhab calcium carbide yog txwv, tab sis nyob rau hauv rooj plaub ntawm kev nthuav dav ntawm kev lag luam poob, qhov ua tau ntawm calcium carbide Hoobkas xa khoom ntawm tus nqi siab nce.Qhov no tseem muab cov nqi them nyiaj hauv qab rau cov nqi PVC.

Nyob rau hauv lub quarter thib plaub, cov khoom siv rov qab yuav tsum muaj zog.Nyob rau hauv lub quarter thib plaub, yuav muaj 1.5 lab tshiab PVC muaj peev xwm, ntawm cov uas 1.2 lab yog qhov tseeb.400,000 tons ntawm cov peev txheej tshiab yuav raug tso tawm;nyob rau hauv tas li ntawd, Jintai muaj 300,000 tons ntawm lub sij hawm ntau lawm yog tseem tsis paub meej, feem ntau, lub siab ntawm PVC mov nyob rau hauv lub quarter thib plaub yog kuj loj.

Qhov tsis muaj zog qhov tseeb ntawm qhov kev thov sab thiab kev tiv thaiv lub caij nyoog siab yog cov laj thawj tseem ceeb rau cov nqi PVC tsis muaj zog.Saib rau pem hauv ntej rau kev ua lag luam, lub caij nyoog siab tshaj plaws ntawm PVC tsoos kub xav tau dhau lawm.Txawm hais tias qhov kev thov nyob rau lub Cuaj Hli tau zoo dua, nws tseem qis dua qhov xav tau.Kev thov tau ntsib qhov kev sim rau lub Kaum Hli.Yog tias qhov kev thov txhim kho thiab cov nqi hauv qab tau txais kev txhawb nqa, PVC yuav rov zoo dua me ntsis.Txawm li cas los xij, ua ke nrog kev nce ntau hauv kev tsim khoom hauv lub quarter thib plaub thiab cov khoom siv loj, nws xav tias PVC yuav tuav lub zog ua haujlwm tsis muaj zog.