Kev soj ntsuam ntawm txoj kev loj hlob ntawm Tuam Tshoj tus PVC (polyvinyl chloride) kev lag luam nyob rau hauv 2021, lub peev xwm ntau lawm yuav stabilize.

Kev soj ntsuam ntawm txoj kev loj hlob ntawm Tuam Tshoj tus PVC (polyvinyl chloride) kev lag luam nyob rau hauv 2021, lub peev xwm ntau lawm yuav stabilize.

1. Kev nthuav dav ntawm kev txhim kho ntawm kev lag luam PVC

Polyvinyl chloride (PVC) yog ib lub polymer tsim los ntawm polymerization ntawm vinyl chloride monomer (VCM) nyob rau hauv cov pib xws li peroxides thiab azo tebchaw los yog nyob rau hauv qhov kev txiav txim ntawm lub teeb thiab kub raws li lub mechanism ntawm dawb radical polymerization.qeb tseem ceeb.

Polyvinyl chloride resins feem ntau muab faib ua cov hom phiaj dav dav thiab muab tshuaj txhuam raws li lawv siv: cov hom phiaj dav dav (G resins) yog cov resins uas sib xyaw nrog cov khoom siv ib txwm siv los yog cov khoom siv ntxiv rau cov hmoov qhuav lossis ntub dej rau kev ua haujlwm;paste resins (P Resin) feem ntau yog tsim nrog cov yas yas los tsim cov tshuaj pleev xim rau siv;Kuj tseem muaj PVC sib xyaw resin, uas yog PVC resin hloov ib feem ntawm cov tshuaj txhuam los ntawm kev sib xyaw thaum tsim cov PVC plastisol.

Kev faib tawm tseem ceeb ntawm PVC cob

Cov txheej txheem tseem ceeb ntawm PVC resin suav nrog txoj kev raug ncua, txoj kev ntau, txoj kev emulsion, txoj kev daws teeb meem thiab micro-txheej txheem polymerization txoj kev.Los ntawm kev xav thoob ntiaj teb, txoj kev ncua kev ncua yog txoj kev tsim khoom tseem ceeb ntawm PVC cov khoom siv dav dav, thaum cov txheej txheem ntau lawm ntawm PVC muab tshuaj txhuam yog txoj kev emulsion thiab micro-suspension polymerization txoj kev.Vim muaj cov txheej txheem ntau lawm, lub peev xwm ntau lawm ntawm ob lub resins tsis tuaj yeem hloov mus rau ib leeg.

2. Kev lag luam saw ntawm PVC kev lag luam

Cov txheej txheem tsim khoom ntawm PVC feem ntau yog "calcium carbide method" thiab "ethylene method", thiab nws cov ntaub ntawv raw yog thee thiab roj crude feem.Feem ntau lub teb chaws hauv ntiaj teb siv txoj kev roj thiab roj.Vim tias Tuam Tshoj tsis zoo rau cov roj thiab nplua nuj nyob hauv cov thee, kuv lub teb chaws cov txheej txheem tsim khoom PVC feem ntau yog raws li cov txheej txheem calcium carbide.

PVC kev lag luam saw

Cov khoom siv raw rau PVC tsim los ntawm txoj kev calcium carbide yog thee.Txij li xyoo 2012, kuv lub teb chaws cov khoom siv hluav taws xob tsis zoo tau pom qhov sib txawv ntawm thawj zaug poob thiab tom qab ntawd nce.Raws li National Bureau of Statistics, lub teb chaws raw cov thee tso zis yuav ncav cuag 4.13 billion tons hauv 2021, nce 228 lab tons piv nrog 2020.

Cov khoom siv raw rau kev tsim cov PVC los ntawm txoj kev ethylene yog cov roj crude.Raws li National Bureau of Statistics, kuv lub teb chaws yuav tsim tau 198.98 lab tons ntawm cov roj crude nyob rau hauv 2021, nce 4.06 lab tons piv nrog rau 2020. Ntawm lawv, 16.47 lab tons ntawm cov roj crude tau tsim nyob rau lub Kaum Ob Hlis, ib xyoo-rau- xyoo nce ntawm 1.7%.