Main Classification ntawm Pvc
Dec 17, 2022| Raws li qhov sib txawv ntawm daim ntawv thov, PVC tuaj yeem muab faib ua: dav dav PVC cob, qib siab ntawm polymerization PVC resin, cross-linked PVC resin. Universal PVC cob yog tsim los ntawm polymerization ntawm vinyl chloride monomer nyob rau hauv qhov kev txiav txim ntawm pib; PVC resin nrog qib siab ntawm polymerization yog hais txog cov resin polymerized los ntawm kev ntxiv cov saw loj hlob hauv cov yas chloride monomer polymerization system; Crosslinked PVC resin yog polymerized los ntawm kev ntxiv tus neeg sawv cev crosslinking uas muaj dienes thiab polyenes hauv vinyl chloride monomer polymerization system.
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 thiab imported monomer method feem ntau hu ua ethylene method).
Raws li cov txheej txheem polymerization, PVC tuaj yeem muab faib ua plaub pawg: tshem tawm PVC, tshuaj pleev xim PVC, ntau PVC thiab tshuaj PVC. Suspension PVC yog ntau yam loj tshaj plaws, suav txog li 80 feem pua ntawm tag nrho cov zis ntawm PVC. Suspension PVC muab faib ua rau hom raws li qhov tseeb viscosity: XS-1, XS-2... XS-6; XJ-1,XJ-2……,XJ-6. Lub ntsiab lus ntawm txhua tsab ntawv hauv tus qauv: X-txheej txheem txheej txheem; S-loj hom; J-Tight type.
Raws li cov ntsiab lus ntawm plasticizer, PVC yas olefin plastics feem ntau muab faib ua: tsis yog yas PVC, cov ntsiab lus plasticizer yog 0; Rigid PVC nrog plasticizer cov ntsiab lus tsawg dua 10 feem pua; Semi rigid PVC nrog cov ntsiab lus yas ntawm 10-30 feem pua ; Mos PVC nrog cov ntsiab lus yas ntawm 30-70 feem pua ; Cov ntsiab lus ntawm plasticizer hauv PVC paste yas yog ntau tshaj 80 feem pua.