PVC cob
Muaj 4 hom PVC Resin pawg los ntawm txoj kev polymerization
1. Kev ncua qib PVC
2. Emulsion Qib PVC
3. Bulk Polymerised PVC
4. Copolymer PVC
Kev ncua qib PVC
Hom dav dav tshaj plaws, Kev ncua qib PVC yog tsim los ntawm polymerizing tee ntawm Vinyl Chloride monomer tshem tawm hauv dej.Thaum Polymerisation tiav lawm, cov slurry yog centrifuged thiab PVC ncuav mog qab zib yog maj mam qhuav los ntawm cov cua kub tshwj xeeb kom tsis txhob raug cov resin unstabilized rau tshav kub degradation.Particle loj ntawm cov resin ranges ntawm 50-250 microns thiab muaj cov paj kws zoo li cov qauv uas nkag tau yooj yim absorbs Plasticisers.Cov qauv ntawm PVC hais tuaj yeem hloov kho los ntawm kev xaiv cov neeg ua haujlwm tshem tawm thiab Polymerisation Catalyst.Cov khoom ntxeem tau tsawg dua yog siv dav rau cov ntim siab nruj lossis tsis muaj PVC daim ntaub ntawv xws li PVC Pipes, Qhov rai, Sidings, Ductings.Cov qib kev ncua ntawm cov coarser particle loj thiab cov qauv porous heev nqus cov khoom loj ntawm Plasticiser ua cov ziab ziab ntawm qhov kub thiab txias li 80oC.Qhov ntau cov ntxeem tau siv rau hauv cov ntawv siv plasticised xws li Cables, Tawv, Mos Calendered Sheeting thiab Films thiab lwm yam.
PVC emulsion qib
Emulsion Polymerised PVC yog dab tsi Paste Qib Resin yog thiab qhov no yuav luag tsuas yog siv rau Plastisols.Paste qib resin yog qhov zoo heev particle loj PVC ua los ntawm cov tshuaj tsuag kom qhuav ib qho Emulsion ntawm PVC hauv Dej zoo li yuav ua li cas cov kua mis ua.Paste qib resin xav tau ntau lub zog los tsim thiab muaj txiaj ntsig ntau dua li Suspension resin.Lub paste qib resin nqa cov tshuaj emulsifying thiab catalysts nrog nws.Nws yog li ntawd tsawg dua ntshiab dua Suspension Polymerized lossis Bulk Polymerized PVC.Cov khoom siv hluav taws xob ntawm Cov Tshuaj Txhuam Qib Resin plastisols yog li ntawd tsis zoo dua li Suspension Resin Compounds.Clarity tsis zoo dua li Suspension lossis Bulk PVC.Paste qib resin yog compact hauv cov qauv, thiab tsis nqus Plasticiser ntau ntawm chav tsev kub.Qhov kub siab tshaj 160-180oC yog xav tau los tsav cov yas rau hauv Resin thaum kho.Paste qib Resin feem ntau siv rau Cushion Vinyl Floorings ntawm qhov dav dav.Cov khaubncaws sab nraud povtseg ntawm cov txheej txheem tshwj xeeb yog coated rau ntawm lub substrate tsim nyog (Direct Txheej) lossis ntawm Daim Ntawv Tso Tawm (Hloov txheej).Cov txheej yog fused tsis tu ncua nyob rau hauv qhov cub ntev thiab dov li tom qab tso tawm daim ntawv yog stripped.Rolled zoo flooring muaj peev xwm muaj ib tug tawv semitransparent hnav khaubncaws sab nraud povtseg thiab foamed khaubncaws sab nraud povtseg uas zaum nyob rau sab saum toj ntawm lub hauv paus tsho loj heev los tsim cov thickness.Ntau yam ntxim nyiam thiab nplua nuj muaj peev xwm ua tau thiab cov no sawv cev rau qhov kawg ntawm Vinyl Flooring.
Polymerized PVC ua npuas ncauj
Bulk Polymerisation muab daim ntawv purest ntawm PVC resin li tsis muaj emulsifying los yog tshem tawm cov neeg sawv cev siv.Lawv tsuas yog siv rau hauv daim ntawv thov pob tshab.Lawv feem ntau yog tsim muaj nyob rau hauv qis K tus nqi, raws li Unplasticised PVC Foils rau Blister Ntim thiab lwm yam Calendered / Extruded Transparent films yog ua tiav zoo tshaj plaws los ntawm cov qib K nqi qis.Kev kho kom zoo nyob rau hauv Suspension resin thev naus laus zis tau dhau los ntawm Bulk PVC yav dhau los.
Copolymer PVC
Vinyl Chloride yog copolymerized nrog comonomers zoo li Vinyl acetate muab ntau yam resins nrog cov khoom tshwj xeeb.PVAc lossis Copolymer ntawm Vinyl Chloride thiab Vinyl acetate yog qhov tseem ceeb tshaj plaws.Qhov zoo solubility hauv cov kuab tshuaj ntawm PVAc ua rau nws yog qhov kev xaiv tseem ceeb rau Vinyl Printing Inks thiab hnyav cements.Muaj ib daim ntawv thov tshwj xeeb ntawm PVAc hauv pem teb pobzeb thiab nws yog cov resin ntawm kev xaiv rau Vinyl Asbestos vuas.Cov Resin tiag tiag yog ib qho binder es tsis yog cov khoom tseem ceeb.Nrog Copolymer Resin nws muaj peev xwm tsim cov vuas hauv pem teb nrog Fillers xws li Asbestos thiab Calcium Carbonate accounting rau ntau li 84% nrog Copolymer thiab lwm yam additives tsawg li 16%.Cov qib siab zoo li no tsis tuaj yeem ua tau nrog Suspension resin vim nws cov viscosity yaj ntau dua thiab tsis tuaj yeem tsho thiab encapsulate xws li qib siab ntawm inert muab tub lim.Cov tsheb ciav hlau tshwj xeeb yog xav tau rau Vinyl asbestos vuas.Txawm li cas los xij nrog Asbestos poob tawm qhov kev nyiam, cov khoom lag luam tau maj mam tuag.
Post lub sij hawm: Apr-07-2022