Xabagta PVC
Waxaa jira 4 nooc oo ah xabagta PVC oo lagu kooxeeyay habka polymerization
1. Fasalka Laalista PVC
2. Emulsion Fasalka PVC
3. Bulk Polymerised PVC
4. Copolymer PVC
Joojinta darajada PVC
Nooca ugu baahsan, heerka laaliyeynta PVC waxaa lagu sameeyaa polymerization dhibco ah Vinyl Chloride monomer oo ku xayiran biyaha.Marka Polymerisation la dhammeeyo, slurry-gu waa la centrifused oo keega PVC si tartiib ah ayaa loo qalajiyey nidaamyada kuleyliyaha gaarka ah si aysan ugu dhicin resinka aan xasilloonayn si uu u kululeeyo.Cabbirka qayb ka mid ah resinku wuxuu u dhexeeyaa 50-250 microns wuxuuna leeyahay salool dalool leh sida dhismayaal si sahal ah u nuuga caagadaha.Qaab dhismeedka qaybaha PVC waxaa wax laga beddeli karaa iyadoo la dooranayo wakiillada laalista ku habboon iyo Polymerisation Catalyst.Noocyo dalool yar ayaa si weyn loogu isticmaalaa codsiyada PVC ee adag ama aan balaastik ahayn sida tuubbooyinka PVC, Daaqadaha, Sidings, Ductings.Darajooyinka laalista ee cabbirka walxaha qalafsan iyo qaab-dhismeedyada aadka u daloola waxay nuugaan tiro badan oo Plasticiser ah oo samaynaysa isku-darka qallalan ee heerkulku u hooseeya 80oC. Noocyada daloola badan ayaa loo isticmaalaa codsiyada caaga ah sida fiilooyinka, kabaha, xaashida caleenta jilicsan iyo filimada iwm.
Emulsion darajada PVC
Emulsion Polymerised PVC waa waxa uu yahay Paste Grade Resin kanina waxa si gaar ah loogu isticmaalaa Plastisols.Xabagta darajada koodhka ah waa cabbir aad u fiican oo PVC ah oo ay soo saarto buufinta Emulsion ee PVC ee Biyaha ku jira si aad u la mid ah sida budada caanaha loo soo saaro.Xabagta darajada koojadu waxay u baahan tahay tamar badan si ay u soo saarto oo aad uga qaalisan resinka Hakinta.Xabagta darajada koollada waxa ay sidataa kiimikooyinka emulsifying iyo kicinta.Sidaa darteed way ka nadiifsan tahay ka-hakinta Polymerized ama Bulk Polymerized PVC.Sifooyinka Korontada ee plastisols-ka xajista darajada koodhka ayaa sidaa awgeed aad uga liidata marka loo eego Compounds Resin Suspension.Caddayntu way ka liidataa ka joojinta ama PVC-ga badan.Xabagta darajada koodhka ah ayaa qaabaysan, mana nuugo balaastiig badan heerkulka qolka.Heerkulka ka sarreeya 160-180oC ayaa loo baahan yahay si balaastiga loogu kaxeeyo xabagta inta lagu jiro daaweynta.Xabagta darajada koodhka waxa si weyn loogu isticmaalaa Dabaqa Vinyl-ka ee Barkinta ballaca ballaadhan.Lakabyo kala duwan oo koollada si gaar ah loo habeeyey ayaa lagu dahaadhay mid ku habboon substrate (Daahfur toos ah) ama warqadda Siideynta (daahan wareejinta).Lakabyada waxay si joogto ah ugu darsamaan foornooyinka dhaadheer waxaana la duubaa ka dib marka warqadda la sii daayo laga saaro.Dabaqyada wanaagsan ee duuban waxay yeelan karaan lakab adag oo daboolan oo daboolan lakabyo daabacan iyo kuwo xumbo leh kuwaas oo ku fadhiya dusha sare ee jaakadaha saldhig ee aadka loo buuxiyey si loo dhiso dhumucda.Saameyn badan oo aad u soo jiidasho leh oo qani ah ayaa suurtagal ah kuwaasna waxay matalaan dhamaadka sare ee Dabaqa Vinyl.
PVC-polymerized badan
Polymerisation Bulk wuxuu bixiyaa qaabka ugu saafisan ee xabagta PVC maadaama aan la isticmaalin wax-soo-saarid ama wakiilo ka-joojin ah.Inta badan waxaa loo adeegsadaa codsiyo hufan.Inta badan waxaa lagu diyaariyaa kooxaha qiimaha hoose ee K, maadaama aan balaastik ahayn ee PVC Foils oo loogu talagalay Baakadaha Fiican iyo filimaanta kale ee Daah-furnaanta ah ee Kalandarka/Baraxsan ayaa sida ugu wanaagsan looga soo baaraandegay darajooyinka Qiimaha K hoose.Dib-u-habaynta tignoolajiyada resin-ka-hakinta ayaa meesha ka saartay Bulk PVC waayadii la soo dhaafay.
Copolymer PVC
Vinyl Chloride waxaa lagu koobiyeeyay koonomers sida Vinyl acetate oo siinaya noocyo kala duwan oo resins leh sifooyin gaar ah.PVAc ama Copolymer ee Vinyl Chloride iyo Vinyl acetate ayaa ah kuwa ugu muhiimsan.Ku milanka wanaagsan ee dareerayaasha PVAc ayaa ka dhigaya doorashada ugu muhiimsan ee Khadadka Daabacaadda Vinyl iyo sibidhka dareeraha ah.Waxaa jira codsi gaar ah oo PVAc ah oo ku yaal foornada sagxadda oo waa xabagta doorashada ee foornada Vinyl Asbestos.Resinku dhab ahaantii waa xidhe halkii uu ka ahaan lahaa qaybta ugu muhiimsan.Iyada oo la adeegsanayo Copolymer Resin waxa suurtogal ah in lagu soo saaro sagxadaha sagxadaha leh Fillers sida Asbestos iyo Calcium Carbonate xisaabinta ugu badnaan 84% iyada oo Copolymer-ka iyo waxyaabaha kale ee isku dhafan ay hoos ugu hooseeyaan 16%.Heerarka sare ee noocan oo kale ah suurtagal maahan resin Suspension sababtoo ah dhalaalkiisu aad ayuu u sarreeyaa oo ma dabooli karo oo ma dabooli karo heerka sare ee buuxinta aan shaqaynayn.Tareenada wacitaanada gaarka ah ayaa looga baahan yahay taayirada Vinyl asbestos.Si kastaba ha ahaatee iyada oo Asbestos ay hoos u dhacday, alaabada noocan oo kale ah ayaa si tartiib tartiib ah u da'day.
Waqtiga boostada: Abriil-07-2022