Liphaephe tsa Polyvinyl chloride (PVC) li fetohile motheo oa mekhoa ea morao-rao ea mehaho, kaho le lisebelisoa tsa lipeipi tsa metsi, tse nkoang e le tsa bohlokoa bakeng sa ho tšoarella ha tsona, ho khoneha le ho ikamahanya le maemo. Boleng ba liphaephe tsena bo itšetlehile haholo ka mofuta oa resin ea PVC e sebelisoang ha li etsoa.
Tataisong ena e felletseng, re tla shebana le lefats'e la li-resin tsa PVC, re hlahlobe lintlha tsa bohlokoa tseo u ka li nahanang ha u khetha resin e ntle ka ho fetisisa bakeng sa tlhahiso ea liphaephe tsa boleng bo holimo.
Lintlha tse Susumetsang Khetho ea Resin ea PVC
Ho khetha resin e nepahetseng ea PVC bakeng sa tlhahiso ea liphaephe ho kenyelletsa ho nahanisisa ka lintlha tse 'maloa, ho kenyelletsa:
Boima ba Molek'hule: Boima ba limolek'hule tsa resin ea PVC e bapala karolo ea bohlokoa ho lekanyeng matla a tšusumetso ea phala, ho satalla le ts'ebetso ka kakaretso. Li-resin tse phahameng tsa boima ba limolek'hule hangata li lebisa liphaepheng tse nang le matla a matla a ho hanyetsa le ho tiea.
Melt Flow Index (MFI): MFI e bontša ho phalla ha resin nakong ea ts'ebetso ea extrusion. MFI e loketseng e netefatsa extrusion e boreleli, boholo ba liphaephe tse ts'oanang, le mefokolo e fokotsehileng ea ts'ebetso.
Vicat Softening Temperature (Vicat B): Vicat B e emela mocheso oo resin e qalang ho kokobela tlas'a mojaro. Boleng bo phahameng ba Vicat B bo bontša ho hanyetsa mocheso ho betere le botsitso ba liphaephe.
Li-additives: Li-resin tsa PVC hangata li etsoa ka li-additives ho ntlafatsa thepa ea tsona le litšobotsi tsa ho sebetsa. Li-additives tse tloaelehileng li kenyelletsa li-stabilizers, li-fillers, lubricant, le li-modifiers tsa phello.
Mefuta ea PVC Resin bakeng sa Tlhahiso ea Pipe
Ho ipapisitsoe le lintlha tse boletsoeng ka holimo, li-resin tsa PVC tsa tlhahiso ea liphaephe li ka aroloa ka mefuta e 'meli e meholo:
PVC e emisitsoeng (S-PVC): Li-resin tsa S-PVC li hlahisoa ka mokhoa oa ho emisa polymerization, e leng se hlahisang likaroloana tse chitja tse nang le kabo e pharaletseng ea boima ba limolek'hule. Li fana ka tekanyo e ntle ea matla a tšusumetso, ho satalla, le litšobotsi tsa ts'ebetso.
Emulsion PVC (E-PVC): Li-resin tsa E-PVC li hlahisoa ka mokhoa oa emulsion polymerization, ho fana ka likaroloana tse ntle tse nang le boima bo fokolang ba limolek'hule. Ka kakaretso li bonts'a matla a tšusumetso e phahameng le ho satalla ho tlase ha li bapisoa le li-resin tsa S-PVC.
Ho Khetha Resin e Molemo ka ho Fetisisa bakeng sa Litlhoko tsa Hao
Khetho ea resin e loketseng ka ho fetisisa ea PVC bakeng sa tlhahiso ea liphaephe e itšetlehile ka kopo e khethehileng le thepa e lakatsehang ea pipe. Ka mohlala, liphaephe tse reretsoeng ho sebelisa khatello li hloka li-resin tse nang le boima bo phahameng ba molek'hule le litekanyetso tsa Vicat B ho netefatsa matla a lekaneng le ho hanyetsa mocheso.
Ka lehlakoreng le leng, liphaephe bakeng sa lits'ebetso tse se nang khatello, joalo ka drainage kapa nosetso, li ka etelletsa pele matla a tšusumetso le boiketlo ba ts'ebetso, ho etsa hore li-resin tsa E-PVC e be khetho e nepahetseng.
Qetello
Khetho ea resin ea PVC ke karolo ea bohlokoa ea ho etsa liphaephe tsa boleng bo holimo tsa PVC. Ka ho utloisisa lintlha tsa bohlokoa tse susumetsang khetho ea resin le thepa ea mefuta e fapaneng ea resin, bahlahisi ba liphaephe ba ka etsa liqeto tse nang le tsebo tse ntlafatsang ts'ebetso ea liphaephe le ho fihlela litlhoko tsa lits'ebetso tse fapaneng.
Hopola hore ho buisana le barekisi ba nang le boiphihlelo ba PVC le ho batla tataiso ea tekheniki ho ka ba bohlokoa haholo ha u khetha resin e loketseng litlhoko tsa hau tse khethehileng tsa tlhahiso ea liphaephe.
Nako ea poso: Jul-02-2024