Li-stabilizer tsa mocheso oa PVCli bapala karolo ea bohlokoa ho netefatseng ts'ebetso le ho tšoarella ha liphaephe tsa PVC. Li-stabilizer tsena ke lintho tse ling tse sebelisetsoang ho sireletsa thepa ea PVC ho senyeha ho bakoang ke ho pepesehela mocheso, leseli le oksijene. Sehloohong sena, re tla hlahloba ts'ebeliso ea li-stabilizer tsa mocheso tsa PVC liphaepheng tsa PVC le bohlokoa ba tsona bakeng sa ho boloka boleng ba liphaephe.
PVC, kapa polyvinyl chloride, ke thepa e feto-fetohang e sebelisoang haholo indastering ea kaho bakeng sa lits'ebetso tse fapaneng, ho kenyeletsoa liphaephe, lisebelisoa le likhoerekhoere. Liphaephe tsa PVC li sebelisoa haholo tsamaisong ea phepelo ea metsi, drainage, nosetso le kalafo ea likhoerekhoere ka lebaka la ho tšoarella ha tsona, ho hanyetsa mafome, le bonolo ba ho li kenya. Leha ho le joalo, thepa ea PVC e na le tšekamelo ea ho senyeha ha e pepesetsoa mocheso le khanya, e leng se fellang ka tahlehelo ea matla a mechini le ho fetoha ha 'mala.
Ho hlola phephetso ena, di-stabilizer tsa mocheso tsa PVC di sebediswa ho sireletsa thepa ya PVC ho senyeheng ha mocheso nakong ya tshebetso le bophelo ba tshebeletso ya diphaephe tsa PVC. Morero wa di-stabilizer tsena ke ho thibela dikarabelo tsa tshenyeho tse hlahang ha PVC e pepesetswa mocheso le kganya, ka hona e atolosa bophelo ba tshebeletso ya phaephe le ho boloka thepa ya yona ya mechine.
Ho na le mefuta e mengata ea li-stabilizer tsa mocheso tsa PVC tse sebelisoang bakeng sa liphaephe tsa PVC, ho kenyeletsoa li-stabilizer tse thehiloeng ho loto, li-stabilizer tse thehiloeng ho tin, li-stabilizer tse thehiloeng ho calcium le li-stabilizer tse thehiloeng ho organic. Mofuta o mong le o mong oa stabilizer o na le litšobotsi le melemo ea oona e ikhethang, 'me ho khetha stabilizer e nepahetseng ka ho fetisisa ho latela litlhoko tse khethehileng tsa ts'ebeliso ea hau ea phaephe ea PVC.
Li-stabilizer tse thehiloeng ho loto, tse kang stearate ea lead le sulfate ea trivalent ea lead, li 'nile tsa sebelisoa haholo nakong e fetileng ka lebaka la botsitso ba tsona bo botle ba mocheso le katleho ea litšenyehelo. Leha ho le joalo, ka lebaka la matšoenyeho a tikoloho le bophelo bo botle, linaha tse ngata li khaotse ho sebelisa li-stabilizer tse thehiloeng ho lead 'me tsa li nkela sebaka ka li-stabilizer tse ling.
Li-stabilizer tse thehiloeng ho thini, tse kang dibutyltin dilaurate le tributyltin oxide, li tsebahala ka botsitso ba tsona bo phahameng ba mocheso le ho hlaka, e leng se etsang hore li lokele lits'ebetso moo ho boloka 'mala ho leng bohlokoa. Li-stabilizer tsena li boetse li sireletsa phaephe ea PVC ka katleho ho senyeheng nakong ea ts'ebetso le ho pepesehela kantle.
Li-stabilizer tse thehiloeng ho calcium, tse kang calcium stearate leli-stabilizer tsa zinki tsa calcium, ke mekhoa e meng e seng chefo e sebelisoang ho fapana le li-stabilizer tse thehiloeng ho loto 'me hangata li sebelisoa tlhahisong ea liphaephe tsa PVC bakeng sa metsi a nooang le liphutheloana tsa lijo. Li-stabilizer tsena li na le botsitso bo botle ba mocheso le ho hanyetsa boemo ba leholimo, e leng se etsang hore li lokele ho sebelisoa kantle.
Di-stabilizer tsa tlhaho, tse kang oli ea soya e nang le epoxidized le methyltin mercaptide, li tsoa mehloling ea tlhaho 'me lia tsebahala ka lebaka la thepa ea tsona e mosa tikolohong le e seng chefo. Di-stabilizer tsena li sireletsa liphaephe tsa PVC ka katleho ho senyeheng ha mocheso 'me li loketse lits'ebetso tse nang le melao e thata ea tikoloho.
Nakong ea ts'ebetso ea tlhahiso ea liphaephe tsa PVC, li-stabilizer tsa mocheso tsa PVC li eketsoa ho resin ea PVC nakong ea ts'ebetso ea ho kopanya ho etsa motsoako o ts'oanang. Li-stabilizer li thibela ka katleho liketso tsa ho senyeha tse bakoang ke mocheso le khanya ka ho etsa li-complexes ka liketane tsa polymer tsa PVC. Sena se netefatsa hore phaephe ea PVC e boloka matla a eona a mechini, botsitso ba 'mala le botšepehi ba litekanyo nakong eohle ea ts'ebeletso ea eona.
Nakong ea bophelo ba tšebeletso ea liphaephe tsa PVC, ho pepesehela mabaka a kantle a kang khanya ea letsatsi, ho feto-fetoha ha mocheso, lik'hemik'hale, jj. ho tla potlakisa ho senyeha ha thepa ea PVC. Lisebelisoa tsa ho tsitsisa mocheso tsa PVC li bapala karolo ea bohlokoa ho sireletseng liphaephe linthong tsena tse senyang, ho netefatsa ts'ebetso ea tsona ea nako e telele le botšepehi.
Tšebeliso ea li-stabilizer tsa mocheso tsa PVC e bohlokoa haholo ho boloka boleng le ts'ebetso ea liphaephe tsa PVC. Li-stabilizer tsena li sireletsa thepa ea PVC ho senyeheng ha mocheso 'me li netefatsa hore phaephe e boloka thepa ea eona ea mechini, botsitso ba 'mala le botšepehi ba litekanyo. Ha theknoloji ea stabilizer e ntse e tsoela pele, joale ho na le likhetho tse fapaneng tsa ho fihlela litlhoko tse ikhethileng tsa lits'ebetso tse fapaneng tsa phaephe ea PVC. Ha tlhoko ea liphaephe tsa PVC tsa boleng bo holimo le tse tšoarellang e ntse e tsoela pele ho hola, bohlokoa ba li-stabilizer tsa mocheso tsa PVC indastering ea liphaephe tsa PVC bo ke ke ba feteletsoa.
Nako ea poso: Pherekhong-10-2024