Pampiri ena e hlahloba kamoo li-stabilizer tsa mocheso li amang lihlahisoa tsa PVC kateng, li shebane leho hanyetsa mocheso, ho sebetsa habonolo, le ho pepenenengKa ho sekaseka lingoliloeng le data ea liteko, re hlahloba likamano lipakeng tsa li-stabilizer le resin ea PVC, le kamoo li bopang botsitso ba mocheso, boiketlo ba tlhahiso, le litšobotsi tsa optical.
1. Selelekela
PVC ke thermoplastic e sebelisoang haholo, empa ho se tsitse ha eona mochesong ho fokotsa ts'ebetso.Li-stabilizer tsa mochesofokotsa ho senyeha ha mocheso o phahameng mme hape e ama bokgoni ba ho sebetsa le ho pepeneneng—e leng sa bohlokwa bakeng sa ditshebediso tse kang dipakete le difilimi tsa meralo.
2. Ho Hanela Mocheso ha Li-Stabilizer ho PVC
2.1 Mekhoa ea ho Tsitsisa
Li-stabilizer tse fapaneng (tse thehiloeng ho loto,calcium - zinki, organotin) sebelisa mekhoa e fapaneng:
E thehiloe ho moetapele: E arabela le liathomo tsa Cl tse nang le labile ka har'a liketane tsa PVC ho theha metsoako e tsitsitseng, e thibelang ho senyeha.
Khalsiamo - zinki: Kopanya asiti – ho tlama le radical – ho tlosa dintho tse senyehileng.
Organotin (thini ea methyl/butyl): Kopanya le liketane tsa polymer ho thibela ho tlosoa ha chlorine 'meleng, ho thibela ho senyeha ha 'mele ka katleho.
2.2 Ho Lekola Botsitso ba Thermal
Liteko tsa tlhahlobo ea Thermogravimetric (TGA) li bontša hore PVC e tsitsitseng ea organotin e na le mocheso o phahameng oa ho senyeha ha pele ho feta litsamaiso tsa khale tsa calcium le zinc. Leha li-stabilizer tse thehiloeng ho loto li fana ka botsitso ba nako e telele lits'ebetsong tse ling, matšoenyeho a tikoloho/bophelo bo botle a thibela ts'ebeliso.
3. Litlamorao tsa Ts'ebetso
3.1 Phallo e Qhibilihang le ho Tjhesa
Li-stabilizer li fetola boitšoaro ba ho qhibiliha ha PVC:
Khalsiamo - zinki: E ka eketsa ho qhibilihisa ha metsi, ea sitisa ho bōptjoa ha lintho tse tsoang/tse entsoeng ka ente.
Organotin: Fokotsa ho teteana bakeng sa ts'ebetso e boreleli, e tlase - e loketseng mela e lebelo le phahameng.
E thehiloe ho moetapele: Phallo e itekanetseng ea ho qhibiliha empa lifensetere tse patisaneng tsa ts'ebetso ka lebaka la poleiti - likotsi li tsoa.
3.2 Ho tlotsa le ho lokolla hlobo
Li-stabilizer tse ling li sebetsa e le litlolo:
Metswako ya calcium – zinki hangata e kenyelletsa mafura a ka hare ho ntlafatsa ho lokollwa ha hlobo ka hara ente.
Li-stabilizer tsa Organotin li matlafatsa ho lumellana ha PVC - ho eketsa, ka tsela e sa tobang ho thusa ho sebetsa hantle.
4. Tšusumetso Ponaletsong
4.1 Tšebelisano le Sebopeho sa PVC
Ponaletso e itšetlehile ka ho hasana ha stabilizer ho PVC:
Li-calcium tse nyenyane tse hasantsoeng hantle, tse nang le likaroloana tse nyane, tse matlafatsang zinki li fokotsa ho hasana ha leseli, li boloka khanya e hlakile.
Li-stabilizer tsa Organotinkopanya ka har'a liketane tsa PVC, ho fokotsa ho sotha ha mahlo.
Li-stabilizer tse thehiloeng ho loto (likaroloana tse kholo, tse sa ajoang ka ho lekana) li baka ho hasana ha leseli le leholo, li fokotsa ponaletso.
4.2 Mefuta ea Sehatsetsi le Ponaletso
Lithuto tsa papiso li bontša:
Lifilimi tsa PVC tse tsitsitseng tsa Organotin li fihlella phetiso ea leseli ea > 90%.
Li-calcium - zinki tse matlafatsang li hlahisa ~ phetiso ea 85–88%.
Li-stabilizer tse thehiloeng ho loto li sebetsa hampe le ho feta.
Liphoso tse kang "mahlo a tlhapi" (tse amanang le boleng/ho hasana ha stabilizer) le tsona li fokotsa ho hlaka—li-stabilizer tsa boleng bo holimo li fokotsa mathata ana.
5. Qetello
Li-heat stabilizers li bohlokoa bakeng sa ts'ebetso ea PVC, ho bopa ho hanyetsa mocheso, ho sebetsa habonolo le ho pepeneneng:
E thehiloe ho moetapele: E fana ka botsitso empa e tobana le khanyetso ea tikoloho.
Khalsiamo - zinki: Tikoloho – e mosa empa e hloka ntlafatso ya bokgoni ba ho sebetsa/ho pepeneneng.
Organotin: E sebetsa hantle ka mahlakoreng 'ohle empa e tobana le mathata a litšenyehelo/taolo libakeng tse ling.
Diphuputso tsa nakong e tlang di lokela ho ntshetsa pele di-stabilizer tse leka-lekanyang botsitso, bokgoni ba ho sebetsana le dintho, le boleng ba mahlasedi ho fihlela ditlhoko tsa indasteri.
Nako ea poso: Phuptjane-23-2025