1) Monya le ho nyenyefatsa HCL, thibela phello ea eona ea auto catalytic.Mofuta ona oa stabilizer o kenyelletsa letsoai la lead, sesepa sa tšepe sa organic acid, metsoako ea organotin, metsoako ea epoxy, matsoai a inorganic le letsoai la thiol.Ba ka sebetsana le HCL mme ba thibela karabelo ea PVC ho tlosa HCL.
2) Ho nkela liathomo tse sa tsitsang tsa chlorine limolek'hule tsa PVC ho thibela ho tlosoa ha HCL.Haeba organic tin stabilizer e hokahana le liathomo tse sa tsitsang tsa chlorine tsa limolek'hule tsa PVC, thini ea tlhaho e tla nkeloa sebaka ke liathomo tse sa tsitsang tsa chlorine 'meleng oa khokahano.
3) Karabelo ea tlatsetso le sebopeho sa polyene e sitisa sebopeho sa sistimi e kholo ea conjugated mme e fokotsa mebala.Unsaturated acid matsoai kapa li-ester li na le li-bond tse peli, tse kenang karabelo ea diene le limolek'hule tsa PVC ka ho kopanya li-bond tse peli, kahoo li senya sebopeho sa tsona se kopantsoeng le ho thibela phetoho ea mebala.
4) Ho nka li-radicals tsa mahala le ho thibela karabelo ea oxidation, stabilizer ena ea mocheso e ka ba le phello e le 'ngoe kapa tse' maloa.
Mocheso o nepahetseng oa mocheso oa PVC e lokela ho ba ntho e sebetsang ka bongata kapa motsoako oa lisebelisoa tse ka finyellang mesebetsi e latelang: pele, nka sebaka sa li-substituent tse sebetsang le tse sa tsitsang;Ea bobeli ke ho monya le ho fokotsa HCL e lokollotsoeng nakong ea ts'ebetso ea PVC, ho felisa phello ea "catalytic degradation" ea HCL;Ea boraro ke ho nyenyefatsa kapa ho fokotsa li-ion tsa tšepe le litšila tse ling tse kotsi tse bapalang karolo ea ho senya;Ntlha ea bone, mefuta e sa tšoaneng ea lik'hemik'hale tsa lik'hemik'hale e ka thibela kholo e tsoelang pele ea li-unsaturated bond le ho thibela ho senyeha ha mebala;Ea bohlano, e na le phello e sireletsang le e sireletsang leseli la ultraviolet.Hangata, li-stabilizers tsa mocheso li sebelisoa hammoho ho latela katleho ea tsona e khethehileng, 'me tšebeliso ea tsona ka bomong ha e fumanehe.Ho feta moo, mefuta e mengata e entsoe ka phofo, e meng e le lik'hemik'hale tse chefo haholo.E le ho nolofatsa tšebeliso, ho thibela chefo ea lerōle, ho fokotsa lintho tse chefo kapa ho e nkela sebaka ka lintho tse se nang chefo, mefuta e mengata ea li-stabilizer tse kopantsoeng e 'nile ea ntlafatsoa ka hare ho naha le linaheng tse ling lilemong tsa morao tjena.Mohlala, letoto la li-composite stabilizer tsa mofuta oa German Bear, hammoho le li-organic tin kapa composite organic tin stabilizers tse tsoang linaheng tse kang United States, Jeremane, Japane le Netherlands, kaofela li na le karolo e ngata ea mmaraka Chaena.Ka hona, ke tlhokahalo e potlakileng bakeng sa nts'etsopele ea indasteri ea polasetiki ea Chaena ho khothaletsa ka botlalo ts'ebeliso ea li-stabilizer tse ncha tse sebetsang hantle, tse theko e tlase, tse se nang lerōle, tse se nang chefo kapa chefo e tlase.
Nako ea poso: Dec-06-2023
