1) Umunca futhi unciphise i-HCL, uvimbele umphumela wayo wokuzivuselela we-auto. Lolu hlobo lwesiqinisi luhlanganisa usawoti we-lead, insipho yensimbi ye-organic acid, ama-organotin compounds, ama-epoxy compounds, usawoti we-inorganic, kanye nosawoti we-metal thiol. Angasabela ne-HCL futhi avimbele ukusabela kwe-PVC ukuze kususwe i-HCL.
2) Ukufaka esikhundleni ama-athomu e-chlorine angazinzile kuma-molecule e-PVC kuvimbela ukususwa kwe-HCL. Uma i-organic tin stabilizer ihambisana nama-athomu e-chlorine angazinzile ama-molecule e-PVC, i-organic tin izoshintshwa ngama-athomu e-chlorine angazinzile emzimbeni wokuxhumana.
3) Ukusabela kokwengeza ngesakhiwo se-polyene kuphazamisa ukwakheka kwesistimu enkulu ehlanganisiwe futhi kunciphisa umbala. Usawoti we-asidi ongagcwele noma ama-ester aqukethe ama-double bond, adlula esenzweni sokwengeza i-diene nama-molecule e-PVC ngokuhlanganisa ama-double bond, ngaleyo ndlela aphazamise isakhiwo sawo esihlanganisiwe futhi avimbele ukushintsha kombala.
4) Ukubamba ama-free radical nokuvimbela ukusabela kwe-oxidation, lesi siqinisi sokushisa singaba nomphumela owodwa noma eminingana.
Isiqinisi sokushisa se-PVC esifanele kufanele sibe yinto enezinto eziningi noma ingxube yezinto ezingafeza imisebenzi elandelayo: okokuqala, ukufaka esikhundleni sezinto ezisebenzayo nezingazinzi; Okwesibili ukumunca nokunciphisa i-HCL ekhishwa ngesikhathi sokucubungula i-PVC, ukususa umphumela wokubola okuzenzakalelayo kwe-HCL; Okwesithathu ukuncishisa noma ukudlulisa ama-ion ensimbi kanye nokunye ukungcola okulimazayo okudlala indima yokunciphisa ekuwohlokeni; Okwesine, izinhlobo ezahlukene zokusabela kwamakhemikhali zingavimba ukukhula okuqhubekayo kwezibopho ezingagcwalisiwe futhi zivimbele umbala wokuwohloka; Okwesihlanu, inomphumela wokuvikela nokuvikela ekukhanyeni kwe-ultraviolet. Ngokuvamile, iziqinisi zokushisa zisetshenziswa ngokuhlanganiswa ngokusekelwe ekusebenzeni kwazo okukhethekile, futhi ukusetshenziswa kwazo ngakunye akuvamile. Ngaphezu kwalokho, izinhlobo eziningi zisesimweni sempuphu, kanti ezinye zingamakhemikhali anobuthi obukhulu. Ukuze kube lula ukusebenzisa, kuvinjelwe ubuthi bothuli, kuncishiswe izinto ezinobuthi noma kufakwe ezinye izinto ezingenabuthi, kuye kwathuthukiswa izinhlobo eziningi zeziqinisi ezihlanganisiwe kokubili ngaphakathi nangaphandle kweminyaka yamuva. Isibonelo, uchungechunge lwe-German Bear composite stabilizer, kanye ne-organic tin noma i-composite organic tin stabilizers ezivela emazweni afana ne-United States, iJalimane, iJapan, neNetherlands, zonke zinesabelo esikhulu emakethe eShayina. Ngakho-ke, kunesidingo esiphuthumayo sokuthuthukiswa kwemboni yepulasitiki yaseShayina ukukhuthaza ngokugcwele ukusetshenziswa kwe-composite stabilizers ezintsha ezisebenza kahle, ezingabizi kakhulu, ezingenalo uthuli, ezingenabo ubuthi noma ezinobuthi obuphansi.
Isikhathi sokuthunyelwe: Disemba-06-2023
