Impembelelo ye-synergistic ye-organic tin kunye ne-powder calcium zinc stabilizers kwi-polyvinyl chloride (PVC):
I-Organic tin stabilizers (thiol methyl tin) luhlobo oluqhelekileyo olusetyenziswayo lwePVC yokuzinzisa ubushushu. Basabela nge-acidic hydrogen chloride (HCl) kwi-PVC ukwenza iityuwa ezingenabungozi (ezifana ne-tin chloride), ngaloo ndlela zithintela ukuqokelela kwe-HCl kunye nokunciphisa ukuthotywa kunye nokutyheli kwemathiriyeli ye-PVC.
I-Powder calcium zinc stabilizer ngumxube we-calcium kunye neetyuwa ze-zinc, ngokuqhelekileyo zongezwa ngendlela yomgubo ococekileyo kwi-PVC. Zombini i-calcium kunye ne-zinc ion zinamandla okuzinzisa i-PVC. I-calcium ion inokwenza izinto ezine-asidi eziveliswe kwi-PVC kwaye zenze iikhompawundi zetyuwa ze-calcium ezizinzile. I-Zinc ions isabela nge-hydrogen peroxide (HCl) kwi-PVC ukuze yenze iikhompawundi ezingenabungozi ezingenabungozi kwaye zithintele ukuqokelelana kwe-HCl.
Xa i-organic tin kunye ne-powder calcium zinc stabilizers zihlala kwi-PVC, zinokukhuthazana kunye nokuphucula ukukwazi ukunyanga i-HCl. I-tin ye-Organic inokubonelela ngekhono elongezelelweyo lokunciphisa i-HCl eveliswayo, ngelixa i-powdered calcium zinc stabilizers inokubonelela nge-calcium kunye ne-zinc ions, ngakumbi ukukhusela ukuqokelela kwe-HCl. Ngale mpembelelo ye-synergistic, i-organic tin kunye ne-powder calcium zinc stabilizers inokuphucula ukuzinza kwe-thermal ye-PVC, ukuphucula ubomi babo benkonzo kunye nokuzinza kokusebenza.
Kufuneka kuqatshelwe ukuba isixa kunye nomlinganiselo we-organic tin kunye ne-calcium zinc stabilizers kufuneka zilungiswe ngokufanelekileyo ngokweemfuno ezithile kunye nosetyenziso lwendalo yeemveliso ze-PVC, ukuze kuphunyezwe umphumo ongcono we-synergistic. Ngexesha elifanayo, kuyimfuneko ukubeka ingqalelo kwimiba yokhuseleko kunye nokusingqongileyo ngexesha lokusetyenziswa ukuphepha imiphumo emibi kwimpilo yabantu kunye nokusingqongileyo.
Ixesha lokuposa: Nov-30-2023
