1) Funxa kwaye unciphise i-HCL, uthintele isiphumo sayo sokuzilungisa ngokuzenzekelayo. Olu hlobo lwesiqinisi luquka iityuwa ze-lead, isepha zesinyithi ze-organic acid, iikhompawundi ze-organotin, iikhompawundi ze-epoxy, iityuwa ezingaphiliyo, kunye neetyuwa ze-metal thiol. Zingasabela kwi-HCL kwaye zithintele isiphumo se-PVC ukususa i-HCL.
2) Ukutshintsha iiathom zekhlorine ezingazinzanga kwiimolekyuli zePVC kuthintela ukususwa kwe-HCL. Ukuba i-organic tin stabilizer ihambelana neeathom zekhlorine ezingazinzanga zeemolekyuli zePVC, i-organic tin iya kutshintshwa ngeeathom zekhlorine ezingazinzanga emzimbeni wokudibanisa.
3) I-reaction yokongeza kunye nesakhiwo se-polyene iphazamisa ukwakheka kwenkqubo enkulu edibeneyo kwaye inciphisa umbala. Iityuwa ze-asidi ezingagcwaliyo okanye ii-esters ziqulathe iibhondi eziphindwe kabini, ezidlula kwi-reaction ye-diene yokongeza kunye neemolekyuli ze-PVC ngokudibanisa iibhondi eziphindwe kabini, ngaloo ndlela ziphazamisa isakhiwo sazo esidibeneyo kwaye zithintele utshintsho lombala.
4) Ukubamba ii-free radicals kunye nokuthintela iimpendulo ze-oxidation, esi siqinisi sobushushu sinokuba nefuthe elinye okanye amaninzi.
Isiqinisi sobushushu sePVC esifanelekileyo kufuneka sibe yinto esebenza ngeendlela ezininzi okanye umxube wezinto ezinokufezekisa le misebenzi ilandelayo: okokuqala, tshintsha izinto ezisebenzayo nezingazinzanga; Okwesibini kukufunxa nokuthomalalisa i-HCL ekhutshwa ngexesha lokucubungula iPVC, kususwe isiphumo sokuthomalalisa i-catalytic ngokuzenzekelayo se-HCL; Okwesithathu kuthomalalisa okanye kuthambise ii-ion zesinyithi kunye nezinye izinto ezingcolileyo ezidlala indima yokuthomalalisa ekonakaleni; Okwesine, iintlobo ezahlukeneyo zeempendulo zeekhemikhali zinokuthintela ukukhula okuqhubekayo kweebhondi ezingagcwaliyo kwaye zithintele umbala wokuthomalalisa; Okwesihlanu, inefuthe lokukhusela nokukhusela ekukhanyeni kwe-ultraviolet. Ngokwesiqhelo, iziqinisi zobushushu zisetyenziswa ngokudibeneyo ngokusekelwe ekusebenzeni kwazo ngokuthe ngqo, kwaye ukusetyenziswa kwazo ngabanye kunqabile. Ngaphezu koko, uninzi lweentlobo zikwimo yomgubo, ezinye ziyikhemikhali ezinobuthi obukhulu. Ukuze kube lula ukusetyenziswa, kuthintelwe utyhefeko lothuli, kuncitshiswe izinto ezinobuthi okanye kutshintshwe ngezinto ezingenabuthi, iintlobo ezininzi zeziqinisi ezidityanisiweyo ziye zaphuhliswa ngaphakathi nangaphandle kwiminyaka yakutshanje. Umzekelo, uthotho lwe-composite stabilizer lwe-German Bear brand, kunye ne-organic tin okanye i-composite organic tin stabilizers ezivela kumazwe afana ne-United States, i-Germany, i-Japan, ne-Netherlands, zonke zinesabelo esikhulu kwimarike e-China. Ke ngoko, kuyimfuneko engxamisekileyo yokuphuhliswa kweshishini leplastiki lase-China ukukhuthaza ngokupheleleyo ukusetyenziswa kwe-composite stabilizers ezintsha ezisebenzayo, ezingabizi kakhulu, ezingenalo uthuli, ezingenatyhefu okanye ezinobuthi obuphantsi.
Ixesha lokuthumela: Disemba-06-2023
