Cov kua calcium zinc stabilizersRaws li ib yam ntawm cov khoom siv uas muaj peev xwm ua tau ntau yam PVC cov khoom muag, tau siv dav hauv PVC conveyor siv, PVC cov khoom ua si, PVC zaj duab xis, extruded profiles, khau thiab lwm yam khoom. Cov kua calcium zinc stabilizers yog ib puag ncig tus phooj ywg thiab tsis muaj tshuaj lom, nrog rau thermal stability zoo, dispersion, huab cua tsis kam thiab tiv thaiv kev laus.
Cov khoom tseem ceeb ntawm cov kua calcium zinc stabilizers muaj xws li: organic acid ntsev ntawm calcium thiab zinc, cov kuab tshuaj thiaborganic auxiliary tshav kub stabilizers.
Tom qab kev siv cov calcium thiab zinc organic acid ntsev, lub ntsiab stabilizing mechanism yog synergistic nyhuv ntawm calcium thiab zinc organic acid ntsev. Cov zinc ntsev no nquag tsim Lewis acid hlau chlorides ZnCl2 thaum nqus HCl. ZnCl2 muaj zog catalytic nyhuv ntawm qhov degradation ntawm PVC, yog li nws txhawb lub dehydrochlorination ntawm PVC, uas ua rau lub degradation ntawm PVC nyob rau hauv ib lub sij hawm luv luv. Tom qab kev sib xyaw ua ke, cov nyhuv catalytic ntawm ZnCl2 ntawm qhov degradation ntawm PVC yog txwv los ntawm kev hloov cov tshuaj tiv thaiv ntawm calcium ntsev thiab ZnCl2, uas tuaj yeem cuam tshuam cov zinc hlawv, ua kom cov xim zoo nkauj thaum ntxov thiab txhim khu kev ruaj ntseg ntawm PVC.
Ntxiv nrog rau cov txiaj ntsig kev sib koom ua ke uas tau hais los saum toj no, cov txiaj ntsig sib xyaw ua ke ntawm cov organic auxiliary heat stabilizers thiab thawj stabilizers yuav tsum tau txiav txim siab thaum tsim cov kua calcium zinc stabilizers, uas tseem yog lub hom phiaj ntawm kev tshawb fawb thiab kev tsim cov kua calcium zinc stabilizers.
Post lub sij hawm: Jan-02-2025