Ukusa kumlinganiselo othile, i-zinc stearate inokuthatha indawo ye-stearic acid kunye ne-zinc oxide, kodwa i-asidi ye-stearic kunye ne-zinc oxide kwirabha azikwazi kusabela ngokupheleleyo kwaye zibe neziphumo zazo.
I-Zinc oxide kunye ne-stearic acid zenza inkqubo yokuvuselela kwinkqubo ye-sulfur vulcanization, kwaye imisebenzi yayo ephambili yile ilandelayo:
1. Inkqubo ye-vulcanization:
I-ZnO idibana ne-SA ukuvelisa isepha ye-zinc, ephucula ukunyibilika kwe-ZnO kwirabha, kwaye isebenzisana ne-accelerators ukwenza i-complex ene-solubility efanelekileyo kwi-rubber, isebenze i-accelerators kunye nesulfure, kwaye iphucule ukusebenza kakuhle kwe-vulcanization.
2. Ukwandisa ukuxinana okudityaniswayo kweevulcanizates:
I-ZnO kunye ne-SA zenza ityuwa ye-zinc enyibilikayo.Ityuwa ye-zinc i-chelated kunye ne-bond-linked bond, ekhusela i-bond ebuthakathaka, ibangela ukuba i-vulcanization yenze i-bond short-linked bond, yongeza iibhondi ezitsha ezinqamlezileyo, kwaye yandisa ukuxinana kwe-cross-linking.
3.Phucula ukuxhathisa ukwaluphala kwerabha evulcanized:
Ngexesha lokusetyenziswa kwerabha evuzayo, i-polysulfide bond breaks kunye ne-hydrogen sulfide eyenziwe iya kukhawulezisa ukuguga kwerabha, kodwa i-ZnO isabela nge-hydrogen sulfide ukuvelisa i-zinc sulfide, esebenzisa i-hydrogen sulfide kwaye inciphisa ukubola kwe-hydrogen sulfide emnqamlezweni. inethiwekhi edityanisiweyo;ukongeza, i-ZnO inokuthunga iibhondi zesulfure ezaphukileyo kwaye izinze iibhondi ezidityanisiweyo ezinqamlezileyo.
4. Iindlela ezahlukeneyo zokubonisa:
Kwiinkqubo ezahlukeneyo zokulungelelaniswa kwe-vulcanization, indlela yokusebenza kwee-accelerators ezahlukeneyo ze-vulcanization yahluke kakhulu.Isiphumo se-ZnO kunye ne-SA reaction ukwenza i-zinc stearate intermediate nayo yahlukile kuleyo yokusebenzisa i-zinc stearate yodwa.
Ixesha lokuposa: Oct-12-2021
