Iterambere rya Kalisiyumu na Zinki

Bitewe no kongerera ubumenyi ku kurengera ibidukikije mu bihugu byose ku isi, amategeko n'amabwiriza yo kurengera ibidukikije agenda anozwa buhoro buhoro, cyane cyane ibisabwa ku isuku ku bicuruzwa bya pulasitiki nk'imiti, gutunganya ibiribwa, ibikenerwa buri munsi, na pulasitiki y'ibikinisho. Ibikoresho bikomeza umunyu wa lisansi na cadmium bizasimburwa burundu n'ibidakomeza umunyu bya PVC. . Gukora inyongera za pulasitiki zo mu mahanga bizakunda kuba byinshi kandi byihariye, ibisabwa ku kurengera ibidukikije birahabwa agaciro cyane, kandi bikora neza kandi bifite imikorere myinshi. Ubushakashatsi n'iterambere ry'ibikoresho bishya bikomeza umunyu bya PVC bitangiza ibidukikije byabaye ikintu kidasubirwaho. Icyerekezo kitangiza ubushyuhe cya PVC cyibanda cyane cyane ku bice bibiri bya organotin na calcium-zinc composite heat stabilizers, kandi intambwe nini yatewe muri byombi. Bigaragarira cyane cyane mu bushakashatsi bwatsinze no gukoresha cyane ibikoresho bikomeza ubushyuhe bya organotin bihagarariwe na Leta Zunze Ubumwe za Amerika, no gukurura no gukoresha ibikoresho bikomeza ubushyuhe bya calcium-zinc composite heat stabilizers bihagarariwe n'Uburayi, ariko igiciro cya organotin kirahenze cyane. Ibikoresho bikomeza umunyu bya calcium-zinc bizahora byubaka sisitemu ya PVC itangiza ubushyuhe mu bihugu byose ku isi.