Ziziphi iingenelo kunye nokungalunganga kokongeza i-hydrotalcite kwi-calcium zinc stabilizers?

IHydrotalc yimathiriyeli ekrwada eyimfuneko kwi-calcium zinc stabilizers. I-Hydrotalc inesakhiwo esikhethekileyo kunye neempawu, kwaye iimpawu zayo ezisisiseko ziyi-alkalinity kunye ne-multi porosity, kunye nokusebenza okuyingqayizivele kunye nokusebenza kakuhle kunye nokusebenza kakuhle. Iyakwazi ukufunxa ngokufanelekileyo i-hydrogen chloride ekhutshwe ngexesha lokuthotywa kwe-PVC, icothise i-self catalytic effect ye-hydrogen chloride kwi-PVC resin, kwaye isebenze njengento yokufunxa i-asidi, eyaziwa ngokuba yi-thermal stability. Isetyenziswa ngokuqhelekileyo njenge-thermal stabilizer.
IHydrotalc ikwanazo iingenelo zokungafihli kakuhle, ukugquma, ukumelana nemozulu, kunye nokuqhubekeka. Ayingcoliswanga yi-sulfides, i-non-toxic, kwaye inokusebenza ngokubambisana kunye nezinzisi zokushisa ezifana nesepha ye-zinc kunye ne-organic tin. Luhlobo oluthembisayo lwe-non-toxic axiliary heat stabilizer.
Isakhiwo se-hydrotalcite sibekwe kunye nesithuba esikhulu se-interlayer ye-0.76-0.79nm, kwaye inendawo enkulu yendawo ethile, evumela ukuba amaqela ayo e-hydroxyl aphendule ngokupheleleyo kunye ne-hydrogen chloride kwaye ibe nefuthe elihle kwi-stabilizers.
Ukungalungi kwe-hydrotalcite zezi:
1. Ngokuphathelele ubumhlophe bokuqala, i-hydrotalcite ayinayo impembelelo ekuphuculweni kombala wokuqala we-PVC mhlawumbi yodwa okanye kwi-synergy kunye ne-calcium zinc system. Emva kokuguga kwi-oveni eshushu eyi-180 ℃, umbala wesampulu uthande ukubabomvu.
2. Ngokuzinza kokushisa okubomvu kwe-Congo, isenzo esisodwa se-hydrotalcite sinokuphucula ixesha lokuzinza kwe-thermal ye-PVC, kwaye ngokunyuka kwexabiso elongezelelweyo, ixesha lokuzinza kwe-thermal le-PVC libonisa ukunyuka okunyukayo, kodwa ukunyuka akubalulekanga.
3. Xa udibaniso lwe-hydrotalcite kunye ne-calcium zinc system isetyenziswe njenge-thermal stabilizer, ixesha lokuzinza kwe-thermal ye-PVC liphuculwe kakhulu, kwaye umkhwa wokunyusa ixesha lokuzinza kwe-thermal kunye nenani elongezelelweyo elongezelelweyo liyaneliseka. Ngoko ke, i-dihydroxy metal hydroxides kufuneka ihlelwe njengexesha elide lokuncedisa i-thermal stabilizers, enokwandisa ngokufanelekileyo ixesha elide lokuzinza kwe-thermal ye-PVC. Ke, xa udibanisa i-calcium zinc stabilizers, i-hydrotalcite yenye yezinto ezibalulekileyo ekrwada.