Hydrotalc bụ ihe dị mkpa maka ihe na-eme ka calcium zinc sie ike. Hydrotalc nwere nhazi na ihe pụrụ iche, ihe ndị bụ isi ya bụ alkalinity na multi porosity, yana arụmọrụ pụrụ iche na arụmọrụ dị mma. Ọ nwere ike ịmịkọrọ hydrogen chloride nke ewepụtara n'oge mmebi nke PVC, belata mmetụta onwe ya nke hydrogen chloride na PVC resin, ma rụọ ọrụ dị ka ihe na-amịkọrọ acid, nke a makwaara dị ka nkwụsi ike okpomọkụ. A na-ejikarị ya eme ihe dị ka ihe na-eme ka okpomọkụ sie ike.
Hydrotalc nwekwara uru dị na ezigbo nghọta, mkpuchi ihe, iguzogide ihu igwe, na nhazi. Sulfide anaghị emerụ ya, ọ naghị egbu egbu, ọ nwekwara ike ịrụ ọrụ na ihe ndị na-eme ka okpomọkụ sie ike dịka ncha zinc na tin organic. Ọ bụ ụdị ihe na-eme ka okpomọkụ sie ike nke na-anaghị egbu egbu.
Nhazi nke hydrotalcite nwere oghere dị n'etiti 0.76-0.79nm, o nwekwara nnukwu mpaghara elu, nke na-enye ohere ka otu hydroxyl elu ya meghachi omume nke ọma na hydrogen chloride ma nwee mmetụta dị mma na ihe ndị na-eme ka ọ kwụsie ike.
Ihe ọghọm dị na hydrotalcite bụ:
1. Maka ọcha mbụ, hydrotalcite enweghị mmetụta ọ bụla na mmezi nke agba PVC mbụ ma naanị ya ma ọ bụ na njikọta ya na sistemụ calcium zinc. Mgbe ọ kachara nká na oven ọkụ 180 ℃, agba ihe nlele ahụ na-acha ọbara ọbara.
2. N'ihe gbasara nkwụsi ike nke okpomọọkụ uhie Congo, otu ihe hydrotalcite na-eme nwere ike ime ka oge nkwụsi ike nke PVC ka mma, nakwa site na mmụba nke ọnụọgụ mgbakwunye, oge nkwụsi ike nke PVC na-egosi mmụba, mana mmụba ahụ adịghị oke mkpa.
3. Mgbe ejiri njikọta hydrotalcite na calcium zinc sistemụ mee ihe dị ka ihe na-eme ka okpomọkụ sie ike, oge nkwụsi ike okpomọkụ nke PVC na-aka mma nke ukwuu, a na-emezukwa usoro nke ịbawanye oge nkwụsi ike okpomọkụ na mmụba nke ego mgbakwunye. Ya mere, a ga-ekewa dihydroxy metal hydroxides dị ka ihe na-eme ka okpomọkụ kwụsie ike ogologo oge, nke nwere ike ịgbatị oge nkwụsi ike okpomọkụ ogologo oge nke PVC nke ọma. Ya mere, mgbe a na-ejikọta calcium zinc stabilizers, hydrotalcite bụ otu n'ime ihe ndị dị mkpa.
Oge ozi: Mee-24-2024
