Alumina ntụ ntụ bụ isi akụrụngwa nke ọcha fused alumina grit na abrasives ndị ọzọ, nke nwere njirimara nke nguzogide okpomọkụ dị elu, nguzogide corrosion na ihe kwụsiri ike. Nano-alumina XZ-LY101 bụ mmiri na-enweghị agba na nke na-egbuke egbuke, nke a na-ejikarị eme ihe dị ka ihe mgbakwunye na resins dị iche iche acrylic, polyurethane resins, epoxy resins, wdg. na ụdị dị iche iche nke alumina ntụ ntụ nwere dị iche iche ojiji. Ihe ndị a na-elekwasị anya n'iwebata ojiji nke α, γ, na β-ụdị alumina ntụ ntụ.
1.a-alumina ntụ ntụ
N'ime lattice nke α-ụdị alumina ntụ ntụ, oxygen ions na-ejikọta ya na ọdịdị hexagonal, Al3 + na-ekesa n'ụzọ ziri ezi na ụlọ ọrụ nhazi nke octahedral nke ikuku oxygen gbara gburugburu, na ike lattice dị nnọọ ukwuu, ya mere ebe mgbaze na ebe na-esi esi dị elu. α-ụdị oxidation Aluminom bụ ihe a na-apụghị ịsacha na mmiri na acid. A na-akpọkwa ya aluminum oxide na ụlọ ọrụ. Ọ bụ ihe bụ isi akụrụngwa maka ime metal aluminum; a na-ejikwa ya mee brik dị iche iche, ihe ndị na-eme ka ọkpụkpụ, ọkpọkọ, na ngwá ọrụ nnwale dị elu; enwere ike iji ya dị ka abrasive, ọkụ retardant High-dị ọcha alpha alumina bụkwa akụrụngwa maka mmepụta nke corundum artificial, rubi artificial na sapphire; a na-ejikwa ya na-emepụta mkpụrụ nke sekit agbakwunyere nnukwu ọnụ ọgụgụ nke oge a.
2. γ-alumina ntụ ntụ
γ-ụdị alumina bụ aluminum hydroxide na 140-150 ℃ obere okpomọkụ gburugburu ebe obibi usoro ịkpọ nkụ, ụlọ ọrụ na-akpọkwa alumina na-arụ ọrụ, aluminum gluu. Ọdịdị nke oxygen ion approximation maka vetikal akụkụ nke etiti chiri anya, Al3 + na-ekesa mgbe niile na oxygen ion gbara ya gburugburu octahedral na tetrahedral gaps. γ-ụdị alumina insoluble na mmiri, nwere ike agbaze na ike acid ma ọ bụ siri ike alkali ngwọta, ọ ga-ekpo ọkụ na 1200 ℃ ga-niile converted ka α-ụdị alumina. γ-ụdị alumina bụ ihe nwere oghere, akụkụ dị n'ime nke gram ọ bụla ruru narị narị square mita, ikike mgbasa ozi dị elu. Ngwaahịa ụlọ ọrụ na-abụkarị ihe na-enweghị agba ma ọ bụ obere pinkish cylindrical nwere ezigbo nguzogide nrụgide. N'ime nnụcha mmanụ ala na ụlọ ọrụ petrochemical ka a na-ejikarị eme ihe dị ka mgbasa ozi, ihe na-akpali akpali na onye na-ebu; na ụlọ ọrụ bụ mmanụ transformer, mmanụ deacidification mmanụ turbine, na-ejikwa maka nyocha oyi akwa; N'ime ụlọ nyocha ahụ bụ onye na-anọpụ iche siri ike desiccant, ike ihicha ya abụghị ihe na-erughị phosphorus pentoxide, mgbe ejiri ya na 175 ℃ kpo oku 6-8h nwekwara ike ịmaliteghachi ma jiri ya mee ihe.
3.β-alumina ntụ ntụ
β-ụdị alumina ntụ ntụ nwekwara ike ịkpọ alumina ntụ ntụ na-arụ ọrụ. Alumina ntụ ntụ na-arụ ọrụ nwere ike ọrụ dị elu, hygroscopicity siri ike, anaghị aza ma ọ bụ mgbawa mgbe ọ na-amịkọrọ mmiri, na-adịghị egbu egbu, na-esighị ike, na-adịghị ike na mmiri na ethanol, nwere adsorption siri ike maka fluorine, nke a na-ejikarị maka iwepụ fluoride nke mmiri ọṅụṅụ na mpaghara fluorine dị elu.
Alumina na-arụ ọrụ nwere ike ịhọpụta mmiri site na gas, uzuoku mmiri na ụfọdụ mmiri mmiri. Mgbe saturation adsorption gasịrị, enwere ike ịmaliteghachi ya site na iwepu mmiri site na kpo oku na ihe ruru. 175-315 Celsius C. Adsorption na revival nwere ike rụrụ ọtụtụ ugboro. Na mgbakwunye na-eji dị ka a desiccant, ọ nwekwara ike adsorb vepo si mmeru oxygen, hydrogen, carbon dioxide, eke gas wdg nke lubricating mmanụ. A na-ejikwa ya dị ka ihe na-eme ka ọ bụrụ ihe na-eme ka ọ bụrụ onye na-ebu maka nyocha oyi akwa.