Alumina poda ndiyo huru mbishi yewhite fused alumina grit uye mamwe mabrasives, ane hunhu hwekupisa tembiricha kuramba, corrosion resistance uye yakagadzikana zvivakwa.Nano-aluminium XZ-LY101 imvura isina ruvara uye yakajeka, iyo inoshandiswa zvakanyanya sekuwedzera mune zvakasiyana-siyana acrylic resins, polyurethane resins, epoxy resins, etc. Inogonawo kuva mvura-based kana mafuta-based solvent, uye inogona kuvharwa pamagirazi ekupfekedza zvinhu, matombo anokosha, chaiyo chiridzwa zvekushandisa, nezvimwe;uye marudzi akasiyana-siyana ealuminium powder ane kushandiswa kwakasiyana.Izvi zvinotevera zvinotarisa kuunza kushandiswa kwe α, γ, uye β-mhando yealumina powder.
1.α-aluminium powder
Mune lattice yea-alumina poda, maion eokisijeni akanyatso kurongedzerwa mune hexagonal chimiro, Al3+ yakagoverwa musymmetrically muoctahedral coordination centre yakakomberedzwa neokisijeni ion, uye simba relatisi rakakura kwazvo, saka nzvimbo yekunyunguduka nenzvimbo yekubikira yakanyanya. high.α-mhando oxidation Aluminium hainyungudika mumvura uye asidhi.Iyo inonzi zvakare aluminium oxide muindasitiri.Ndiyo yakakosha zvinhu zvekugadzira simbi aluminium;inoshandiswawo kugadzira zvidhinha zvakasiyana-siyana zvinoramba, crucibles refractory, refractory pombi, uye kupisa kwakanyanya kwekuedza zviridzwa;inogona zvakare kushandiswa seyakavhuvhuta, murazvo unodzoreredza High-purity alpha alumina zvakare iri mbishi kugadzirwa kweartificial corundum, artificial ruby nesafire;iyo inoshandiswawo kugadzira iyo substrate yemazuva ano yakakura-yakakura yakabatanidzwa maseketi.
2. γ-aluminium powder
γ-mhando yealuminium ndeye aluminium hydroxide mu140-150 ℃ yakaderera-tembiricha nharaunda dehydration system, indasitiri inonzi zvakare inoshanda alumina, aluminium glue.Chimiro cheokisijeni ion approximation yedivi rakamira repakati rakanyatsorongedzwa, Al3 + isina kugoverwa muion yeokisijeni yakakomberedzwa neoctahedral uye tetrahedral gaps.γ-mhando yealumina isinganyunguriki mumvura, inogona kunyungudika muasidhi yakasimba kana yakasimba alkali mhinduro, ichapisa kusvika ku1200 ℃ yese ichashandurwa kuita α-mhando alumina.γ-mhando alumina chinhu chine porous, iyo yemukati nzvimbo yegiramu imwe neimwe inosvika mazana emamita emamita, yakakwirira chiitiko adsorption kugona.Chigadzirwa cheindasitiri chinowanzo chisina ruvara kana zvishoma pinkish cylindrical particle ine yakanaka pressure resistance.Mu petroleum refining uye petrochemical industry inowanzoshandiswa se adsorbent, catalyst uye catalyst carrier;muindasitiri ndeye transformer oiri, turbine mafuta deacidification agent, inoshandiswawo pakuongorora kwemavara;mu laboratori iine neutral yakasimba desiccant, simba rayo rekuomesa haisi pasi pe phosphorus pentoxide, mushure mekushandiswa mune inotevera 175 ℃ kupisa 6-8h inogonawo kuvandudzwa uye kushandiswa zvakare.
3.β-aluminium poda
β-mhando alumina poda inogona zvakare kunzi inoshanda alumina poda.Activated alumina poda ine yakakwira mechani simba, yakasimba hygroscopicity, haina kuzvimba kana kutsemuka mushure mekutora mvura, isiri-chepfu, isina kunhuhwirira, isinganyungudika mumvura uye ethanol, ine yakasimba adsorption yefluorine, inonyanya kushandiswa kubvisa fluoride kubviswa kwemvura yekunwa munzvimbo dzakakwirira dzefluorine. .
Activated alumina ine kugona kusarudza adsorb mvura kubva mumagasi, mhute yemvura uye zvimwe zvinwiwa.Mushure me adsorption saturation, inogona kumutsidzirwa nekubvisa mvura nekudziya pa approx.175-315°C.Adsorption uye kumutsidzira zvinogona kuitwa kakawanda.Pamusoro pekushandiswa se desiccant, inogonawo kupinza mhute kubva kune yakasvibiswa okisijeni, hydrogen, carbon dioxide, gasi rechisikigo nezvimwewo zvemafuta ekuzora.Inoshandiswawo sechinhu chinokonzeresa uye chinotakura mutakuri uye semutakuri wekuongorora kwemavara.