intlokob

I-Anatase titanium dioxide yeyebala le-pigment ye-titanium dioxide, inamandla okugquma awomeleleyo, amandla aphezulu okuthamba, ukumelana nemozulu elungileyo kunye nezinye iimpawu, oku kulandelayo kulandele i-pigment yesilivere yehashe ukuqonda indlela yokuphucula ukusebenza kwesicelo se-anatase titanium dioxide.

I-1, indlela ephambili yokuphucula kunye nokuzinzisa ubumhlophe be-titanium dioxide

Ubumhlophe be-titanium dioxide buphenjelelwa zizinto ezininzi, kubandakanya umthombo wamaminerali, izixhobo kunye nobuchwepheshe obuphambili.Ngokusebenzisa iimvavanyo kunye namava entsimi, izinto eziphambili ezichaphazela ubumhlophe bayo: umgangatho we-hydrolysis, ukususwa kwezinto ezingcolileyo kunye neemeko zokubala.

IMG20170421132315

Okwangoku, kukho iintlobo ezimbini zeteknoloji ye-hydrolysis ye-titanium dioxide e-China, i-hydrolysis yoxinzelelo kunye ne-atmospheric hydrolysis.Ukususela kuhlalutyo lomgangatho we-hydrolysis kunye nomgangatho wemveliso, umgangatho we-hydrolysis we-atmospheric ungcono, i-hydrolysis ye-particle size ifanayo.Umgangatho we-hydrolysis kufuneka uphuculwe, isalathisi somgangatho wesisombululo se-titanium esigxininisiweyo kufuneka silawulwe ngokungqongqo, umlinganiselo wesinyithi kwi-titanium kunye nomxholo oqinileyo kufuneka ulawulwe ngaphakathi koluhlu olumiselweyo, kwaye iimeko zokusebenza zenkqubo ye-hydrolysis kufuneka zinyuswe.

Enye into ephambili echaphazela ubumhlophe be-titanium dioxide bubumdaka obuthile bezinto ezinemibala, ezinje: intsimbi, i-cobalt, i-nickel, njl., kufuneka ithathe amanyathelo athile okususa, kuba i-anatase titanium dioxide, umxholo wentsimbi ephezulu kwi-120ppm, ichaphazela ubumhlophe bayo, nokuba isenzeko sokutshintsha kombala okhanyayo.Ukusebenzisa itekhnoloji ye-bleaching, yongeza amandla okuhlamba entsimbi ephezulu, ngelixa ukongeza ezinye ii-agent zokufihla, ezifana ne-antimony trioxide kunye ne-phosphoric acid, kwi-iron complex masking, ukunciphisa impembelelo yokungcola kwi-titanium dioxide whiteness.

Ukulawulwa kweemeko zokubala yinxalenye ebalulekileyo yoyilo lwe-titanium dioxide crystal core, iqondo lokushisa elihle lokubala, linokwenza i-titanium dioxide desulfurization, ukuphelelwa ngamanzi emzimbeni ngokupheleleyo, kangangoko kunokwenzeka ukuphepha i-lattice defect ye-titanium dioxide crystal core, kwaye ichaphazela ubumhlophe bayo. .Ngoko ke, ukwandisa ulawulo lwamanqaku obushushu angundoqo, kwangaxeshanye yenza isixa sokutya kunye nesantya seziko lomdlalo ofanelekileyo, ukwandisa igumbi lokutsha, uthintele ukunxibelelana phakathi kwezinto kunye nedangatye, ukutshisa.

IMG20170609092319

I-2, i-titanium dioxide ezinzileyo yokusabalalisa ubungakanani be-particle, ukuphucula i-titanium dioxide dispersibility kunye namandla okugquma

Ukusabalalisa ubungakanani be-particle ye-titanium dioxide yisalathiso esibanzi, esichaphazela kakhulu iimpawu ze-pigment kunye nokusetyenziswa kwemveliso ye-titanium dioxide.Ngoko ke, ingxoxo yokugubungela amandla kunye nokusabalalisa kunokuhlalutya ngokuthe ngqo kwi-particle size distribution.

Izinto ezichaphazela ubungakanani be-particle ye-titanium dioxide zinzima.Eyokuqala bubungakanani bobungakanani besuntswana lokuqala le-hydrolysis.Ubungakanani bamasuntswana oqobo bunokugcinwa kuluhlu oluthile ngokulawula nokulungelelanisa iimeko zenkqubo ye-hydrolysis.Okwesibini, ubushushu be-calcination, kwinkqubo yokubala kwe-metitanic acid, amasuntswana angena kwixesha lokuguqulwa kwekristale kunye nenqanaba lokukhula, lilawula ubushushu obufanelekileyo, ukwenzela ukuba ukukhula kwamasuntswana phakathi koluhlu oluthile.Okokugqibela kukugaya imveliso, ngokuqhelekileyo ukuguqulwa kweRaymond mill kunye nokulungelelaniswa kwesantya se-analyzer, ukulawulwa komgangatho wokugaya, ngexesha elifanayo, ezinye izixhobo zokugaya zingasetyenziswa, njengale: yonke i-mill yamandla, isixhobo sokusila emoyeni kunye nesando sokusila.

I-3, ngonyango oluphezulu, phucula ukusebenza kwesicelo se-titanium dioxide

I-Titanium dioxide ngumgubo we-polar kakhulu, indalo i-hydrophilic kunye ne-oleophobic, kodwa ukuba i-adsorption ye-surface adsorption yomoya, amanzi kunye nezinye izinto ezingcolileyo, ukusasazeka emanzini kuyancipha, kudla ngokufuneka unyango oluphezulu, i-arhente yonyango esetyenziswa ngokuqhelekileyo ye-hydrated alumina kunye ne-hydrated. i-silicon oxide.Okwangoku, kukho ii-arhente zonyango ezingaphezulu kwimarike, ezinje: isilicon ephilayo, i-agent edibanisayo, njl. njl., okanye ezinye ii-pigments ze-inorganic ezifana ne-barium sulfate, i-aluminium hydroxide, njl., ukuphucula iimpawu zomphezulu ye-titanium dioxide, iphucula ukusasazeka kwayo.


Ixesha lokuposa: Nov-19-2021