intlokob

1. Indima ye-titanium dioxide kwiingubo
Iingubo zenziwa ikakhulu ngamacandelo amane: izinto ezenza ifilimu, i-pigments, i-solvents kunye ne-additives.I-pigments kwi-coating inamandla athile okufihla.Ayinakugubungela kuphela umbala wokuqala wento egqunyiweyo, kodwa iphinde inike ingubo yombala oqaqambileyo.Qonda umphumo wokuhlobisa wokukhanyisa kunye nobuhle.Kwangaxeshanye, i-pigment idityaniswe ngokusondeleyo kunye ne-arhente yokunyanga kunye ne-substrate, kwaye idityanisiwe, inokuphucula amandla omatshini kunye nokunamathela kwefilimu yokwambathisa, ithintele ukuqhekeka okanye ukuwa, kwaye inokunyusa ubukhulu befilimu yokwambathisa, ithintele. ukungena kwimisebe ye-ultraviolet okanye umswakama, kunye nokuphucula ukugquma.Iimpawu ezichasayo zokuguga kunye nokuqina kwefilimu zandisa ubomi benkonzo yefilimu kunye nento ekhuselweyo.
Kwibala lebala, ubungakanani bebala elimhlophe likhulu kakhulu, kwaye iimfuno zokusebenza zokwaleka kwebala elimhlophe: ①Ubumhlophe obuhle;②Ukusila kakuhle kunye nokumanzisa;③Ukumelana nemozulu elungileyo;④Uzinzo oluhle lweekhemikhali;⑤Ubungakanani be-particle encinci, ukufihla amandla kunye nokulahlekelwa Amandla ombala ophezulu, i-opacity enhle kunye ne-gloss.
I-Titanium dioxide luhlobo lwebala elimhlophe elisetyenziswa kakhulu ekugqumeni.Imveliso yayo ibala ngaphezu kwe-70% yee-pigments ze-inorganic, kwaye ukusetyenziswa kwayo kubalelwa kwi-95.5% yokusetyenziswa okupheleleyo kwemibala emhlophe.Okwangoku, malunga ne-60% ye-titanium dioxide yehlabathi isetyenziselwa ukwenza iingubo ezahlukeneyo, ngakumbi i-rutile titanium dioxide, uninzi lwayo lusetyenziswa kushishino lokugquma.Ipeyinti eyenziwe nge-titanium dioxide inemibala eqaqambileyo, amandla amakhulu okufihla, amandla aqinileyo okuthambisa, umthamo ophantsi, kunye neendidi ezininzi.Ikhusela ukuzinza kwe-medium, kwaye inokunyusa amandla omatshini kunye nokunamathela kwifilimu yepeyinti, ikhusele ukuqhekeka, kunye nokukhusela imisebe ye-ultraviolet.Ingena emanzini kwaye yandisa ubomi befilimu yepeyinti.Ukudibanisa umbala phantse yonke ipateni kwipeyinti yepeyinti enemibala ayinakwahlulwa kwi-titanium dioxide.
Iindidi ezahlukeneyo zokugquma ngeenjongo ezahlukeneyo zineemfuno ezahlukeneyo zetitanium dioxide.Ngokomzekelo, iingubo zomgubo zifuna ukusetyenziswa kwe-rutile titanium dioxide kunye ne-dispersibility enhle.I-Anatase titanium dioxide inamandla aphantsi okunciphisa umbala kunye nomsebenzi onamandla we-photochemical.Xa isetyenziswe kwi-powder coatings, ifilimu yokugqoka ijwayele ukutyheli.I-rutile titanium dioxide eveliswa yindlela ye-sulfuric acid ineenzuzo zexabiso eliphakathi, ukusabalalisa okulungileyo, amandla okufihla okulungileyo kunye namandla okunciphisa umbala, kwaye ifaneleke kakhulu kwiingubo zomgubo zangaphakathi.Ukongeza kwi-dispersibility elungileyo, ukufihla amandla kunye namandla okunciphisa umbala, i-titanium dioksidi kwiingubo zangaphandle zomgubo nazo zifuna isimo sezulu esihle.Ngoko ke, i-titanium powder ye-powder yangaphandle yokugquma idla ngokuba yi-rutile titanium dioxide eveliswa yi-chlorination.
2. Uhlalutyo lwempembelelo yomgangatho ophambili wokuguquguquka kwe-titanium dioxide kwiingubo
1 ubumhlophe
I-Titanium dioxide isetyenziswa njengebala elimhlophe lokwaleka.Ubumhlophe bayo bubaluleke kakhulu kwaye sesinye sezibonakaliso eziphambili zekhwalithi ezifunekayo ngeengubo.Ubumhlophe obumpofu be-titanium dioxide buya kuchaphazela ngokuthe ngqo ukubonakala kwefilimu yokugqoka.Into ephambili echaphazela ubumhlophe be-titanium dioxide luhlobo kunye nomxholo wokungcola okuyingozi, kuba i-titanium dioxide inomdla kakhulu kwizinto ezingcolileyo, ngakumbi i-rutile titanium dioxide.
Ngoko ke, kwanomlinganiselo omncinci wokungcola uya kuba nefuthe elikhulu kumhlophe we-titanium dioxide.Ubumhlophe betitanium dioxide eveliswa yinkqubo yechloride budla ngokulunge ngakumbi kunobo buveliswa yinkqubo yesulfuric acid.Oku kungenxa yokuba i-tetrachloride ye-titanium esetyenziselwa ukuveliswa kwe-titanium dioxide yinkqubo ye-chloride iye yahlanjululwa kwaye yahlanjululwa, kwaye umxholo wayo wokungcola ungaphantsi, ngelixa inkqubo ye-sulfuric acid isebenzisa Izinto eziluhlaza zinomxholo ophezulu wokungcola, onokuthi kuphela. zisuswe ngobuchule bokuhlamba kunye ne-bleaching.
2 ukufihla amandla
Amandla okufihla ngumphezulu wento egqunyiweyo ngesentimitha nganye.Xa igutyungelwe ngokupheleleyo, indawo efanayo ipeyintiwe.Okukhona amandla okufihla i-titanium dioxide esetyenzisiweyo, ifilimu yokugquma iya kuba mncinci, kwaye incinci inani lepeyinti efunekayo, incinci inani le-titanium dioxide efunekayo, ukuba amandla okufihla i-titanium dioxide ayancipha, ukuze ukufezekisa umphumo ofanayo wokugubungela, inani le-titanium dioxide efunekayo linyuka, ixabiso lemveliso liya kwanda, kwaye ukunyuka kwenani le-titanium dioxide kuya kubangela ukuba i-titanium dioxide kwi-coating Kunzima ukusabalalisa ngokufanayo, kwaye ukuhlanganiswa kwenzeka, okuya kuthi. kwakhona kuchaphazela umphumo wokugquma wengubo.
3 ukumelana nemozulu
Iingubo zifuna ukumelana nemozulu ephezulu ye-titanium dioxide, ngakumbi kwiingubo zangaphandle zangaphandle, ezifuna ukumelana nemozulu ephezulu okanye ukuxhathisa imozulu ephezulu.Isebenzisa ititanium dioxide ekwaziyo ukumelana nemozulu ephantsi, ifilimu egqumayo iya kuba neengxaki ezinjengokufiphala, ukujika kombala, ukutshova, ukuqhekeka nokuxobuka.Ubume bekristale be-rutile titanium dioxide buqinile kune-anatase titanium dioxide, kwaye umsebenzi wayo we-photochemical uphantsi.Ke ngoko, ukuxhathisa kwemozulu kuphezulu kakhulu kune-anatase titanium dioxide.Ngoko ke, i-titanium dioxide esetyenziselwa ukugquma i-rutile titanium dioxide.Indlela ephambili yokuphucula ukuxhathisa kwemozulu ye-titanium dioxide kukwenza unyango lwe-inorganic surface, oko kukuthi, ukugqoka enye okanye ngaphezulu kwee-oksidi ze-inorganic okanye i-hydrated oxides phezu kwamasuntswana e-titanium dioxide.
4 ukusasazeka
I-Titanium dioxide ngamasuntswana e-ultra-fine anommandla omkhulu womphezulu othile kunye namandla aphezulu aphezulu.Kulula ukudibanisa phakathi kwamaqhekeza kwaye kunzima ukusabalalisa ngokuzinzileyo kwiingubo.Ukusasazwa kakubi kwe-titanium dioxide kuya kuchaphazela ngokuthe ngqo iipropati zayo zokukhanya ezifana nokunciphisa umbala, amandla okufihla kunye ne-gloss surface kwi-coating, kunye nokuchaphazela ukuzinza kokugcinwa, umbane, ukulinganisa, ukuqina kwe-coating, kunye nokumelana nokubola kwengubo.Iipropati zesicelo ezifana ne-conductivity yombane kunye ne-conductivity iya kuchaphazela ixabiso lemveliso yeengubo, kuba ukusetyenziswa kwamandla okusila kunye nokuchithwa kwemisebenzi kuphezulu, kubalwa uninzi lwamandla okusetyenziswa kwenkqubo yokuvelisa, kunye nokulahlekelwa kwezixhobo kukhulu. .
Imfuno ye-titanium dioxide iye yanda kulo nyaka, ngakumbi kwi-titanium dioxide esetyenziswa kwi-lithium-ion imboni ye-aviation, ekusafuneka ixhomekeke ekuthengisweni kwamanye amazwe.Njengomzantsi we-titanium dioxide, iingubo zichaphazeleka sisiqhwithi sokusingqongileyo, kwaye inani elikhulu lamashishini amancinci naphakathi avaliwe.Kwixesha elizayo, inani le-titanium dioksidi kwimakethi yokwaleka nayo iya kuncipha.


Ixesha lokuposa: Aug-22-2020