izindaba

I-titanium tetraisopropanolate(I-Tetraisopropyl Titanate), i-CAS 546-68-9, iyinhlanganisela ebalulekile ye-organotitanium futhi isetshenziswa kabanzi ezimbonini, kwisayensi yezinto zokwakha nakweminye imikhakha. Manje ake sibheke lo mkhiqizo.

Ulwazi oluyisisekelo

Izakhiwo ze-physicochemical eziyinhloko

Ukubukeka nesimo: Emazingeni okushisa egumbi, luwuketshezi olukhanyayo olungenambala kuya koluphuzi olukhanyayo olunephunga elimnandi (elifana ne-alcohols noma ama-ether).

Ukuncibilika: Incibilika kalula ezinyibilikisini eziphilayo, iphendula ngamandla namanzi – izoshesha ukuncibilika ukuze yakhe i-titanium dioxide (TiO₂) precipitate kanye ne-isopropyl alcohol ((CH₃)₂CHOH), ngakho-ke kufanele igcinwe futhi isetshenziswe endaweni eyomile.

Indawo yokubila kanye nendawo yokuncibilika: Iphuzu lokubila licishe libe ngu-220-224℃ (ngengcindezi evamile), kanti iphuzu lokuncibilika licishe libe ngu-14℃ (lingase liqine ngaphansi kuka-14℃ futhi lingaphinde lincibilike lapho lifudumala).

Ukuzinza: Izwela emoyeni, imunca kalula umswakama emoyeni futhi idlule ku-hydrolysis. Ingase ibole emazingeni okushisa aphezulu futhi ikhiphe amagesi acasulayo.

Ukusetshenziswa okuyinhloko

Ukusetshenziswa kwe-titanium tetraisopropanolate kuncike kakhulu ezicini zayo ezintathu eziyinhloko: i-hydrolysis elula ukwakha i-titanium dioxide, ukuhambisana okuhle kwezinto eziphilayo, kanye nomsebenzi wokulungisa izinto. I-titanium tetraisopropanolate isetshenziswa kabanzi emikhakheni eminingi njengokwenziwa kwezinto, ukucubungula izinto zezimboni, ukumboza, kanye nokunamathela. Izimo ezithile zokusetshenziswa yilezi ezilandelayo.

I. Ukwenziwa Kwezinto Ezisetshenziswayo: I-Core njenge-"titanium dioxide precursor"

Lokhu kuyindlela eyinhloko yokusebenzisa i-titaniv Isopropox IDE. Ngokusebenzisa ukusabela kwayo kwe-hydrolysis, izinto ze-titanium dioxide (TiO₂) zezinhlobo nezakhiwo ezahlukene zingalungiswa ngokunembile ukuze zihlangabezane nezidingo ezahlukahlukene.

Ukulungiswa kwe-nano-titanium dioxide

I-Titanium(IV) isopropoxideincibilikiswa ku-solvent ephilayo ngokusebenzisa "indlela ye-sol-gel", bese i-hydrolyzed kancane kancane ngaphansi kwezimo ezilawulekayo (ukulungisa i-pH, izinga lokushisa, kanye nesilinganiso se-hydrolysis) ukuze kwakheke "i-sol" efanayo. Ngemva kokomiswa okwengeziwe kanye ne-calcination, kutholakala i-nano-scale titanium dioxide powder noma ifilimu. Lolu hlobo lwe-nano-tio ₂ lunendawo ephezulu ethile kanye nomsebenzi omuhle kakhulu we-photocatalytic, futhi lungasetshenziswa ku:

Izinto ezisebenzisa i-photocatalytic: ukwelapha indle (ukonakalisa ukungcola okungokwemvelo), ukuhlanzwa komoya (ukubola i-formaldehyde nama-VOC);

Izimonyo ze-Sunscreen: I-Titanium tetraisopropanolate njengesithako sokuvikela ilanga esibonakalayo (i-nano-tio ₂ ingabonakalisa imisebe ye-ultraviolet, ikhanya kakhulu futhi ayiphenduki ibe mhlophe);

Izinto ze-optoelectronic: I-Titanium tetraisopropanolate yokulungiselela ungqimba olumunca ukukhanya lwamaseli elanga kanye nefilimu encane esebenzayo yamadivayisi okubonisa ikristalu eliwuketshezi.

Izembozo ezisebenzayo ze-ceramic nezengilazi

I-isopropoxide ye-Titanium(IV) ihlanganiswa nezinye izithasiselo (njengezinto zokuhlanganisa i-silane) ukuze kwakheke isisombululo sokumboza, esibe sesifuthwa noma sicwiliswa ebusweni be-ceramics nengilazi. Ngemva kokushisa nokupholisa, i-TiO₂ ekhiqizwa yi-hydrolysis ye-tetraisopropyl titanate yakha ingubo ecacile enobunzima obuphezulu, ukumelana nokushisa okuphezulu kanye nokumelana nokuguguleka, okungenza:

Thuthukisa ukumelana kwamabala ezitsheni ze-ceramic kanye nezinto zokugezela (nciphisa ukunamathela kwamabala kawoyela);

Thuthukisa ukumelana kokuklwebheka kwengilazi (njengengilazi yokuvikela isikrini sefoni ephathekayo, ingilazi yemoto);

Ingilazi ye-Endow enomsebenzi "wokuzihlanza" (kusetshenziswa i-photocatalytic property ye-TiO₂ ukubola uthuli kanye namabala angaphezulu).

Ukwenziwa kwezinto ezisebenzayo ezisekelwe ku-titanium

Njengomthombo we-titanium, isabela ngokubambisana namanye usawoti wensimbi (njengosawoti we-aluminium kanye nosawoti we-zirconium) ukulungiselela ama-oxide e-titanium-aluminium composite, izixazululo ze-titanium-zirconium solid kanye nezinye izinto, ezisetshenziswa kuma-ceramics okushisa okuphezulu kanye nama-catalyst carriers (ukuthuthukisa ukuzinza kanye nendawo ethile ebusweni babathwali).

II. Insimu Yokuhlela Izinto Zezimboni: Ukusabela okusebenzayo kwe-catalytic organic

Ngokuncika ekhonweni lokuxhumanisa i-orbital elingenalutho le-athomu ephakathi ye-titanium (Ti⁴⁺), i-Titanium IV Isopropox IDE cas 546-68-9 iyisisusa esihle kakhulu sezinhlobo ezahlukene zezimpendulo eziphilayo, ikakhulukazi ezifanele izimo ezidinga ukukhetha okuphezulu kanye nezimpendulo eziphansi eziseceleni:

Ama-Catalyst okusabela kwe-esterification kanye ne-transesterification

Lapho kuhlanganiswa ama-resin e-polyester (njenge-PET ne-PBT), ukufaka esikhundleni sama-catalyst e-acidic endabuko (njenge-sulfuric acid) kungasheshisa ukusabela kwe-esterification phakathi kwama-carboxylic acid nama-alcohol, kunciphise imikhiqizo ephumayo (njengokuphelelwa amanzi emzimbeni kwama-alcohol), futhi i-catalyst kulula ukuyihlukanisa nemikhiqizo, ngaleyo ndlela kuthuthukiswe ubumsulwa be-resin.

I-Titaniumiv isopropoxide cas 546-68-9ivuselela ukusabela kwe-transesterification (njengokusabela kwama-ester aphansi ane-alcohol ephezulu ukuze kwakheke ama-ester aphezulu) ekwakhiweni kwama-flavour nama-perfume kanye ne-pharmaceutical intermediates, okuthuthukisa ukusebenza kahle kokusabela kanye nokukhiqizwa komkhiqizo.

I-catalysis ekhethiwe ekuhlanganisweni kwezinto eziphilayo

I-titanium tetraisopropanolate, njengengqikithi ye-"titanium catalytic system" (njengokuhlanganiswa nama-tartrate esters), isetshenziswa ekuphenduleni kwe-epoxidation okungalingani (ukwenziwa kwama-chiral epoxides, ama-intermediate abalulekile emithi);

I-isopropoxide ye-titanium(IV) ivuselela ukusabela kokuminyana kwe-aldol futhi ilawula ngokunembile ukwakheka komkhiqizo, okwenza ufaneleke embonini yamakhemikhali amahle.

III. Insimu Yezimbozo Nezinamathelisi: Ukuthuthukisa ukusebenza kwe-interface yezinto zokwakha

Ngokusebenzisa isici sayo "sebhuloho lezinto eziphilayo" (esinye isiphetho sihlanganiswe nezinto ezingaphili kanti esinye isiphetho sixhunywe nezinto eziphilayo), ukunamathela nokuqina kwezimbozo kanye nezinamathiselo kungathuthukiswa:

Imboni yezingubo: Ama-ejenti okuxhumanisa kanye nabagqugquzeli bokunamathela

Uma kufakwa inani elincane le-tetraisopropyl titanate ezimbozweni ze-acrylic kanye ne-polyurethane coatings, iqembu le-isopropoxy lingasabela namaqembu e-hydroxyl (-OH) kanye ne-carboxyl (-COOH) embozweni ukuze kwakhiwe isakhiwo esixhumene, ngaleyo ndlela kuthuthukiswe ukumelana nesimo sezulu (ukumelana nokuguga kwe-UV), ukumelana namanzi kanye nokuqina kwembozwe.

I-primer yezinsimbi zensimbi ezifana nensimbi ne-aluminium alloy, ekhuthaza ukunamathela kwengubo ebusweni bensimbi futhi inciphise ukuxebuka nokugqwala kwengubo.

Imboni yokunamathela: Thuthukisa amandla okubopha

I-Titanium tetraisopropanolate isetshenziswa “njenge-ejenti yokuxhumanisa” kuma-adhesive e-epoxy resin kanye nama-adhesive e-silicone. Uhlangothi olulodwa luphendula namaqembu e-hydroxyl ebusweni bezinto ezingaphili njengezinsimbi kanye ne-ceramics, kanye nolunye uhlangothi oluxhumene namaketanga e-polymer e-organic ama-adhesive. Khulisa kakhulu amandla okubopha kanye nomswakama kanye nokumelana nokushisa kwama-adhesive ezintweni ezingaphili (njengokupakisha kanye nokubopha izingxenye ze-elekthronikhi).

IV. Ezinye izinjongo ezikhethekile

Ukwelashwa kobuso bensimbi

I-titanium tetraisopropanolate isetshenziselwa ukwelashwa kokungaphazamisi komhlaba kwe-aluminium kanye ne-magnesium alloys. I-TiO₂ ekhiqizwa yi-hydrolysis ye-tetraisopropyl titanate yakha ifilimu yokungaphazamisi ehlanganisiwe ene-oxide ebusweni bensimbi, okuthuthukisa ukumelana nokugqwala kwensimbi (ethatha indawo yokungaphazamisi kwe-chromate yendabuko futhi ibe nobungane kakhulu nemvelo).

Ukulungiswa kwezinto ezibonakalayo

Ngokusebenzisa ubuchwepheshe be-“chemical vapor deposition (CVD)”, umusi we-tetraisopropyl titanate ufakwa ekamelweni lokusabela, lapho ubola khona ebusweni be-substrate (njengengilazi ye-quartz) ukuze wakhe amafilimu e-TiO₂, asetshenziselwa ukulungiselela izihlungi ze-optical kanye nezingubo ezivimbela ukukhanya (zokulawula ukuhanjiswa kokukhanya).

Imboni Yezindwangu: Ama-ejenti okuqeda asebenzayo

I-Titanium(IV) isopropoxideiphendula namaqembu e-hydroxyl ebusweni bemicu yendwangu ukuze yakhe ifilimu ye-TiO₂ ebusweni bemicu, inikeze indwangu izakhiwo zokulwa namagciwane (isebenzisa umphumela we-photocatalytic bactericidal we-TiO₂) kanye nokumelana ne-UV (njengasezindwangu ezivikela ilanga zangaphandle).