amakuru

Titanium tetraisopropanolate(Tetraisopropyl Titanate), CAS 546-68-9, ni ikintu cy'ingenzi cya organotitanium kandi gikoreshwa cyane mu nganda, mu bumenyi bw'ibikoresho n'ahandi. Noneho reka turebere hamwe iki gicuruzwa.

Amakuru y'ibanze

Imiterere y'ingenzi ya fizikiki

Isura n'imiterere: Mu bushyuhe bw'icyumba, ni amazi abonerana adafite ibara cyangwa umuhondo werurutse afite impumuro mbi (nk'iya alcool cyangwa ethers).

Gushonga: Bishongesha byoroshye mu bintu bishongesha ibintu, bigahura cyane n'amazi - bizahita bishonga bikabyara dioxyde ya titanium (TiO₂) na alcohol ya isopropyl ((CH₃)₂CHOH), bityo bigomba kubikwa no gukoreshwa ahantu humutse.

Aho kubira n'aho gushonga: Aho kubira ni hafi 220-224℃ (ku gitutu gisanzwe), naho aho gushonga ni hafi 14℃ (ishobora gukomera munsi ya 14℃ kandi ishobora kongera gushonga iyo ishyushye).

Gutuza: Ifite ubushobozi bwo guhumeka neza mu kirere, ifata amazi mu kirere kandi igahita ihinduka hydrolysis. Ishobora kubora mu bushyuhe bwinshi igasohora imyuka ikarishye.

Imikoreshereze y'ingenzi

Gukoresha titanium tetraisopropanolate bishingiye cyane ku bintu bitatu by'ingenzi: hydrolysis yoroshye gukora titanium dioxide, guhuza neza na organic, n'imikorere ya catalytic. Titanium tetraisopropanolate ikoreshwa cyane mu nzego nyinshi nko gukora ibikoresho, catalysis y'inganda, coating, na kole. Uburyo bwihariye bwo kuyikoresha ni ubu bukurikira:

I. Uburyo bwo gukora ibikoresho: Core nk'"umusemburo wa titanium dioxide"

Iyi ni yo mikoreshereze nyamukuru ya titaniniv Isopropox IDE. Binyuze mu buryo bwayo bwo guhirima, ibikoresho bya titaniyumu (TiO₂) bifite imiterere n'imiterere itandukanye bishobora gutegurwa neza kugira ngo bihuze n'ibikenewe bitandukanye.

Gutegura nano-titanium dioxide

Isopropoxide ya Titanium (IV)Ishongeshwa mu kintu cy’umwimerere binyuze mu buryo bwa "sol-gel", hanyuma igashyirwamo amazi buhoro buhoro mu buryo bugenzurwa (guhindura pH, ubushyuhe, n'igipimo cya hydrolysis) kugira ngo ikore "sol" imwe. Nyuma yo kongera kumisha no gukaranga, ifu ya titanium dioxide cyangwa firime iboneka. Ubu bwoko bwa nano-tio ₂ bufite ubuso bwihariye kandi bufite imikorere myiza ya photocatalytic, kandi bushobora gukoreshwa muri:

Ibikoresho bikoresha fotokatalisiti: gutunganya imyanda (kwangiza imyanda ikomoka ku bimera), gusukura umwuka (kubora formaldehyde na VOC);

Amavuta yo kwisiga ku zuba: Titanium tetraisopropanolate nk'umuti urinda izuba ku ruhu (nano-tio ₂ ishobora kugaragaza imirasire ya ultraviolet, ifite urumuri rwinshi kandi ntihinduka umweru);

Ibikoresho bya elegitoroniki: Titanium tetraisopropanolate yo gutegura urwego rufata urumuri rw'uturemangingo tw'izuba hamwe n'agace gato k'ibikoresho byo kwerekana kristu y'amazi.

Irangi rikoreshwa mu gusiga irangi n'ikirahure

Isopropoxide ya Titanium (IV) ivangwa n'izindi nyongeramusaruro (nk'ibice bihuza silane) kugira ngo bikore umuti wo gusiga, hanyuma ugaterwa cyangwa ukinjizwa ku buso bwa keramike n'ibirahuri. Nyuma yo gushyushya no gukonja, TiO₂ ikorwa na hydrolysis ya tetraisopropyl titanate ikora igitambaro kibonerana gifite ubukana bwinshi, ubushyuhe bwinshi n'ubudasaza, gishobora:

Ongera imbaraga zo kwirinda ibara ry'ibikoresho byo ku meza bya keramik n'ibyo mu bwiherero (gabanya ibara ry'amavuta rifatana);

Ongera imbaraga zo kurwanya ikirahure (nk'ikirahure kirinda ecran ya terefone igendanwa, ikirahure cy'imodoka);

Shyira ikirahure gifite imikorere yo "kwisukura" (ukoresheje imiterere ya TiO₂ yo gukaraba kugira ngo uboze ivumbi n'ibizinga byo hejuru).

Gutunganya ibikoresho bikora bikozwe muri titaniyumu

Nk'isoko ya titaniyumu, ikorana n'indi myunyu y'icyuma (nk'umunyu wa aluminiyumu n'umunyu wa zirconium) kugira ngo itegure okiside za titaniyumu-aluminium, ibisubizo bikomeye bya titaniyumu-zirconium n'ibindi bikoresho, bikoreshwa mu byuma bishyuha cyane n'ibitwara katasiyo (kugira ngo yongere ubusugire n'ubuso bwihariye bw'ibitwara).

II. Urwego rwo gusesengura ibikoresho by'inganda: Uburyo bwiza bwo gukora ibikorwa by'ingufu mu by'umwimerere

Ishingiye ku bushobozi bwo guhuza imiterere y’ikirere bwa atome ya titaniyumu yo hagati (Ti⁴⁺), Titanium IV Isopropox IDE cas 546-68-9 ni igikoresho cyiza cyane cyo gukora ibintu bitandukanye bya organic, cyane cyane mu bihe bisaba guhitamo cyane no gukora ibintu bike:

Katalysts zo gupima no guhindura imiterere y'ibiceri

Mu gukora resine za polyester (nka PET na PBT), gusimbuza katalysts gakondo za aside (nka aside sulfurique) bishobora kwihutisha uburyo bwo gupima aside carboxylic na alcohols, bigabanye umusaruro (nk'amazi ya alcohols), kandi katalysts zoroshye gutandukana n'ibicuruzwa, bityo resine irushaho kuba nziza.

Titaniumiv isopropoxide cas 546-68-9itera imbaraga mu gukora uburyohe n'impumuro nziza hamwe n'ibindi binyabutabire bikomoka ku bimera (nk'uburyohe bwa ester nke hamwe na alcool nyinshi kugira ngo bikore ester nyinshi) mu gukora uburyohe n'impumuro nziza hamwe n'ibindi binyabutabire bikomoka ku miti, bikongera ubushobozi bwo gukora neza no gutanga umusaruro.

Katalyse itoranyije mu guhuza ibinyabuzima

Titanium tetraisopropanolate, nk'ishingiro rya "titanium catalytic system" (nk'iyo ihujwe na tartrate esters), ikoreshwa mu buryo butagira ingano bwo gupima (mu gukora epoxydes za chiral, imiti y'ingenzi ikoreshwa mu buvuzi);

Isopropoxide ya titanium (IV) itera imbaraga mu gukora ibintu bivanze na aldol kandi ikagenzura neza imiterere y'umusaruro, bigatuma uba ukwiriye inganda nziza z'ibinyabutabire.

III. Aho gusiga no gukodesha: Kongera imikorere y'ibikoresho

Mu gukoresha uburyo bwa "ikiraro cy’ibimera n’ibimera" (igice kimwe gifatanye n’ibikoresho bidafite umwimerere n’ikindi gice gifatanye n’ibikoresho bidafite umwimerere), uburyo ibirahure n’ibikomo biramba bishobora kunozwa:

Inganda zikora irangi: Ibikoresho bihuza ibyuma n'ibikoresho bifasha mu gufatana

Iyo wongeyeho ingano nto ya tetraisopropyl titanate ku bisigazwa bya acrylic na polyurethane, itsinda rya isopropoxy rishobora gukorana n'amatsinda ya hydroxyl (-OH) na carboxyl (-COOH) mu gishishwa kugira ngo rikore imiterere ifatanye, bityo byongera ubudahangarwa bw'ikirere (ubudahangarwa bw'imirasire y'izuba), ubudahangarwa bw'amazi n'ubukomere bw'igishishwa.

Igikoresho cyo gushushanya ku byuma nk'icyuma n'aluminiyumu, gifasha ko igitambaro gifatana n'ubuso bw'icyuma kandi kikagabanya gushwanyagurika no kwangirika kw'igitambaro.

Inganda zikora ibintu bifatanye: Ongera imbaraga zo guhuza

Titanium tetraisopropanolate ikoreshwa nk' "umuti uhuza" mu makoma ya epoxy resin na kole za silikoni. Igice kimwe gihura n'amatsinda ya hydroxyl ku buso bw'ibintu bidafite umwimerere nk'ibyuma na ceramic, n'ikindi gice gihuza n'iminyururu ya polymer y'umwimerere y'amakoma. Yongera cyane imbaraga zo guhuza n'ubushuhe n'ubushyuhe bw'amakoma ku bikoresho bidafite umwimerere (nk'ibipakishwa no guhuza ibice by'ikoranabuhanga).

IV. Izindi ntego zihariye

Gutunganya ubuso bw'icyuma

Titanium tetraisopropanolate ikoreshwa mu kuvura ubwiyongere bw'ubuso bwa aluminiyumu na manyeziyumu. TiO₂ ikorwa na hydrolysis ya tetraisopropyl titanate ikora filime ihuza ubwiyongere bw'ubuso hamwe na okiside ku buso bw'icyuma, yongera ubudahangarwa bw'icyuma (bisimbuza ubwiyongere bw'ubuyobe bwa chromate kandi ikaba nziza ku bidukikije).

Gutegura ibikoresho by'urumuri

Binyuze mu ikoranabuhanga rya "chemical vapor deposition (CVD)", umwuka wa tetraisopropyl titanate winjizwa mu cyumba cy'ibisubizo, aho uborera hejuru y'ubutaka (nk'ikirahure cya quartz) kugira ngo ukore filime za TiO₂, zikoreshwa mu gutegura filters z'urumuri n'imyambaro irwanya urumuri (yo kugenzura uburyo urumuri ruhererekanwa).

Inganda z'imyenda: Ibikoresho bikora neza byo kurangiza imyenda

Isopropoxide ya Titanium (IV)Ikorana n'amatsinda ya hydroxyl ku buso bw'imigozi y'imyenda kugira ngo ikore agahu ka TiO₂ ku buso bw'imigozi, igaha umwenda ubushobozi bwo kurwanya bagiteri (ikoresha ingaruka zo kwica bagiteri za TiO₂) no kurwanya UV (nk'uko bigenda ku myenda yo hanze irinda izuba).