labarai

Titanium tetraisopropanolate(Tetraisopropyl Titanate), CAS 546-68-9, wani muhimmin sinadari ne na organotitanium kuma ana amfani da shi sosai a masana'antu, kimiyyar kayan aiki da sauran fannoni. Yanzu bari mu dubi wannan samfurin.

Bayanan asali

Babban halayen kimiyyar lissafi

Bayyanar da yanayi: A zafin ɗaki, ruwa ne mai haske mara launi zuwa rawaya mai haske tare da ƙamshi mai kaifi (kamar barasa ko ethers).

Narkewa: Yana narkewa cikin sauƙi a cikin sinadarai masu narkewa na halitta, yana amsawa da ƙarfi da ruwa - zai yi hydrolyze da sauri don samar da titanium dioxide (TiO₂) precipitate da isopropyl alcohol ((CH₃)₂CHOH), don haka ya kamata a adana shi a kuma yi amfani da shi a cikin busasshiyar muhalli.

Wurin tafasa da wurin narkewa: Tafasar ruwan yana da kusan 220-224℃ (a matsin lamba na yau da kullun), kuma wurin narkewa yana da kusan 14℃ (yana iya taurare ƙasa da 14℃ kuma yana iya sake narkewa bayan dumamawa).

Kwanciyar hankali: Yana da sauƙin shaƙar danshi daga iska kuma yana shiga cikin ruwa. Yana iya ruɓewa a yanayin zafi mai yawa kuma yana fitar da iskar gas mai ban haushi.

Babban amfani

Amfani da titanium tetraisopropanolate ya dogara sosai akan manyan halaye guda uku: sauƙin hydrolysis don samar da titanium dioxide, kyakkyawan jituwa da kwayoyin halitta, da kuma aikin catalytic. Ana amfani da titanium tetraisopropanolate sosai a fannoni da yawa kamar haɗakar abu, catalysis na masana'antu, shafi, da manne. Takamaiman yanayin aikace-aikacen sune kamar haka:

I. Fagen Haɗa Kayan Aiki: Core a matsayin abin da ke haifar da "titanium dioxide"

Wannan shine babban amfani da titaniumiv Isopropox IDE. Ta hanyar amfani da hydrolysis reaction ɗinsa, ana iya shirya kayan titanium dioxide (TiO₂) na siffofi da halaye daban-daban don biyan buƙatu daban-daban.

Shiri na nano-titanium dioxide

Titanium (IV) isopropoxideAna narkar da shi a cikin wani sinadari na halitta ta hanyar "hanyar sol-gel", sannan a hankali a zuba ruwa a cikin ruwa a ƙarƙashin yanayi mai sarrafawa (daidaita pH, zafin jiki, da ƙimar hydrolysis) don samar da "sol" iri ɗaya. Bayan ƙarin bushewa da calcination, ana samun foda ko fim na titanium dioxide na sikelin nano. Wannan nau'in nano-tio ₂ yana da babban yanki na saman da kyakkyawan aikin photocatalytic, kuma ana iya amfani da shi don:

Kayan aikin photocatalytic: magance najasa (lalacewar gurɓatattun abubuwa na halitta), tsarkake iska (rushewar formaldehyde da VOCs);

Kayan kwalliyar kariya daga rana: Titanium tetraisopropanolate a matsayin maganin kariya daga rana (nano-tio ₂ na iya nuna hasken ultraviolet, yana da cikakken haske kuma baya canzawa zuwa fari);

Kayan aikin lantarki: Titanium tetraisopropanolate don shirya layin da ke ɗaukar haske na ƙwayoyin hasken rana da kuma siririn fim ɗin na'urorin nuni na lu'ulu'u masu aiki.

Rufin aiki na yumbu da gilashi

Ana haɗa isopropoxide na titanium (IV) tare da wasu ƙarin abubuwa (kamar sinadaran haɗin silane) don samar da maganin shafawa, wanda daga nan ake fesawa ko tsoma shi a saman yumbu da gilashi. Bayan dumama da wartsakewa, TiO₂ da aka samar ta hanyar hydrolysis na tetraisopropyl titanate yana samar da wani shafi mai haske tare da tauri mai yawa, juriya ga zafin jiki mai yawa da juriya ga lalacewa, wanda zai iya:

Ƙara juriyar tabo na kayan tebur na yumbu da kayan wanka (rage mannewar tabon mai);

Ƙara juriyar karce na gilashi (kamar gilashin kariya daga allon wayar hannu, gilashin mota);

Gilashin da aka yi amfani da shi wajen tsaftace kansa (yana amfani da kayan aikin photocatalytic na TiO₂ don lalata ƙurar saman da tabo).

Haɗa kayan aiki masu amfani da aka yi da titanium

A matsayin tushen titanium, yana yin aiki tare da sauran gishirin ƙarfe (kamar gishirin aluminum da gishirin zirconium) don shirya titanium-aluminum composite oxides, mafita mai ƙarfi na titanium-zirconium da sauran kayayyaki, waɗanda ake amfani da su a cikin yumbu mai zafi da masu ɗaukar abubuwan kara kuzari (don haɓaka kwanciyar hankali da takamaiman yankin saman masu ɗaukar kaya).

II. Filin Catalysis na Masana'antu: Ingancin halayen ƙwayoyin halitta masu haɓaka catalytic

Dangane da ikon daidaita yanayin da babu komai a cikin atom ɗin titanium na tsakiya (Ti⁴⁺), Titanium IV Isopropox IDE cas 546-68-9 kyakkyawan mai haɓaka yanayi ne ga nau'ikan halayen halitta daban-daban, musamman ma ya dace da yanayi waɗanda ke buƙatar babban zaɓi da ƙarancin halayen gefe:

Masu haɓaka don halayen esterification da transesterification

Lokacin da ake haɗa resin polyester (kamar PET da PBT), maye gurbin sinadaran acidic na gargajiya (kamar sulfuric acid) na iya hanzarta amsawar esterification tsakanin carboxylic acid da alcohols, rage abubuwan da suka lalace (kamar bushewar giya), kuma mai haɓaka yana da sauƙin raba shi da samfuran, ta haka yana inganta tsarkin resin.

Titaniumiv isopropoxide cas 546-68-9yana haɓaka halayen transesterification (kamar amsawar ƙananan esters tare da manyan barasa don samar da esters mafi girma) a cikin haɗakar dandano da ƙamshi da tsaka-tsakin magunguna, yana haɓaka ingancin amsawa da yawan samfurin.

Zaɓaɓɓen catalysis a cikin hadadden kwayoyin halitta

Ana amfani da Titanium tetraisopropanolate, a matsayin tushen "tsarin titanium catalytic" (kamar a hade tare da tartrate esters), a cikin halayen epoxidation marasa daidaituwa (don haɗa chiral epoxides, manyan hanyoyin magunguna);

titanium (IV) isopropoxide yana ƙarfafa halayen condensation na aldol kuma yana sarrafa tsarin samfurin daidai, wanda hakan ya sa ya dace da masana'antar sinadarai masu kyau.

III. Rufi da Manne: Inganta aikin haɗin kayan aiki

Ta hanyar amfani da fasalin "gadar da ba ta da sinadarai masu rai" (ɗaya gefen an haɗa shi da kayan da ba su da rai, ɗayan kuma ƙarshen an haɗa shi da kayan halitta), ana iya inganta mannewa da dorewar shafa da mannewa:

Masana'antar shafa: Wakilan haɗin gwiwa da masu haɓaka mannewa

Idan aka ƙara ƙaramin adadin tetraisopropyl titanate a cikin fenti na acrylic da fenti na polyurethane, ƙungiyar isopropoxy za ta iya amsawa tare da ƙungiyoyin hydroxyl (-OH) da carboxyl (-COOH) a cikin murfin don samar da tsari mai alaƙa, ta haka za a haɓaka juriyar yanayi (juriyar tsufa ta UV), juriyar ruwa da taurin murfin.

Firam ɗin ƙarfe kamar ƙarfe da ƙarfe mai ƙarfe, yana haɓaka mannewar murfin a saman ƙarfe da kuma rage barewa da tsatsa a shafi.

Masana'antar mannewa: Inganta ƙarfin haɗin gwiwa

Ana amfani da titanium tetraisopropanolate a matsayin "wakilin haɗin gwiwa" a cikin manne na epoxy resin da manne na silicone. Ɗayan ƙarshen yana amsawa da ƙungiyoyin hydroxyl a saman abubuwan da ba su da tsari kamar ƙarfe da yumbu, ɗayan ƙarshen kuma yana haɗuwa da sarƙoƙin polymer na halitta na manne. Yana ƙara ƙarfin haɗin gwiwa da danshi da juriyar zafi na manne ga kayan da ba su da tsari (kamar don marufi da haɗa kayan lantarki).

IV. Sauran dalilai na musamman

Maganin saman ƙarfe

Ana amfani da titanium tetraisopropanolate don maganin aluminum da magnesium passivation a saman. TiO₂ da hydrolysis na tetraisopropyl titanate ya samar yana samar da wani fim mai haɗakar passivation tare da oxide a saman ƙarfe, yana ƙara juriyar tsatsa na ƙarfe (yana maye gurbin chromate passivation na gargajiya kuma yana da kyau ga muhalli).

Shiri na kayan gani

Ta hanyar fasahar "sinadarin adana tururin sinadarai (CVD)", ana shigar da tururin tetraisopropyl titanate cikin ɗakin amsawa, inda yake ruɓewa a saman substrate (kamar gilashin quartz) don samar da fina-finan TiO₂, waɗanda ake amfani da su don shirya matatun gani da kuma rufin hana haske (don daidaita watsa haske).

Masana'antar yadi: Kayan aikin kammalawa na aiki

Titanium (IV) isopropoxideYana yin hulɗa da ƙungiyoyin hydroxyl a saman zare na yadi don samar da fim ɗin TiO₂ akan saman zare, yana ba masakar da kaddarorin kashe ƙwayoyin cuta (ta amfani da tasirin kashe ƙwayoyin cuta na photocatalytic na TiO₂) da juriyar UV (kamar a cikin yadudduka masu kariya daga rana a waje).