Titanium tetraisopropanolateKo te (Tetraisopropyl Titanate), CAS 546-68-9, he matū organotitanium nui, ā, e whakamahia whānuitia ana i roto i ngā ahumahi, i te pūtaiao rauemi me ētahi atu mara. Nā, me titiro tātou ki tēnei hua.
Ngā mōhiohio taketake
| Kaupapa | Ihirangi |
| Ingoa Hainamana | 钛酸四异丙酯、四异丙氧基钛 |
| Ingoa Ingarihi | Titanium tetraisopropanolate; Tetraisopropyl Titanate; Titanium isopropoxide; Titanium(IV) isopropoxide |
| Tau CAS | 546-68-9 |
| MF | C12H28O4Ti |
| MW | 284.22 |
| Hanganga ngota | Ka herea te ngota titanium matua (Ti⁴⁺) ki ngā rōpū isopropoxy e whā (-OCH (CH₃)₂) mā roto i ngā hononga taunga, ā, nō te akomanga matū titanate. |
Ngā āhuatanga matua o te tinana me te matū
Āhua me te āhuaI te pāmahana rūma, he wai mārama, kore tae, he kōwhai mā, he kakara haunga (he rite ki ngā waipiro, ki ngā etera rānei).
Te wairewatangaHe ngāwari te wairewa i roto i ngā whakarewa waro, ka kaha te tauhohe ki te wai – ka tere te waikura hei hanga i te titanium dioxide (TiO₂) me te waipiro isopropyl ((CH₃)₂CHOH), nō reira me penapena, me whakamahi hoki ki te taiao maroke.
Te ira kohua me te ira rewaKo te pāmahana koropupū he tata ki te 220-224℃ (i te pēhanga noa), ā, ko te pāmahana rewa he tata ki te 14℃ (tērā pea ka totoka i raro i te 14℃, ā, ka rewa anō ina whakamahanatia).
Pūmautanga: He tairongo ki te hau, ka mimiti wawe i te makuku o te hau, ā, ka waikura. Ka pirau pea i ngā pāmahana tiketike, ka tukuna he hau whakapataritari.
Ngā whakamahinga matua
Ko te whakamahinga o te titanium tetraisopropanolate e tino whakawhirinaki ana ki ōna āhuatanga matua e toru: te ngāwari o te waikura hei hanga i te hauhā titanium, te hototahitanga rauropi pai, me te mahi whakaterenga. He whānuitia te whakamahinga o te titanium tetraisopropanolate i roto i ngā mara maha pēnei i te hanga rauemi, te whakaterenga ahumahi, ngā paninga, me ngā piripiri. Ko ngā horopaki whakamahinga motuhake koia ēnei e whai ake nei.
I. Te Marae o te Hanga Rauemi: Te Matua hei "mua o te hauhā titanium"
Koinei te whakamahinga matua o te titaniumiv Isopropox IDE. Mā te whakamahi i tana tauhohenga waikura, ka taea te whakarite tika i ngā rauemi titanium dioxide (TiO₂) o ngā āhua me ngā āhuatanga rerekē hei whakatutuki i ngā tono rerekē.
Te whakarite i te hauhā nano-titanium
Te hauotaota o te Titanium(IV)ka rewa ki roto i tētahi whakarewa waro mā te "tikanga sol-gel", kātahi ka āta whakapūpūtia i raro i ngā tikanga ka taea te whakahaere (te whakarerekē i te pH, te pāmahana, me te tere o te whakapūpū) hei hanga i tētahi "sol" ōrite. Whai muri i te whakamaroketanga me te whakapūpūtanga, ka whiwhihia he paura, he kiriata rānei o te titanium dioxide nano-tauine. He nui te horahanga mata motuhake o tēnei momo nano-tio₂ me te mahi photocatalytic tino pai, ā, ka taea te whakamahi mō:
Ngā rauemi whakaahua-whakakorikori: te rongoā i te paru (te whakaiti i ngā poke rauropi), te purenga o te hau (te pirau o te formaldehyde me ngā VOC);
Ngā mea whakapaipai ārai rā: Ko te Titanium tetraisopropanolate hei kaihoko ārai rā ā-tinana (ka taea e te nano-tio ₂ te whakaata i ngā hihi ultraviolet, he tino mārama, ā, kāore e huri hei mā);
Ngā rauemi optoelectronic: Titanium tetraisopropanolate hei whakarite i te paparanga mimiti-mārama o ngā pūtau rā me te kiriata angiangi mahi o ngā taputapu whakaatu karaihe wai.
Ngā paninga mahi uku me te karāhe
Ka whakakotahihia te Titanium(IV) isopropoxide ki ētahi atu tāpiringa (pērā i ngā kaihoko hononga silane) hei hanga i tētahi otinga paninga, ka rehuhia, ka toua rānei ki runga i te mata o ngā uku me te karāhe. I muri i te whakamahana me te whakamaroke, ka hangaia e te TiO₂ i hangaia e te hydrolysis o te tetraisopropyl titanate he paninga mārama he pakeke teitei, he ātete pāmahana teitei me te ātete kakahu, ka taea e:
Whakapai ake i te ātete ki ngā paru o ngā taputapu tēpu uku me ngā taputapu kaukau (whakaiti i te piri o ngā paru hinu);
Whakapai ake i te ātete ki te rakuraku o te karaihe (pēnei i te karaihe tiaki mata waea pūkoro, te karaihe motuka);
Whakakīia te karāhe ki te mahi "horoi-ā-ia-anō" (mā te whakamahi i te āhuatanga whakakorikori-whakaahua o te TiO₂ hei wawahi i te puehu me ngā paru o te mata).
Te hanganga o ngā rauemi mahi e hangai ana ki te titanium
Hei pūtake titanium, ka tauhohe tahi me ētahi atu tote whakarewa (pērā i ngā tote konumohe me ngā tote zirconium) hei whakarite i ngā waikura hiato titanium-konumohe, ngā otinga totoka titanium-zirconium me ētahi atu rauemi, e whakamahia ana i roto i ngā uku pāmahana-tiketike me ngā kaikawe whakakorikori (hei whakarei ake i te pumau me te horahanga mata motuhake o ngā kaikawe).
II. Mara Whakakorikori Ahumahi: Ngā tauhohenga waro whakakorikori whai hua
I runga i te kaha taunga o te ngota titanium matua (Ti⁴⁺) i roto i te porowhita-d kau, he tino pai te Titanium IV Isopropox IDE cas 546-68-9 hei whakakorikori mō ngā momo tauhohenga rauropi, he mea tino pai mō ngā āhuatanga e hiahia ana ki te whiriwhiringa teitei me ngā tauhohenga taha iti:
Ngā kaiwhakaoho mō ngā tauhohenga esterification me te transesterification
I te wā e hanga ana i ngā kapia polyester (pērā i te PET me te PBT), mā te whakakapi i ngā whakakorikori waikawa tuku iho (pērā i te waikawa whanariki) ka tere ake te tauhohenga esterification i waenga i ngā waikawa carboxylic me ngā waipiro, ka whakaiti i ngā hua taha (pērā i te maroke o ngā waipiro), ā, he ngāwari te wehewehe i te whakakorikori mai i ngā hua, ā, ka whakapai ake i te parakore o te kapia.
Titanium isopropoxide cas 546-68-9Ka whakatere i ngā tauhohenga transesterification (pēnei i te tauhohenga o ngā esters iti iho me ngā waipiro teitei ake hei hanga i ngā esters teitei ake) i roto i te hanganga o ngā kakara me ngā kakara me ngā takawaenga rongoā, ka whakarei ake i te whai huatanga o te tauhohenga me te hua o te hua.
Te whakaterenga whiriwhiri i roto i te hanganga rauropi
Ko te Titanium tetraisopropanolate, hei uho o te "pūnaha whakaterenga titanium" (pērā i te whakakotahitanga me ngā esters tartrate), e whakamahia ana i roto i ngā tauhohenga epoxidation kore taurite (mō te hanganga o ngā epoxides chiral, ngā takawaenga rongoā matua);
Ka whakakorikori te titanium(IV) isopropoxide i ngā tauhohenga whakapūpū aldol, ā, ka whakahaere tika i te hanganga o te hua, kia pai ai mō te umanga matū pai.
III. Te Marae Paninga me ngā Piripiri: Te whakarei ake i te mahi atanga o ngā rauemi
Mā te whakamahi i te āhuatanga "piriti waro-kore-waro" (kotahi pito e herea ana ki ngā rauemi kore-waro, ko tetahi pito e honoa ana ki ngā rauemi waro), ka taea te whakapai ake i te piri me te pakari o ngā paninga me ngā piripiri:
Ahumahi paninga: Ngā kaihoko honohono me ngā kaiwhakatairanga piri
Mā te tāpiri i tētahi iti o te tetraisopropyl titanate ki ngā paninga kiriaku me ngā paninga polyurethane, ka taea e te rōpū isopropoxy te tauhohe ki ngā rōpū hydroxyl (-OH) me te carboxyl (-COOH) i roto i te paninga hei hanga i tētahi hanganga honohono, ā, ka whakarei ake i te ātete huarere (ātete ki te koroheketanga UV), te ātete wai me te pakeke o te paninga.
He paninga tuatahi mō ngā papa whakarewa pēnei i te maitai me te konumohe, e whakatairanga ana i te piri o te paninga ki te mata whakarewa, ā, e whakaiti ana i te kiri me te waikura o te paninga.
Ahumahi piri: Whakapai ake i te kaha o te piri
Ka whakamahia te Titanium tetraisopropanolate hei "kaihoko hononga" i roto i ngā piri kapia epoxy me ngā piri silicone. Ka tauhohe tetahi pito ki ngā rōpū hydroxyl i runga i te mata o ngā papa kore-waro pēnei i ngā konganuku me ngā uku, ā, ka hono tetahi pito ki ngā mekameka polymer waro o ngā piri. Ka whakanui ake i te kaha o te hononga me te ātete makuku me te wera o ngā piri ki ngā rauemi kore-waro (pēnei i te takai me te hononga o ngā wāhanga hiko).
IV. Ētahi atu kaupapa motuhake
Te maimoatanga mata whakarewa
Ka whakamahia te Titanium tetraisopropanolate mō te maimoatanga whakakore i te mata o ngā koranu konumohe me te konupora. Ko te TiO₂ i hangaia e te waikura o te tetraisopropyl titanate ka hanga he kiriata whakakore i te mata me te waikura i runga i te mata whakarewa, ka whakarei ake i te ātete ki te waikura o te whakarewa (ka whakakapi i te whakakorenga chromate tuku iho, ā, he pai ake te taiao).
Te whakarite i ngā rauemi whatu
Mā te hangarau "whakatakoto kohu matū (CVD)", ka whakaurua te kohu o te tetraisopropyl titanate ki roto i te rūma tauhohenga, ka pirau ki te mata o te papa (pērā i te karāhe quartz) hei hanga i ngā kiriata TiO₂, e whakamahia ana hei whakarite i ngā tātari whatu me ngā paninga ārai-whakaata (hei whakahaere i te whakawhiti mārama).
Ahumahi kakahu: Ngā kaihoko whakaoti mahi
Te hauotaota o te Titanium(IV)Ka tauhohe ki ngā rōpū hydroxyl i runga i te mata o ngā muka kakahu hei hanga i tētahi kiriata TiO₂ i runga i te mata o te muka, ka whakawhiwhia ki te kakahu ngā āhuatanga patu huakita (mā te whakamahi i te pānga patu huakita photocatalytic o TiO₂) me te ātete UV (pērā i ngā kakahu tiaki rā o waho).
Wā tuku: Hepetema-18-2025