Hexamethlaslisilazane (HMDS) CAS 999-97-3

Cov khoom siv tshuaj yuav siv los hloov kho cov npoo ntawm liposomes lossis polymer nanoparticity thiab kev txhim kho biocompatibility thiab hom phiaj. Piv txwv li, kev sib txuam ntawm kev hloov kho tiv thaiv-} Cancer Yeeb Tshuaj hauv cov nqaij mos yog nce los ntawm 40%.
Cov tshuaj tua kab mob
Azvudine: HMDs txo qhov kev pheej hmoo ntawm cov tshuab hluav taws xob hauv cov hluavtaws ntawm cov tshuaj tiv thaiv kev lag luam tshiab los ntawm ntau {{}} Cov kev tiv thaiv kev tiv thaiv ntau kauj ruam. Cov kev tshawb fawb preclinical tau qhia tias cov lus qhia txo lub impurity cov ntsiab lus ntawm intermediates los ntawm 2.3% rau 0.3%, txhawb nqa loj} muaj peev xwm ntawm ntau dua 50 tons.

Kev Lag Luam Semiconductor: Tus Kws Tshaj Lij "Kev Ua Haujlwm" ntawm Photolithography Cov Tshuab

Nyob rau hauv lub teb semiconductor,Hexamethlslasilazane (Hmws), raws li tus neeg sawv cev sib raug zoo rau kev ua duab etchants, txhim kho nti tsim kho qhov yog los ntawm cov kev hloov kho saum npoo av, suav rau 20% ntawm cov ntawv thov. Nws cov tub ntxhais kev ua yog:

Deg Hydrophobicity Kho
HDS tau txau mus rau saum npoo ntawm Silicon Wafers hauv cov roj lossis roj ua kom muaj zog ntawm 20 qib Lub qhov tob tob ntawm qhov tob ntawm etching daws los ntawm 80%, thiab ua kom cov corrosion tsis kam.

Cov ntawv thov hluav taws xob cov khoom lag luam
Hauv cov qib hmDs (huv ntau dua los yog sib npaug rau 99.999%) tau siv dav hauv liaj teb xws li lub tiaj tus tswv yim qhia thiab nti tsim. Piv txwv li, hauv 12 nti Wafefer ua,

Organosilicon cov ntaub ntawv: MANFifiers rau kev txhim kho kev ua tau zoo

HMDS cov nyiaj tau rau 3% ntawm daim ntawv thov hauv kev ua haujlwm ntawm Organicilicon, thiab yog cov tseem ceeb ntxiv rau cov khoom siv xws li Silicone roj hmab, silicone roj, thiab Silicone Resin

Silicone Roj Hmab Qhov Zog
Hmws, raws li cov neeg sawv cev sealing, reacts nrog cov pab pawg hydroxyl nyob rau thaum xaus ntawm Silicone roj hmab molecular khi los ua tus ntoo khaub lig ruaj khov Cov kev sim tau qhia tias ntxiv 2 xyoos rau cov roj hmab silicone nce ntxiv los ntawm 40%, nthuav dav lub zog ntawm 40%, thiab txo nws cov kev teeb tsa compression teeb los ntawm 50%.

Hydrophobic kho ntawm cov roj silicone
Hma rinercts nrog cov pab pawg sib tsoo ntawm cov roj silanolic ntawm cov roj fydlicone los ntawm 30℃rau 150℃thiab txo lub sijhawm defoaming los ntawm 60%. Nws yog dav siv nyob rau hauv txheej txheej, tshuaj pleev ib ce thiab lwm thaj teb.
Kev Siv Kub Kub Uldant Kub Additive
Hmws sib xyaw ua ke nrog lubricating roj lwg roj molecules los tsim zaj duab xis tiv thaiv, txo lub zog oxidation los ntawm 2 zaug, thiab nce thermal stability mus rau 300 degree. Nws yog tsim nyog rau high - qhov chaw ib puag ncig xws li tshuab hluav taws xob.

Khoom Siv Khoom Ua Si Ntiv Tes: Tus lej "Tswv Yim" rau kev hloov kho ua haujlwm

Hmws ua tiav kev ua tau zoo los ntawm condensing cov pab pawg hydroxyl ntawm cov khoom siv hluav taws xob ntawm cov khoom sib xyaw ua ke ntawm cov lej ntawm 8%

Khoom Hmoov Ua Khoom
Carbon Dub:
Titanium hmoov: Kev kho hydrophobicity kho kom txo cov nqi ntawm titanium hmoov hauv 90%, ua kom haum rau 3D luam ntawv hlau hmoov npaj.

Kev Hloov Pauv Fiber Ntau Hloov
Hmab kho mob ntawm silicon carbide fibers ua si silicon nitride tiv thaiv txheej, ua kom muaj zog txog 1500℃thiab lub zog khaws nyiaj khaws cia ntawm 65% mus rau 85%. Nws yog dav siv nyob rau hauv Aerospace cov khoom siv.

Txoj kev 1:

Ntxiv 630ml trimethylchlane, 250ml hexamethlasilane, 500ml benzene, 500ml xyo rau hauv cov tshuaj reactor nrog agitator, ntsuas cua sov thiab do tusyees. Cov tshuaj ammooia tau qhia rau kev tawm tsam ammoniation, thiab cov kev hloov ntawm cov khoom siv hauv lub xeev hauv cov txheej txheem ntawm cov txheej txheem ammonia gas. Siv zog nruj me ntsis ntawm ammonia roj ntws, thiab cov tshuaj tiv thaiv yuav tsum tsis txhob nrawm nrawm los tiv thaiv cov ntsev tsis huv los ntawm kev ua yeeb yaj kiab. Tswj cov tshuaj tiv thaiv kub tsawg dua lossis sib npaug rau 80℃thiab cov tshuaj tiv thaiv qis dua lossis sib npaug rau 0.2mpa. Tom qab cov tshuaj tiv thaiv ammoniation, txias cov khoom siv rau 35℃thiab ntxiv 800mL dej rau thawj zaug ntxuav. Tom qab ntxuav, sawv ntsug li 5 feeb thiab tshem tawm NH4C auchous daws nyob rau hauv qab txheej hauv theem. Ntxiv 400mL ntawm 30% poov tshuaj hydroundium daws los ntxuav cov organic theem. Tom qab ntxuav, cia nws sawv ntsug li 5 feeb, thiab tom qab ntawd tom qab theem qis dua theem. Cov organic theem yog ntxuav nrog 800ml dej rau zaum ob. Tom qab theem sib cais, cov khoom siv sab saud yog li hmoov. Thaum lub sijhawm ntxuav, ntxuav dej ua dej ntxuav thawj zaug yuav ntxhua khaub ncaws kom ntxuav tau thib ob tom qab alkali ntxuav. Cov khoom lag luam nyoos tau xa mus rau distillation ntauwd los cais cov tshuaj tiv thaiv thiab cov khoom lag luam, thiab thaum kawgHexamethlslisilazaneNrog cov ntsiab lus siab dua lossis sib npaug rau 99% yog tau nrog cov txiaj ntsig ntawm 89.99%.

Txoj kev 2:

Ib txoj kev rau kev npaj hexamethlasiloxane los ntawm hexamethylasiloxane suav nrog cov kauj ruam hauv qab no:

1) Tso 1000 kg hexamethloxane rau lub nkoj uas muaj zog ntawm 1500l, pub qhuav hlab tshuaj rau cov tshuaj tiv thaiv, thiab tsim cov kab mob limhylorosilane thiab dej; Lub siab nyob rau hauv lub nkoj kis tau tswj hwm ntawm 0.2Mpa, qhov ntsuas kub yog 30 degree, thiab lub nkoj tawm tsam yog 65R / min. Thaum lub sij hawm cov tshuaj tiv thaiv, cov dej tsim tawm tau tso tawm hauv qab ntawm lub nkoj lij choj.

Thaum qhov loj ntawm Trimethylchlasilane hauv kev sib xyaw ntawm Hexamethlydoxane thiab Chimethylchloxane thiab chim ntawm cov tshuaj sib tov, tsis txhob dhau hydrogen chloride roj, thiab cov tshuaj tiv thaiv xaus.

2) hloov qhov sib tov ntawm hexamethlasiloxane thiab chimethylchloilane tau txais saum toj no rau lwm reactor nrog lub peev xwm ntawm 3000l thiab do nws. Sau tus reactor nrog qhuav ammonia los tsim hexamethlasiloxane thiab ammonium chloride. Lub siab nyob rau hauv tus reactor yog kwv yees li 0.25Mpa, qhov ntsuas kub yog 35 degree, thiab lub sijhawm tshuaj tiv thaiv yog 5h.

3) Ammonium chloride nyob rau hauv cov tshuaj tiv thaiv cov khoom lag luam hauv kauj ruam 2) tau sib cais los ntawm ammonium chloride sib cais kom tshem tawm hexamethlisiloxane thaum kawg tau txaisHexamethlslasilazane (Hmws).