Tshuaj txhuam hniav yog qhov tsis tseem ceeb hauv peb lub neej txhua hnub. Txhawm rau kom ntseeg tau tias cov tshuaj txhuam hniav yuav ua tau zoo ntxuav hniav thaum siv thaum cov neeg tsim khoom siv zoo rau cov tshuaj txhuam hniav. Sodium carboxymethyl cellulose (cmc) yog ib tug ntawm lawv.
1. Lub luag haujlwm ntawm tuab dua
Ua ntej tshaj plaws, lub luag haujlwm tseem ceeb ntawm CMC hauv cov tshuaj txhuam hniav yog ua cov tuab tuab. Cov tshuaj txhuam hniav yuav tsum muaj qhov tsim nyog sib xws yog kom nws tuaj yeem yooj yim nyem thiab tusyees thov rau tus txhuam hniav. Yog tias cov tshuaj txhuam hniav yooj yim dhau, nws yuav yooj yim plam tawm ntawm cov txhuam hniav thiab cuam tshuam rau nws siv; Yog tias nws yog tuab heev, nws yuav nyuaj rau nyem tawm thiab yuav tsis xis nyob thaum siv lub qhov ncauj. CMC tuaj yeem muab cov tshuaj txhuam hniav txoj cai viscosity txoj cai los ntawm nws cov khoom siv ua tau zoo heev, ua rau nws yooj yim rau cov hniav thaum txhuam hniav kom ntseeg tau cov nyhuv ntxuav.
2. Lub luag haujlwm ntawm stabilizer
Thib ob, CMC kuj muaj lub luag haujlwm ntawm lub stabilizer. Cov khoom xyaw rau hauv cov tshuaj txhuam hniav feem ntau suav nrog dej, cov tshuaj tua pov tseg, ua rau cov tshuaj txhuam hniav tsis ruaj khov, yog li cuam tshuam rau kev siv cov nyhuv thiab khoom lag luam zoo. CMC muaj peev xwm tswj tau cov khoom xyaw tsis zoo ntawm cov tshuaj txhuam hniav ntawm cov khoom xyaw, thiab ua kom cov tshuaj txhuam hniav thiab kev ua tau zoo ntawm cov tshuaj txhuam hniav.
3. Txhim kho kev ntxhib los mos thiab saj
CMC kuj tseem tuaj yeem txhim kho cov tshuaj txhuam hniav thiab saj ntawm ntawm cov tshuaj txhuam hniav. Thaum txhuam hniav, cov tshuaj txhuam hniav sib xyaw nrog cov qaub ncaug hauv lub qhov ncauj los ua cov ntaub so mos uas npog cov hniav thiab cov zaub mov seem ntawm cov hniav. Kev siv CMC ua rau no muab tshuaj txhuam thiab ntau yam kev hnav khaub ncaws, txhim kho kev nplij siab thiab kev ua kom huv ntawm kev txhuam hniav. Tsis tas li ntawd, CMC tseem tuaj yeem pab txo cov dryness thaum siv cov tshuaj txhuam hniav, ua rau cov neeg siv khoom noj kom zoo dua thiab qab ntxiag.
4. Kev cuam tshuam ntawm biocompatibility
CMC yog cov khoom siv nrog cov biocompatibility zoo thiab yuav tsis irrate cov ntaub so ntswg, yog li nws muaj kev nyab xeeb siv tshuaj txhuam hniav. CMC muaj cov qauv molec muaj ib qho zoo ib yam li cog cellulose thiab tuaj yeem yog qee qhov tsis zoo los ntawm tib neeg lub cev, uas txhais tau tias nws tsis muaj kev phom sij rau tib neeg lub cev. Ib qho ntxiv, tus nqi ntawm CMC siv yog tsawg, feem ntau tsuas yog 1-2% ntawm tag nrho cov tshuaj txhuam hniav tag nrho, yog li qhov cuam tshuam rau kev noj qab haus huv yog negligible.
5. Synergy nrog lwm cov khoom xyaw
Hauv cov tshuaj txhuam hniav ua tiav, CMC feem ntau ua haujlwm nyob rau hauv synergy nrog lwm cov khoom xyaw kom txhim kho nws txoj haujlwm. Piv txwv li, CMC tuaj yeem siv nrog cov chaw ntub dej (xws li glycerin lossis propylene glycol) kom tiv thaiv cov tshuaj txhuam hniav los ntawm cov tshuaj txhuam thiab tawg ntawm cov tshuaj txhuam hniav ntawm cov tshuaj txhuam hniav. Ib qho ntxiv, CMC tseem tuaj yeem ua haujlwm synergistically nrog seeb cov tshuaj txhuam hniav (xws li Sodacyl Sulfas) los pab ua kom hniav zoo dua kom npog cov hniav thaum txhuam hniav thaum ua kom huv.
6. Hloov chaw thiab kev tiv thaiv ib puag ncig
Txawm hais tias CMC yog siv cov tuab tuab thiab muaj kev cuam tshuam nrog cov tshuaj txhuam hniav hauv ib puag ncig, nrog kev txhim kho ntawm cov khoom siv ib puag ncig, nrog kev siv cov khoom siv tsis ntev los no los hloov cov ntaub ntawv CMC. Piv txwv li, qee cov pos hniav (xws li cov pos hniav guar) kuj muaj cov txiaj ntsig zoo sib xws thiab ruaj khov, thiab cov khoom siv ntau dua. Txawm li cas los xij, CMC tseem txuas ntxiv mus rau txoj haujlwm tseem ceeb hauv cov tshuaj txhuam hniav vim nws cov kev ua tau ruaj khov, tus nqi qis thiab tus nqi qis thiab kev siv tau.
Daim ntawv thov CMC hauv cov tshuaj txhuam hniav yog multifaceted. Nws tsis tuaj yeem hloov kho cov tshuaj txhuam hniav thiab muaj peev xwm los ntawm cov tshuaj txhuam hniav thiab siv cov tshuaj txhuam hniav. Txawm hais tias lwm cov ntaub ntawv xaiv tau tshwm sim, CMC tseem ua si lub luag haujlwm tsis tseem ceeb hauv cov tshuaj txhuam hniav nrog nws cov khoom muaj txiaj ntsig thiab cov txiaj ntsig zoo. Txawm hais tias nyob rau hauv cov qauv ib txwm muaj lossis hauv kev tshawb fawb thiab kev txhim kho ntawm cov tshuaj txhuam hniav niaj hnub no rau cov tshuaj txhuam hniav zoo thiab cov neeg siv khoom.
Lub sij hawm Post: Lub Yim-13-2024