Cov roj hmab Cellulose (MHEC)

Methyl Hydroxyethyl Cellulose(MHEC) yog ib hom cellulose ether uas siv dav hauv ntau yam lag luam vim nws cov yam ntxwv ntau yam. Nov yog kev piav qhia txog MHEC:

Qauv:

MHEC yog ib qho cellulose ether hloov kho uas tau los ntawm cellulose los ntawm ntau yam kev tshuaj lom neeg. Nws yog tus cwj pwm los ntawm qhov muaj ob qho tib si methyl thiab hydroxyethyl pawg ntawm cov cellulose backbone.

Cov Khoom:

1. Kev Yaj Hauv Dej: MHEC yaj tau hauv dej txias, ua rau cov kua ntshiab thiab nplaum.
2. Thickening: Nws ua kom pom cov khoom thickening zoo heev, ua rau nws muaj txiaj ntsig zoo li tus hloov pauv rheology hauv ntau cov qauv.
3. Kev Tsim Zaj Duab Xis: MHEC tuaj yeem tsim cov zaj duab xis uas yoog tau thiab sib koom ua ke, ua rau nws siv rau hauv cov txheej txheej thiab cov nplaum.
4. Kev Ruaj Ntseg: Nws muab kev ruaj ntseg rau cov emulsions thiab cov suspensions, txhim kho lub txee lub neej ntawm cov khoom tsim.
5. Kev nplaum: MHEC paub txog nws cov khoom nplaum, pab txhawb kev nplaum zoo dua hauv qee daim ntawv thov.

Cov ntawv thov:

1. Kev Lag Luam Tsim Kho:
   • Cov Nplaum Rau Pobzeb: MHEC siv rau hauv cov nplaum rau pobzeb kom txhim kho kev ua haujlwm tau zoo, kev khaws dej, thiab kev nplaum.
   • Cov Mortars thiab Renders: Nws yog siv rau hauv cov cement-based mortars thiab renders los txhim kho kev khaws dej thiab kev ua haujlwm tau zoo.
   • Cov Tshuaj Sib Xyaws Uas Ua Rau Nws Tus Kheej Sib Npaug: MHEC yog siv rau hauv cov tshuaj sib xyaw uas ua rau nws tus kheej sib npaug rau nws cov khoom ua kom tuab thiab ruaj khov.
2. Cov Txheej Txheem thiab Xim:
   • MHEC siv rau hauv cov xim pleev thiab cov txheej pleev uas muaj dej ua ib yam khoom ua kom tuab thiab ruaj khov. Nws pab txhim kho kev txhuam thiab kev ua haujlwm ntawm cov txheej pleev.
3. Cov nplaum:
   • MHEC siv rau hauv ntau yam nplaum kom txhim kho kev nplaum thiab txhim kho cov khoom rheological ntawm cov qauv nplaum.
4. Cov Tshuaj:
   • Hauv cov tshuaj, MHEC yog siv los ua tus binder, disintegrant, thiab tus neeg sawv cev ua zaj duab xis hauv cov tshuaj ntsiav.

Txheej Txheem Tsim Khoom:

Kev tsim cov MHEC suav nrog kev sib xyaw ua ke ntawm cellulose nrog kev sib xyaw ua ke ntawm methyl chloride thiab ethylene oxide. Cov xwm txheej tshwj xeeb thiab cov piv ntawm cov tshuaj reagent raug tswj kom ua tiav qib kev hloov pauv (DS) thiab los kho cov yam ntxwv ntawm cov khoom kawg.

Kev Tswj Xyuas Zoo:

Cov kev ntsuas tswj xyuas zoo, suav nrog cov txheej txheem tshuaj xyuas xws li nuclear magnetic resonance (NMR) spectroscopy, raug siv los xyuas kom meej tias qib ntawm kev hloov pauv yog nyob rau hauv qhov ntau thiab cov khoom ua tau raws li cov qauv xav tau.

Qhov MHEC siv tau ntau yam ua rau nws yog ib qho khoom xyaw muaj nqis hauv ntau hom tshuaj, pab txhawb kev ua tau zoo hauv cov ntaub ntawv siv hauv kev tsim kho, cov tshuaj pleev xim, cov nplaum, thiab cov tshuaj. Cov chaw tsim khoom muaj peev xwm muab ntau hom MHEC sib txawv kom tau raws li qhov xav tau ntawm ntau yam lag luam.