Dab tsi yog hemc?

Hydroxyethy cellulose (HEMC) yog lub cellulose derivative uas yog tsev neeg ntawm cov tsis-ionic dej-soluble polymers. Nws yog muab los ntawm cellulose, lub ntuj polymer pom nyob hauv cov phab ntsa ntawm tes ntawm cov nroj tsuag. HEMC yog synthesized los ntawm kev hloov cellulose nrog ob pawg medroxyethyl thiab methyl pawg, uas ua rau muaj cov khoom sib xyaw nrog cov khoom tshwj xeeb. Qhov kev hloov pauv no txhim kho nws cov dej solubility thiab ua rau nws muaj txiaj ntsig hauv ntau yam kev siv.

Nov yog qee tus yam ntxwv tseem ceeb thiab siv ntawm hydroxyethyl methyl cellulose (HEMC):

Cov yam ntxwv:

1. Dej solubility: HEMC yog soluble hauv dej, thiab nws solubility yog pawg xws li kub thiab siab.
2. Tus neeg saib xyuas tuab: xws li lwm yam kev ua haujlwm ntawm lub hlwb, HEMC feem ntau siv los ua cov tshuaj lom tuab hauv cov kev daws teeb meem aqueous nyob rau hauv aqueevous kev daws teeb meem. Nws nce viscosity ntawm cov dej, pab txhawb kom ruaj khov thiab kev ntxhib los mos.
3. Zaj duab xis-tsim cov khoom: Hemc tuaj yeem tsim cov yeeb yaj kiab thaum ua ntawv thov rau cov chaw. Cov cuab yeej no yog qhov tseem ceeb hauv kev thov xws li txheej ci, cov nplaum, thiab cov khoom saib xyuas tus kheej.
4. Txhim kho cov dej khaws cia: HEMC paub txog nws lub peev xwm los txhim kho cov dej khaws cia hauv ntau cov qauv. Qhov no muaj txiaj ntsig tshwj xeeb hauv cov ntaub ntawv tsim kho thiab lwm cov kev siv uas tswj kom ya raws yog qhov tseem ceeb.
5. Cov neeg sawv cev ruaj khov: HEMC feem ntau siv los ua kom ruaj khov thiab tshem tawm hauv cov qauv sib txawv, tiv thaiv theem sib cais.
6. Kev sib raug zoo: HEMC tau sib haum nrog ntau yam ntawm lwm cov khoom xyaw, tso cai rau nws siv hauv ntau hom qauv.

Siv:

1. Cov Khoom Siv Siv:
   • HEMC yog feem ntau siv nyob rau hauv kev tsim kho kev tsim kho nyob rau hauv cov khoom ntxiv hauv cov khoom noj khoom haus cov txiv ntoo xws li cov nplaum nplaum, cov neeg nplua nuj, thiab muab cov khoom noj. Nws txhim kho cov haujlwm ua haujlwm, tso dej ua kom rov qab, thiab cov nplaum.
2. Xim thiab pleev xim:
   • Nyob rau hauv cov xim thiab pleev xim kev lag luam, HEMC yog siv kom tuab thiab ua kom ruaj khov. Nws pab kom ua tiav qhov kev xav tau zoo ib yam thiab kev ntxhib los mos nyob rau hauv cov xim tha xim.
3. Cov nplaum:
   • HEMC yog ua haujlwm hauv cov nplaum nplaum kom txhim kho viscance viscosity thiab txhim kho cov khoom lag luam nplaum. Nws pab txhawb rau qhov kev ua tau zoo tag nrho ntawm cov nplaum.
4. Cov khoom lag luam ntawm tus kheej:
   • HEMC yog pom nyob rau hauv ntau yam khoom siv saib xyuas tus kheej, suav nrog zawv plaub hau, kho kom zoo, thiab muaj ntau yam. Nws muab cov viscosity thiab ua rau muaj peev xwm rau kev ntxhib los ntawm cov khoom no.
5. Kws Tshuaj:
   • Hauv cov tshuaj tsim nyog, hemc yuav raug siv ua cov binder, tuab dua, lossis stabilizer hauv cov tshuaj thiab ncauj lus.
6. Kev Lag Luam Khoom Noj:
   • Thaum tsis tshua muaj tshwm sim hauv kev lag luam khoom noj khoom haus piv rau lwm cov ntaub ntawv ntawm cellulose, hemc yuav siv tau rau qee cov ntawv thov uas nws cov peev txheej tau txais txiaj ntsig.

HEMC, zoo li lwm yam kev ua haujlwm ntawm tes los, muaj ntau txoj haujlwm ua haujlwm uas ua rau nws muaj txiaj ntsig hauv kev lag luam ntau yam. Cov cim tshwj xeeb thiab cov yam ntxwv ntawm HEMC tuaj yeem sib txawv, thiab cov tuam ntxhab muab cov ntaub ntawv cov ntaub ntawv los taw qhia nws cov ntawv sib txawv.