Ethyl cellulose microcapsule npaj txheej txheem

Ethyl cellulose microcapsules yog cov khoom siv me me los yog cov tshuaj ntsiav nrog cov qauv ntawm lub plhaub, qhov twg cov khoom xyaw ua haujlwm lossis cov nyiaj them poob haujlwm yog encapsulated hauv ethyl cellulose polymer plhaub. Cov microcapsules no yog siv nyob rau hauv ntau yam lag luam, xws li tshuaj, khoom noj khoom haus, tshuaj pleev ib ce, thiab kev ua liaj ua teb, rau kev tswj kev tso tawm los yog lub hom phiaj xa cov khoom encapsulated. Ntawm no yog cov lus qhia dav dav ntawm cov txheej txheem kev npaj rau ethyl cellulose microcapsules:

1. Kev xaiv cov khoom siv tseem ceeb:

• Cov khoom siv tseem ceeb, tseem hu ua cov khoom muaj txiaj ntsig lossis cov khoom thauj, raug xaiv raws li qhov xav tau ntawm daim ntawv thov thiab tso tawm cov yam ntxwv.
• Nws tuaj yeem yog cov khoom, kua, lossis roj, nyob ntawm qhov xav tau siv cov microcapsules.

2. Kev npaj cov khoom tseem ceeb:

• Yog tias cov khoom siv tseem ceeb yog cov khoom, nws yuav tsum tau ua hauv av los yog micronized kom ua tiav qhov xav tau particle loj faib.
• Yog hais tias cov khoom tseem ceeb yog cov kua, nws yuav tsum tau homogenized los yog dispersed nyob rau hauv ib tug haum hnyav los yog carrier tov.

3. Kev npaj cov tshuaj Ethyl Cellulose:

• Ethyl cellulose polymer yog yaj nyob rau hauv lub volatile organic solvent, xws li ethanol, ethyl acetate, los yog dichloromethane, los tsim ib qho kev daws teeb meem.
• Qhov concentration ntawm ethyl cellulose nyob rau hauv cov tshuaj yuav txawv nyob ntawm seb lub thickness ntawm lub polymer plhaub thiab cov yam ntxwv tso tawm ntawm lub microcapsules.

4. Cov txheej txheem emulsification:

• Cov khoom siv tseem ceeb yog ntxiv rau cov tshuaj ethyl cellulose, thiab qhov sib tov yog emulsified los tsim cov roj hauv dej (O / W) emulsion.
• Emulsification tuaj yeem ua tiav los ntawm kev siv tshuab agitation, ultrasonication, los yog homogenization, uas rhuav tshem cov khoom siv tseem ceeb rau hauv cov tee me me dispersed hauv cov tshuaj ethyl cellulose.

5. Polymerization lossis Solidification ntawm Ethyl Cellulose:

• Cov emulsified sib tov yog ces raug rau ib tug polymerization los yog solidification txheej txheem los tsim ethyl cellulose polymer plhaub nyob ib ncig ntawm cov tub ntxhais cov ntaub ntawv tee.
• Qhov no tuaj yeem ua tiav los ntawm cov kuab tshuaj evaporation, qhov twg cov kuab tshuaj organic tsis muaj zog raug tshem tawm los ntawm emulsion, tawm hauv qab cov microcapsules solidified.
• Xwb, cov neeg ua haujlwm sib txuas lossis cov txheej txheem coagulation tuaj yeem ua haujlwm los ua kom cov ethyl cellulose plhaub thiab ruaj khov ntawm microcapsules.

6. Ntxuav thiab ziab:

• Cov tsim microcapsules raug ntxuav nrog cov kuab tshuaj uas tsim nyog los yog dej kom tshem tawm cov khoom seem uas tsis huv lossis cov khoom tsis muaj tshuaj.
• Tom qab ntxuav, cov microcapsules tau qhuav kom tshem tawm cov dej noo thiab ua kom ruaj khov thaum khaws cia thiab tuav.

7. Yam ntxwv thiab Kev Tswj Xyuas Zoo:

• Cov ethyl cellulose microcapsules yog tus cwj pwm rau lawv qhov loj me me, morphology, encapsulation efficiency, tso tawm kinetics, thiab lwm yam khoom.
• Kev tswj xyuas kev ua tau zoo yog ua los xyuas kom meej tias cov microcapsules ua tau raws li qhov xav tau tshwj xeeb thiab cov qauv kev ua haujlwm rau daim ntawv thov.

Xaus:

Cov txheej txheem npaj rau ethyl cellulose microcapsules suav nrog emulsification ntawm cov khoom tseem ceeb hauv cov tshuaj ethyl cellulose, tom qab ntawd los ntawm polymerization los yog solidification ntawm lub plhaub polymer los encapsulate cov khoom tseem ceeb. Ua tib zoo xaiv cov ntaub ntawv, cov txheej txheem emulsification, thiab cov txheej txheem tsis yog qhov tseem ceeb kom ua tiav cov microcapsules zoo ib yam thiab ruaj khov nrog cov khoom xav tau rau ntau yam kev siv.

ons.