Kodi ma hydroxypropyl a methylcellulose ndi chiyani?

Hydroxypylpyl (HPMC) ndi polymer yosungunuka yamadzi omwe amagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana komanso ogula, kuphatikiza zopaka. Ntchito zake zazikulu pakuchotsa zovala zimaphatikizapo kukula, kukhazikika, mapangidwe filimu, kuteteza nsalu ndi kukonza kapangidwe kake ndi kapangidwe kake.

1. Ntchito yolimbitsa thupi
HPMC ndi yothandiza kwambiri yomwe imasintha zinthu zakuthupi ndi kugwiritsidwa ntchito kwa zolerera zochapa pochulukitsa. Njira inayake ndi ma molekyulu ake a HPMC imapanga ma molekyulu a HPMC Kukula kumakhala ndi mapindu angapo:

Pewani Kukhazikika: Zosagwira ndi ma tinthu ochapira zovala zimakonda kukhazikitsa nthawi yosungirako komanso kugwiritsa ntchito, makamaka m'madzi amadzimadzi. HPMC imathandizira kuyimitsa zosakaniza izi powonjezera ufawo, kuonetsetsa kufalitsa zosakaniza.
Zosavuta kugwiritsa ntchito: Kusambitsa ufa wa Iscked kungakhale kopindulitsa bwino, pewani kutaya pakugwiritsa ntchito, ndikuwongolera kugwiritsa ntchito bwino ntchito.

2.
HPMC imagwira ngati chokhazikika poletsa zinthu zochapira zolekanitsa. Izi ndizofunikira kwambiri pakupanga magawo ambiri monga mafuta, zosakaniza zamadzi mumadzimadzi. HPMC imalepheretsa zigawo zolekanitsana ndi wina ndi mnzake powonjezera mamasukidwe a dongosolo ndikupanga mawonekedwe oteteza, potero kuti alule alumali wa chinthucho ndikuwongolera kukhazikika kwa malonda.

Emulsion kukhazikika: hpmc imatha kuthandiza kukhazikika kwa emulsifier yamadzi, kulola formula kuti ikhalebe yokhazikika kwa nthawi yayitali.
Pewani Stratization: Zimachepetsa kapena pewani kusinthanitsa kwa cholefutsira chochapira munthawi yosungirako ndikuwonetsetsa zosakaniza ndi zosakaniza.

3. Ntchito yopanga filimu
Pambuyo pa HPMC yasungunuka m'madzi, imatha kupanga filimu yowonekera komanso yosinthika. Katunduyu ukhoza kugwiritsidwa ntchito pochapa zovala ku:

Cholepheretsa chotchinga: Pakasamba, hpmc amatha kupanga filimu yopyapyala pamwamba pa ulusi wa nsalu kuti muchepetse kuwonekera kwa madontho pa nsalu, motero amalimbitsa mafuta.
Kupititsa patsogolo Chitetezo: Kanemayu amatha kupanga chotchinga chotchinga pa zovala ulusi kuti muchepetse kuvala mopitirira muyeso ndi kuthira nkhungu.

4. Chitetezo cha nsalu
Mwa kupanga filimu yoteteza, hpmc imatha kuteteza zovala ndi ulusi ndikuchepetsa magetsi ndi kuwonongeka kwa mankhwala komwe kumatha kuchitika pakutsuka. Makamaka:

Ma piritsi anti-piritsi: Zovala zopangidwa ndi HPMC imatha kuchepetsa kukangana kwa ulusi pakutsuka, potero kudya mapiritsi.
Zimalepheretsa: mwa kuwononga utoto ndi kutayika, hpmc kumathandizira kusunga zovala zamkati ndikuwoneka wokongola.

5. Sinthani mawonekedwe
HPMC imatha kukonzanso cholefuka chochapira, ndikupangitsa kuti ikhale yosavuta kugwiritsa ntchito ndi kutulutsa. Cellulose yochokera ku cellulose imathandiza kuti isinthane bwino za zotupa (monga madzi, kukula, etc.) ndikusintha zomwe wagwiritsa ntchito.

Kumva Chakumanja: Kuchapa ufa ufa wokhala ndi HPMC nthawi zambiri kumakhala ndi dzanja labwino mukamagwiritsa ntchito ndipo sikuti amawuma.
Kusintha kwabwino: HPMC imatha kusintha mawonekedwe osungunuka ochapira, kumapangitsa kuti zikhale zosavuta kusungunuka m'madzi ndikuchepetsa zotsalira.

6. Kugwirizana ndi Kuteteza Zachilengedwe
Mankhwala a HPMC amazindikira kugwirizana kwake komanso kutetezedwa chilengedwe. Zimagwirizana bwino ndi zosakaniza zowonongeka (monga zowonjezera, zowonjezera, ndi zina), ndipo ndi biodegragrad komanso ochezeka.

Kugwirizana kwa formula: hpmc ali ndi kufananako ndi zosakaniza zina zamankhwala ndipo sizingapangitse zovuta kapena kulephera.
Zowonongeka: Monga gawo limodzi lochokera ku cellulose yachilengedwe, hpmc imawonongeka mosavuta m'malo omwe ali mzere wobiriwira komanso zachilengedwe zachilengedwe zamakono.

Udindo wa HPMC pakuchotsa zovala kumawonekera makamaka mu kukula, kukhazikika, mapangidwe filimu, kuteteza nsalu ndi kukonza kapangidwe kake ndi kapangidwe kake. Mwa kusintha mawonekedwe a ufa ndi mankhwala ochapira, imalimbikitsa kusamba, imakulitsa zokumana nazo, ndikusintha chitetezo zachilengedwe. Chifukwa cha izi, HPMC yagwiritsidwa ntchito kwambiri pakuchotsa mafuta amakono ndipo yakhala imodzi mwazinthu zofunika kwambiri.