Njira yosungunula ndi njira zodzitetezera za HPMC

Hydroxypropyl methylcellulose siisungunuka mu ethanol ndi acetone yeniyeni. Yankho lamadzi ndi lokhazikika kwambiri kutentha kwa chipinda ndipo limatha kusungunuka kutentha kwambiri. Ma hydroxypropyl methylcellulose ambiri omwe ali pamsika tsopano ndi a madzi ozizira (madzi otentha m'chipinda, madzi a pampopi) amtundu wa instant. HPMC yamadzi ozizira instant idzakhala yosavuta kugwiritsa ntchito komanso yotetezeka. HPMC iyenera kuwonjezeredwa mwachindunji ku yankho la madzi ozizira patatha mphindi khumi mpaka makumi asanu ndi anayi kuti ikule pang'onopang'ono. Ngati ndi chitsanzo chapadera, iyenera kusunthidwa ndi madzi otentha kuti imwazikane, kenako nkutsanulira m'madzi ozizira kuti isungunuke ikazizira.

Zinthu za HPMC zikawonjezedwa mwachindunji m'madzi, zimaundana kenako n’kusungunuka, koma kusungunuka kumeneku kumakhala kochedwa kwambiri komanso kovuta. Njira zitatu zotsatirazi zosungunula zikulimbikitsidwa, ndipo ogwiritsa ntchito amatha kusankha njira yabwino kwambiri malinga ndi momwe zinthu zilili (makamaka pa HPMC yamadzi ozizira nthawi yomweyo).

Njira yosungunula ndi njira zodzitetezera za HPMC

1. Njira ya madzi ozizira: Ngati ikufunika kuwonjezeredwa mwachindunji ku madzi otentha bwino, ndi bwino kugwiritsa ntchito mtundu wa kufalikira kwa madzi ozizira. Mukawonjezera kukhuthala, kusinthasintha kudzawonjezeka pang'onopang'ono kufika pakufunika kwa index.

2. Njira yosakanizira ufa: Ufa wa HPMC ndi ufa wina wofanana kapena wochulukirapo umafalikira mokwanira posakaniza mouma, ndipo mukawonjezera madzi kuti asungunuke, HPMC ikhoza kusungunuka panthawiyi ndipo sidzaphatikizananso. Ndipotu, mosasamala kanthu za mtundu wa hydroxypropyl methylcellulose. Ikhoza kusakanikirana mouma mwachindunji ndi zinthu zina.

3. Njira yonyowetsera zinthu zosungunuka zachilengedwe: HPMC imamwazidwa kale kapena kunyowetsedwa ndi zinthu zosungunuka zachilengedwe, monga ethanol, ethylene glycol kapena mafuta, kenako n’kusungunuka m’madzi, ndipo HPMC imathanso kusungunuka bwino.

Pa nthawi yosungunuka, ngati pali kusonkhana, idzakulungidwa. Izi zimachitika chifukwa cha kusakaniza kosagwirizana, kotero ndikofunikira kufulumizitsa liwiro la kusakaniza. Ngati pali thovu mu kusungunuka, izi zimachitika chifukwa cha mpweya womwe umabwera chifukwa cha kusakaniza kosagwirizana, ndipo yankho limaloledwa kuyima kwa maola 2-12 (nthawi yeniyeni imadalira kukhazikika kwa yankho) kapena kutsuka vacuum, kupanikizika ndi njira zina zochotsera, kuwonjezera kuchuluka koyenera kwa defoamer kungathandizenso kuthetsa vutoli. Kuwonjezera kuchuluka koyenera kwa defoamer kungathandizenso kuthetsa vutoli.

Popeza hydroxypropyl methylcellulose imagwiritsidwa ntchito m'mafakitale osiyanasiyana, ndikofunikira kwambiri kudziwa njira yosungunula hydroxypropyl methylcellulose kuti igwiritsidwe ntchito moyenera. Kuphatikiza apo, ogwiritsa ntchito akukumbutsidwa kuti azisamala ndi kuteteza dzuwa, kuteteza mvula ndi chinyezi panthawi yogwiritsa ntchito, kupewa kuwala mwachindunji, ndikusunga pamalo otsekedwa komanso ouma. Pewani kukhudzana ndi magwero oyatsira moto ndikupewa kupanga fumbi lalikulu m'malo otsekedwa kuti mupewe ngozi zophulika.