Kodi kusiyana kwa HPMC ndi kapena popanda S ndi kotani?

1. HPMC lagawidwa mu mtundu nthawi yomweyo ndi kudya kubalalitsidwa mtundu

Mtundu wobalalika wa HPMC umayikidwa ndi chilembo S, ndipo glyoxal iyenera kuwonjezeredwa panthawi yopanga.

Mtundu waposachedwa wa HPMC suwonjezera zilembo, monga "100000" amatanthauza "100000 viscosity fast kubalalikana mtundu HPMC".

2. Ndi kapena popanda S, makhalidwe ndi osiyana

HPMC yomwazika mwachangu imabalalika mwachangu ikakumana ndi madzi ozizira ndikuzimiririka m'madzi. Panthawi imeneyi, madzi alibe mamasukidwe akayendedwe, chifukwa HPMC kokha omwazika m'madzi popanda kuvunda kwenikweni. Patapita mphindi ziwiri, mamasukidwe akayendedwe a madzi pang`onopang`ono ukuwonjezeka, kupanga mandala viscous Thick colloid.

Instant HPMC imatha kumwazikana mwachangu m'madzi otentha pafupifupi 70°C. Kutentha kumatsika mpaka kutentha kwina, kukhuthala kumawonekera pang'onopang'ono mpaka mawonekedwe a viscous colloid atapangidwa.

3. Ndi kapena popanda S, cholinga ndi chosiyana

Instant HPMC ikhoza kugwiritsidwa ntchito mu putty powder ndi matope. Mu guluu wamadzimadzi, utoto ndi zinthu zotsuka, padzakhala zochitika zamagulu ndipo sizingagwiritsidwe ntchito.

Mwamsanga omwazika HPMC ali osiyanasiyana ntchito ndipo angagwiritsidwe ntchito putty ufa, matope, madzi guluu, utoto, ndi kutsuka mankhwala popanda contraindications.

Njira yothetsera

1. Tengani madzi otentha ofunikira, muyike mu chidebe ndikuwotchera pamwamba pa 80 ° C, ndipo pang'onopang'ono yonjezerani mankhwalawa pansi pa kuyambitsa pang'onopang'ono. Ma cellulose amayandama pamadzi poyamba, koma amamwazikana pang'onopang'ono kuti apange matope ofanana. The yankho utakhazikika pamene akuyambitsa.

2. Kapenanso, tenthetsani 1/3 kapena 2/3 ya madzi otentha pamwamba pa 85 ° C, onjezani mapadi kuti mupeze slurry yamadzi otentha, kenaka yikani madzi otsala a madzi ozizira, pitirizani kuyambitsa, ndi kuziziritsa kusakaniza kotsatira.

3. Ma mesh a cellulose ndi abwino, ndipo amakhala ngati tinthu tating'onoting'ono tating'ono tating'ono ta ufa wosakanikirana, ndipo amasungunuka mwachangu akakumana ndi madzi kuti apange mamasukidwe ofunikira.

4. Pang'onopang'ono ndi mofanana yonjezerani cellulose kutentha kwa firiji, kuyambitsa mosalekeza mpaka njira yowonekera ipangidwe.

Kodi ndi zinthu ziti zomwe zimakhudza kusungidwa kwa madzi kwa hydroxypropyl methylcellulose?

Kusungidwa kwa madzi kwa mankhwala a hydroxypropyl methylcellulose HPMC pawokha kumakhudzidwa ndi izi:

1. Kufanana kwa cellulose ether HPMC

HPMC, methoxyl ndi hydroxypropoxyl zimagawidwa mofanana, ndipo chiwerengero chosungira madzi ndichokwera kwambiri.

2. Kutentha kwa kutentha kwa kutentha kwa cellulose ether HPMC

Kutentha kwa gel osakaniza kumapangitsa kuti madzi asapitirire; apo ayi, kutsika kwa madzi osungira madzi.

3. Ma cellulose ether HPMC mamasukidwe akayendedwe

Pamene mamasukidwe akayendedwe a HPMC akuwonjezeka, kuchuluka kwa madzi osungirako kumawonjezekanso; pamene mamasukidwe akayendedwe akufika pamlingo wina, kuwonjezeka kwa madzi osungira madzi kumakhala kosalala.

Kuwonjezera kuchuluka kwa cellulose ether HPMC

Kuchulukitsitsa kwa cellulose ether HPMC kuwonjezeredwa, kukwezera kuchuluka kwa madzi osungira komanso kumapangitsa kuti madzi asungidwe bwino.

Pakati pa 0.25-0.6% yowonjezera, kuchuluka kwa madzi osungira madzi kumawonjezeka mofulumira ndi kuwonjezeka kwa ndalama zowonjezera; pamene kuchuluka kwa madzi kumawonjezeka, kuchuluka kwa madzi kumachepetsedwa.