Kodi pali kusiyana kotani pakati pa hydroxypropyl methy cellose ndi methyl cellulose?

1.(Hpmc) mwakuthupi ndi mankhwala:

1. Maonekedwe: Mc ndi yoyera kapena yoyera-yoyera kapena granlar ufa, wopanda fungo.

2. Katundu: MC ili pafupifupi insuluble mu mtheradi, ether ndi acetone. Kubalika mwachangu ndikutupa m'madzi otentha nthawi 80 ~ 90 ° C, ndikusungunuka msanga mutatha kuziziritsa. Njira yothetsera matendawa imakhala yokhazikika mu kutentha kwa firiji, ndipo imatha kuthina kutentha kwambiri, ndipo gel imasintha ndi yankho ndi kutentha. Ili ndi utoto wabwino kwambiri, kubalalitsa, zomatira, zimakula, emulsization, kusungidwa kwamadzi ndikupanga mafilimu, komanso kufooka kwa mafuta. Kanema wopangidwayo ali ndi kulimba kwambiri, kusinthasintha komanso kuwonekera. Chifukwa siyopanda ionic, imagwirizana ndi ma emulsifiers ena, koma ndizosavuta kuti mcherewu utuluke, ndipo yankho lake likhala lokhazikika mkati mwa hu2-12.

3.

2. Njira yosungunuka:

Zinthu za MC zikawonjezedwa mwachindunji madzi, amalumikizana kenako amasungunuka, koma chisinthiko ndichosachedwa komanso chovuta. Pali njira zitatu zosungunulira pansipa, ndipo ogwiritsa ntchito amatha kusankha njira yabwino kwambiri malinga ndi zomwe amachita:

1. Njira yamadzi yotentha: Popeza mc sasungunuka m'madzi otentha, MC ikhoza kubadwa m'madzi otentha koyamba, kenako ikakhazikika, njira ziwiri zomwe zafotokozedwa motere:

1). Ikani madzi otentha mu chidebecho ndikutenthetsa pafupifupi 70 ° C. Pang'onopang'ono mc adawonjezeredwa pang'onopang'ono kusuntha pang'onopang'ono, poyamba Mc adayandama pamtunda wamadzi, kenako pang'onopang'ono adapanga malo ocheperako, omwe adakhazikika pansi pa kusungunuka.

2). Onjezani 1/3 kapena 2/3 mwa madzi ofunikira mu chidebe, ndikutenthetsa 70 ° C. Malinga ndi njira ya 1), imabalalitsa mc kuphika madzi otentha; Kenako onjezani kuchuluka kwa madzi ozizira kapena madzi oundana ku starry yamadzi otentha, osakaniza adazimitsidwa pambuyo poyambitsa.

2. Njira yosakanikirana ya Mc

3. Njira yosungunuka yonyowa: In-Stolager Stophen kapena Wonyowa Mc Onls, monga ethanol, ethylee glycol kapena mafuta, kenako ndikuwonjezera madzi osalala panthawiyi.

3. Gwiritsani ntchito:

Izi zimagwiritsidwa ntchito kwambiri pomanga, zopangira, zozizitsidwa, zothandizira, zopindika, zomata, zopindika, zokhala ndi mafilimu Ndipo thikhiner popanga mafakitale, ndipo imagwiritsidwanso ntchito kwambiri ku matope obowola ndi mafakitale a tsiku ndi tsiku.

Methylcellulose (MC) mwakuthupi ndi mankhwala:

1. Maonekedwe: Mc ndi yoyera kapena yoyera-yoyera kapena granlar ufa, wopanda fungo.

2. Katundu: MC ili pafupifupi insuluble mu mtheradi, ether ndi acetone. Amabalalitsa mwachangu ndi kutumphuka m'madzi otentha pa 80 ~ 90> ℃, ndikusungunula mwachangu pambuyo pozizira. Njira yothetsera matendawa imakhala yokhazikika mu kutentha kwa firiji, ndipo imatha kuthina kutentha kwambiri, ndipo gel imasintha ndi yankho ndi kutentha. Ili ndi utoto wabwino kwambiri, kubalalitsa, zomatira, zimakula, emulsization, kusungidwa kwamadzi ndikupanga mafilimu, komanso kufooka kwa mafuta. Kanema wopangidwayo ali ndi kulimba kwambiri, kusinthasintha komanso kuwonekera. Chifukwa siyopanda ionic, imagwirizana ndi ma emulsifiers ena, koma ndizosavuta kuti mcherewu utuluke, ndipo yankho lake likhala lokhazikika mkati mwa hu2-12.

3.

4. Njira Yosungunuka:

MC> pomwe mankhwalawo amawonjezedwa mwachindunji madzi, iyo imagwirizana kenako ndikusungunuka, koma chisinthiko ndichosachedwa komanso chovuta. Pali njira zitatu zosungunulira pansipa, ndipo ogwiritsa ntchito amatha kusankha njira yabwino kwambiri malinga ndi zomwe amachita:

1. Njira yamadzi yotentha: Popeza mc sasungunuka m'madzi otentha, MC ikhoza kubadwa m'madzi otentha koyamba, kenako ikakhazikika, njira ziwiri zomwe zafotokozedwa motere:

1). Ikani madzi otentha mu chidebecho ndikutenthetsa pafupifupi 70 ° C. Pang'onopang'ono mc adawonjezeredwa pang'onopang'ono kusuntha pang'onopang'ono, poyamba Mc adayandama pamtunda wamadzi, kenako pang'onopang'ono adapanga malo ocheperako, omwe adakhazikika pansi pa kusungunuka.

2). Onjezani 1/3 kapena 2/3 mwa madzi ofunikira mu chidebe, ndikutenthetsa 70 ° C. Malinga ndi njira ya 1), imabalalitsa mc kuphika madzi otentha; Kenako onjezani kuchuluka kwa madzi ozizira kapena madzi oundana ku starry yamadzi otentha, osakaniza adazimitsidwa pambuyo poyambitsa.

2. Njira yosakanikirana ya Mc

3. Njira yosungunuka yonyowa: In-Stolager Stophen kapena Wonyowa Mc Onls, monga ethanol, ethylee glycol kapena mafuta, kenako ndikuwonjezera madzi osalala panthawiyi.

5. Gwiritsani:

Izi zimagwiritsidwa ntchito kwambiri pomanga, zopangira, zozizitsidwa, zothandizira, zopindika, zomata, zopindika, zokhala ndi mafilimu Ndipo thikhiner popanga mafakitale, ndipo imagwiritsidwanso ntchito kwambiri ku matope obowola ndi mafakitale a tsiku ndi tsiku.