Hydroxypropyl methylcellulose (hpmc) ndiHydroxyethyl cellulose (hec) Onse otumphukira, amagwiritsidwa ntchito kwambiri pakompyuta, mankhwala, zodzoladzola ndi minda ina. Kusiyanitsa kwawo kwakukulu kumawonetsedwa mu kapangidwe kake, mikhalidwe yotetezedwa, magawo a ntchito ndi zina.
1. Kusankhidwa kwa molecular
Hydroxypropyl methylcellulose (hpmc)
HPMC ndi kudzipatula kwa madzi wokhazikitsidwa ndi kufalitsa methyl (-ch3) ndi hydroxypropyl (-ch2chohch3ppyl (-ch2chohch3) magulu mu cellulose molecular unyolo. Makamaka, kapangidwe ka HPMC kumakhala ndi ntchito ziwiri zogwirizira, methyl (-och3) ndi hydroxypropyl (-Och2ch (OCH2ch (O) Ch3). Nthawi zambiri, chiwerengero cha mawu a methyl ndi okwera, pomwe hydroxypyl amatha kusintha mosamala kusungunuka kwa cellulose.
Hydroxyethyl cellulose (hec)
Hec ndi wochokera ku ethyl (-ch2ch2oh magulu mu cellulose ma cen. Pazinthu za hydroxyethyl matrauluse, mtundu umodzi kapena zingapo hydroxyl (-Oh) wa cellulose amasinthidwa ndi magulu a ethyl hydroxyl (--ch2chnioh). Mosiyana ndi HPMC, kapangidwe ka helecular ya hec ili ndi hydroxethyl m'malo osagawika ndipo alibe magulu a methyl.
2. Madzi osungunuka
Chifukwa cha kusiyana kwakukulu, madzi osungunuka a HPMC ndi Hec ndi osiyana.
HPMC: HPMC ili ndi madzi abwino osungunuka madzi, makamaka osalowerera ndale kapena pang'ono alkalinel albine, kususuka kwake ndiyabwino kuposa hec. Kukhazikitsidwa kwa methyl ndi ma hydroxypyl magulu ake kumawonjezera kusungunuka kwake ndipo kungakulitsenso mafayilo pakugwirizana ndi mamolekyulu amadzi.
Hec: Nthawi zambiri hec nthawi zambiri amasungunuka m'madzi, koma kususuka kwake kumakhala osauka, makamaka m'madzi ozizira, ndipo nthawi zambiri amafunikira kusungunuka pansi mopanda tanthauzo. Kusungunuka kwake kumakhudzana ndi kusiyana komwe kumachitika kwa cellulose komanso hydrophilicity ya gulu la hydroxyethyl.
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HPMC: Chifukwa cha kukhalapo kwa magulu awiri a hydrophilic (methyl ndi hydroxypyl) m'mamolekyulu ake Kukhazikika kosiyanasiyana, hpmc kumatha kusinthidwa kuchokera ku mafayilo owoneka bwino kwambiri, ndipo mafayilo amakhudzidwa kwambiri ndi zosintha za pH.
Hec: Mawonekedwe a Hec amatha kusinthidwanso posintha ndendeyo, koma kusintha kwa ma Vietctions ndiocheperako kuposa ku HPMC. Hec imagwiritsidwa ntchito makamaka pamavuto komwe kumatsika kwa ma virussion kumafunikira, makamaka pomanga, zotchinga ndi zinthu zosamalira pandekha. Mitundu ya misuagical ya Hec ndi yokhazikika, makamaka m'malo a acidic kapena osalowerera, hec imatha kuyika mafayilo okhazikika.
4. Zolemba
Hydroxypropyl methylcellulose (hpmc)
Makampani omanga: HPMC imagwiritsidwa ntchito matope a simenti ndi zokutira m'makampani omanga kuti musinthe madzi, kubisala komanso kupewa ming'alu.
Makampani ogulitsa mankhwala: monga mankhwala osokoneza bongo ogwiritsa ntchito mankhwala, hpmc amagwiritsidwa ntchito kwambiri m'makampani opanga mankhwala. Sizingagwiritsidwe ntchito ngati othandizira mapiritsi ndi makapisozi, komanso monga zomatira kuthandiza mankhwala omasulidwa.
Makampani ogulitsa zakudya: hpmc nthawi zambiri amagwiritsidwa ntchito mu chakudya podyera ngati chitchinga, chitsitsi kapena emulsilifier kuti musinthe mawonekedwe ndi kukoma kwa chakudya.
Makampani opanga zodzikongoletsera: Monga thickic, hpmc amagwiritsidwa ntchito kwambiri muzogulitsa monga zowonera, shampoos, ndi zoyeserera kuti ziwonjezere mawonekedwe ndi kukhazikika kwa zinthuzo.
Hydroxyethyl cellulose (hec)
Makampani omanga: Hec nthawi zambiri amagwiritsidwa ntchito mu simenti, gypsum, ndi timsiketi omata zosintha madzi ndi nthawi yosunga ndalama.
Oyeretsa: Hec nthawi zambiri amagwiritsidwa ntchito mu malo oyeretsedwa panyumba, zotchinga zopachika ndi zinthu zina zowonjezera mafayilo azomwezo ndikusintha.
Makampani opanga zodzikongoletsera: Hec amagwiritsidwa ntchito kwambiri pazinthu zosamalira khungu, shampoos, shampoos, etc. Monga kuleka kwabwino kuti musinthe mawonekedwe ndi kukhazikika kwa malonda.
Kuchotsera mafuta: Hec itha kugwiritsidwanso ntchito polemba mafuta ngati kukula m'madzi okwera m'madzi kuti athandizire kukulira kwamadzimadzi ndikuwongolera zomwe zimayendetsa.
5. PH Kukhazikika
HPMC: HPMC ikuwoneka bwino kwambiri ndikusintha kwa pH. Pansi pa acidic mikhalidwe, kusungunuka kwa HPMC kumachepa, komwe kungakhudze momwe akugwirira ntchito. Chifukwa chake, nthawi zambiri imagwiritsidwa ntchito posalowerera ndale.
Hec: Hec imakhazikika mogwirizana ndi mawu osiyanasiyana. Ili ndi kusintha kwamphamvu kwa asidic ndi alkaline malo, kotero nthawi zambiri amagwiritsidwa ntchito ngati mapangidwe omwe amafunikira kukhazikika kwamphamvu.
HpmcndiHeczimasiyana mu kapangidwe kake, kusungunuka, kusintha kwa ma vinyyo, ndi madera ogwiritsira ntchito. HPMC ili ndi kusintha kwabwino kwamadzi ndi kusintha kwa ma viscrence magwiridwe antchito, ndipo ndizoyenera kugwiritsa ntchito zomwe zimafunikira mafayilo apamwamba kapena magwiridwe antchito; Pomwe Hec ali ndi ma pH yabwino pH ndi mapulogalamu osiyanasiyana, ndipo ndizoyenera nthawi zina zomwe zimafunikira mawonekedwe owoneka bwino komanso otsika zachilengedwe. Pamapulogalamu enieni, chisankho chomwe chikuyenera kuyesedwa molingana ndi zosowa zina.
Post Nthawi: Feb-24-2025