Kodi HPC ndi HPMC ndizofanana?

HPC (Hydroxypropyl Cellulose) ndi HPMC (Hydroxypropyl Methylcellulose) ndi mitundu iwiri ya cellulose yosungunuka m'madzi yomwe imagwiritsidwa ntchito kwambiri m'makampani opanga mankhwala, chakudya ndi mankhwala. Ngakhale ndizofanana m'mbali zina, kapangidwe kake ka mankhwala, katundu ndi zochitika zomwe zimagwiritsidwa ntchito ndizosiyana kwambiri.

1. Kapangidwe ka mankhwala
HPC: HPC ndi yochokera pang'ono ya hydroxypropylated ya cellulose. Amapangidwa pochita ma cellulose ndi propylene oxide ndikuyambitsa magulu a hydroxypropyl (-CH2CHOHCH3). Mu kapangidwe ka HPC, gawo la magulu a hydroxyl a cellulose backbone amasinthidwa ndi magulu a hydroxypropyl, ndikupangitsa kuti sungunuka m'madzi ndi thermoplastic.
HPMC: HPMC ndi yochokera pang'ono ya hydroxypropylated ndi methylated ya cellulose. Amakonzedwa poyambitsa magulu a hydroxypropyl ndi magulu a methoxy (-OCH3) mu cellulose. Mapangidwe a maselo a HPMC ndi ovuta kwambiri, ndikuyambitsa magulu a hydroxypropyl ndi ma methyl substitutes.

2. Thupi ndi mankhwala katundu
Kusungunuka: Onsewa ndi ma polima osungunuka m'madzi, koma machitidwe awo osungunuka ndi osiyana. HPC imakhala ndi kusungunuka kwabwino m'madzi ozizira ndi zosungunulira za organic (monga ethanol, propanol, etc.), koma kusungunuka kwake kungachepetse kutentha (pafupifupi 45 ° C kapena pamwamba). HPMC ili ndi kusungunuka kwabwino kwambiri m'madzi ozizira, koma imakhala ndi gelling m'madzi otentha kwambiri, ndiko kuti, kutentha kwambiri, HPMC yosungunuka m'madzi idzapanga gel osakaniza ndipo sichidzasungunukanso.
Kukhazikika kwamafuta: HPC ili ndi thermoplasticity yabwino, zomwe zikutanthauza kuti imatha kufewetsa kapena kusungunuka pamatenthedwe apamwamba, motero imagwiritsidwa ntchito nthawi zambiri muzinthu zopangira thermoplastic. HPMC ili ndi kukana kutentha kwakukulu, sikophweka kusungunuka kapena kufewetsa, ndipo ndi yoyenera kugwiritsidwa ntchito pansi pa kutentha kwakukulu.
Viscosity: HPMC nthawi zambiri imakhala ndi mamasukidwe apamwamba kuposa HPC, makamaka m'makampani opanga mankhwala, HPMC imagwiritsidwa ntchito nthawi zambiri pamapangidwe omwe amafunikira kulumikizana mwamphamvu kapena zokutira, pomwe HPC imagwiritsidwa ntchito munthawi yomwe kukhuthala kwapakati kapena kutsika kumafunikira.

3. Minda yofunsira
Malo azamankhwala:
HPC: HPC ndi wothandizira mankhwala, makamaka ntchito ngati zomatira piritsi, kapisozi chipolopolo filimu kupanga wothandizila, ndi matrix chuma kulamulira kumasulidwa kwa mankhwala. Chifukwa cha thermoplasticity yake, ndizoyeneranso kukonzekera zina zotentha zosungunuka. HPC ilinso ndi biocompatibility yabwino komanso kuwonongeka, ndipo ndiyoyenera kugwiritsidwa ntchito ngati njira yoperekera mankhwala am'kamwa.
HPMC: HPMC imagwiritsidwa ntchito kwambiri m'makampani opanga mankhwala, ndipo imagwiritsidwa ntchito ngati matrix, zinthu zokutira, thickener ndi stabilizer pamapiritsi omasulidwa mosalekeza. The gelling katundu wa HPMC kupanga kukhala yabwino mankhwala kumasulidwa kulamulira zakuthupi, makamaka m`mimba thirakiti, kumene angathe kulamulira mlingo wa kumasulidwa mankhwala. Kapangidwe kake kabwino ka filimu kamapangitsanso kuti ikhale chisankho chachikulu pakupaka piritsi ndi tinthu tating'onoting'ono.

Malo azakudya:
HPC: M'makampani azakudya, HPC itha kugwiritsidwa ntchito ngati thickener, stabilizer ndi emulsifier kukonza mawonekedwe ndi mawonekedwe a chakudya. Nthawi zina, itha kugwiritsidwanso ntchito ngati filimu yodyera pazakudya zina zomwe ziyenera kukhala zonyowa kapena kuzipatula.
HPMC: HPMC imagwiritsidwanso ntchito ngati thickener, emulsifier ndi stabilizer m'makampani azakudya, makamaka muzophika monga mkate ndi makeke. HPMC imathandizira kukonza kapangidwe ndi kapangidwe ka mtanda ndikukulitsa moyo wa alumali wa chakudya. Kuphatikiza apo, HPMC imagwiritsidwanso ntchito kwambiri muzakudya zamasamba ngati choloweza m'malo mwazomera m'malo mwa collagen ya nyama.
Zodzoladzola ndi zinthu zosamalira munthu:

Onse HPC ndi HPMC angagwiritsidwe ntchito zodzoladzola monga thickeners, stabilizers ndi akale mafilimu. Mwachitsanzo, amatha kugwiritsidwa ntchito posamalira khungu ndi tsitsi kuti azitha kukhudza komanso kukhazikika kwa mankhwalawa. HPMC nthawi zambiri imakhala yoyenera ngati cholumikizira chowonekera, monga chowonjezera m'maso, pomwe HPC imagwiritsidwa ntchito nthawi zambiri pomwe zokutira zosinthika zimafunikira kupangidwa.
Zomangira ndi zokutira:

HPMC: Chifukwa chomamatira bwino komanso kusunga madzi, HPMC imagwiritsidwa ntchito kwambiri pomanga zinthu monga simenti, matope, putty ndi gypsum kuti apititse patsogolo kumamatira ndikuwongolera ntchito yomanga.
HPC: Mosiyana ndi izi, HPC siigwiritsidwa ntchito kwambiri m'makampani omanga ndipo imagwiritsidwa ntchito ngati chowonjezera kapena zomatira zomatira.

4. Chitetezo ndi kuteteza chilengedwe
Onse a HPC ndi HPMC amawonedwa ngati zida zotetezeka ndipo amagwiritsidwa ntchito kwambiri muzakudya, zamankhwala komanso zinthu zosamalira anthu. Onsewa ali ndi biocompatibility yabwino komanso kuwonongeka, ndipo sizingayambitse zotsatira zoyipa mthupi la munthu. Komabe, popeza samatengeka m'thupi la munthu ndipo amangogwiritsidwa ntchito ngati zida zothandizira, nthawi zambiri alibe zotsatira zadongosolo mthupi la munthu. Kuonjezera apo, kupanga kwa HPC ndi HPMC ndizogwirizana ndi chilengedwe, ndipo mankhwala ndi zosungunulira zomwe zimagwiritsidwa ntchito popanga zimatha kubwezeretsedwanso bwino ndikugwiritsidwanso ntchito.

Ngakhale HPC ndi HPMC zonse ndizochokera ku cellulose ndipo zimakhala ndi ntchito zingapo pazogwiritsa ntchito zina, zimakhala ndi kusiyana kwakukulu pamapangidwe amankhwala, mawonekedwe akuthupi ndi malo ogwiritsira ntchito. HPC ndiyoyeneranso kugwiritsa ntchito zomwe zimafunikira zida za thermoplastic, monga kutulutsidwa kwamankhwala owongolera ndi njira zowotchera zotentha, pomwe HPMC imagwiritsidwa ntchito kwambiri muzamankhwala, chakudya, zomangamanga ndi magawo ena chifukwa chomatira bwino, kupanga mafilimu komanso kusunga madzi. . Chifukwa chake, ndi zinthu ziti zomwe mungasankhe zimadalira zomwe mukufuna kugwiritsa ntchito.