HPMC (Hydroxypropyl Methyl Cellulose)uyeHPC (Hydroxypropyl Cellulose)ese ari maviri anobva ku cellulose, anoshandiswa zvakanyanya mumishonga, chikafu, kuvaka uye cosmetic maindasitiri. Kunyangwe izvo zviviri zvakafanana mune zvimwe zvinhu, zviri pachena zvakasiyana muchimiro chemakemikari, zvemuviri uye makemikari zvimiro, solubility uye nzvimbo dzekushandisa.
1. Chimiro chemakemikari uye zvinhu
HPMC inogadzirwa nemethylation uye hydroxypropylation yemasikirwo cellulose, uye ine methoxy (-OCH₃) uye hydroxypropoxy (-OCH₂CHOHCH₃) mapoka mumorekuru.
HPC inowanikwa ne hydroxypropylation ye cellulose, uye boka rayo guru rinoshanda ndiro hydroxypropoxy (-OCH₂CHOHCH₃), pasina methoxy.
Nekuti HPMC ine yekuwedzera methoxy boka pane HPC, HPMC ine zvishoma hydrophobic, nepo HPC yakanyanya hydrophilic. Pamusoro pezvo, huremu hwemamorekuru hweHPMC hunowanzo kukwirira, nepo huremu hweHPC hunogona kudzorwa zvakanyanya, izvo zvinokanganisa kunyungudika uye viscosity maitiro ezviviri.
2. Kunyungudika kwemvura uye kunyungudika maitiro
HPMC inonyungudika mumvura inotonhora kuita inoonekera kana translucent colloidal mhinduro, asi isinganyungudika mumvura inopisa. Naizvozvo, HPMC inoda kufanonyungudutswa kana kuparadzirwa uchishandisa nzira dzakakosha mune mamwe maapplication.
HPC ine mvura yakanaka yekunyungudika uye inogona kunyungudika mumvura inotonhora uye zvimwe organic solvents, senge ethanol, methanol, nezvimwewo, uye ine yakanaka gobvu uye firimu-kugadzira zvinhu.
HPMC ine thermogel pfuma. Kana tembiricha yakwira, mhinduro inogona kupatsanurwa, nepo HPC kazhinji isingaite thermogel, saka HPC ine kugadzikana kuri nani munzvimbo dzekushisa.
3. Viscosity uye rheological properties
HPMC ine yakakwira viscosity uye inowanzo shandiswa seyakakora, stabilizer uye firimu-forming agent. Yayo rheological properties mune aqueous solution iri pedyo nepseudoplastic fluids.
HPC ine yakaderera viscosity uye inonyanya kukodzera kune maumbirwo anoda zviri nani fluidity, senge zvinodhaka zvemuromo uye zvekupfeka zvinhu.
4. Minda yekushandisa
Nekuda kwekusiyana kwemuviri nemakemikari zvivakwa pakati peHPMC neHPC, vanoita mabasa akasiyana mumaindasitiri akasiyana uye zvigadzirwa:
Pharmaceutical industry
HPMC inonyanya kushandiswa sebhainda, inosimudzira-kuburitsa zvinhu, firimu rekuputira zvinhu zvemapiritsi emishonga, uye sechikamu chegoko remagororo capsules. Yayo yakanaka yekugadzira firimu pfuma uye kunyungudika kwemvura kunoita kuti ive chinhu chinodiwa chekugadzirira-kuburitswa kwegadziriro.
HPC inonyanya kushandiswa se disintegrant, binder, solubilizer, uye bioadhesive zvinhu zvemapiritsi, uye yakakodzera kuvandudza kunyungudika uye bioavailability yemishonga. Mukuwedzera, HPC inonyanya kushandiswa mukupisa kunyunguduka extrusion tekinoroji kupfuura HPMC.
Indasitiri yezvokudya
HPMC inogona kushandiswa sechikafu thickener, emulsifier, stabilizer, uye emulsifier stabilizer kune isiri-mukaka cream.
HPC inonyanya kushandiswa sechikafu chakakora, emulsifier, uye inovandudza, uye yakakodzera kune shuga-isina uye yakaderera-calorie chikafu.
Cosmetics uye kutarisira wega
HPMC inogona kushandiswa muzvigadzirwa zvekuchengetedza ganda uye detergents se emulsifier stabilizer.
HPC inonyanya kukodzera kune zvigadzirwa zvekuchengetedza bvudzi, zvinyoro uye zvigadzirwa zvekuchengeta maziso nekuda kwekunaka kwayo kunyungudika kwemvura uye lubricity.
Zvishandiso zvekuvaka
HPMC chikamu chakakosha chezvivakwa zvekuvaka, dhaka, uye putty poda, iyo inoita basa mukukora, kuchengetedza mvura uye kuwedzera kunama.
HPC haishandiswe zvishoma muindasitiri yekuvaka, asi inogona kushandiswa mune chaiyo-inonyungudika machira uye zvinonamira.
5. Kuchengetedzwa kwezvakatipoteredza uye kuchengeteka
Ose ari maviri HPMC neHPC anotorwa kubva kune yakasikwa cellulose uye ane yakanaka biodegradability uye kuchengetedzeka. HPMC inowanzoonekwa seisina chepfu uye isingatsamwire, nepo HPC ichishandiswawo zvakanyanya muchikafu nemushonga, ichisangana nezvinodiwa zvekuchengetedza zveFDA (US Chikafu neDrug Administration) nezvimwe zviyero zvepasi rose.
6. Mazano ekusarudza
Kana yakakwira viscosity uye firimu-inogadzira zvivakwa zvichidikanwa, HPMC yakakodzera, senge piritsi yekuputira, yekuvaka machira uye mamwe maapplication.
Kana zvirinani solubility uye biocompatibility zvichidikanwa, HPC yakakodzera, senge mishonga yemuromo, inopisa melt extrusion components, nezvimwe.
HPMCuyeHPCese ari maviri akakosha ma cellulose derivatives, ayo akasiyana muchimiro chemakemikari, solubility, uye nzvimbo dzekushandisa. HPMC inonyanya kukodzera kune yakakwira viscosity, inopisa gel-inogadzira zvikumbiro senge piritsi yekuputira uye zvekuvakisa, nepo HPC inonyanya kufanirwa nemuromo kugadzirira, zvizorwa uye kugadzirisa kwekudya nekuda kwekunyungudika kwayo kwemvura uye kuderera kwe viscosity. Maererano nezvinodiwa zvakananga, kusarudza zvinhu zvakakodzera zvinogona kuvandudza kushanda uye kugadzikana kwechigadzirwa.
Nguva yekutumira: Mar-28-2025