Kunzwisisa Hydroxypropyl Methyl Cellulose (HPMC)
Hydroxypropyl Methyl Cellulose (HPMC) i polymer inoshanda zvakasiyana-siyana inoshandiswa zvakanyanya mumaindasitiri akasiyana siyana, kusanganisira mishonga, chikafu, zvekuzora, uye kuvaka. Yayo yakasarudzika zvimiro, senge kunyungudika kwemvura, gelation pakudziya, uye kugona kugadzira firimu, inoita kuti ive chinhu chakakosha mukuumbwa kwakawanda. Chimwe chezvinhu zvakakosha zveHPMC ndeye viscosity yayo, iyo inonyanya kukanganisa kushanda kwayo uye kushandiswa.
Zvinhu Zvinokurudzira Viscosity yeHPMC
Zvinhu zvinoverengeka zvinokanganisa viscosity yeHPMC, kusanganisira:
Molecular Weight: Yepamusoro mamorekuru uremu HPMC mamakisi anowanzo kuratidza yakakwira viscosity.
Concentration: Iyo viscosity inowedzera pamwe nekusangana kweHPMC mune mhinduro.
Tembiricha: Viscosity inodzikira nekuwedzera tembiricha nekuda kweiyo polymer cheni inowedzera kufamba.
pH: HPMC yakagadzikana pahupamhi pH renji, asi yakanyanyisa pH mazinga anogona kukanganisa viscosity.
Degree of Substitution (DS) uye Molar Substitution (MS): dhigirii rekutsiva (nhamba yemapoka ehydroxyl anotsiviwa nemethoxy kana hydroxypropyl mapoka) uye molar substitution (nhamba yemapoka ehydroxypropyl paglucose unit) inokanganisa kunyungudika uye viscosity yeHPMC.
Yakakodzera Viscosity yeMashandisirwo Akasiyana
Iyo yakakodzera viscosity yeHPMC inotsamira pane chaiyo application. Heano kutarisisa kwakadzama kwekuti viscosity zvinodiwa zvinosiyana sei mumaindasitiri akasiyana:
1. Pharmaceuticals
Mumishonga yemishonga, HPMC inoshandiswa sebhainda, firimu-yekare, uye inodzorwa-inoburitsa mumiriri mumahwendefa nemakapisi.
Tablet Coating: Yakaderera kusvika pakati viscosity HPMC (3-5% mhinduro ine 50-100 cps) inokodzera kupfekedza firimu, inopa yakatsetseka, inodzivirira.
Kusunungurwa Kunodzorwa: High viscosity HPMC (1% mhinduro ine 1,500-100,000 cps) inoshandiswa mumapiritsi ematrix kudzora chiyero chekuburitsa chechinhu chinoshanda, kuve nechokwadi chekusunungurwa kwakasimba nekufamba kwenguva.
Binder muGranulation: Medium viscosity HPMC (2% mhinduro ine 400-4,000 cps) inofarirwa kune wet granulation maitiro kuti aumbe magranules ane yakanaka mechanical simba.
2. Indasitiri yezvokudya
Muindasitiri yechikafu, HPMC inoshandiswa seyakakora, stabilizer, uye emulsifier.
Thickening Agent: Yakaderera kusvika yepakati viscosity HPMC (1-2% mhinduro ine 50-4,000 cps) inoshandiswa kukora sosi, madhirezi, uye soups.
Emulsifier uye Stabilizer: Low viscosity HPMC (1% mhinduro ine 10-50 cps) inokodzera kudzikamisa emulsion uye furo, ichipa inodiwa manyorerwo muzvigadzirwa zvakaita seaizikirimu uye nekwambokodzwa nekwapuro.
3. Cosmetics uye Personal Care
HPMC inoshandiswa muzvizoro zvekukora, kugadzira firimu, uye kunyorovesa zvivakwa.
Lotions uye Creams: Yakaderera kusvika yepakati viscosity HPMC (1% mhinduro ine 50-4,000 cps) inopa inodiwa kuenderana uye kugadzikana.
Bvudzi Kuchengeta Zvigadzirwa: Medium viscosity HPMC (1% mhinduro ine 400-4,000 cps) inoshandiswa mumashampoos uye maconditioners kuvandudza magadzirirwo uye kuita.
4. Indasitiri yekuvaka
Mukuvaka, HPMC chinhu chakakosha mune zvigadzirwa senge mataira anonamira, plasters, uye simende-yakavakirwa zvinhu.
Tile Adhesives uye Grouts: Pakati kusvika kumusoro viscosity HPMC (2% mhinduro ine 4,000-20,000 cps) inovandudza kushanda, kuchengetedza mvura, uye adhesion properties.
Cement Plasters: Medium viscosity HPMC (1% mhinduro ine 400-4,000 cps) inowedzera kuchengetedza kwemvura uye kushanda, kudzivirira kutsemuka nekuvandudza kupera.
Viscosity Measurement uye Mazinga
Viscosity yeHPMC inowanzoyerwa uchishandisa viscometer, uye mibairo inotaridzwa mu centipoise (cps). Nzira dzakajairwa dzakadai seBrookfield viscometry kana capillary viscometry dzinoshandiswa zvichienderana nerudzi rwe viscosity. Kusarudzwa kwegiredhi rakakodzera reHPMC kunotungamirwa nezvakatsanangurwa zvinopihwa nevagadziri, izvo zvinosanganisira akadzama viscosity profiles.
Kufunga Kunoshanda
Paunenge uchisarudza HPMC kune chaiyo application, akati wandei maitiro anofanirwa kutariswa:
Kugadzirira Kugadzirisa: Yakakodzera hydration uye kunyungudika kwakakosha pakuwana iyo inodiwa viscosity. Kuwedzera zvishoma nezvishoma kumvura nekugara uchibvongodza kunobatsira kudzivirira kuumbwa kwebundu.
Kugarisana: Kuenderana kweHPMC nemamwe magadzirirwo ekugadzira kunofanirwa kuongororwa kuti ive nechokwadi chekugadzikana uye kushanda.
Mamiriro Ekuchengetedza: Viscosity inogona kukanganiswa nemamiriro ekuchengetedza akadai sekushisa uye humidity. Kuchengetedza kwakaringana munzvimbo inotonhorera, yakaoma kwakakosha kuchengetedza mhando yeHPMC.
Iko kwakakodzera viscosity yeHydroxypropyl Methyl Cellulose (HPMC) inosiyana zvakanyanya zvichienderana nekushandiswa, kubva pakudzika viscosity ye emulsification uye kudzikamisa muzvigadzirwa zvekudya kusvika kune yakakwira viscosity yekudzora kuburitswa kwezvinodhaka mumishonga. Kunzwisisa zvinodikanwa zveindasitiri yega yega uye kushandisa kwakakosha pakusarudza iro giredhi reHPMC, kuve nechokwadi chekuita kwakakwana uye kushanda. Nekufunga zvinhu zvakaita sehuremu hwemamorekuru, kutarisisa, tembiricha, uye pH, vagadziri vanogona kugadzirisa HPMC mhinduro kuti isangane nemazvo ekugadzira zvinodiwa.
Nguva yekutumira: May-22-2024