HydroxyPropyl methylcellose (HPMC) ndeyechisimba cheblymer zvinhu zvinowanzoshandiswa mukudya, mushonga, cosmetics nedzimwe minda. View's viscosity yakakosha chiratidzo chinokanganisa kuita kwayo, iyo inowanzoenderana nezvinhu zvakadai seyekuita smedilar uremu hweHPMC, mhinduro yekusimbisa, mhando yeiyo solvent uye tembiricha.
1. Molecular uremu
Uremu hwehurume hweHPMC ndechimwe chezvinhu zvakakomba zvinokanganisa zvavakaita. Kazhinji, iyo yakakura uremu, iyo yakareba iyo molecular cheni yeHPMC, yakaipisisa iyo fluidity, uye yakakwira viscosity. Izvi zvinodaro nekuti chimiro cheMacRomolecular Chain chinopa zvimwe zvekudyidzana zvekuita, zvichikonzera kurambidzwa kwakasimba pane iyo fluidity yemhinduro. Naizvozvo, pane imwecheteyo nzvimbo yekunyora, HPMC mhinduro zvine huremu hukuru hwemanyorerwo hunowanzo kuratidzira nzvimbo dzakakwirira.
Kuwedzera kwehuremu hwemanyorerwe zvakare kunokanganisa zvivakwa zveviscoelastic zvemhinduro. HPMC mhinduro neyekumusoro maElecular zviyero zvechiratidziro zvine simba Izvi zvinoita HPMC ine zvimwe zvakaomarara tsika tsika mune akasiyana mashandisirwo ekushandisa.
2. Kugadzirisa Solution
Iko kusvinuka kweiyo mhinduro ine kukosha kwakanyanya pane viscosity yeHPMC. Sezvo kusangana kweHPMC inowedzera, kudyidzana pakati pemamolekyu mumhinduro kunowedzera, zvichikonzera kuwedzera kuyerera kuramba uye nekuwedzera viscosity. Kazhinji, kuongorora kweHPMC kunoratidza kukura kwekusvika mukati meimwe huwandu, ndiko kuti, chiyero icho viscosity inowedzera neyekuwedzera zvishoma nezvishoma zvishoma nezvishoma.
Kunyanya mumhinduro dzakakwirira, kuwirirana pakati pemanyorerwo emanyorerwo kwakasimba, uye zvigadzirwa network kana glation zvinogona kuitika, izvo zvichawedzera kuwedzera zvisizvo mhinduro. Naizvozvo, mune maindasitiri ekushandisa, kuitira kuti uwane yakakodzera viscosity control, inowanzo kuve yakakosha kugadzirisa iyo HPMC yeHPMC.
3. Solvent mhando
Iyo solubility uye viscosity yeHPMC inoenderana zvakare nerudzi rweSolvent inoshandiswa. HPMC inowanzo shandisa mvura sechigadzika, asi pasi pemamwe mamiriro ezvinhu, mamwe manyorerwo akadai saThanol uye acetone inogona zvakare kushandiswa. Mvura, sepolar solvent, inogona kupindirana zvakanyanya neiyo hydroxyl uye methyl mapoka mune hpmc mamorekuru kusimudzira kupaza kwayo.
Iyo porlarity yeiyo solvent, tembiricha, uye yekudyidzana pakati peiyo solvent uye iyo HPMC mamorekuru inokanganisa iyo solubility ne viscosity yeHPMC. Semuenzaniso, kana yakaderera-polarity solvent inoshandiswa, iyo solubility yeHPMC inoderera, inokonzerwa neyakaderera viscosity yemhinduro.
4. Tembiricha
Mhedzisiro yekushisa pane viscosity yeHPMC yakakoshawo. Kazhinji, iyo viscosity yeHPMC mhinduro inoderera nekuwedzera tembiricha. Izvi zvinodaro nekuti kana tembiricha ichiwedzera, ma molecular anofamba-famba anowedzera, zvichikonzera kushaya simba kwekudyidzana kwemamorekuru, nekudaro achideredza viscosity.
Mune mamwe tembiricha yemitambo, iyo rheological yeHPMC Solution inoratidzira zvakanyanya isiri-Newtonian fluid maitiro, ndiko kuti, iyo visikoka haina kungokanganiswa nehasha, asi zvakare zvakakanganiswa nekuchinja kwekushisa. Naizvozvo, mune zvinoshanda zvinoshandiswa, kudzora tembiricha shanduko ndeimwe yenzira inoshanda yekugadzirisa zvevisa zveHPMC.
5. Shear Rate
Iyo viscosity yeHPMC Solution haina kungokanganiswa chete nezvinhu zviyero, asi zvakare nekureba. HPMC ndeye isiri-Newtonian fluid, uye yayo viscosity inoshanduka neshanduko yemhosva. Kazhinji, HPMC Solution inoratidza yakakwira viscosity pamatanho ekudzika, nepo viscosity inoderera zvakanyanya kune yakakwirira shear mitengo. Ichi chiitiko chinonzi shear kuonda.
Mhedzisiro yemugove weShear pane visikopa yeHPMC Solution inowanzoenderana nehunhu hwekuyerera hwemaketani emanyorerwo. Pakadzika masheya mareza, manyorerwo emanyorerwo anowanzopinda pamwe chete, zvichikonzera kusanzwisisika kwazvo; Kumusoro shear mitengo, kudyidzana pakati pemanyorerwe emamoriyamu aputswa uye visikoka zvakanyanya kuderera.
6. PH Kukosha
Iyo viscosity yeHPMC inoenderana zvakare nePP kukosha kwemhinduro. HPMC mamorekuru ine inogadziriswa hydroxypruppropyl uye methyl mapoka, uye iyo yekubhadhara mamiriro emapoka aya anokanganiswa naH. Mune mamwe PhH Mamota, HPMC mamorekuru inogona kufunga kana fomu jege, nekudaro ichichinja zvimbiso yemhinduro yemhinduro.
Kazhinji, mune acidic kana alkaline nharaunda, chimiro cheHPMC chinogona kuchinja, chinokanganisa kudyidzana kwaro nemamolekyudhi eSolvent uye, zvakare, inokanganisa viscosity. PAKATI PH ZVINOKOSHA, kugadzikana uye rheology yeHPMC mhinduro inogona zvakare kusiyana, saka kutarisirwa kwakakosha kunofanirwa kubhadharwa kuna Ph kutonga panguva yekushandisa.
7. Mhedzisiro yeAdffives
Pamusoro pezvikamu zviri pamusoro, zvimwe zvinowedzera zvakadai sekurasa pamwe nemusasa uye surfacts zvinogona zvakare kukanganisa iyo viscosity yeHPMC. Kuwedzerwa kwemaronda kunogona kazhinji kuchinja ionic simba reiyo mhinduro, nokudaro inokanganisa iyo solubility uye viscosity yeHPMC mamorekuru. Surfactants inogona kushandura iyo molecular chimiro cheHPMC nekushandura kudyidzana pakati pemamorekuru, nokudaro achinja viscosity yayo.
Iyo viscosity yeHPMC inokanganiswa nezvinhu zvakawanda, kusanganisira molecular uremu, mhinduro yekusimbisa, solvent mhando, tembiricha, Shear rate, ph kukosha uye inowedzera. Kuti udzore hunhu hweVISCOSICES hweHPMC, izvi zvinhu zvinoda kugadziriswa zvine musoro zvichienderana nezvinodiwa chaizvo zvinoda. Nokunzwisisa izvi zvinopesvedzera zvinhu, kuita kweHPMC kunogona kugadzirwa mukugadzirwa kwakasiyana uye kushanduka kwemamiriro ezvinhu kuti uve nechokwadi chekugadzikana kwayo uye kushanda kwakasiyana siyana.
Kutumira Nguva: Kukadzi-15-2025