Viscosity hunhu hwe hydroxyprusyl methylcellose (HPMC) mhinduro yemhedzisiro

Hydroxyprupyl methylcellose (HPMC)ishandise yakashandiswa-mvura-yakashandiswa mvura-yakasiyana-siyana zvikumbiro zvekushandisa, kunyanya mumishonga yemishonga, chikafu, uye zvigadzirwa zvevachinjiki. Kugona kwayo kuumba gobvu, gel-semhinduro kana yakasanganiswa nemvura inoita kuti ive chinhu chose chinongedzo. Iyo viscosity yeKimacell®hpmc Solutions inotora basa rakakosha mukusarudza kwavo kuita mune dzakasiyana mafomu. Kunzwisisa hunhu hweViscosity dzeHPMC Mvura mhinduro dzakakosha kuti dzokorora kushandiswa kwavo mumaindasitiri akasiyana.

1. Nhanganyaya kuHydroxyPropyl Methylcellose (HPMC)

Hydroxyprondryl methylcellose ndeye semi-synthetic inobva cellulose. Iyo inogadzirwa nekutsiva kwemheremello ine hydroxyprupropyl mapoka uye methyl mapoka. Chiyero cheiyi nzvimbo chinogona kusiyana, zvichitungamira kumakiredhi akasiyana eHPMC nehurongwa hwakasiyana, kusanganisira viscosity. Chimiro chakajairika cheHPMC chine cellulose backbone ne hydroxyprosyl uye methyl mapoka akasungirirwa kune zvikamu zveglucose.

HPMC inoshandiswa mune dzakasiyana-siyana maindasitiri nekuda kweiyo biocomputer yayo, kugona kuumba gels, uye kusununguka kwekunyura mumvura. Mumvura, hpmc inozvibata seblue isiri-yeionic, yemvura-mvura inokanganisa zvakanyanya zvimiro zvemhinduro, kunyanya viscosity.

2. Viscosity hunhu hweHPMC mhinduro

Iyo viscosity yeHPMC Solutions inokurudzirwa nezvikamu zvinoverengeka, kusanganisira kusunganidzwa kweHPMC, iyo smecular uremu hwePolymer, tembiricha, uye hwokuvapo kwemunyu kana mamwe maitiro. Pazasi pane zvinhu zvakakosha zvinotonga maitiro eViscosity eHPMC mumvura mhinduro:

Kusvinura kweHPMC: Iyo viscosity inowedzera sekusangana kweHPMC inowedzera. Pakunyika yakakwirira, HPMC mamorekuru inobata zvakanyanya kune mumwe nemumwe, zvichitungamira mukukwira kwepamusoro kuyerera.

Solecular uremu hweHPMC. Yakakwira Molecular uremu HPMC Giredhi dzinowanzogadzira zvimwe zveviscous mhinduro. Izvi zvinodaro nekuti hombe polymer mamorekuru gadzira zvakanyanya kupokana kuyerera nekuda kwekuwedzera kwavo kwekunhuhwirira uye kupokana.

Tembiricha: Viscosity kazhinji inoderera sekupisa kwekuwedzera. Izvi zvinodaro nekuti tembiricha yakakwirira inoguma nekudzikiswa kwemauto ezvekuita pakati peHPMC mamorekuru, nekudaro achideredza kugona kwavo kuramba kuyerera.

Shear Rate. Parizi dzinodzikira, HPMC Solutions Ratidza High High Viscosity, nepo kumahombekombe eShear kwakakwirira, iyo viscosity inoderera nekuda kweshefita maitiro.

Mhedzisiro yeIonic Simba: Kuvapo kweElectrolytes (senge saltts) mumhinduro inogona kushandura viscosity. Mamwe mapundu anogona kuongorora masimba ekudzora pakati pemaketani emapolymin, achivatora kuti vaunganidze uye zvichikonzera kuderera kwemisangano.

3. Viscosity vs. kusangana: Kuongorora kwekuongorora

Maitiro akajairwa akacherechedzwa muedzo ndeyekuti visikopa yeHPMC kusara kwemvura mhinduro dzinowedzera kuwedzera nekuwedzera polymer constinstiration. Ukama pakati pevisikopo uye kusunganidzwa kunogona kutsanangurwa neyekutevera Empirical equation, inowanzoshandiswa kune yakasarudzika polymer mhinduro mhinduro:

IC = ACN \ ETA = AC ^ n ma = acn

Kupi:

η \ Etain ndiyo viscosity

CCC ndiko kuisirwa kweHPMC

AAA uye NNN inomarara idzo dzinoenderana nerudzi rwehukuru hweHPMC uye mamiriro emhinduro.

Zvekukora, hukama hwakadzika, asi sekuwedzera kwekuwedzera, zvaunga zvichisimuka, zvichiratidza kuwanda kwekudyidzana pakati pemaketani.

4. Viscosity vs. molecular uremu

Iyo molecular uremu hwekimacell®hpmc inotora chikamu chakakosha mune yayo viscosity maitiro. Yakakwira Molecular uremu HPMC Polymers inowanzo kuumba mamwe madhiri ekunyora pane yakaderera makomendi akaenzana nehuremu hwehuremu hwehuremu hwehuremu. Iyo viscosity yemhinduro yakaitwa kubva kumusoro-molecular-siremu hpmc inogona kusvika kune akati wandei mirairo yehukuru pane iyo yekugadzirisa yakagadzirwa kubva kuderera-molecular-sight hpmc.

Semuenzaniso, mhinduro yeHPMC ine smecular uremu hwe00,000 da zvicharatidza kukwirira kwepamusoro pane imwe ine smecular uremu hwemakumi mashanu emadha pane imwecheteyo yekushomeka.

5. Tembiricha mhedzisiro pane viscosity

Tembiricha ine kukosha kwakanyanya pane viscosity yeHPMC mhinduro. Kuwedzera kwe tembiricha kunotungamira kune kuderedzwa kwemisoro yemhinduro. Izvi zvinonyanya kukonzerwa neyekupedzisira kufamba kwemaketani emapuranga, izvo zvinoita kuti vatamire vakasununguka, vachideredza kuramba kwavo kuyerera. Mhedzisiro yekushisa pane viscosity inowanzo kuiswa uchishandisa arrhenius-mhando equation:

η (t) = η0eeart \ eta (t) = \ eta_0 e ^ {\ frac {e_} {rt}} η (t) {RT}} η (t) {

Kupi:

η (t) \ eta (t) η (t) ndeye viscosity pa tembiricha ttt

η0 \ Eta_06 ndiyo pre-elubonential factor (viscosity pane infinite tembiricha)

EAE_AEA ndiyo simba rekuita

Rrr ndiyo gasi rinogara riripo

TTT ndikoisa tembiricha

6. Rheological maitiro

Iyo rheology yeHPMC yemukati mhinduro inowanzotsanangurwa seNon-Newtonian, zvichireva kuti viscosity yemhinduro haisi nguva dzose asi inosiyana neyekuisa shear rate. Parizi dzinodzikira, HPMC Solutions inoratidzira viscosity yakakwira nekuda kwekunetseka kwemaketani emapolymer. Nekudaro, sezvo rate Sheari inowedzera, visikoka inoderera-chiitiko chinozivikanwa sekutetepa sheare.

Iyi shear-yekufungidzira maitiro yakafanana nemhinduro zhinji dzePolymer, kusanganisira HPMC. Iyo Shear Rate Kuderera kweVisaCosity kunogona kutsanangurwa uchishandisa iyo Simba-Mutemo Model:

η (˙˙) = k˙˙n-1 \ eta (\ dot {\ gamba {\ gamma}) = k> dot {{˙) = kab0 n-1

Kupi:

˙˙ \ dot {\ gamma} ˙˙ ndiyo shear rate

KKK ndiyo index yakasarudzika

nnn ndiyo inoyerera maitiro index (ine n <1n <1n <1 ye shear kuonda)

7. Viscosity yeHPMC Solutions: Pfupiso tafura

Pazasi patafura kupfupisa maitiro eViscosity yeHPMC Makwikwi mhinduro mumamiriro ezvinhu akasiyana-siyana:

Hunhu hweviscosity ofHpcMhinduro dzemukati dzinokurudzirwa nezvikamu zvinoverengeka, kusanganisira kusunganidzwa, manyorerwo, tembiricha, uye shear rate. HPMC chinhu chakanyanya-chinhu chinowanika, uye zvivakwa zvaro zvacho zvinogona kugadziriswa zvikumbiro zvakati wandei nekugadzirisa iyi paramita. Kunzwisisa izvi zvinhu zvinobvumira kushandiswa kwakakwana kwekimacell®hpmc mumasango akasiyana-siyana, kubva pamishonga yekudya kune chikafu uye cosmetics. Nekunyengera mamiriro ezvinhu pasi peiyo HPMC yakanyungudutswa, vagadziri vanogona kuwana viscosity yaunoda uye kuyerera kuyerera kune zvavanoda chaizvo.