Hydroxyprupyl methylcellose (HPMC)Icho chinonyadziswa-mvura-soluble polymer inoshandiswa zvakanyanya mumishonga yemishonga, kuvaka, chikafu, chizoro uye mimwe minda. Yayo viscosity midziyo muparamende yakakosha kuyera maitiro ayo eReological maitiro pasi penzvimbo dzakasiyana. Kunzwisisa iyo viscossity midziyo yeHPMC yemvura mhinduro inotibatsira zvirinani kunzwisisa maitiro ayo uye kushanda mune dzakasiyana siyana application.
1. Chemical chimiro uye zvivakwa zveHPMC
HPMC inowanikwa nemakemikari kugadziridzwa kwemasikirwo mheremalose Cellulose, inonyanya kuumbwa nehydroxypruslation uye methylation ye cellulose mamorekuru. Muzvimiro zvemakemikari zveHPMC, Sumo yeMethyl (-Och₃) uye hydroxchichch₃ Kuita viscosity yemhinduro yayo yekunyora pane dzakasiyana-siyana dzekutenderera uye tembiricha inokanganiswa nezvakawanda zvinhu zvakadai seyekutsiva, degree rekutsiva, etc.
2. Ukama pakati peviscosity uye kusungwa
Iyo viscosity yekusagadzikana®HPMC yemamiriro ekunze mhinduro kazhinji inowedzera nekuwedzera kusunganidzwa. Izvi zvinodaro nekuti pazvinhu zvepamusoro, kudyidzana kuri pakati pemabholeni kunosimbiswa, zvichikonzera kuwanda kuramba kuparara. Nekudaro, iyo solubility uye viscosity hunhu hweHPMC mumvura zvinokanganiswawo nehuremu hwemanyorerwe. HPMC ine yakakura molecular uremu kazhinji inowanzo kuratidzira yepamusoro viscosity, nepo yakaderera molecular uremu hwakaderera.
Pakukwenenzverwa-kuderera: HPMC Solution inoratidza kuderedza kuderera viscosity pane yakaderera makomendi (senge pazasi 0.5%). Panguva ino, kudyidzana kuri pakati pemamorekuru hakuna kusimba uye kunhuwa kwakanaka. Izvo zvinowanzoshandiswa mukushandisa zvakadai sejasi uye zvinodhaka zvakaburitswa.
Pakunetseka kwakanyanya: pane yakakwirira nzvimbo (yakadai se2% kana yakakwirira), iyo visikopo yeHPMC yemvura inowedzera inowedzera zvakanyanya, kuratidza zvivakwa zvakafanana nemhinduro dzakaenzana. Panguva ino, kubuda kweiyo mhinduro kunoenderana nekupokana kukuru.
3. Ukama pakati peviscosity uye tembiricha
Iyo viscosity yeHPMC yemvura mhinduro ine hanya zvakanyanya nekushisa tembiricha. Sezvo tembiricha inowedzera, kufamba pakati pemamolekyudhi emvura kunowedzera, uye kudyidzana pakati peHPMC mamorekuru kunova kushaya simba, zvichikonzera kuderera kwemashopu. Hunhu uhwu hunoita kuti kushandiswa kweHPMC kumisa tembiricha dzakasiyana kuratidza kwakasimba. Semuenzaniso, pasi pemamiriro ekunze epamusoro, iwo mavheti eHPMC anowanzo kuderera, izvo zvinonyanya kukosha mumishonga yekushomeka, inonyanya kusunungura zvinodhaka madhiri, apo shanduko yekudziya inogona kukanganisa kugadzikana uye mhedzisiro yemhinduro.
4. Mhedzisiro yePH pane viscosity
Iyo viscosity yeHPMC Mvura mhinduro inogona zvakare kukanganiswa nePP kukosha kwemhinduro. Kunyangwe HPMC chinhu chisiri-Ionic chinhu, hydrophilipity uye zvivakwa zvemaVisikopo zvinonyanya kukanganiswa neiyo molecular chimiro uye nzvimbo yekugadzirisa. Nekudaro, pasi peiyo acidic yakanyanya kana alkaline mamiriro, iyo solubiline uye moleky chimiro cheHPMC inogona kuchinja, nekudaro ichikanganisa vhiza. Semuenzaniso, pasi pemamiriro ezvemukati, iyo solubility yeHPMC inogona kushayiwa simba, ichikonzera kuwanda kwevisiko; Ndichiri pasi peAlkaline mamiriro ezvinhu, hydrolysis yemamwe hpmc inogona kukonzera iyo inorema uremu kuderera, nekudaro kuderedza zvavakaita.
5. Molecular uremu uye viscosity
Moreme uremu ndechimwe chezvinhu zvakakosha zvinokanganisa zvisizvo zveHPMC mhinduro mhinduro. Huremu hwepamusoro hune huremu hunowedzera kupinda uye kuyambuka-kuunganidza pakati pemamorekuru, zvichikonzera kuwanda kwevisikoka. Yakadzika molecular uremu kunetseka Zvakawanda zvekushandisa zvishandiso zvinowanzoda kusarudzwa kweHPMC pamwe nezviremero zvakasiyana zvine mwero. Semuenzaniso, mumatangi uye maanomanikidzo, yakakwira molecular uremu hpmc inowanzo sarudzirwa kuti idye zvakanyanya uye fluidity; Ndichiri mugadziriro yemishonga yekugadzirira, yakaderera molecular uremu HPMC inogona kushandiswa kudzora huwandu hwekuburitsa zvinodhaka.
6. Ukama pakati peShear rate uye viscosity
Iyo viscosity yeHPMC yemukati mhinduro kazhinji inochinja nehasha rateh, kuratidza yakajairika pseudoplastic mastic tsika maitiro. Pseudoplastic fluid iri mvura ine viscosity zvishoma nezvishoma inoderera nekuwedzera kwehasha. Hunhu uhwu hunogonesa HPMC Solution yekuchengetedza viscosity yakakwira pane yakaderera shear rate kana yaiswa, uye kuwedzera fluidity kune yakakwirira shear rate. Semuenzaniso, muindasitiri inovhara, HPMC mhinduro inowanzoda kuratidza yakakwira viscosity pane yakaderera Shear rate kana ichisvika pakuverengera, nepo panguva yekuvaka, inodiwa kuti uwedzere ratehwe kugadzira inowedzera fluid.
7. Chikumbiro uye viscosity hunhu hweHPMC
Hunhu hweviscosity ofHpcIta kuti ishandiswe zvakanyanya muminda yakawanda. Semuenzaniso, muindasitiri yemishonga, HPMC inowanzoshandiswa seyakavhurika zvinodhaka Mune indasitiri yekuvaka, HPMC inoshandiswa seanoshandiswa kuti uvandudze kushanda uye kuyerera kwemutya uye kuomerera; Muindasitiri yekudya, HPMC inogona kushandiswa seanotenderedza, emulsififier uye stabilizer yekuvandudza kuravira nekuonekwa kwechikafu.
Iyo viscosity hunhu hwekusagadzikana®HPMC mhinduro mhinduro ndiyo kiyi yekunyorera kwayo muminda dzakasiyana. Kunzwisisa hukama hwayo nezvinhu zvakadai sekusungwa, tembiricha, tembiricha, suremu uye shear uremu hwakakosha hwekusimudzira kwechigadzirwa uye nekuvandudza mhedzisiro.
Kutumira Nguva: Jan-27-2025