Hydroxyprupyl methylcellose (HPMC) is is is is is is is-ionic mvura-yekunyora polymer yakawanikwa yakawanikwa nemakemikari kugadziridzwa kwemasikirwo emusikirwo cellulose. Iyo inoshandiswa zvakanyanya mune zvekudya, mushonga, cosmetics uye maindasitiri ekuvaka, kunyanya sekunamatira, thickener, emulsifieri uye kumhanyisa mumiriri mukugadzirira kwemigadziri. Mukuita kwekushandisa, hunhu hweViscoositics dzeHPMC Mvura mhinduro yakakosha pakuita kwayo muminda dzakasiyana.
1. Chimiro uye zvivakwa zve hydroxypropyl methylcellose
Iyo moleky chimiro cheHPMC ine mapoka maviri ekutsiva, hydroxypruppropyl (-ch₂Chohch₃) uye methyl (-och₃), izvo zvinoita kuti ive neyakagwinya mvura solubility uye kusarudzika kugona. Iyo HPMC molecular cheni ine chimwe chimiro chakaomarara, asi chinogona zvakare kuumba matatu-dimensional network chimiro mumamiriro ekunze mhinduro, zvichikonzera kuwedzera kwe viscosity. Huremu hwayo hunorema, mhando yekutsiva uye degree rekutsiva (kureva
2. Hunhu hweviscosity yemhinduro mhinduro
Hunhu hweVISCOSICS dzeHPMC Mvura mhinduro zvine hukama zvakanyanya nezvinhu zvakadai sekusangana, suremu uye tembiricha uye tembiricha yeiyo solvent. Kazhinji, zvisizvo zveHPMC Mvura mhinduro inowedzera nekuwedzera kwekusangana kwayo. Viscosity yayo inoratidza isiri-Newtomian Rheological maitiro, sekuti, sezvo chiyero chengarava chinowedzera, iyo visikoka yeiyo mhinduro zvishoma nezvishoma inoderera, ichiratidza shefinzoni inotetepa.
(1) Mhedzisiro yekuisa pfungwa
Iko kune humwe hukama pakati peiyo viscosity yeHPMC mhinduro mhinduro uye yayo yekumanikidza. Sezvo kusangana kweHPMC inowedzera, kuwirirana kwemvura mumvura mumvura kunowedzerwa, uye kusunganidzwa uye kuunganidza zvimedu zvemanyorerwo zvinowedzera, zvichikonzera kuwedzera kweiyo viscosity mhinduro. Pakusangana kwepasi, iyo visikopo yeHPMC yemamiriro ekunze inowedzera mutsara nekuwedzera kwekuwedzera, asi pakakwirira, kukura kweViscosity kwemhinduro kunowanzove flat uye kunosvika kukosha kwakasimba.
(2) mhedzisiro yehuremu hwemanyorerwe
Iyo smecular uremu hweHPMC zvakananga zvinokanganisa zvisizvo zvemhedzisiro yayo mhinduro. HPMC ine yakakwira molecular uremu ine manyorerwo emanyorerwo uye inogona kuumba yakaomarara katatu-dimensional network network mamiriro mumamiriro ekunze, zvichikonzera kusimba kwepamusoro. Mukupesana, HPMC ine yakaderera molecular uremu ine chikwereti chechimiro chechimiro uye kuderera viscosity nekuda kwechidimbu chayo chepfupi. Naizvozvo, kana uchishandisa, zvakakosha kwazvo kusarudza HPMC nehuremu hwakafanira hwemanyorero kuti uwane iyo yakakodzera viscosity mhedzisiro.
(3) mhedzisiro yekushisa
Tembiricha chinhu chakakosha chinokanganisa zvevasokisi zveHPMC mhinduro mhinduro. Sezvo tembiricha inowedzera, kufamba kwemamolekyudhi emvura kunowedzera uye vhiza yemhinduro kazhinji inoderera. Izvi zvinodaro nekuti kana tembiricha ichisimuka, rusununguko rweHPMC molecular cheni inowedzera uye kuwirirana pakati pemamolecoles kunetesa, nekukasira kuderedza viscosity yemhinduro. Nekudaro, mhinduro yeHPMC kubva kune mabhebhi akasiyana kana mabhureki ekutuka anogona zvakare kusiyana, saka mamiriro ekupisa anofanirwa kugadziridzwa maererano nezvinodiwa chaizvo.
(4) mhedzisiro yePP kukosha
HPMC pachayo ndeye isiri-ionic compund, uye visikopa yemhedzisiro yayo mhinduro inokatyamadza yekuchinja muP. Kunyangwe HPMC ichiratidza zvakabatana zvimiro zvevatenzi muActics mune acidic mano Semuenzaniso, pasi pemamiriro ekunze akasimba kana akasimba alkaline mamiriro, iyo HPMC mamorekuru inogona kusvibiswa zvishoma, nekudaro ichidzora mavhoti emhedzisiro yayo mhinduro.
3. Kuongororwa kweRheological kweVisaSisity maitiro eHPMC Mhedzisiro Mhinduro
Maitiro ekunyepedzera eHPMC emhedzisiro anowanzo simbisa isiri-Newtonian Fluid maitiro, zvinoreva kuti viscosity yayo haina kungoenderana nezvinhu zvakadai sekugadzirisa uye suremu, asi zvakare kuhuremu. Kazhinji, pamari yakaderera shea, HPMC yemvura mhinduro inoratidza yakakwira viscosity, nepo sezvo chiyero chhebhela chinowedzera, visikoka chinoderera. Uyu maitiro anonzi "shear kutetepa" kana "shear kutetepa" uye yakakosha kwazvo mune zvakawanda zvinoshanda zvinoshanda. Semuenzaniso, muminda yejasi, kugadzirira kwekudya, etc.
4. Zvimwe zvinhu zvinokanganisa vhiza yeHPMC mhinduro mhinduro
(1) mhedzisiro yemunyu
Kuwedzerwa kwemunyu kunoshanda (senge sodium chloride) kunogona kuwedzera iyo visikopa yeHPMC kumhedzisiro mhinduro. Izvi zvinodaro nekuti munyu unogona kuwedzera kutaurirana pakati pemamorekuru nekuchinja ionic simba reiyo mhinduro, saka HPMC mamorekuru vanoumba zvimwe compact network chimiro, nekudaro vanowedzera viscosity. Nekudaro, mhedzisiro yemhando yemunyu uye yekuvhara pane viscosity zvakare inoda zvakare kugadziridzwa zvinoenderana nemamiriro ezvinhu chaiwo.
(2) mhedzisiro yevamwe vanowedzera
Kuwedzera zvimwe zvinowedzera (senge surfachants, polymers, nezvimwewo) kune HPMC Mvura mhinduro ichakanganisawo viscosity. Semuenzaniso, surfacts inogona kuderedza zvevisiko zveHPMC, kunyanya kana iyo Surnantant Confornation yakakwira. Uye zvakare, dzimwe polymers kana masisitimu dzinogona zvakare kupindirana neHPMC uye shandura zvivakwa zvetsiva zvemhinduro.
Hunhu hweviscosity ofhydroxypruppropyl methylcellose Mhinduro yemvura inokanganiswa nezvinhu zvakawanda, kusanganisira kusimbisa, suremu, tembiricha, etc. Kunzwisisa uye kugona aya viscosity maitiro anobatsira optimeize kushandiswa kweHPMC mune dzakasiyana zvikumbiro. Mune zvinoshanda zvinoshanda, iyo yakakodzera HPMC mhando uye mamiriro emamiriro ezvinhu anofanira kusarudzwa zvichienderana nezvaanoda kuwana viscosity yakanaka uye zvivakwa zvevanori.
Kutumira Nguva: Mar-01-2025