Kuzvimanikidza muchato muchimiro chivakwa chinowanzoshandiswa mukuvakwa kwepasi. Iyo ine fluidity yakanaka, yakanyanya kuderera uye yakaderera shrinkage. Zvishongo zvayo zvinosanganisira zvinosanganisira simende, yakanaka aggregate, modifiers nemvura. Sezvo maindasitiri ekuvaka emuindasitiri ekushanda kwekuvaka uye hunhu hunoramba huri kuwedzera, kuita kweiyo motokari yekuzvimiririra kazhinji kunowanzo kurambidzwa nezvinhu zvakadai sekuti fluity
Hpc Iyo polymer zvinhu zvinoenderana ne cellulose uye yakagadzirwa nemakemikari kugadzirisa. Iyo ine yakanaka mvura solubility, kurerutsa uye kwemvura kuchengetedza zvinhu. Kushandiswa kwayo mukuzvimiririra muchengeti unokwanisa kubatsira zvinobudirira kushanda kwekuvaka, kupaza kupokana, kudzokorora kwemvura, nezvimwewo.
1. Basic Properties yeHPMC
HPMC iri poldu-soluble polymer yakagadzirirwa nekuunza methyl uye hydroxyprupropyl mapoka mu cellulose mamorekuru. Iyo ine inotevera inozivikanwa zvinhu:
Kukakavara: Kimicell®hpmc inogona kuwedzera zvakanyanya zvisizvo zvemhinduro, nekudaro kugadzirisa fluidity yeiyo yekuzvibatanidza dhiri.
Kudzokorora kwemvura: HPMC inogona kubatsira zvinobudirira kunyorova mudhaka, dzivirira kukurumidza kubuda kwemucheka, uye ita simbisa iyo yakazara hydration yekuita simenti.
Kupindirwa: Kuwedzera kweHPMC kunogona kuvandudza basa rekuvaka kweiyo duri, kugadzira dhizaini kuyerera zvakanyanya pasi uye kudzivirira mabhuruu uye marara.
ADhemon: Inogonawo kuvandudza kudenha pakati pechidimbu uye substrate kumusoro uye kusimudzira iyo yakanamatira yeiyo yekuzvibatanidza dhiri.
2. Iyo chaiyo yekukanganisa yeHPMC pane iyo mashandiro ekuzvivhara wega
Fluidity uye zvivakwa zvekuvaka
HPMC, seanoti, ine basa rekuvandudza flidiity mune yekuzvikudza marara. Fluilifity iyo yakakosha midziyo mukuvakwa kwekuzvimiririra, iyo inokanganisa kutsvedza uye kumhanya kwekuvaka. Zvidzidzo zvakaratidza kuti huwandu hwakakodzera hpmc hunogona kuvandudza huku hwakaoma, zvichiita kuti zvive nyore kurara, uku uchidzivisa kuyerera kusingaenderani kunokonzerwa nekudanwa kwakawandisa kwerudzi. Nekudzora huwandu hweHPMC, iyo fluidity yemuti inogona kugadziriswa kuti ive nechokwadi chekuti haina kurasikirwa nehurema kana kuwanzotete, nekukasira kuita zvekugadzira.
Kuchengeta mvura
Kuchengetwa kwemvura kweHPMC ndiyo imwe yakakosha mukana mukushandisa kwayo mukuzvimiririra mudhara. Unyoro mukuzvimiririra muchengeti chicharasika kuburikidza nekubuda kwemvura panguva yekuvaka. Kana iyo unyoro racho riraswa nekukurumidza, rinogona kukonzera kuoma uye kupaza kwemotokari, uye kunyange kukanganisa maitiro ehuma yeiyo simende. HPMC inogona kunonoka kubvumidza kubuda kwemvura nekuumba hydration, ichiva nechokwadi chekuti iyo hydration yakaitwa simende inogona kuenderera zvizere. Izvi zvinogona kudzivirira iyo dhizaini kubva pakuomesa kunze kwekukurumidza uye kuderedza marara uye urema panguva yekuvaka.
Kupaza kuramba
Kuzvimiririra-kuganhurana marara kazhinji kunowanzo wasangana nematambudziko ekupaza kunokonzerwa nekudziya kana tembiricha shanduko. Kuwedzerwa kwekimacell®hpmc kunogona kuvandudza kuchengetwa kwemvura kwemvura, kunonoka kubuda kwemvura kubhururuka, uye kuderedza kuderera kwemutya, nekudaro kugadzirisa kupenga kupokana. Iyo molecular chimiro cheHPMC inogona kuumba yunifomu yekuparadzira system mu coment matrix, fungidzira iyo isina kujeka shinoge yemotokari panguva yekuomesa, uye kuderedza kuitika kwemaza.
Adhishing
Iyo yakakwira viscosity yeHPMC inobatsira kuvandudza kuderedza kweiyo duri, kunyanya kusungwa pamwe neiyo substrate panguva yekuisa. Imwe yemabasa makuru ekuzvimiririra marara ndeyekukanda pasi uye ipa kusimba kwakasimba. HPMC inogona kuwedzera kudenha pakati pemufambi uye pasi, kudzivirira phenomenon yepamhepo pakati peiyo yekuzvimiririra denderedzwa uye nekuvandudza mwero wekuvaka .
Anti-Foaming uye kuunganidza zvivakwa
Iko kuunganidzwa uye foam kudzora kwekuzvibata pachako marara zvakare nyaya dzinoda kutariswa kwenguva yekuvaka. Iyo moleky chimiro cheHPMC inogona kubatsira kuderedza kudya kwemhepo mumotokari, dzivirira kuumbwa kwemabubbles, uye ona kuti isimbe uye density yedhaka. Nekuvandudza mwero wekuvandudza mauto ekuzvimirira, HPMC inogona kuve nechokwadi chekukatyamadza yemutengo wekuzvimiririra mukuvakwa kwakakura-nzvimbo yekuvaka uye kuvandudza kunaka kwechigadzirwa chakapera.
3. Optimization yeHPMC Dosage
Kunyangwe HPMC ine zvakawanda zvinokonzeresa kuita kwekuzvimiririra kwekuzvimiririra, kusarudzwa kweiyo dosage yaro inotsoropodza. Yakawandisa HPMC ichaita iyo dorari yakawandisa viscous uye inokanganisa fluidity; Nepo diki diki hpmc isingazokwanise kunyatsoita simba uye kudzokorora kwemvura. Naizvozvo, huwandu hwakakodzera hweHPMC rakawedzerwa hunoda kugadziridzwa zvinoenderana nezvimiro zvakasiyana uye zvinodiwa pakuvaka. Kazhinji, iyo yakakodzera huwandu hweHPMC yakawedzerwa iri pakati pe0.1% uye 0.5%, uye chaiyo chiyero chinoda kuve yakagadzirirwa zvichienderana nezvinodiwa chaizvo zvinoitwa nemutumbi.
Seyakakosha modifier,Hydroxypruppropyl methylcellose(Hpc) ine kukosha kwakakosha kwekugadzirisa maitiro kana ichishandiswa mukuzvimiririra. Inogona kuvandudza fluidity, kuchengetwa kwemvura, kupaza kuramba uye kuderedza. Mari yakakodzera yekimacell®hpmc inogona kubatsira zvinobudirira uye upenyu hwebasa hwekuzvimiririra, nekudaro kusangana nezvinodiwa zvekuvaka zvazvino zvehunhu hwekuvaka uye kushanda zvakanaka. Naizvozvo, mukugadzira magadzirirwo ekuzvimiririra, kushandiswa kwekunyepedzera kweHPMC inzira yakakosha yehunyanzvi. Nekudaro, iyo dosage yeHPMC uye kugadziriswa kweiyo formula inoda kuve yakagadzirirwa maererano nemamiriro ezvinhu ekuvaka uye zvinodiwa pakuita kuti uwane zvakanakisa zvekuvaka.
Kutumira Nguva: Jan-18-2025