Hydroxypropyl methylcellulose (HPMC)ipolymer inonyungudika mumvura inoshandiswa zvakanyanya mumishonga, kuvaka, chikafu, zvizoro nedzimwe nzvimbo. Hunhu hwayo hwekunakisa chinhu chakakosha pakuyera maitiro ayo e rheological munzvimbo dzakasiyana. Kunzwisisa hunhu hwekunakisa hwe HPMC aqueous solution kunotibatsira kunzwisisa zviri nani maitiro ayo uye mashandiro ayo mumashandisirwo akasiyana-siyana.
1. Maumbirwo emakemikari uye hunhu hweHPMC
HPMC inowanikwa nekuchinja kwemakemikari e cellulose yechisikigo, kunyanya inoumbwa ne hydroxypropylation uye methylation yemamorekuru e cellulose. Muchimiro chemakemikari cheHPMC, kuunzwa kwemapoka e methyl (-OCH₃) uye hydroxypropyl (-OCH₂CHOHCH₃) kunoita kuti inyungudike mumvura uye ine kugona kwakanaka kwekugadzirisa viscosity. Kushanda kwe viscosity kwemvura yayo pahuwandu hwakasiyana uye tembiricha kunokanganiswa nezvinhu zvakawanda zvakaita sehuremu hwemamorekuru, mwero wekutsiva, huwandu hwemhinduro, nezvimwewo.
2. Hukama huripo pakati pekusimba uye kusimba
Kuwanda kweAnxinCel®HPMC mvura inoyerera kunowanzowedzera nekuwedzera kwehuwandu hwemvura. Izvi zvinodaro nekuti pahuwandu hwakawanda hwemvura, kudyidzana pakati pemamorekuru kunowedzerwa, zvichikonzera kuramba kuyerera kwemvura zvakanyanya. Zvisinei, hunhu hwekunyungudika uye hwekunyungudika kweHPMC mumvura hunokanganiswawo nehuremu hwemamorekuru. HPMC ine huremu hwakawanda hwemvura inowanzoratidza kuwanda kwemvura, nepo huremu hwakaderera hwemvura hushoma.
Kana huwandu hwacho hwakaderera: Mhinduro yeHPMC inoratidza viscosity yakaderera kana huwandu hwacho hwakaderera (senge huri pasi pe0.5%). Panguva ino, kudyidzana pakati pemamorekuru hakuna kusimba uye kuyerera kwemvura kwakanaka. Inowanzo shandiswa mukushandiswa kwakadai sekuputira uye kuburitswa kwenguva refu kwemishonga.
Pahuwandu hwakawanda: Pahuwandu hwakawanda (se2% kana kupfuura), viscosity ye HPMC aqueous solution inowedzera zvakanyanya, ichiratidza hunhu hwakafanana ne colloidal solutions. Panguva ino, kuyerera kwemvura ye solution kunogona kuramba zvakanyanya.
3. Hukama huripo pakati pekusimba uye tembiricha
Kusviba kwemvura yeHPMC kunonyanya kukanganiswa nekupisa. Sezvo tembiricha ichiwedzera, kufamba pakati pemamorekuru emvura kunowedzera, uye kudyidzana pakati pemamorekuru eHPMC kunowedzera kushata, zvichikonzera kudzikira kweviscosity. Hunhu uhwu hunoita kuti kushandiswa kweHPMC patembiricha dzakasiyana kuratidze kuchinjika kwakasimba. Semuenzaniso, mumamiriro ekupisa kwakanyanya, viscosity yeHPMC inowanzo kudzikira, izvo zvinonyanya kukosha mukuita kwemishonga, kunyanya mumhando dzedosi dzinoburitswa nemishonga, uko shanduko dzetembiricha dzinogona kukanganisa kugadzikana uye mhedzisiro yemhinduro.
4. Mhedzisiro yepH paViscosity
Kusimba kwemvura yeHPMC kunogonawo kukanganiswa nekukosha kwepH yemushonga. Kunyangwe HPMC isiri chinhu chisiri cheionic, hydrphilicity yayo uye hunhu hwayo hwekusimba zvinonyanya kukanganiswa nechimiro chemamorekuru nenzvimbo yemushonga. Zvisinei, mumamiriro ezvinhu ane acid yakawanda kana kuti alkaline, kusimba uye chimiro chemamorekuru cheHPMC zvinogona kuchinja, zvichikanganisa kusimba. Semuenzaniso, mumamiriro ezvinhu ane acid, kusimba kweHPMC kunogona kuderera zvishoma, zvichikonzera kuwedzera kusimba; nepo mumamiriro ezvinhu ane alkaline, hydrolysis yeimwe HPMC inogona kukonzera kusimba kwemasero ayo, nokudaro ichideredza kusimba kwayo.
5. Kurema kweMorekuru uye Kusviba
Kurema kwemamorekuru chimwe chezvinhu zvakakosha zvinokanganisa kusimba kwemvura yeHPMC. Kurema kwakanyanya kwemamorekuru kunowedzera kusangana uye kubatana pakati pemamorekuru, zvichikonzera kuwedzera kusimba. Kurema kwakaderera kwemamorekuru AnxinCel®HPMC ine kunyungudika kuri nani mumvura uye kusimba kwakaderera. Zvinodiwa zvakasiyana zvekushandisa zvinowanzoda kusarudzwa kweHPMC ine huremu hwakasiyana hwemamorekuru. Semuenzaniso, mukuputira uye kunamira, HPMC ine huremu hwakawanda hwemamorekuru inowanzo sarudzwa kuti inamatire zviri nani uye ishande zvakanaka; nepo mukugadzira mishonga, HPMC ine huremu hwakaderera hwemamorekuru inogona kushandiswa kudzora mwero wekuburitswa kwemishonga.
6. Hukama huripo pakati pehuwandu hwekuchekwa kwebvudzi uye kusimba kwebvudzi
Kusviba kwemvura yeHPMC inowanzo chinja nechiyero chekuchekwa kwepurasitiki, zvichiratidza maitiro akajairika epseudoplastic rheological. Pseudoplastic fluid imvura ine viscosity inodzikira zvishoma nezvishoma nekuwedzera kwechiyero chekuchekwa kwepurasitiki. Hunhu uhwu hunogonesa HPMC solution kuchengetedza viscosity yakakwira pachiyero chekuchekwa kwepurasitiki chakaderera kana yaiswa, uye kuwedzera kusviba kwechiyero chekuchekwa kwepurasitiki chakakwira. Semuenzaniso, muindasitiri yekupeta, HPMC solution inowanzo fanirwa kuratidza viscosity yakakwira pachiyero chekuchekwa kwepurasitiki chakaderera kana yaiswa kuti ive nechokwadi chekunamatira uye kuenzana kwepeta, nepo panguva yekuvaka, zvinodikanwa kuwedzera chiyero chekuchekwa kwepurasitiki kuti iwedzere kusviba.
7. Maitiro ekushandisa uye viscosity eHPMC
Hunhu hwe viscosityHPMCIta kuti ishandiswe zvakanyanya muminda yakawanda. Semuenzaniso, muindasitiri yemishonga, HPMC inowanzoshandiswa sechinhu chinoburitsa mushonga kwenguva refu, uye mutemo wayo wekusviba unoshandiswa kudzora mwero wekuburitsa mushonga; muindasitiri yekuvaka, HPMC inoshandiswa sechinhu chinosimbisa simbi kuti ivandudze kushanda uye kuyerera kwedhaka neadhesives; muindasitiri yezvekudya, HPMC inogona kushandiswa sechinhu chinosimbisa simbi, chinosanganisa simbi uye chinosimbisa simbi kuti ivandudze kuravira uye chitarisiko chechikafu.
Hunhu hwekusviba kweAnxinCel®HPMC mvura inonyunguduka ndiyo kiyi yekushandiswa kwayo muminda yakasiyana. Kunzwisisa hukama hwayo nezvinhu zvakaita sekuwanda, tembiricha, pH, huremu hwemamorekuru uye mwero wekuchekwa kwemvura zvakakosha zvikuru pakuvandudza mashandiro echigadzirwa uye kuvandudza mhedzisiro yekushandiswa.
Nguva yekutumira: Ndira-27-2025