Chinhu chekutanga chinokanganisa kuchengetedza kwemvura mukatiHydroxypropyl methylcellulose(HPMC)zvigadzirwa ndiyo dhigirii rekutsiva (DS).DS inoreva nhamba yehydroxypropyl uye methyl mapoka akabatanidzwa kune yega yega cellulose unit.Kazhinji, iyo yakakwirira yeDS, zviri nani kuchengetedza mvura kweHPMC.Izvi zvinodaro nekuti DS yakawedzera inotungamira kune mamwe mapoka e hydrophilic pane cellulose musana, zvichibvumira kudyidzana kwakasimba nemamorekuru emvura uye kukwidziridzwa kwekubata mvura.
Chimwe chinhu chakakosha chinokonzera kuchengetwa kwemvura ndiko kurema kwemamorekuru eHPMC.Huremu hwemamorekuru hunokanganisa viscosity yeHPMC mhinduro, uye yakakwirira mamorekuru huremu mapolymers anowanzo ratidza zvirinani kuchengetedza mvura.Saizi yakakura yeaya mapolymer inogadzira yakawedzera yakakura network chimiro, ichiwedzera kupindirana nemamorekuru emvura uye nekudaro kuvandudza kuchengetwa kwemvura.Nekudaro, zvakakosha kuwana chiyero, sezvo yakawandisa yakakwira molecular huremu hunogona kukonzera kuwedzera viscosity uye kuderera kwekushanda, zvichiita kuti zviome kubata kana kushandisa zvigadzirwa zveHPMC mune mamwe maapplication.
Uyezve, kusungirirwa kweHPMC mukuumbwa kunoitawo basa rakakosha mukuchengetedza mvura.Kukwirira kwepamusoro kweHPMC kunowanzo tungamira kune zvirinani kuchengetedza zvivakwa.Izvi zvinodaro nekuti kukwirisa kunowedzera huwandu hwenzvimbo dze hydrophilic dziripo dzekutorwa kwemvura, zvichikonzera kukwidziridzwa kwekubata kwemvura.Nekudaro, kuwandisa kwakanyanya kunogona kukonzera kuwedzera viscosity, zvichiita kuti kuumbwa kuome kubata nekushandisa.Izvo zvakakosha kuti uwane iyo yakakwana yekusangana kweHPMC zvichibva pane chaiyo application kuti uwane inodiwa yekuchengeta mvura zvivakwa pasina kukanganisa kushanda kwechigadzirwa.
Pamusoro pezvinhu izvi zvekutanga, zvimwe zvinhu zvakasiyana zvinogona kukanganisa kuchengetedza kwemvuraHPMCzvigadzirwa.Rudzi uye huwandu hwezvinowedzera zvinoshandiswa mukugadzirisa zvinogona kuita zvakakosha.Semuenzaniso, kuwedzerwa kweplasticizers kana rheology modifiers kunogona kuwedzera kuchengetwa kwemvura nekushandura kuumbwa kweHPMC uye kudyidzana nemamorekuru emvura.Zvinhu zvezvakatipoteredza zvakaita setembiricha uye hunyoro zvinogonawo kukanganisa kuchengetwa kwemvura, sezvo maparamendi aya achipesvedzera mwero wekubuda kwemvura uye kunyura.Iyo substrate kana zvivakwa zvepasi zvinogona kuwedzera kukanganisa kuchengetwa kwemvura, sezvo misiyano muporosity kana hydrophilicity inogona kukanganisa kugona kweiyo substrate kutora uye kuchengetedza mvura.
Iwo ekuchengetedza mvura zvimiro zvezvigadzirwa zveHPMC zvinopesvedzerwa nezvinhu zvakasiyana, kusanganisira dhigirii rekutsiva, uremu hwemamorekuru, kutarisisa, zvinowedzera, zvakatipoteredza, uye substrate zvivakwa.Kunzwisisa zvinhu izvi kwakakosha mukugadziraHPMC-yakavakirwa zvigadzirwazvemaapplication akasiyana.Nekugadzirisa zvinhu izvi, vagadziri vanogona kusimudzira kuchengetedza kwemvura zvivakwa zveHPMC uye kuve nechokwadi chekushanda kwayo mumaindasitiri akadai semishonga, kuvaka, uye kutarisira wega.Kumwe kutsvagisa nekusimudzira mundima iyi kucharamba kuchiwedzera kunzwisisa kwedu kwezvinhu zvinokanganisa kuchengetwa kwemvura muzvigadzirwa zveHPMC uye kugonesa kuvandudzwa kwezvakanyanya kushanda uye zvinobudirira maumbirwo.
Nguva yekutumira: Nov-02-2023