Hydroxypropyl methylcellulose imhando ye non-ionic cellulose ether inogadzirwa kubva mudonje rakanatswa kuburikidza nemakemikari akasiyana-siyana. Ichinhu chichena chisina hwema, chisina chepfu, chinonyunguduka mumvura uye chinopa mhinduro ye colloidal yakajeka kana ine makore mashoma. Ine hunhu hwekukora, kuchengetedza mvura uye nyore kugadzira. Mhinduro yemvura ye hydroxypropyl methylcellulose HPMC yakagadzikana pakati pe HP3.0-10.0, uye kana iri pasi pe 3 kana kupfuura 10, viscosity ichaderera zvakanyanya.
Basa guru rehydroxypropyl methylcellulose mumota wesimende neputty powder kuchengetedza mvura nekukora, izvo zvinogona kuvandudza kubatana uye kusasimba kwezvinhu.
Zvinhu zvakaita sekupisa nekumhanya kwemhepo zvinokanganisa mwero wekupisa kwemvura mumortar, putty nezvimwe zvigadzirwa, saka mumwaka yakasiyana, mhedzisiro yekuchengetedza mvura yezvigadzirwa zvine huwandu hwakafanana hwe cellulose yakawedzerwa ichavewo nemisiyano. Mukugadzirwa kwayo, mhedzisiro yekuchengetedza mvura yeslurry inogona kugadziriswa nekuwedzera kana kuderedza huwandu hweHPMC yakawedzerwa. Kuchengetwa kwemvura kwehydroxypropyl methylcellulose HPMC pakupisa kwakanyanya chiratidzo chakakosha chekusiyanisa mhando yeHPMC. HPMC yakanaka inogona kugadzirisa zvinobudirira dambudziko rekuchengetedza mvura mumamiriro ekupisa kwakanyanya. Mumwaka wakaoma nenzvimbo dzine kupisa kwakanyanya uye kumhanya kwemhepo kwakanyanya, zvakakosha kushandisa HPMC yepamusoro-soro kuti uvandudze mashandiro ekuchengetedza mvura yeslurry.
Saka, mukuvaka kwezhizha kunodziya zvakanyanya, kuti mvura irambe ichichengetwa zvakanaka, zvakakosha kuwedzera huwandu hwakakwana hweHPMC yemhando yepamusoro zvichienderana nefomura, zvikasadaro pachava nematambudziko emhando yepamusoro akadai sekushaya mvura yakakwana, kuderera kwesimba, kutsemuka, kuvharika uye kudonha kunokonzerwa nekuoma nekukurumidza, uye panguva imwe chete zvinowedzera kuoma kwekuvaka kwevashandi. Sezvo tembiricha ichidzikira, huwandu hweHPMC hunowedzerwa hunogona kudzikiswa zvishoma nezvishoma, uye mhedzisiro imwechete yekuchengetedza mvura inogona kuwanikwa.
Mukugadzirwa kwezvinhu zvekuvaka, hydroxypropyl methylcellulose chinhu chinodiwa zvikuru. Mushure mekuwedzera HPMC, zvinhu zvinotevera zvinogona kuvandudzwa:
1. Kuchengetwa kwemvura: Kuvandudza kuchengetwa kwemvura, kuvandudza simende, putty yakaoma inooma nekukurumidza uye kusakwana kwemvura zvakakonzera kuomarara, kutsemuka nezvimwe zviitiko.
2. Kunamira: Nekuda kwekuvandudzwa kwepurasitiki yedhaka, rinogona kubatanidza zviri nani substrate nechinamira.
3. Kudzivirira kudonha: Nekuda kwekukora kwayo, inogona kudzivirira kutsvedza kwedhaka nezvinhu zvakanamirwa panguva yekuvaka.
4. Kugona kushanda: Wedzera kuchena kwedhaka, kuvandudza maindasitiri ekuvaka uye kuvandudza kushanda zvakanaka kwebasa.
Nguva yekutumira: Kubvumbi-12-2023