01. Musiyano uripo pakati pehydroxypropyl methyl yenhema nehydroxypropyl methyl yemhando yepamusoro
Chitarisiko: Starch yakachena HPCM inoita kunge yakaenzana zvakanyanya, iri pakati pe0.3 ne0.4 g/ml. Amylum inobatanidzwa nestarch saka HPCM imvura uye haina kushushikana zvakanyanya kupfuura mishonga yekubvisa chepfu yakajairika.
Mamiriro ezvinhu: starch yakazara nestarch, hpm powder, fiber pasi pemaikorosikopu kana magnifying glass, HPCM rudzi rwestarch inogona kudzora starch kana starch ne lentils.
Kunhuhwirira: Hydroxypropyl methylcellulose yakachena HPMC haigone kunhuhwirira ammonia, starch nedoro; HPMC inogona kunhuhwirira kunhuhwirira kwemarudzi ese, kunyangwe isina kunaka, inonzwa isina simba Shen.
Mhinduro yemvura: yakachena, HPMC methylcellulose demethoxypropyl brinzolamide mhinduro yemvura yakajeka, mwero wekuchengetedza mvura wakareruka ≥ 97%; HPMC hydrolyzed cellulose-diluted hydrolyzed cellulose ine turbid, mwero wekuchengetedza mvura hausviki 80%.
02. Kuchengetedzwa kwemethyl cellulose pakupisa kwakanyanya chiratidzo chakakosha chekuona mhando yemethyl cellulose ether. Zvinhu zvakaita sekupisa kwemhepo, kupisa kwemhepo uye kumhanya kwemhepo zvinokanganisa kusagadzikana kwezvigadzirwa zvesimende slurry uye gypsum. Nokudaro, kuwedzera huwandu hwakafanana hwezvigadzirwa zveHPMC mumwaka yakasiyana, pane misiyano yakati wandei mukushanda zvakanaka kwekuchengetedza mvura. Mukushanda kwacho, mhedzisiro ye serosa inonyorovesa inogona kugadziriswa nekuderedza huwandu hweHPMC inowedzerwa. Hydroxypropyl methylcellulose HPMC yepamusoro inogona kugadzirisa dambudziko rekuchengetedza mvura pakupisa kwakanyanya.
Methyl cellulose yemhando yepamusoro inogona kugoverwa zvakaenzana uye zvinobudirira mumidziyo yesimbi nesimende uye plastering, zvichiita firimu rakasimba, iro rinoburitswa zvishoma nezvishoma kubva pasi uye rinogadzira hydrophilic reaction ine inorganic curling materials, nokudaro richivimbisa kusimba uye kuomarara. HPMC cellulose methyl propoxylate ine hunhu hwakanaka uye yakafanana, uye oxygen ye ethyl bromide ne propionic acid groups pamwe chete ne molecular cellulose chain yakafanana, izvo zvinovandudza okisijeni nehydrogen bonding yeatomu yega yega ye hydroxyl ne ether. Mvura yakaderera inogona kushandura mvura yakasununguka kuita mvura inochengetedza dehwe, nokudaro ichidzora mvura kubva mumhepo, ichigadzira kupisa, uye hunyoro hwakawanda hwemvura.
Nekuda kwekuvakwa kwekupisa kwakanyanya muzhizha, kuti tiwane simba rekuchengetedza mvura, zvakakosha kuwedzera zvigadzirwa zveHPMC zvemhando yepamusoro zvichienderana nefomura, zvikasadaro zvinozokonzera matambudziko akadai sekuoma kwakanyanya, simba diki, kutsemuka, kuvhunduka kwekushanda uye kusiya basa, uye kuwedzera kuoma kwekuvaka kwevashandi. Nekudzikisa tembiricha, zvinokwanisika kuderedza zvishoma nezvishoma huwandu hweHPMC hunowedzerwa uye kuwana simba rakafanana rekuchengetedza mvura.
Nguva yekutumira: Kubvumbi-21-2023