01. Musiyano pakati pekunyepedzera hydroxypropyl methyl uye yepamusoro-mhando hydroxypropyl methyl.
Chitarisiko: Pure starch HPCM inoratidzika yakanyanyisa homogeneous, pakati pe 0.3 ne 0.4 g/ml.Amylum inosungirira kune sitachi saka HPCM imvura uye isinganyanyi kushushikana pane yakajairwa detoxifiers.
Mamiriro ezvinhu: sitachi izere nesitachi, hpm hupfu, faibha pasi pemaikorosikopu kana girazi rinokudza, HPCM rudzi rwesitachi runokwanisa kudzora sitachi kana sitachi nenyemba.
Kunhuwa: Pure hydroxypropyl methylcellulose HPMC haigoni kunhuwa ammonia, starch uye doro;yakasvibiswa hydroxypropyl methylcellulose HPMC inogona kunhuhwirira marudzi ese ekunhuhwirira, kunyangwe ikasanaka, inonzwa kupera simba Shen.
Aqueous solution: yakachena, HPMC methylcellulose demethoxypropyl brinzolamide aqueous solution yakajeka, chiedza chekuchengetedza mvura ≥ 97%;diluted hydrolyzed cellulose-diluted HPMC hydrolyzed cellulose yakawedzera turbid, mwero wekuchengetedza mvura hausvike 80%.
02. Kuchengetedzwa kwemethyl cellulose pakupisa kwepamusoro chiratidzo chakakosha chekuona kunaka kwemethyl cellulose ether.Zvinhu zvakadai sekushisa kwemhepo, tembiricha yemhepo uye kumhanya kwemhepo zvinokanganisa kushata kwesimende slurry uye zvigadzirwa zvegypsum.Naizvozvo, kuwedzera huwandu hwakafanana hwezvigadzirwa zveHPMC mumwaka wakasiyana, kune mimwe misiyano mukuchengetedza-kugona kwemvura.Mune chaiyo yekushanda maitiro, mhedzisiro yekunyorova serosa inogona kugadziriswa nekudzikisa huwandu hweHPMC hwakawedzerwa.High-quality hydroxypropyl methylcellulose HPMC inogona kunyatsogadzirisa dambudziko rekupisa kwemvura kuchengetedza.
Yakakwirira-mhando methyl cellulose inogona kugoverwa zvakaenzana uye zvinobudirira musimende dhaka uye plastering zvigadzirwa, kugadzira iyo-yakasimba firimu, iyo inoburitswa zvishoma nezvishoma kubva pachigadziko chepasi uye inoumba hydrophilic reaction ine inorganic curling zvinhu, nekudaro kuve nechokwadi kusimba uye kuoma.HPMC cellulose methyl propoxylate imhando uye yunifomu, uye iyo okisijeni ye ethyl bromide uye propionic acid mapoka pamwe chete ne molecular cellulose cheni yunifomu, iyo inovandudza iyo oksijeni nehydrogen bonding yeatomu imwe neimwe yakakosha yehydroxyl uye ether Mvura yakaderera inogona kushandura mvura yemahara kuita. mvura inochengetedza matehwe, nekudaro ichinyatso kudzora kubuda kwemvura, kugadzira kupisa, uye kunyorova kwemvura.
Nekuda kweiyo tembiricha yekuvaka muzhizha, kuti uwane mhedzisiro yekuchengetedza mvura, zvinodikanwa kuti uwedzere emhando yepamusoro zvigadzirwa zveHPMC zvinoenderana neformula, zvikasadaro zvinokonzeresa matambudziko sekuomesa zvakanyanya, kuderera simba, kuputika, kusaita basa. kuvhunduka uye kudonha, uye kuwedzera kuoma kwekuvaka kwevashandi.Paunenge uchidzikisa tembiricha, zvinokwanisika kudzikisira zvishoma nezvishoma huwandu hweHPMC yakawedzerwa uye kuwana yakafanana-yekuchengetedza mvura maitiro.
Nguva yekutumira: Kubvumbi-21-2023