Zvinhu zvakadai sekushisa kwemhepo, tembiricha uye kudzvinyirirwa kwemhepo zvinokanganisa kuvhurika kwehunyoro mudhaka resimende uye zvigadzirwa zvegypsum.Naizvozvo, mumwaka wakasiyana, iyo mvura yekuchengetedza mhedzisiro yehuwandu hwakafanana hweHPMC hwakasiyana.
Mukuvaka chaiko, iyo yekuchengeta mvura mhedzisiro yeslurry inogona kugadziriswa nekuwedzera kana kudzikisa huwandu hweHPMC hwakawedzerwa.Kuchengetwa kwemvura kwehydroxypropyl methyl cellulose ether pasi pemamiriro ekushisa kwakanyanya chiratidzo chakakosha kusiyanisa kunaka kwehydroxypropyl methyl cellulose ether.Yakanakisa HPMC yakatevedzana zvigadzirwa zvinogona kugadzirisa zvinobudirira dambudziko rekuchengetedza mvura pakupisa kwakanyanya.
Mumwaka wekushisa kwakanyanya, kunyanya munzvimbo dzinopisa uye dzakaoma uye dzakatetepa-layer kuvakwa padivi rezuva, yemhando yepamusoro HPMC inodiwa kuvandudza kuchengetwa kwemvura kweslurry.Yepamusoro-mhando HPMC ine yakanaka kwazvo yakafanana.Mapoka ayo methoxy uye hydroxypropoxy akagoverwa zvakaenzana pamwe chete ne cellulose molecular chain, iyo inogona kuvandudza kugona kwemaatomu eokisijeni pane hydroxyl uye ether zvisungo kushamwaridzana nemvura kugadzira hydrogen bonds, Kuitira kuti mvura yemahara ive yakasungwa mvura, nekudaro inonyatso kudzora. kubuda kwemvura kunokonzerwa nekupisa kwemamiriro ekunze, uye kuwana kuchengetwa kwemvura yakakwirira.
Yepamusoro-mhando cellulose HPMC inogona kuparadzirwa zvakafanana uye zvinobudirira mumatope esimende uye gypsum-based zvigadzirwa, uye kuputira zvese zvakasimba zvimedu, uye kugadzira firimu rekunyorova.Mvura iri muchigadziko inosunungurwa zvishoma nezvishoma kwenguva yakareba.Iyo yakanyungudutswa zvinhu inopinda hydration reaction kuti ive nechokwadi chekubatana kwesimba uye kumanikidza kusimba kwechinhu.Naizvozvo, mukupisa-kupisa kwezhizha kuvaka, kuti uwane mhedzisiro yekuchengetedza mvura, yemhando yepamusoro HPMC zvigadzirwa zvinofanirwa kuwedzerwa muhuwandu hwakakwana maererano neformula, kana zvisina kudaro, kusakwana kwemvura, kuderedzwa kwesimba, kuputika, kuputika uye kudonha kunokonzerwa. nekuomeswa zvakanyanya kuchaitika.Kunowedzerawo kuoma kwekuvaka kwevashandi.Sezvo tembiricha inodzikira, huwandu hweHPMC hwakawedzerwa hunogona kudzikiswa zvishoma nezvishoma, uye iyo yakafanana yekuchengetedza mvura inogona kuwanikwa.
Nguva yekutumira: Kubvumbi-25-2020