Hydroxypropyl methyl cellulose mudhaka rakaoma, cellulose ether kuwedzera yakaderera, asi inogona kuvandudza zvakanyanya kushanda kwedhaka rakanyorova, dhaka rekuvaka dhizaini ndeimwe yezvinowedzera zvinowedzera. Ikozvino, hydroxypropyl methyl cellulose inoshandiswa mune yakaoma mortar cellulose ether inonyanya hydroxypropyl methyl cellulose ether (HPMC). Hydroxypropyl methyl cellulose mudhaka rakaoma HPMC inonyanya kuita basa mukuchengetedza mvura, kukora, kuvandudza mashandiro ekuvaka. Hydroxypropyl methylcellulose HPMC haitore chikamu mune chero chemakemikari maitiro, inongotamba basa rekubatsira. Putty poda yakawedzera mvura, pamadziro, ikemikari inoitika, nekuti kune chizvarwa chechinhu chitsva, putty poda pamadziro kubva pamadziro, pasi kuita upfu, uye yakazoshandiswa, haichaiti, nekuti yakagadzira a. zvinhu zvitsva (calcium carbonate). Izvo zvikamu zvikuru zvegrey calcium powder ndezvi: Ca (OH) 2, CaO uye zvishoma zveCaCO3 musanganiswa, CaO+H2O=Ca(OH)2 - Ca(OH)2+CO2=CaCO3↓+H2O calcium ash mumvura. uye mhepo pasi pechiito che CO2, kuumbwa kwe calcium carbonate, uye HPMC chete kuchengetedza mvura, yebetsero karusiyamu dota zviri nani kuita, pachayo haina kutora chikamu mune chero maitiro.
Hunhu hwepamusoro hwehydroxypropyl methyl cellulose inogona kupararira zvakafanana uye zvinobudirira mudhaka resimende uye plaster zvigadzirwa, uye kurongedza zvese zvimedu zvimedu, uye kugadzira dhizaini rekunyorova firimu, hunyoro huri mujinga kwenguva yakareba zvishoma nezvishoma hunoburitswa, uye inorganic cementitious material hydration reaction. , kuitira kuti ive nechokwadi chekusimba kwechisungo uye kusimba kwekumanikidza kwezvinhu. Naizvozvo, mukupisa kwezhizha kuvakwa kwezhizha, kuitira kuti uwane kuchengetedza kwemvura, unofanirwa kuwedzera mhando yepamusoro yeHPMC zvigadzirwa zvinoenderana neformula, zvikasadaro, pachava nekuoma nekukurumidza uye zvichikonzerwa nekusakwana hydration, kuderedza simba, kuputika, isina chinhu. dhiramu uye kudonha uye mamwe matambudziko emhando, asi zvakare kuwedzera kuoma kwevashandi kuvaka. Sezvo tembiricha inoderera, huwandu hwemvura hunowedzerwa neHPMC hunogona kudzikiswa zvishoma nezvishoma, uye iyo yakafanana yekuchengetedza mvura inogona kuwanikwa.
Nguva yekutumira: Sep-16-2022