Iye zvino zvave kuwedzera misika yehydroxypropyl carboxymethyl cellulose uye mitengo haina kuenzana, nyore uye nekukurumidza kuona mhando yehydroxypropyl carboxymethyl cellulose yave nyaya yakakosha!Saka sei kutonga kunaka kwehydroxypropyl methylcellulose?Chinhu chekutanga kutarisa kuchena kwehydroxypropyl cellulose;kunyangwe kuchena kusingakwanise kuona kana HPMC yakakodzera kushandiswa, vamwe vagadziri vasina hunhu vanozowedzera chena mumiriri panguva yekugadzirisa, izvo zvinokanganisa kunaka kwayo.Asi kazhinji kutaura, mazhinji akanakisa cellulose ether ane kuchena kuri nani.
Chechipiri, zvinoenderana nekunaka kwehydroxypropyl methylcellulose: saizi ye hydroxypropyl carboxymethyl cellulose ndeye 80-100 mesh, isingasviki 120 mesh, uye hydroxyethyl cellulose HECHPMC inenge zana mesh.Yakawanda yehpmc ndeye 60-80 mesh.Kazhinji, iyo yakapfava iyo methyl cellulose, zviri nani kupararira.
Kujeka kwe cellulose ether mumushonga: isa HPMC mumvura kuti ibudise yakajeka colloidal mhinduro, iyo yakakwirira kujeka, iyo yakakwirira kujeka, iyo inodzika iyo isinganyungudika zvinhu.
Kana chinhu chacho chadziyirwa, chinonyunguduka kana kuti madziva.Iyo hydrophobic uye inonyungudika.Concrete ndiyo kiyi yekubatanidza uye demulsifying mbishi zvinhu zvemvura-inodzivirira putty poda.Nheyo yekudzivirira kwemvura ndeyotevera: kana iyo redispersible latex powder uye simenti zvakasanganiswa nemvura, iyo latex powder icharamba ichidzokera kune yekutanga emulsion fomu, uye latex particles Inopararira zvakafanana mu simenti slurry.Mushure mekunge simende yasangana nemvura, iyo hydration reaction inotanga, uye iyo Ca (OH) 2 mhinduro inosvika pakuzara uye makristasi anonaya.Panguva imwecheteyo, ettringite crystals uye calcium silicate hydrate colloids inoumbwa, uye latex particles inoiswa paPa gel uye unhydrated simenti particles, sezvo hydration reaction inoenderera mberi, zvigadzirwa zve hydration zvinoramba zvichiwedzera, uye latex particles zvishoma nezvishoma. unganidza mavhodhi ezvigadzirwa zvemukati sesimende, uye gadzira dhizaini yakazara pamusoro peiyo simende gel., nekuda kwekudzikira zvishoma nezvishoma kwekunyorova kwakaoma, iyo yakavharwa yakavharwa zvakare yakanyungudutswa yelatex zvimedu mujeli uye voids inobatana kuti iite inoenderera firimu, ichigadzira musanganiswa neinopindirana matrix yesamende paste, uye kugadzira simende paste uye humwe hupfu. zvakanamatirwa kune mumwe nemumwe.
Nguva yekutumira: May-11-2023