Cellulose Ether Classification
Cellulose ether izwi rinowanzoreva nhevedzano yezvigadzirwa zvinogadzirwa nekuita kwealkali cellulose uye etherifying agent mune mamwe mamiriro.Kana alkali cellulose inotsiviwa neajenti akasiyana etherifying, akasiyana cellulose ethers anozowanikwa.
Zvinoenderana neiyo ionization yezvinhu zvinotsiva, cellulose ethers inogona kukamurwa kuita mapoka maviri: ionic (senge carboxymethyl cellulose) uye nonionic (senge methyl cellulose).
Zvinoenderana nerudzi rweinotsiva, cellulose ether inogona kukamurwa kuita monoether (senge methyl cellulose) uye yakasanganiswa ether (senge hydroxypropyl methyl cellulose).
Zvinoenderana nekunyungudika kwakasiyana, inogona kukamurwa kuita kunyungudika kwemvura (senge hydroxyethyl cellulose) uye organic solvent solubility (senge ethyl cellulose).
Mvura-soluble cellulose ethers inoshandiswa mumatope akaoma-akavhenganiswa akakamurwa kuva pakarepo-kunyunguduka uye pamusoro-yakagadziriswa kunonoka-kuparara kweselulosi ethers.
Misiyano yavo iripi?Uye sei kunyatso gadzirisa kuti ive 2% aqueous mhinduro yekuongororwa viscosity?
Chii chinonzi surface treatment?
Chii chingaita pa cellulose ether?
chekutanga
Kurapa kwepamusoro inzira yekugadzira dhizaini pamusoro pechigadziko chine michina, yemuviri uye yemakemikari zvinhu zvakasiyana kubva kune iyo base.
Chinangwa chepamusoro chekurapa kwe cellulose ether ndechekunonoka nguva yekubatanidza cellulose ether nemvura kuti isangane neinononoka kukora zvinodiwa zvemamwe mapendi ependi, uye zvakare kuwedzera kuonda kwekupokana kwe cellulose ether uye kuvandudza kuchengetedza kugadzikana.
Musiyano kana mvura inotonhora inogadziriswa ne 2% aqueous solution:
Iyo yepamusoro-yakagadziriswa cellulose ether inogona kukurumidza kupararira mumvura inotonhora uye haisi nyore kuunganidza nekuda kwekunonoka kwayo viscosities;
Cellulose ether isina kurapwa kwepamusoro, nekuda kwekukurumidza kwayo viscosities, ichaita viscous isati yanyatsoparadzirwa mumvura inotonhora, uye inowanzoitika kune agglomeration.
Maitiro ekugadzirisa iyo isiri-pamusoro-yakagadziriswa cellulose ether?
1. Kutanga kuisa mune imwe chiyero che-non-face-treated cellulose ether;
2. Zvadaro wedzera mvura inopisa inenge 80 degrees Celsius, uremu chikamu chetatu chemvura inodiwa, kuitira kuti inogona kunyatsoputika uye kupararira;
3. Zvadaro, zvishoma nezvishoma udururire mumvura inotonhora, uremu huri zvikamu zviviri kubva muzvitatu zvemvura yakasara inodiwa, ramba uchikurudzira kuti iite inonamira zvishoma nezvishoma, uye hapazovi nekubatana;
4. Pakupedzisira, pasi pemamiriro ehuremu hwakaenzana, uise mubhati yemvura yekushisa nguva dzose kusvikira kutonhora kuchidonha kusvika ku20 degrees Celsius, uye ipapo viscosity test inogona kuitwa!
Nguva yekutumira: Feb-02-2023