1. Raw zvinhu zve cellulose ether
Cellulose ether yekuvaka isiri-ionic mvura-inonyungudika polima ine sosi:
Cellulose (huni pulp kana donje linter), halogenated hydrocarbons (methane chloride, ethyl chloride kana mamwe marefu-chain halides), epoxy compounds (ethylene oxide, propylene oxide, nezvimwewo)
HPMC-Hydroxypropyl Methyl Cellulose Ether
HEC-Hydroxyethyl Cellulose Ether
HEMC-Hydroxyethyl Methyl Cellulose Ether
EHEC-Ethyl Hydroxyethyl Cellulose Ether
MC-methyl cellulose ether
2. Zvinhu zve cellulose ether
Zvimiro zve cellulose ethers zvinoenderana ne:
Polymerization degree DP Nhamba yeglucose units-viscosity
Vanotsiva uye dhigirii ravo rekutsiva, dhigirii rekufanana kwekutsiva - sarudza nzvimbo yekushandisa
Particle Size--Solubility
Kurapa kwepamusoro (kureva kunonoka kupera) --viscosity nguva inobatana neiyo pH kukosha kweiyo system.
Dhigirii rekugadzirisa--Kuvandudza kusaga uye kushanda kwe cellulose ether.
3. Basa re cellulose ether - kuchengetedza mvura
Cellulose ether iketani yepolymer inoumbwa nezvikamu zve β-D-glucose.Boka rehydroxyl riri mumorekuru neatomu reokisijeni riri paether bond rinoumba chisungo chehydrogen nemorekuru remvura, iro rinoshambadza morekuru remvura riri pamusoro pepolymer cheni uye rinomonerera mamorekuru.Mucheni, inononoka kubuda kwemvura uye inotorwa ne base layer.
Mabhenefiti anopihwa nekuchengetedza mvura zvivakwa zve cellulose ethers:
Hapana chikonzero chekunyorovesa base layer, kuchengetedza maitiro
chivakwa chakanaka
simba rakakwana
4. Basa re cellulose ether - thickening effect
Cellulose ether inogona kuwedzera kuwirirana pakati pezvikamu zvegypsum-based mortar, iyo inoratidzwa mukuwedzera kwekuenderana kwedhaka.
Mabhenefiti makuru anopihwa nekukora kwe cellulose ethers ndeaya:
Deredza madota evhu
Wedzera kunamatira kune base
Deredza kudonha kwedhaka
chengeta dope zvakaenzana
5. Basa re cellulose ether - basa repamusoro
Cellulose ether ine hydrophilic mapoka (hydroxyl mapoka, ether bond) uye hydrophobic mapoka (methyl groups, ethyl groups, glucose rings) uye ari surfactant.
(Kunetsa kwepamusoro pemvura i72mN/m, surfactant i30mN/m, uye cellulose ether iHPC 42, HPMC 50, MC 56, HEC 69, CMC 71mN/m)
Mabhenefiti makuru anopihwa nebasa repamusoro re cellulose ethers ndeaya:
Mhepo-entraining mhedzisiro (yakatsetseka kukorobha, yakaderera wet density, yakaderera elastic modulus, kutonhora-kunyungudika kuramba)
Kunyorova (kunowedzera kunamatira kune substrate)
6. Zvinodiwa zvemwenje plastering gypsum ye cellulose ether
(1).Kuchengetwa kwemvura kwakanaka
(2).Kushanda kwakanaka, hapana caking
(3).Batch scraping yakatsetseka
(4).Yakasimba anti-sagging
(5).Tembiricha yegel inodarika 75°C
(6).Fast dissolution rate
(7).Zvakanakisa kuve nekugona kupinza mhepo uye kudzikamisa mabhuru emhepo mudhaka
11. Nzira yekuziva sei chiyero che cellulose ether
Pakupura plasters, zvinodikanwa kuchengetedza mvura yakakwana mudhaka kwenguva yakareba kuitira kuti uve nekushanda kwakanaka uye kudzivirira kuputika kwepamusoro.Panguva imwecheteyo, cellulose ether inochengetedza huwandu hwakakodzera hwemvura kwenguva yakareba kuita kuti dhaka rive neyakagadzika coagulation process.
Kuwanda kwe cellulose ether kunoenderana ne:
Viscosity ye cellulose ether
Iyo nzira yekugadzira cellulose ether
Substituent Content uye Kugoverwa kweCellulose Ether
Particle Size Distribution yeCellulose Ether
Mhando uye kuumbwa kwegypsum-based mortar
Kunyura kwemvura kweiyo base layer
Kushandiswa kweMvura kweKupararira Kwemaitiro eGypsum-Based Motar
Kuisa nguva yegypsum-based mortar
Kuvaka ukobvu uye kuita kwekuvaka
Mamiriro ekuvaka (senge tembiricha, kumhanya kwemhepo, nezvimwewo)
Nzira yekuvaka (manual scraping, mechanical spraying)
Nguva yekutumira: Jan-18-2023