1. Zvinhu zvisina kugadzirwa zve cellulose ether
Cellulose ether yekuvaka ipolymer isinganyungudike mumvura ine tsime rinobva:
Cellulose (huni dzakaita semapundu kana donje), 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. Hunhu hwe cellulose ether
Hunhu hwe ethers dze cellulose hunoenderana ne:
Dhigirii rePolymerization DP Huwandu hwemayuniti eglucose—kusviba
Zvishandiso zvinotsiva uye mwero wekutsiva kwadzo, mwero wekufanana kwekutsiva —- zvinosarudza nzvimbo yekushandisa
Saizi yezvikamu—-Kunyungudika
Kurapa pamusoro (kureva kunonoka kunyungudika)—- nguva yekusviba ine chekuita nehuwandu hwepH hwesystem
Dhigirii rekuchinja—-Kuvandudza kuramba kwe sag uye kushanda kwe cellulose ether.
3. Basa re cellulose ether - kuchengetedza mvura
Cellulose ether imhando yepolymer chain compound inoumbwa nemayuniti eβ-D-glucose. Boka rehydroxyl riri mumorekuru neatomu yeokisijeni riri paether bond zvinoumba chisungo chehydrogen nemorekuru yemvura, iyo inonyudza molekyuri yemvura iri pamusoro pecheni yepolymer uye inosunga mamorekuru. Mucheni, inononoka kubuda kwemvura uye inonyudzwa nebase layer.
Mabhenefiti anopiwa nehunhu hwekuchengetedza mvura hwe cellulose ethers:
Hapana chikonzero chekunyorovesa hwaro hwepasi, nzira yekuchengetedza
kuvaka kwakanaka
simba rakakwana
4. Basa re cellulose ether - mhedzisiro yekukora
Cellulose ether inogona kuwedzera kubatana pakati pezvikamu zve gypsum-based mortar, izvo zvinoratidzwa nekuwedzera kwekuenderana kwemortar.
Mabhenefiti makuru anopiwa nekukora kwe cellulose ethers ndeaya:
Deredza dota revhu
Wedzera kunamira pachigadziko
Deredza kudonha kwedhaka
chengetedza dhaka rakaringana
5. Basa re cellulose ether - basa repamusoro
Cellulose ether ine mapoka ehydrophilic (mapoka ehydroxyl, ether bonds) uye mapoka ehydrophobic (mapoka emethyl, mapoka eethyl, glucose rings) uye i surfactant.
(Kusimba kwemvura pamusoro pemvura i72mN/m, surfactant i30mN/m, uye cellulose ether iHPC 42, HPMC 50, MC 56, HEC 69, CMC 71mN/m)
Mabhenefiti makuru anopiwa nekushanda kwepamusoro kwe cellulose ethers ndeaya:
Mhepo inopinza mhepo (kukwenya kwakapfava, kunyorova kwakaderera, modulus yakaderera, kuramba kuomeswa nechando)
Kunyorovesa (kunowedzera kunamira kune substrate)
6. Zvinodiwa zve gypsum yekupurasita yakapfava ye cellulose ether
(1). Kuchengeta mvura zvakanaka
(2). Kushanda zvakanaka, hapana kuchekwa
(3). Kukwenya kwechikamu kwakatsetseka
(4). Kudzivirira kudonha kwakasimba
(5). Tembiricha yejeli yakakwira kupfuura 75°C
(6). Mwero wekuputsika nekukurumidza
(7). Zvakanakisisa kuva nekwaniso yekuisa mhepo mugomba uye kudzikamisa mabubble emhepo ari mugomba.
11. Maitiro ekuziva chiyero che cellulose ether
Pakupurasita maplasta, zvakakosha kuchengetedza mvura yakakwana mumota kwenguva yakareba kuitira kuti ishande zvakanaka uye kudzivirira kutsemuka kwepamusoro. Panguva imwe chete, cellulose ether inochengetedza huwandu hwakakwana hwemvura kwenguva yakareba kuitira kuti mota igare yakagadzikana.
Huwandu hwe cellulose ether hunoenderana ne:
Kupenya kwe cellulose ether
Maitiro ekugadzira cellulose ether
Zviri Mukati Uye Kuparadzirwa kweCellulose Ether
Kupararira kweSaizi yeCellulose Ether
Mhando uye kuumbwa kwedhaka rakavakirwa pagypsum
Kukwanisa kunyudza mvura kwechikamu chepasi
Kushandiswa Kwemvura Pakupararira Kwevhu Rakagadzirwa NeGypsum
Kugadzwa kwenguva yekuisa dhaka rakagadzirwa negypsum
Ukobvu hwekuvaka uye mashandiro ekuvaka
Mamiriro ekuvaka (akadai sekupisa, kumhanya kwemhepo, nezvimwewo)
Nzira yekuvaka (kukwenya nemaoko, kupfapfaidza nemagetsi)
Nguva yekutumira: Ndira-18-2023