1. Imathiriyeli ekrwada ye-cellulose ether
I-Cellulose ether yolwakhiwo yipolima enganyityilikiswa ngamanzi i-ionic enomthombo wayo:
I-cellulose (i-pulp yomthi okanye i-cotton linter), i-halogenated hydrocarbons (i-methane chloride, i-ethyl chloride okanye enye i-halides emide), i-epoxy compounds (i-ethylene oxide, i-propylene oxide, njl.
HPMC-Hydroxypropyl Methyl Cellulose Etere
HEC-Hydroxyethyl Cellulose Ether
HEMC-Hydroxyethyl Methyl Cellulose Ether
EHEC-Ethyl Hydroxyethyl Cellulose Etere
I-MC-methyl cellulose ether
2. Iipropati ze-cellulose ether
Iimpawu ze-cellulose ethers zixhomekeke koku:
I-Polymerization degree DP Inani leeyunithi ze-glucose-viscosity
Abathathi-nxaxheba kunye neqondo labo lokutshintshwa, iqondo lokufana kokutshintshwa -- misela indawo yesicelo
Ubungakanani besuntswana--Ukunyibilika
Unyango lomphezulu (okt ukulibaziseka kokupheliswa)—-ixesha le-viscosity linxulumene nexabiso le-pH yenkqubo
Idigri yokuguqulwa--Phucula ukuxhathisa kwe-sag kunye nokusebenza kwe-cellulose ether.
3. Indima ye-cellulose ether - ukugcinwa kwamanzi
I-Cellulose ether yikhompawundi yekhonkco yepolymer eyenziwe ngeeyunithi ze-β-D-glucose. Iqela le-hydroxyl kwi-molecule kunye ne-athomu ye-oksijini kwi-ether bond yenza ibhondi ye-hydrogen kunye ne-molecule yamanzi, ebhengeza i-molecule yamanzi kumphezulu we-polymer chain kwaye idibanise iimolekyuli. Kwikhonkco, ilibazisa ukuphuphuma kwamanzi kwaye ifunnwe ngumaleko wesiseko.
Izibonelelo ezibonelelwa ngogcino lwamanzi lwe-cellulose ethers:
Akukho mfuneko yokumanzisa umaleko wesiseko, inkqubo yokulondoloza
ulwakhiwo oluhle
amandla aneleyo
4. Indima ye-cellulose ether - isiphumo sokuqina
I-ether ye-cellulose inokunyusa ukudibanisa phakathi kwamacandelo e-gypsum-based mortar, ebonakaliswa ngokunyuka kokuhambelana komdaka.
Iingenelo eziphambili ezibonelelwa kukutyeba kwe-cellulose ethers zezi:
Nciphisa uthuthu lomhlaba
Ukwandisa ukunamathela kwisiseko
Nciphisa ukudilika kodaka
lugcine udaka lulungelelene
5. Indima ye-cellulose ether - umsebenzi ongaphezulu
I-cellulose ether iqulethe amaqela e-hydrophilic (amaqela e-hydroxyl, iibhondi ze-ether) kunye namaqela e-hydrophobic (amaqela e-methyl, amaqela e-ethyl, amakhonkco e-glucose) kwaye i-surfactant.
(I-tension surface yamanzi yi-72mN/m, i-surfactant yi-30mN/m, kunye ne-cellulose ether yi-HPC 42, HPMC 50, MC 56, HEC 69, CMC 71mN/m)
Iinzuzo eziphambili ezibonelelwa ngumsebenzi ongaphezulu we-cellulose ethers zezi:
Impembelelo yokuqinisa umoya (ukukhuhla okugudileyo, ukuxinana okumanzi okusezantsi, imodyuli esezantsi elastiki, ukumelana nokunyibilika komkhenkce)
Ukumanzisa (ukwandisa ukunamathela kwi-substrate)
6. Iimfuno zegypsum yokutyabeka ukukhanya kwe-cellulose ether
(1). Ukugcinwa kakuhle kwamanzi
(2). Ukusebenza kakuhle, akukho caking
(3). Ibhetshi ikhuhla kakuhle
(4). I-anti-sagging enamandla
(5). Ubushushu bejeli bungaphezulu kwama-75°C
(6). Isantya sokupheliswa ngokukhawuleza
(7). Kungcono ukuba ube namandla okufaka umoya kunye nokuzinzisa amaqamza omoya kumdaka
11. Indlela yokumisela idosi ye-cellulose ether
Ukufakela i-plaster, kuyimfuneko ukugcina amanzi aneleyo kwi-mortar ixesha elide ukwenzela ukuba kube nokusebenza kakuhle kunye nokuphepha ukuqhekeka kwendawo. Kwangaxeshanye, i-cellulose ether igcina isixa esifanelekileyo samanzi ixesha elide ukwenza udaka lube nenkqubo ezinzileyo yokudibanisa.
Isixa se-cellulose ether sixhomekeke kwi:
I-viscosity ye-cellulose ether
Inkqubo yokuvelisa i-cellulose ether
Umxholo obambeleyo kunye nokuhanjiswa kweCellulose Ether
I-Particle Ubungakanani Ukuhanjiswa kwe-Cellulose Ether
Iintlobo kunye nokubunjwa kwe-gypsum-based mortar
Umthamo wokufunxa amanzi womgangatho wesiseko
UkuSetyenziswa kwamanzi kuMgangatho woKusasazwa kweGypsum-Based Mortar
Ukumisela ixesha lodaka olusekelwe kwi-gypsum
Ubukhulu bokwakha kunye nokusebenza kokwakha
Iimeko zokwakha (ezifana nobushushu, isantya somoya, njl.njl.)
Indlela yokwakha (ukukhuhla ngesandla, ukutshiza ngoomatshini)
Ixesha lokuposa: Jan-18-2023