Iintlobo zeMethyl Cellulose Ether
A. IHydroxypropyl methylcellulose (HPMC) yenziwe ikakhulu ngomqhaphu osulungekisiweyo kakhulu njengemathiriyeli ekrwada, efakwa i-etherified ngokukodwa phantsi kweemeko zealkaline.
B. I-Hydroxyethyl methyl cellulose (HEMC), i-ether ye-cellulose ye-non-ionic, i-powder emhlophe, engenavumba kwaye ayinambitheki.
C. IHydroxyethylcellulose (HEC) yi-non-ionic surfactant, imhlophe ngenkangeleko, ayinavumba kwaye ayinancasa kwaye ingumgubo ohamba lula.
Ezi zingentla ziyi-non-ionic cellulose ethers, kunye ne-ionic cellulose ethers (ezifana ne-carboxymethyl cellulose (CMC)).
Ngexesha lokusetyenziswa kodaka lomgubo owomileyo, ngenxa yokuba i-ionic cellulose (i-CMC) ayizinzile phambi kwe-calcium ion, ayifane isetyenziswe kwiinkqubo ze-inorganic gelling kunye nesamente kunye ne-slaked lime njengezinto zokufaka isamente. Kwezinye iindawo eTshayina, ezinye iipuphu zodonga lwangaphakathi zicutshungulwe ngestatshi esilungisiweyo njengesona sixhobo siphambili sesamente kunye nomgubo weShuangfei njengesizalisi sisebenzisa i-CMC njengento etyebisayo, kodwa ngenxa yokuba le mveliso ithanda ukungunda kwaye ayinyangeki ngamanzi, iyacinywa ngokuthe ngcembe. ngemarike .
Okwangoku, ezona zixhobo zixhaphakileyo ze-cellulose ethers kwiimveliso zodaka ezixutyiweyo zasekhaya zikwabizwa ngokuba yi-hydroxypropyl methylcellulose ether (HPMC) kunye ne-hydroxyethyl methylcellulose ether (HEMC). Kwiimveliso ezinokusetyenziswa okuhlukeneyo, i-dosage ye-cellulose ether nayo ihluke, iphantsi njenge-0.02% efana nodaka eludongeni ukuya kwi-0.1%. Njengodaka lokutyabeka, oluphezulu lunokusuka kwi-0.3% ukuya kwi-0.7% njenge-adhesive tile.
Iipropati zeCellulose Ether
❶ I-cellulose ether inogcino olubalaseleyo lwamanzi kudaka. Umsebenzi wayo wokugcinwa kwamanzi unokuthintela i-substrate ekuthatheni amanzi amaninzi ngokukhawuleza kwaye ithintele ukukhuphuka kwamanzi, ukwenzela ukuba kuqinisekiswe amanzi aneleyo xa i-samente i-hydrated. Inokuthintela ngokufanelekileyo udaka ukuba lome kwaye luqhekeke ngenxa yokulahleka kwamanzi ngokukhawuleza, ukwenzela ukuba udaka lunexesha elide lokwakha.
Ngokuqhelekileyo, ukugcinwa kwamanzi kwi-sement slurry kwanda ngokunyuka komxholo we-cellulose ether. Inkulu i-viscosity ye-ether ye-cellulose eyongeziweyo, ngcono ukugcinwa kwamanzi.
❷ Umphumo wokuqina we-cellulose ether unokulawula udaka ukuze ufezekise ukuhambelana okungcono, ukuphucula ukuhambelana kodaka, ukuphumeza umphumo wokuchasana ne-sag, ukuphucula ukusebenza, kunye nokwandisa kakhulu ukusebenza kakuhle kokwakhiwa.
❸ I-Cellulose ether inokuphucula ngokubonakalayo i-viscosity emanzi yodaka olumanzi, iqinisekisa ukuba udaka olumanzi lunesiphumo esihle sokudibanisa kwii-substrates ezahlukeneyo.
❹ I-ether ye-Cellulose iphucula ngokubonakalayo amandla ebhondi yodaka, kwaye inokuqinisekisa ixesha elaneleyo lamanzi ukuze ifake amanzi ngokupheleleyo kwisamente nakwimekobume yobushushu obuphezulu, ngaloo ndlela iqinisekisa ukubonda okungcono kodaka.
Indawo yokusetyenziswa kwe-ether cellulose
Usekwe kwisamente:
⑴, iputty, ⑵, udaka lokutyabeka, ⑶, udaka olungangenwa manzi, ⑷, i-agent, ⑸, udaka lokutyabeka, ⑹, udaka lokutshiza, ⑺, udaka lokuhombisa, ⑻, i-tile yokuncamathelisa, ⑼, isamente ukuzilinganisa, ⑽ ⑾, i-masonry mortar, ⑿, i-mortar yokulungisa, ⒀, i-thermal insulation slurry, ⒁, i-EIFS i-thermal insulation bonding mortar, ⒂, i-non-shrinkage grouting material.
Ezinye izinto zokwakha:
⑴, udaka olungangeni manzi, ⑵, udaka olunamacandelo amabini.
Ngokuphuhliswa kodaka oluxutyiweyo, i-cellulose ether ibe yinto ebalulekileyo yodaka lwesamente. Nangona kunjalo, zininzi iintlobo kunye neenkcukacha ze-cellulose ether, kwaye umgangatho phakathi kweebhetshi usaguquguquka. Xa uyisebenzisa, kufuneka uqaphele:
1. Iimpawu zokusebenza zodaka olulungisiweyo zihambelana ngokusondeleyo nophuhliso lwe-viscosity ye-cellulose ether. Nangona iimveliso ezine-viscosity ephezulu zine-viscosity yokugqibela, ngenxa yokuchithwa okucothayo, kuthatha ixesha elide ukufumana i-viscosity yokugqibela; ukongeza, I-ether cellulose enamasuntswana arhabaxa ithatha ixesha elide ukufumana i-viscosity yokugqibela, ngoko ke imveliso ene-viscosity ephezulu ayifuni ukuba neempawu ezingcono zokusebenza.
2. Ngenxa yokuncitshiswa kweqondo lepolymerization ye-cellulose ether izinto eziluhlaza, i-viscosity ephezulu ye-cellulose ether nayo ilinganiselwe.
Ixesha lokuposa: Feb-02-2023