Ose maviri carboxymethyl cellulose uye methyl cellulose anogona kushandiswa semvura-inochengetedza purasita, asi iyo inochengetedza mvura yecarboxymethyl cellulose yakadzikira zvakanyanya kupfuura yemethyl cellulose, uye carboxymethyl cellulose ine sodium munyu, saka haina kukodzera plaster paris.Iine kudzoreredza mhedzisiro uye inoderedza simba re plaster yeParis.Methyl cellulose musanganiswa wakanakira wegypsum simenti zvinhu zvinosanganisa kuchengetedza mvura, kukora, kusimbisa, uye viscosifying, kunze kwekunge mamwe marudzi ane mhedzisiro yekudzosa kana dosi yakakura.yakakwirira kupfuura carboxymethyl cellulose.Nechikonzero ichi, akawanda gypsum composite gelling materials anotora nzira yekubatanidza carboxymethyl cellulose uye methyl cellulose, iyo isingangopi hunhu hwayo (sekudzoreredza mhedzisiro yecarboxymethyl cellulose, iyo inosimbisa mhedzisiro yemethyl cellulose), uye kushandisa zvayakanakira zvayakajairwa. (zvakadai sekuchengetedza kwavo mvura uye kukora maitiro).Nenzira iyi, zvese kuchengetedza kwemvura kuita kwegypsum cementitious material uye kushanda kwakazara kwegypsum cementitious material kunogona kuvandudzwa, ukuwo kuwedzera kwemutengo kunochengeterwa panzvimbo yakaderera.
Viscosity ndiyo yakakosha parameter yemethyl cellulose ether performance.
Kazhinji kutaura, iyo yakakwirira viscosity, zviri nani kuchengetedza mvura kwegypsum mortar.Nekudaro, iyo yakakwira viscosity, iyo yakakwira molecular huremu hwemethyl cellulose ether, uye kuderera kunoenderana mukunyungudika kwayo kuchava nemhedzisiro yakaipa pakusimba uye kuita kwekuvaka kwedhaka.Iyo yakakwirira viscosity, iyo inonyanya kuoneka iyo thickening maitiro padhaka, asi haina kuenzana zvakananga.Iyo yakakwirira iyo viscosity, iyo yakanyanya viscous iyo dhaka rakanyorova richava.Panguva yekuvaka, inoratidzirwa sekunamatira kune scraper uye yakakwirira kunamatira kune substrate.Asi hazvibatsiri kuwedzera simba rekuumbwa kwevhu rakanyorova pacharo.Mukuwedzera, panguva yekuvaka, iyo anti-sag kuita kwevhu rakanyorova haisi pachena.Pane zvinopesana, imwe yepakati uye yakaderera viscosity asi yakagadziridzwa methyl cellulose ethers ine yakanakisa mashandiro mukuvandudza kusimba kwechimiro chedhaka rakanyorova.
Fineness zvakare yakakosha kuita index yemethyl cellulose ether.Iyo MC inoshandiswa kudhaka yakaoma yehupfu inodiwa kuti ive hupfu ine yakaderera mvura zvirimo, uye kutsetseka kunodawo 20% kusvika 60% yehukuru hwepakati kuve isingasviki 63m.Iko kunaka kunokanganisa kunyungudika kwemethyl cellulose ether.Coarse MC inowanzoita granular, iyo iri nyore kuparadzira uye kunyunguduka mumvura pasina agglomeration, asi chiyero chekunyungudika chinononoka, saka haina kukodzera kushandiswa mumatope akaoma.Zvimwe zvigadzirwa zvemumba zvinotenderera, hazvisi nyore kuparadzira uye kunyungudika mumvura, uye zviri nyore kuunganidza.Mune yakaoma poda dhaka, MC inoparadzirwa pakati pezvinhu zvekusimbisa senge aggregate, yakanaka yekuzadza uye simende, uye chete yakanaka yakakwana poda inogona kudzivirira methyl cellulose ether agglomeration kana ichisanganiswa nemvura.Kana MC yawedzerwa nemvura kuti iparadze ma agglomerates, zvinonetsa kuparadzira nekunyungudutsa.Coarse MC haisi kungoparadza chete, asiwo inoderedza simba remunharaunda yedhaka.Kana dhaka rakaoma rakadaro rinoshandiswa munzvimbo yakakura, kukurumidza kuporesa kwedhaka remunharaunda kuchaderedzwa zvakanyanya, uye kuputika kuchaonekwa nekuda kwekuporesa nguva dzakasiyana.Kune iyo yakapfapfaidzwa dhaka ine mechanical kuvaka, chinodiwa chefineness chakakwira nekuda kwenguva pfupi yekusanganisa.
Iko kunaka kweMC zvakare kune imwe mhedzisiro pakuchengetedza kwayo mvura.Kazhinji, kune methyl cellulose ethers ine viscosity yakafanana asi kunaka kwakasiyana, pasi pemwero wekuwedzera mumwe chete, kukwenenzvera ndiko kunoita kuti mvura ichengetedze.
Nguva yekutumira: Feb-02-2023