Ingoa matū | Methyl Hydroxyethyl Cellulose |
kupu taurite | Cellulose ether, 2-hydroxyethyl methyl cellulose, Cellulose, 2-hydroxyethyl methyl ether, hydroxyethyl Methyl cellulose, MHEC, HEMC |
nama CAS | 9032-42-2 |
Waitohu | EipponCell |
Koeke Hua | MHEC LH 620M |
Wairewa | Wai Wairewa Cellulose ether |
Te ahua tinana | Ma ki te paura cellulose ma-kore |
makuku | Mōrahi.6% |
PH | 4.0-8.0 |
Viscosity Brookfield 2% otinga | 10000-20000mPa.s |
Viscosity NDJ 2% otinga | 16000-24000mPa.S |
ihirangi pungarehu | Mōrahi5.0% |
Rahi mata | 99% paahi 100mesh |
Waehere HS | 39123900 |
Ko te EipponCell MHEC LH 620M methyl hydroxyethyl cellulose e whakamahia ana i roto i te gypsum slurry ki te whakarato i te paanga matotoru.I te pāmahana o te rūma, i te pikinga o te pokey me te inenga o te cellulose ether, ka kaha ake te kaha o te whakapakeke.Heoi, i te pikinga o te pāmahana, ka heke te pokey o te cellulose ether, ka hua te ngoikoretanga o tona paanga matotoru.Na tenei ka heke iho te ahotea kutikuti hua, te kirikiri kirihou, me te pseudoplasticity o te ranunga gypsum, i te mutunga ka kore e pai te mahi.
Ko te cellulose ether e whakanui ana i te pupuri wai o te gypsum.Heoi, i te pikinga o te pāmahana, ka tino heke te pupuri wai o te gypsum whakarerekē, ka ngaro rawa atu te hua whakapai pupuri wai i te 60 °C.Ko te reiti pupuri wai o te gypsum slurry ka tino pai ake e te cellulose ether, a ko te reiti pupuri wai ka tae ki te waahi waiwai me te pikinga o nga ihirangi mo te HPMC slurry gypsum whakarereke me nga rereke rereke.Ko te tikanga, ko te pupuri wai o te gypsum he rite ki te pokey o te cellulose ether, engari he iti te paanga ki te pokey teitei.
Ko nga huringa i roto i te pupuri wai o nga etera cellulose me te pāmahana e hono tata ana ki te ahua moroiti o nga etera cellulose i roto i te waahanga wai.I tetahi kukū, ko te cellulose ether te kaha ki te whakahiato me te hanga i nga hononga colloidal nui, me te aukati i nga awa tuku wai o te ranunga gypsum kia pai ai te pupuri wai.Heoi, i te pikinga o te pāmahana, ka marara ano nga momo waiariki o te cellulose ether i nga hononga colloidal nui i hanga i mua, ka mutu ka heke te pupuri wai.
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